US3249458A - Pressure responsive material - Google Patents

Pressure responsive material Download PDF

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US3249458A
US3249458A US243634A US24363462A US3249458A US 3249458 A US3249458 A US 3249458A US 243634 A US243634 A US 243634A US 24363462 A US24363462 A US 24363462A US 3249458 A US3249458 A US 3249458A
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adhesive
layer
pressure
light transmitting
pressure sensitive
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US243634A
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William D Cornell
Jack A Russell
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Brunswick Corp
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Brunswick Corp
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Priority to US243634A priority Critical patent/US3249458A/en
Priority to GB13726/64A priority patent/GB1055384A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • B41M5/132—Chemical colour-forming components; Additives or binders therefor

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  • Yet another object of this invention is to provide a score sheet material which includes a layer of pressure sensitive record material ,capable of producing a legible mark on its own surface responsive to pressure thereon, an adhesive capable of releasably or 'removably adhering to a platen surface and a layer isolating the adhesive from Y the platen surface in the absence of pressure and penetrable under pressure to permit impression on a platen surface upon application of pressure to the pressure sensitive record material.
  • FIG. 1 illustrates, in an enlarged section, an embodiment of pressure-responsive material of this invention in the form of a laminate structure including an uppermost layer or sheet of pressure-sensitive record material containing a multitude of fracturable ink capsules; adhering to the lower or backing surface of the pressure-sensitive record material is a layer of pressure-sensitive adhesive, and a layer of particulate nonadhesive material is shown on the exposed back surface of the adhesive layer.
  • the present invention provides a new and useful combination including a sheet of pressure sensitive record material, a deformable layer of adhesive backing on the sheet of pressure sensitive record material and a pressure penetrable normally continuous layer of material on the layer of adhesive backing.
  • the adhesive backing is so termed because it is applied to the back surface of the pressure sensitive record material, i.e., the surface which opposes the marking surface where pressure is to be applied to produce a legible mark.
  • the combination of this invention is useful to produce a legible relatively permanent record on a printed surface while concurrently producing a relatively temporary impression or image on a surface of a light transmitting platen.
  • the combination is especially useful as a score sheet for keeping score in the game of bowling.
  • Also provided by the present invention is a method for making the new and useful combination, which method generally includes the steps of applying the adhesive backing to the pressure sensitive record material and applying a pressure penetrable normally continuous layer of material over the layer of adhesive backing.
  • the pressure penetrable layer may be applied either before or after application of the adhesive material to the pressure sensitive record material.
  • the pressure sensitive record material may be any such material capable of producing a mark on its surface responsive to pressure applied to its surface. Such materials are well known in the art and are available commercially.
  • the pressure sensitive material may advantageously be of the encapsulated printing fluid type having pressure rupturable capsules of printing fluid contained within the material and more usually having an adsorbent material surrounding the capsules for absorption of the printing fluid upon rupture of the capsules.
  • the capsules printing fluids are usable, including for example, chemical reagents in separate adjacent randomly disposed caspules which react with each other or with an absorbent material, e.g., by impregnation, to produce a legible mark.
  • Such pressure sensitive sheets may be used singly or in manifold form, e.g., with the adhesive material as a backing on the last sheet of the manifold, in the present invention.
  • Suitable pressure sensitive record sheets are available'as NCR such as is marketed by the National Cash Register Company.
  • the adhesive material is the material which, of course, adheres to the self-reproducing paper.
  • the material is capable of releasably or removably adhering to a surface of a light transmitting platen and preferably a glass surface.
  • the adhesive may be a resin-based non-hardening adhesive having a soft rubber-like consistency such as the natural and synthetic rubber base adhesives.
  • suitable adhesives are the crude rubber resin-base adhesives as well as the synthetic polymer adhesives such as those in which the polymer predominates in polymers, including copolymers, tripolymers, etc, and graft polymers, graft copolymers, etc., and the like of such ethlenically unsaturated monomers as propylene, butylene including isobutylene, and styrene and other ethylenically unsaturated hydrocarbon monomers as well as polymers of the ethylenically unsaturated non-hydrocarbon monomers as will be apparent to those in the art.
