CA2246888C - Intumescent coating stable under tropical conditions - Google Patents
Intumescent coating stable under tropical conditions Download PDFInfo
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- CA2246888C CA2246888C CA002246888A CA2246888A CA2246888C CA 2246888 C CA2246888 C CA 2246888C CA 002246888 A CA002246888 A CA 002246888A CA 2246888 A CA2246888 A CA 2246888A CA 2246888 C CA2246888 C CA 2246888C
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
- C09D5/185—Intumescent paints
Abstract
The invention relates to a fireproof coating which forms an insulating layer and is based on carbon--forming substances forming a foam layer in the case of a fire, film-forming binders, blowing agents and con-ventional assistants and additives, wherein said coating contains, as blowing agents, a melamine salt and/or guanidine salts and/or microencapsulated melamine.
The fireproof coating forming an insulating layer and according to the invention is stable in particular under tropical conditions (up to 100% rel. humidity, about 75×C), i.e. it releases only very little NH3.
The fireproof coating forming an insulating layer and according to the invention is stable in particular under tropical conditions (up to 100% rel. humidity, about 75×C), i.e. it releases only very little NH3.
Description
The invention relates to a fireproof coating which forms an insulating layer and is based on carbon-forming substances forming a foam layer in the case of a fire, film-forming binders, blowing agents and conventional assistants and additives.
Fireproof coatings forming an insulating layer, also referred to as intumescent coatings, are distinguished by the fact that they foam on appropriate action of heat in the case of a fire and, as a result of this foaming of the abovementioned fireproof coating, the passage of heat to steel structures, ceilings, walls, cables, pipes and the like is prevented or at least impeded.
US 4,965,296 Al describes a flame-retardant material which is composed of a flame-retardant coating material and an electrically conductive material. The flame-retardant coating material comprises foam-forming and carbon-forming substances, a gas-producing compound, a film-forming binder and corresponding solvents.
Optionally, conventional, further ingredients may be present.
US 4,879,320 describes a similar flame-retardant composition, to which however ceramic fiber material is added instead of a conductive material.
Fireproof coatings forming an insulating layer, also referred to as intumescent coatings, are distinguished by the fact that they foam on appropriate action of heat in the case of a fire and, as a result of this foaming of the abovementioned fireproof coating, the passage of heat to steel structures, ceilings, walls, cables, pipes and the like is prevented or at least impeded.
US 4,965,296 Al describes a flame-retardant material which is composed of a flame-retardant coating material and an electrically conductive material. The flame-retardant coating material comprises foam-forming and carbon-forming substances, a gas-producing compound, a film-forming binder and corresponding solvents.
Optionally, conventional, further ingredients may be present.
US 4,879,320 describes a similar flame-retardant composition, to which however ceramic fiber material is added instead of a conductive material.
US 5,225,464 describes an aqueous intumescent formula-tion based on a reaction product of phosphoric acid, melamine and monoammonium phosphate, which formulation, with pentaerythritol, chlorinated hydrocarbons and further compounds, in particular, polyvinyl acetate, is said to give an improved intumescent coating material.
Numerous intumescent formulations are disclosed in "Fire Retardants Formulations Handbook" (Author;
Vijay Mohan Bhatnagar, 1972).
DE 42 18 184 Al describes an aqueous binder mixture comprising an aqueous solution and/or dispersion of a combination of a) at least one NCO prepolymer which is soluble and/or dispersible in water in the presence of component b) and has urethane groups and blocked isocyanate groups and b) a polyamine component comprising at least one (cyclo)aliphatic polyamine having at least two primary and/or secondary amino groups.
Finally, DE 43 43 668 describes expandable, flame-retardant coating materials comprising at least from 4 to 25% by weight of a film-forming binder, from 10 to 4% by weight of ammonium polyphosphate, from 8 to 40% by weight of at least one substance which carbonizes under the action of heat, from 6 to 25% by weight of a blowing agent, from 0 to 5% by weight of a dispersant, from 0 to 25% by weight of fillers.
The disadvantage of the abovementioned fireproof coating is in general that they are halogen-containing or do not have.a sufficiently wide range of uses.
Particularly in the case of formulations which contain melamine as blowing agent, it was found that these combinations release relatively large amounts of ammonia (NH3) at elevated temperature, and high atmospheric humidity, for example under tropical conditions.
The present invention provides fireproof coatings which form an insulating layer and which, even under climatic conditions as are encountered, for example, in the tropics, release only very small amounts of NH3 - even at high atmospheric humidity and at elevated temperature.
This is achieved by a fireproof coating of the type described at the outset which forms an insulating layer, which coating contains, as blowing agents, a melamine salt and/or guanidine salt and/or microencapsulated melamine.
3a In one aspect, the invention provides a composition for forming a fireproof coating that forms a foam layer on exposure to fire, which composition comprises:
a carbon-forming substance; a foam-forming substance; a film-forming binder; an assistant or additive; and a blowing agent selected from the group consisting of a melamine salt, a guanidine salt, a microencapsulated melamine and a combination thereof.
The melamine salts are preferably melamine phosphate, melamine cyanurate, melamine borate and melamine silicate and the guanidine salt is preferably guanidine phosphate.
As mentioned, microencapsulated melamine is also suitable according to the invention.
The fireproof coating forming an insulating layer preferably contains from 5 to 30 parts by weight of a film-forming binder, from 15 to 50 parts by weight of a substance forming a foam layer, from 5 to 25 parts by weight of a carbon-forming substance, from 5 to 50 parts by weight of the melamine salt and/or of the guanidine salt and from 10 to 50 parts by weight of conventional assistants and additives.
The fireproof coating forming an insulating layer particularly preferably contains from 10 to 20 parts by weight of a film-forming binder, from 25 to 40 parts by weight of a substance forming a foam layer, from 7 to 15 parts by weight of a carbon-forming substance, from 7 to 40 parts by weight of the melamine salt and/or of the guanidine salt and -from 20 to 40 parts by weight of conventional assistants and additives.
The fireproof coating forming an insulating layer 5 preferably contains, as film-forming binders, homopolymers based on vinyl acetate, copolymers based on vinyl acetate, ethylene and vinyl chloride, copolymers based on vinyl acetate and the vinyl ester of a long-chain, branched carboxylic acid, copolymers based on vinyl acetate and di-n-butyl maleate, copolymers based on vinyl acetate and acrylic esters, copolymers based on styrene and acrylic esters and/or copolymers based on acrylic esters, vinyltoluene/acrylate copolymers, styrene/acrylate polymers.
The fireproof coating forming an insulating layer preferably contains, as foam-forming substances, ammonium salts of phosphoric acids and/or poly-phosphoric acids.
The fireproof coating forming an insulating layer preferably contains carbohydrates as carbon-forming substances.
Numerous intumescent formulations are disclosed in "Fire Retardants Formulations Handbook" (Author;
Vijay Mohan Bhatnagar, 1972).
DE 42 18 184 Al describes an aqueous binder mixture comprising an aqueous solution and/or dispersion of a combination of a) at least one NCO prepolymer which is soluble and/or dispersible in water in the presence of component b) and has urethane groups and blocked isocyanate groups and b) a polyamine component comprising at least one (cyclo)aliphatic polyamine having at least two primary and/or secondary amino groups.
Finally, DE 43 43 668 describes expandable, flame-retardant coating materials comprising at least from 4 to 25% by weight of a film-forming binder, from 10 to 4% by weight of ammonium polyphosphate, from 8 to 40% by weight of at least one substance which carbonizes under the action of heat, from 6 to 25% by weight of a blowing agent, from 0 to 5% by weight of a dispersant, from 0 to 25% by weight of fillers.
The disadvantage of the abovementioned fireproof coating is in general that they are halogen-containing or do not have.a sufficiently wide range of uses.
Particularly in the case of formulations which contain melamine as blowing agent, it was found that these combinations release relatively large amounts of ammonia (NH3) at elevated temperature, and high atmospheric humidity, for example under tropical conditions.
The present invention provides fireproof coatings which form an insulating layer and which, even under climatic conditions as are encountered, for example, in the tropics, release only very small amounts of NH3 - even at high atmospheric humidity and at elevated temperature.
This is achieved by a fireproof coating of the type described at the outset which forms an insulating layer, which coating contains, as blowing agents, a melamine salt and/or guanidine salt and/or microencapsulated melamine.