  • Other resin base adhesives such as the polyurethane base adhesives are also usable. Such resin adhesives are often modified by plasticizers and/or prepared and marketed in carriers such as aromatic hydrocarbons. Many such adhesives are known and commercially available.
  • suitable adhesives are the Hycar type synthetic rubber base adhesives and the Permacel adhesives.
  • the Permacel adhesives include crude rubber base liquid adhesives as well as adhesives of the synthetic rubber base type predominating in plasticized polymers of propylene, butylene and styrene.
  • a particular acceptable adhesive may be obtained under the name Permacel BIZ-4469.
  • Adhesive products in other than liquid form may also be desired and may alternatively be used, for example, film or sheet form adhesives which are marketed on carriers such as a paper carrier having either one or both of its surfaces coated with the adhesives. Where one surface only is coated, the adhesive sheet may be applied by use of other adhesive materials as a backing on the pressure sensitive record material.
  • the sheet may be simply pressed against the back of the pressure sensitive material.
  • An acceptable adhesive impregnated on a paper carrier may be obtained under the name Permacel EZ-4551.
  • Such materials are normally marketed with a liner between layers such as a silicone coated liner to keep the layers from adhering.
  • the liner supplied with the adhesive sheet may advantageously be reusedif desired, as a liner between the multi-layer pressure responsive materials produced in accordance herewith.
  • the pressure penetrable layer may be any such layer which will not in itself adhere to the surface of the light transmitting platen but which at the same time will serve to isolate the adhesive layer from the platen surface in the absence of substantial applied pressure.
  • the adhesive material may be forced through the penetrable layer, i.e., by penetrating the layer, e.g., by separating particles in the layer, rupturing the layer, passing through openings in the layer, etc.
  • Such materials include pressure separable films such as pressure rupturable films and also include, as a further example, particulate compositions such as mica, talc, starch, flour and the like. The solid particulate mate- 'rials are more readily applied to the adhesive material and are therefore preferred.
  • Offset Fluid a dextrin gum in volatile solution
  • No-Offset Powder a dextrin starch
  • the No-Oflset liquids are applied in their usual manner, e.g., by spraying. During the spraying, and in contact with air, the offset fluid forms small globes which become deposited upon the surface sprayed. Normally the surface is then further exposed to air to permit complete drying of the globes.
  • the offset powders may be applied by dusting.
  • a multi-layer score sheet is prepared.
  • the pressure sensitive record material is an NCR sheet of the type employing encapsulated printing fluid and having an absorbent material adjacent the pressure rupturable capsule.
  • the deformable layer of adhesive backing is a layer including a paper carrier between two layers of adhesive coating on the paper carrier.
  • the adhesive is a synthetic rubber base adhesive in which the synthetic rubber predominates in plasticized polymers of propylene, butylene and styrene.
  • the pressure separable layer of material is a layer of air hardened globes of dextrin gum.
  • the multi-layer score sheet is prepared by applying a film-form adhesive such as Permacel EZ4551 to the back of a sheet of NCR pressure sensitive record material and thereafter spraying No-Offset liquid on the exposed adhesive surface in an amount suflicient to form a normally continuous layer thereon.
  • No-Otfset liquid layer is then permitted to air dry.
  • a multi-layer score sheet including a layer of NCR paper of the aforementioned example having a layer of crude rubber base adhesive as a backing thereon and a coating or layer of dextrin powder on the layer of adhesive.
  • This score sheet may conveniently be prepared by coating the sheet of NCR paper with a liquid crude rubber base adhesive in suitable solvent and thereafter dustthe pressure sensitive record paper.
  • the material is placed with the surface defined by the pressure separable layer of material upon a flat glass or other light transmitting material surface.
  • a hand stylus may then be usedto impress marks upon the pressure sensitive record material surface for making a relatively permanent legible mark thereon.
  • a type character or other mechanically operated marking implement is pressed upon Action in the top surface of the score sheet reproduces the character on the top surface without the use of ink.
  • the force of the printing means is simultaneously transmitted to the pressure sensitive adhesive.