3a In one aspect, the invention provides a composition for forming a fireproof coating that forms a foam layer on exposure to fire, which composition comprises:
a carbon-forming substance; a foam-forming substance; a film-forming binder; an assistant or additive; and a blowing agent selected from the group consisting of a melamine salt, a guanidine salt, a microencapsulated melamine and a combination thereof.
The melamine salts are preferably melamine phosphate, melamine cyanurate, melamine borate and melamine silicate and the guanidine salt is preferably guanidine phosphate.
As mentioned, microencapsulated melamine is also suitable according to the invention.
The fireproof coating forming an insulating layer preferably contains from 5 to 30 parts by weight of a film-forming binder, from 15 to 50 parts by weight of a substance forming a foam layer, from 5 to 25 parts by weight of a carbon-forming substance, from 5 to 50 parts by weight of the melamine salt and/or of the guanidine salt and from 10 to 50 parts by weight of conventional assistants and additives.
The fireproof coating forming an insulating layer particularly preferably contains from 10 to 20 parts by weight of a film-forming binder, from 25 to 40 parts by weight of a substance forming a foam layer, from 7 to 15 parts by weight of a carbon-forming substance, from 7 to 40 parts by weight of the melamine salt and/or of the guanidine salt and -from 20 to 40 parts by weight of conventional assistants and additives.
The fireproof coating forming an insulating layer 5 preferably contains, as film-forming binders, homopolymers based on vinyl acetate, copolymers based on vinyl acetate, ethylene and vinyl chloride, copolymers based on vinyl acetate and the vinyl ester of a long-chain, branched carboxylic acid, copolymers based on vinyl acetate and di-n-butyl maleate, copolymers based on vinyl acetate and acrylic esters, copolymers based on styrene and acrylic esters and/or copolymers based on acrylic esters, vinyltoluene/acrylate copolymers, styrene/acrylate polymers.
The fireproof coating forming an insulating layer preferably contains, as foam-forming substances, ammonium salts of phosphoric acids and/or poly-phosphoric acids.
The fireproof coating forming an insulating layer preferably contains carbohydrates as carbon-forming substances.
Preferablv used carbohydrates are pentaerythritol, dipentaerythritol, tripentaerythritol and/or poly-condensates of pentaerythritol.
The fireproof coating forming an insulating layer preferably contains, as assistants and additives, glass fibers, mineral f'-bers, kaolin, talc, alumina, aluminum hydroxide, magnesium hydroxide, precipitated silicas, silicates and/or powdered celluloses.
The fireproof coating forming an insulating layer and according to the invention is preferably halogen-free.
The fireproof coating forming an insulating layer and according to the invention preferably releases less than 550 ppm of NH3 on storage under high (atmospheric) humidity (up to 100% rel. humidity) and at elevated temperature (about 75 C).
The fireproof coating according to the invention (intumescent coating) is preferably used in the form of a brushable, sprayable or rollable coating material for protecting different surfaces, preferably steel, wood, electric cables and pipes.
In the examples below, intumescent coatings were prepared and were applied to standard steel sheets and their efficiency was determined. The insulating power was tested according to DIN 4102, Part 8 (1986) . The water resistance was tested by storing the coated standard steel sheets in a conditioning cabinet at 40 C
and 95% atmospheric humidity for 4 weeks before the test for the insulating power.
The following products are to be used in the examples:
Pliolite (solid) (Goodyear/France) This is a newtonic, thermoplastic resin based on vinyl-toluene/acrylate copolymers.
Hostaflam AP 462 (Clariant GmbH, Frankfurt am Main) This is a microencapsulated ammonium polyphosphate based on Hostaflam AP 422, which was prepared by the process of EP-B-0 180 795 and contains about 10% by weight of capsule material, comprising a cured melamine/formaldehyde resin.
Hostaflam AP 422 (Hoechst AG, Frankfurt am Main) is a free-flowing, pulverulent, sparingly water-soluble ammonium polyphosphate of the formula (NH4PO3) where n = 20 to 1000, in particular 500 to 1000. The fraction of particles having a particle size smaller than 45 pm is more than 99%.
Example 1 (comparison) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
38 parts by weight of Hostaflam AP 462 parts by weight of Pliolite (solid) 5 8 parts by weight of melamine 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
10 The fire test for the coated sheet according to DIN 4102 gave fire class F 30. After storage in the conditioning cabinet, the fire class was likewise F 30.
Example 2 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
38 parts by weight of Hostaflam AP 462 10 parts by weight of Pliolite (solid) 22 parts by weight of melamine phosphate 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
Example 3 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
38 parts by weight of Hostaflam AP 462 parts by weight of Pliolite (solid) 16 parts by weight of melamine cyanurate 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide 5 to 100 parts by weight: thickener, plasticizer, solvent.
Example 4 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
The fireproof coating forming an insulating layer preferably contains, as assistants and additives, glass fibers, mineral f'-bers, kaolin, talc, alumina, aluminum hydroxide, magnesium hydroxide, precipitated silicas, silicates and/or powdered celluloses.
The fireproof coating forming an insulating layer and according to the invention is preferably halogen-free.
The fireproof coating forming an insulating layer and according to the invention preferably releases less than 550 ppm of NH3 on storage under high (atmospheric) humidity (up to 100% rel. humidity) and at elevated temperature (about 75 C).
The fireproof coating according to the invention (intumescent coating) is preferably used in the form of a brushable, sprayable or rollable coating material for protecting different surfaces, preferably steel, wood, electric cables and pipes.
In the examples below, intumescent coatings were prepared and were applied to standard steel sheets and their efficiency was determined. The insulating power was tested according to DIN 4102, Part 8 (1986) . The water resistance was tested by storing the coated standard steel sheets in a conditioning cabinet at 40 C
and 95% atmospheric humidity for 4 weeks before the test for the insulating power.
The following products are to be used in the examples:
Pliolite (solid) (Goodyear/France) This is a newtonic, thermoplastic resin based on vinyl-toluene/acrylate copolymers.
Hostaflam AP 462 (Clariant GmbH, Frankfurt am Main) This is a microencapsulated ammonium polyphosphate based on Hostaflam AP 422, which was prepared by the process of EP-B-0 180 795 and contains about 10% by weight of capsule material, comprising a cured melamine/formaldehyde resin.
Hostaflam AP 422 (Hoechst AG, Frankfurt am Main) is a free-flowing, pulverulent, sparingly water-soluble ammonium polyphosphate of the formula (NH4PO3) where n = 20 to 1000, in particular 500 to 1000. The fraction of particles having a particle size smaller than 45 pm is more than 99%.
Example 1 (comparison) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
38 parts by weight of Hostaflam AP 462 parts by weight of Pliolite (solid) 5 8 parts by weight of melamine 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
10 The fire test for the coated sheet according to DIN 4102 gave fire class F 30. After storage in the conditioning cabinet, the fire class was likewise F 30.
Example 2 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
38 parts by weight of Hostaflam AP 462 10 parts by weight of Pliolite (solid) 22 parts by weight of melamine phosphate 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
Example 3 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
38 parts by weight of Hostaflam AP 462 parts by weight of Pliolite (solid) 16 parts by weight of melamine cyanurate 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide 5 to 100 parts by weight: thickener, plasticizer, solvent.
Example 4 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
10 38 parts by weight of Hostaflam AP 462 10 parts by weight of Pliolite (solid) 12 parts by weight of melamine borate 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
Example 5 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
38 parts by weight of Hostaflam AP 462 10 parts by weight of Pliolite (solid) 21 parts by weight of melamine silicate 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
Example 6 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
38 parts by weight of Hostaflam AP 462 parts by weight of Pliolite (solid) 5 10 parts by weight of guanidine phosphate 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
10 Example 7 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
27 parts by weight of Hostaflam AP 422 20 parts by weight of Mowilith DM 510 39 parts by weight of melamine phosphate 13 parts by weight of dipentaerythritol 5 parts by weight of titanium dioxide parts by weight of thickener, plasticizer, 20 water.
Example 8 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
27 parts by weight of Hostaflam AP 422 20 parts by weight of 0 Mowilith DM 510 18 parts by weight of microencapsulated melamine 13 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
Example 9 (invention) The following substances were mixed in succession and then applied appropriwtely to the sheet to be tested:
38 parts by weight of Hostaflam AP 462 parts by weight of Pliolite (solid) 10 8 parts by weight of microencapsulated melamine 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
All sheets to be tested, of Examples 2 to 9, achieved fire class F 30.