  • the characteristics of the penetrable layer are such that when the marking implement is pressed upon the top surface and transmitted to thedeformable adhesive in the shape of the desired character the penetrable layer supports the adhesive away from the glass at all points except those of applied pressure.
  • the deformable adhesive forms an intimate bond with the glass surface, where the pressure is applied to produce an impression of the character on the glass surface by adherence of the adhesive material.
  • a multi-layer laminate material for concurrently producing a permanent marking which is legible at a pressure sensitive surface and a relatively temporary marking on a surface of a light transmitting platen which laminate material comprises a Web having a front surface for receiving printing pressure and an absorbent sheet containing a multitude of minute fracturable capsules containing printing fluid, a continuous layer of pressure sensitive adhesive strongly adhering to the back surface of said web, and a separate adhesive-permeable layer of particulate non-adhesive material adhering directly to and backing said adhesive layer in an amount suflicient to support said adhesive layer froma support surface under the weight of said web but insufficient to prevent passage of the adhesive through said permeable layer under marking force applied to said front surface, said adhesive having (1) proper tackiness to releasably adhere to the surface of the light transmitting platen under a force applied to the front surface suflicient to fracture the capsules, (2) greater adhesiveness to said paper sheet than to the prism face and (3) greater cohesiveness than the adhesiveness to the surface of the

Description

y 3, 1966 w. D. CORNELL ET AL 3,249,458
PRESSURE RESPONSIVE MATERIAL Filed Dec. 10, 1962 a 3% Q W W QEMEQE omOowm w mzwm n mmDmwmma //v vnvrms z @rrzef/ \fac Q .agaaae w Ewzwm mmnwwmma 50 %7aw Q66 Mar 20611 ATTORNEYS United States Patent 3,249,458 PRESSURE RESPGNSIVE MATERIAL William D. Cornell, Grand Haven, and Jack A. Russell, Muskegon, Mich., assignors to Brunswick Corporation, a corporation of Delaware Filed Dec. 10, 1962, Ser. No. 243,634 3 Claims. (Cl. 117-363) This invention relates to pressure responsive materials and more particularly relates to articles employing a combination of pressure responsive materials for concurrently producing a marking on a pressure sensitive surface and a relatively temporary marking on a surface of a light transmitting platen.
It is often desirable to makea relatively permanent record while projecting the record relatively temporarily on a screen or the like.. For example, in keeping score in the game of bowling, and especially in league or tournament bowling, it is desirable to produce a legible, relatively permanent record on a printable surface such as paper or the like, while projecting a relatively temporary image thereof to be more conveniently viewed during the game. A recently developed system makes use of temporary images or impressions produced on asurface of a light transmitting platen and projects the images as legible markings on a screen or the like. The present invention finds utility in such applications and particularly in bowling score keeping, using such a projection system.
It is a general object of this invention to provide a new and useful pressure responsive record material.
It is a further object of this invention to provide a new and useful material capable of producing a legible relatively permanent record on one surface thereof and concurrently producing a temporary image of therecord on a surface of a light transmitting platen.
It is another object of this invention to provide a new and useful combination including a printable surface, means producing a legible mark on the printable surface responsive to pressure and means for concurrently producing an impression of the mark on a surface of a light transmitting platen.
Yet another object of this invention is to provide a score sheet material which includes a layer of pressure sensitive record material ,capable of producing a legible mark on its own surface responsive to pressure thereon, an adhesive capable of releasably or 'removably adhering to a platen surface and a layer isolating the adhesive from Y the platen surface in the absence of pressure and penetrable under pressure to permit impression on a platen surface upon application of pressure to the pressure sensitive record material.
Other objects of the present invention may be apparent to those in the art from the detailed description to follow.
The objects of this invention have been attained by an embodiment thereof described in detail in the following specification. However, it is to be understood that this invention is susceptible of embodiment in many different forms and that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to the embodiment described. I
The figure of the drawing illustrates, in an enlarged section, an embodiment of pressure-responsive material of this invention in the form of a laminate structure including an uppermost layer or sheet of pressure-sensitive record material containing a multitude of fracturable ink capsules; adhering to the lower or backing surface of the pressure-sensitive record material is a layer of pressure-sensitive adhesive, and a layer of particulate nonadhesive material is shown on the exposed back surface of the adhesive layer.