Measurement of the NH3 emission To determine the NH3 release, the dried sample sheets are placed in a closed glass system. This comprises a 500 ml glass bottle and a glass cover having 2 taps. To simulate the atmospheric humidity (about 100% rel.
humidity), a glass tray containing 10 ml of tap water is present in the glass system. The glass system is placed in a forced-draught drying oven at 75 C, with one tap closed. The second tap is likewise closed after 10 minutes in the drying oven. The residence time of the bottle in the drying oven from then on is 120 minutes. Thereafter, the bottle is removed from the drying oven and one tap is provided with a Drager tube by means of an adapter. Nitrogen is fed to the second tap at a rate of 5 1 per hour. The bottle is blown out for 30 minutes and the amounts of ammonia released are read directly on the Drager tube.
The results of the abovementioned neasurement are shown in Fig. 1, from which it is evident that the fireproof coating of Examples 2 to 7, forming an insulating layer and according to the invention, release far less (about 8 to 20 times less) NH3 than the fireproof coating according to the prior art (Example 1).
Example 5 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
38 parts by weight of Hostaflam AP 462 10 parts by weight of Pliolite (solid) 21 parts by weight of melamine silicate 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
Example 6 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
38 parts by weight of Hostaflam AP 462 parts by weight of Pliolite (solid) 5 10 parts by weight of guanidine phosphate 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
10 Example 7 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
27 parts by weight of Hostaflam AP 422 20 parts by weight of Mowilith DM 510 39 parts by weight of melamine phosphate 13 parts by weight of dipentaerythritol 5 parts by weight of titanium dioxide parts by weight of thickener, plasticizer, 20 water.
Example 8 (invention) The following substances were mixed in succession and then applied appropriately to the sheet to be tested:
27 parts by weight of Hostaflam AP 422 20 parts by weight of 0 Mowilith DM 510 18 parts by weight of microencapsulated melamine 13 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
Example 9 (invention) The following substances were mixed in succession and then applied appropriwtely to the sheet to be tested:
38 parts by weight of Hostaflam AP 462 parts by weight of Pliolite (solid) 10 8 parts by weight of microencapsulated melamine 8 parts by weight of dipentaerythritol 8 parts by weight of titanium dioxide to 100 parts by weight: thickener, plasticizer, solvent.
All sheets to be tested, of Examples 2 to 9, achieved fire class F 30.
Measurement of the NH3 emission To determine the NH3 release, the dried sample sheets are placed in a closed glass system. This comprises a 500 ml glass bottle and a glass cover having 2 taps. To simulate the atmospheric humidity (about 100% rel.
humidity), a glass tray containing 10 ml of tap water is present in the glass system. The glass system is placed in a forced-draught drying oven at 75 C, with one tap closed. The second tap is likewise closed after 10 minutes in the drying oven. The residence time of the bottle in the drying oven from then on is 120 minutes. Thereafter, the bottle is removed from the drying oven and one tap is provided with a Drager tube by means of an adapter. Nitrogen is fed to the second tap at a rate of 5 1 per hour. The bottle is blown out for 30 minutes and the amounts of ammonia released are read directly on the Drager tube.
The results of the abovementioned neasurement are shown in Fig. 1, from which it is evident that the fireproof coating of Examples 2 to 7, forming an insulating layer and according to the invention, release far less (about 8 to 20 times less) NH3 than the fireproof coating according to the prior art (Example 1).
Claims (15)
1. A composition for forming a fireproof coating that forms a foam layer on exposure to fire, which composition comprises:
a carbon-forming substance;
a foam-forming substance;
a film-forming binder;
an assistant or additive; and a blowing agent selected from the group consisting of a melamine salt, a guanidine salt, a microencapsulated melamine and a combination thereof.
a carbon-forming substance;
a foam-forming substance;
a film-forming binder;
an assistant or additive; and a blowing agent selected from the group consisting of a melamine salt, a guanidine salt, a microencapsulated melamine and a combination thereof.
2. A composition as claimed in claim 1, wherein the blowing agent is selected from the group consisting of a melamine salt, a guanidine salt and a combination thereof.
3. A composition as claimed in claim 2, wherein the blowing agent is selected from the group consisting of melamine phosphate, melamine cyanurate, melamine borate, melamine silicate, guanidine phosphate and a combination thereof.
4. A composition as claimed in any one of claims 1 to 3, which comprises:
from 5 to 30 parts by weight of the film-forming binder;
from 15 to 50 parts by weight of the foam-forming substance;
from 5 to 25 parts by weight of the carbon-forming substance;
from 5 to 50 parts by weight of the blowing agent; and from 10 to 50 parts by weight of the assistant or additive.
from 5 to 30 parts by weight of the film-forming binder;
from 15 to 50 parts by weight of the foam-forming substance;
from 5 to 25 parts by weight of the carbon-forming substance;
from 5 to 50 parts by weight of the blowing agent; and from 10 to 50 parts by weight of the assistant or additive.
5. A composition as claimed in claim 4, which comprises:
from 10 to 20 parts by weight of the film-forming binder;
from 25 to 40 parts by weight of the foam-forming substance;
from 7 to 15 parts by weight of the carbon-forming substance;
from 7 to 40 parts by weight of the blowing agent; and from 20 to 40 parts by weight of the assistant or additive.
from 10 to 20 parts by weight of the film-forming binder;
from 25 to 40 parts by weight of the foam-forming substance;
from 7 to 15 parts by weight of the carbon-forming substance;
from 7 to 40 parts by weight of the blowing agent; and from 20 to 40 parts by weight of the assistant or additive.
6. A composition as claimed in any one of claims 1 to 5, wherein the film-forming binder is selected from the group consisting of: a homopolymer based on vinyl acetate; a copolymer based on vinyl acetate, ethylene and vinyl chloride; a copolymer based on vinyl acetate and a vinyl ester of a long-chain, branched carboxylic acid; a copolymer based on vinyl acetate and di-n-butyl maleate; a copolymer based on vinyl acetate and an acrylic ester, a copolymer based on styrene and an acrylic ester, a copolymer based on an acrylic ester; a vinyltoluene/acrylate copolymer; a styrene/acrylate copolymer; and a combination thereof.
7. A composition as claimed in any one of claims 1 to 6, wherein the foam-forming substance is in the form of an ammonium salt of phosphoric acid, an ammonium salt of polyphosphoric acid or an ammonium salt of both phosphoric and polyphosphoric acids.
8. A composition as claimed in any one of claims 1 to 7, wherein the carbon-forming substance is a carbohydrate.
9. A composition as claimed in claim 8, wherein the carbohydrate is selected from the group consisting of pentaerythritol, dipentaerythritol, tripentaerythritol, a polycondensate of pentaerythritol and a combination thereof.
10. A composition as claimed in any one of claims 1 to 9, wherein the assistant or additive is selected from the group consisting of glass fibers, mineral fibers, kaolin, talc, alumina, aluminum hydroxide, magnesium hydroxide, precipitated silicas, silicates, powered celluloses and a combination thereof.
11. A composition as claimed in any one of claims 1 to 10, which is halogen-free.
12. A composition as claimed in any one of claims 1 to 11, which composition releases less than 550 ppm of NH3 when stored at up to 100% relative humidity and at a temperature up to 75°C.
13. A composition as claimed in any one of claims 1 to 12, which is in a brushable, sprayable or rollable form.
14. A substrate coated with a composition as claimed in any one of claims 1 to 13.
15. A fireproof coating obtained from the composition as claimed in any one of claims 1 to 13.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19739730 | 1997-09-11 | ||
| DE19739730.1 | 1997-09-11 | ||
| DE19835463.0 | 1998-08-06 | ||
| DE19835463A DE19835463A1 (en) | 1997-09-11 | 1998-08-06 | Tropical proof intumescent coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2246888A1 CA2246888A1 (en) | 1999-03-11 |
| CA2246888C true CA2246888C (en) | 2007-10-30 |
Family
ID=26039853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002246888A Expired - Fee Related CA2246888C (en) | 1997-09-11 | 1998-09-10 | Intumescent coating stable under tropical conditions |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6054513A (en) |
| EP (1) | EP0902062B1 (en) |
| JP (1) | JP4881498B2 (en) |
| AT (1) | ATE246716T1 (en) |
| AU (1) | AU733579B2 (en) |
| BR (1) | BR9803416A (en) |
| CA (1) | CA2246888C (en) |
| ES (1) | ES2205347T3 (en) |
| NZ (1) | NZ331720A (en) |
| TW (1) | TW442549B (en) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19919707A1 (en) | 1999-04-30 | 2000-11-02 | Clariant Gmbh | Fire protection coating for fiber materials |
| US7331400B2 (en) * | 2000-03-07 | 2008-02-19 | Avtec Industries, Inc. | Fire resistant and smoke suppressing coatings |
| DE10015889B4 (en) | 2000-03-30 | 2005-09-08 | Clariant Gmbh | Fire protection coating |
| DE60205264T2 (en) * | 2002-12-20 | 2006-06-01 | Eliokem | Polymer binder for swelling coating compositions |
| GB0314671D0 (en) * | 2003-06-24 | 2003-07-30 | W & J Leigh & Co | Intumescent coating compositions |
| US20040266294A1 (en) * | 2003-06-27 | 2004-12-30 | Rowen John B. | Reinforced flame-retardant and smoke-suppressive fabrics |
| US9028633B1 (en) | 2003-06-27 | 2015-05-12 | Avtec Industries, Inc. | Fire and smoke suppressing surface for substrates |
| US20050287894A1 (en) * | 2003-07-03 | 2005-12-29 | John Burns | Articles of enhanced flamability resistance |
| US20050285300A1 (en) * | 2003-10-17 | 2005-12-29 | George Hairston | Plastic articles of enhanced flame resistance and related method |
| US20050288421A1 (en) * | 2003-11-19 | 2005-12-29 | John Burns | Foams of enhanced flame resistance, articles formed therefrom and related method |
| US20050288422A1 (en) * | 2003-11-19 | 2005-12-29 | John Burns | Rubber compositions of enhanced flame resistance, articles formed therefrom and related method |
| EP1745493B1 (en) * | 2004-05-05 | 2017-12-27 | Union Carbide Chemicals & Plastics Technology LLC | Flame retardant plenum cable |
| US20060030227A1 (en) * | 2004-08-06 | 2006-02-09 | George Hairston | Intumescent flame retardent compositions |
| US20060046591A1 (en) * | 2004-08-31 | 2006-03-02 | George Hairston | Mattress covers of enhanced flammability resistance |
| DE602005026992D1 (en) * | 2004-11-15 | 2011-04-28 | Lubrizol Advanced Mat Inc | POLYMER COMPOSITION |
| GB0428009D0 (en) * | 2004-12-21 | 2005-01-26 | W & J Leigh & Co | Intumescent coating compositions |
| ITVI20050160A1 (en) * | 2005-05-27 | 2006-11-28 | Giampaolo Benussi | INTUMESCENT GASKET |
| AT501930A1 (en) * | 2005-06-01 | 2006-12-15 | Intumex Gmbh | DAMPING LAYER FOR METALLIC SUBSTRATE |
| TWI357436B (en) | 2007-08-31 | 2012-02-01 | Ind Tech Res Inst | Multilayer fire-resistant material |
| US20070149675A1 (en) | 2005-12-26 | 2007-06-28 | Industrial Technology Research Institute | Organic polymer/inorganic particles composite materials |
| US8330045B2 (en) | 2005-12-26 | 2012-12-11 | Industrial Technology Research Institute | Fire-resistant wire/cable |
| RU2467041C2 (en) * | 2010-08-24 | 2012-11-20 | Региональный некоммерческий фонд поддержки и развития Петербургской науки культуры и спорта | Method of obtaining fire-retardant intumescent composition |
| SK5976Y1 (en) * | 2011-02-24 | 2011-12-05 | Moles Technology A S | Fireproof paint coat matter |
| US8519024B2 (en) | 2011-10-11 | 2013-08-27 | United States Mineral Products | Intumescent fireproofing systems and methods |
| MX350305B (en) | 2013-03-15 | 2017-09-04 | B Coe William | Pavement repair system. |
| RU2603667C2 (en) * | 2015-04-27 | 2016-11-27 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный институт кино и телевидения" (СПбГУКиТ) | Method of producing fire-retardant intumescent composition |
| EP3674506B1 (en) | 2018-12-31 | 2024-04-10 | ISO-Chemie GmbH | Support element for supporting a window frame |
| EP3789462A1 (en) | 2019-09-09 | 2021-03-10 | Hilti Aktiengesellschaft | Weather-resistant coating |
| US20220186041A1 (en) * | 2020-12-15 | 2022-06-16 | TE Connectivity Services Gmbh | Coating for improved flammability performance in electrical components |
| CN112778864A (en) * | 2021-01-08 | 2021-05-11 | 武汉工程大学 | Halloysite-based water-based intumescent fire retardant coating and preparation method thereof |
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|---|---|---|---|---|
| DE295853C (en) * | ||||
| DE127394C (en) * | ||||
| GB1476238A (en) * | 1975-09-08 | 1977-06-10 | Magnesium Elektron Ltd | Intumescent coating compositions |
| ES444862A1 (en) * | 1976-02-03 | 1977-09-16 | Pellicer Carlos F | Fire-retarding epoxy resin material, method for the manufacture thereof and use thereof as coating composition |
| SE455200B (en) * | 1980-03-10 | 1988-06-27 | Odenwald Chemie Gmbh | FIREFIGHTING FOAM CREATING TRANSMISSION, LAYER ELEMENTS INCLUDING THIS AND PROCEDURE FOR MANUFACTURING THE LAYER ELEMENT |
| US4965296A (en) * | 1989-03-15 | 1990-10-23 | No Fire Engineering, Inc. | Intumescent fire-retardant and electrically-conductive coating material |
| US4879320A (en) * | 1989-03-15 | 1989-11-07 | Hastings Otis | Intumescent fire-retardant coating material |
| GB2246136A (en) * | 1990-07-18 | 1992-01-22 | Prometheus Developments Ltd | Intumescent coating compositions |
| US5356568A (en) * | 1990-10-29 | 1994-10-18 | Levine Harvey S | Intumescent heat- and fire-resistant composition and substrate coated therewith |
| US5225464A (en) * | 1992-04-02 | 1993-07-06 | Material Technologies & Sciences, Inc. | Intumescent coating and method of manufacture |
| DE4218184A1 (en) * | 1992-06-02 | 1993-12-09 | Bayer Ag | Aqueous binder mixture and its use |
| DE4343668A1 (en) * | 1993-12-21 | 1995-06-22 | Hoechst Ag | Inflatable, flame-retardant coating compounds |
-
1998
- 1998-08-28 ES ES98116370T patent/ES2205347T3/en not_active Expired - Lifetime
- 1998-08-28 AT AT98116370T patent/ATE246716T1/en not_active IP Right Cessation
- 1998-08-28 EP EP98116370A patent/EP0902062B1/en not_active Expired - Lifetime
- 1998-09-01 TW TW087114472A patent/TW442549B/en not_active IP Right Cessation
- 1998-09-04 NZ NZ331720A patent/NZ331720A/en unknown
- 1998-09-10 JP JP25713598A patent/JP4881498B2/en not_active Expired - Fee Related
- 1998-09-10 AU AU84178/98A patent/AU733579B2/en not_active Ceased
- 1998-09-10 US US09/150,922 patent/US6054513A/en not_active Expired - Lifetime
- 1998-09-10 BR BR9803416-2A patent/BR9803416A/en not_active Application Discontinuation
- 1998-09-10 CA CA002246888A patent/CA2246888C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ATE246716T1 (en) | 2003-08-15 |
| JP4881498B2 (en) | 2012-02-22 |
| JPH11151463A (en) | 1999-06-08 |
| US6054513A (en) | 2000-04-25 |
| EP0902062A1 (en) | 1999-03-17 |
| EP0902062B1 (en) | 2003-08-06 |
| AU733579B2 (en) | 2001-05-17 |
| AU8417898A (en) | 1999-03-25 |
| ES2205347T3 (en) | 2004-05-01 |
| CA2246888A1 (en) | 1999-03-11 |
| NZ331720A (en) | 2000-02-28 |
| TW442549B (en) | 2001-06-23 |
| BR9803416A (en) | 1999-12-28 |
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| EEER | Examination request | ||
| MKLA | Lapsed |