, 3,249,453 Patented May 3, 1966 The present invention provides a new and useful combination including a sheet of pressure sensitive record material, a deformable layer of adhesive backing on the sheet of pressure sensitive record material and a pressure penetrable normally continuous layer of material on the layer of adhesive backing. The adhesive backing is so termed because it is applied to the back surface of the pressure sensitive record material, i.e., the surface which opposes the marking surface where pressure is to be applied to produce a legible mark. The combination of this invention is useful to produce a legible relatively permanent record on a printed surface while concurrently producing a relatively temporary impression or image on a surface of a light transmitting platen. The combination is especially useful as a score sheet for keeping score in the game of bowling.
Also provided by the present invention is a method for making the new and useful combination, which method generally includes the steps of applying the adhesive backing to the pressure sensitive record material and applying a pressure penetrable normally continuous layer of material over the layer of adhesive backing. The pressure penetrable layer may be applied either before or after application of the adhesive material to the pressure sensitive record material.
The pressure sensitive record material may be any such material capable of producing a mark on its surface responsive to pressure applied to its surface. Such materials are well known in the art and are available commercially. The pressure sensitive material may advantageously be of the encapsulated printing fluid type having pressure rupturable capsules of printing fluid contained within the material and more usually having an adsorbent material surrounding the capsules for absorption of the printing fluid upon rupture of the capsules. The capsules printing fluids are usable, including for example, chemical reagents in separate adjacent randomly disposed caspules which react with each other or with an absorbent material, e.g., by impregnation, to produce a legible mark. Such pressure sensitive sheets may be used singly or in manifold form, e.g., with the adhesive material as a backing on the last sheet of the manifold, in the present invention. Suitable pressure sensitive record sheets are available'as NCR such as is marketed by the National Cash Register Company.
The adhesive material is the material which, of course, adheres to the self-reproducing paper. The material is capable of releasably or removably adhering to a surface of a light transmitting platen and preferably a glass surface. Many such adhesive materials will be apparent to those in the art. Advantageously, the adhesive may be a resin-based non-hardening adhesive having a soft rubber-like consistency such as the natural and synthetic rubber base adhesives. Examples of suitable adhesives are the crude rubber resin-base adhesives as well as the synthetic polymer adhesives such as those in which the polymer predominates in polymers, including copolymers, tripolymers, etc, and graft polymers, graft copolymers, etc., and the like of such ethlenically unsaturated monomers as propylene, butylene including isobutylene, and styrene and other ethylenically unsaturated hydrocarbon monomers as well as polymers of the ethylenically unsaturated non-hydrocarbon monomers as will be apparent to those in the art. Other resin base adhesives such as the polyurethane base adhesives are also usable. Such resin adhesives are often modified by plasticizers and/or prepared and marketed in carriers such as aromatic hydrocarbons. Many such adhesives are known and commercially available.
More specific examples of suitable adhesives are the Hycar type synthetic rubber base adhesives and the Permacel adhesives. The Permacel adhesives, for example, include crude rubber base liquid adhesives as well as adhesives of the synthetic rubber base type predominating in plasticized polymers of propylene, butylene and styrene. A particular acceptable adhesive may be obtained under the name Permacel BIZ-4469. Adhesive products in other than liquid form may also be desired and may alternatively be used, for example, film or sheet form adhesives which are marketed on carriers such as a paper carrier having either one or both of its surfaces coated with the adhesives. Where one surface only is coated, the adhesive sheet may be applied by use of other adhesive materials as a backing on the pressure sensitive record material. Where both sides of the paper are coated with the adhesive, the sheet may be simply pressed against the back of the pressure sensitive material. An acceptable adhesive impregnated on a paper carrier may be obtained under the name Permacel EZ-4551. Such materials are normally marketed with a liner between layers such as a silicone coated liner to keep the layers from adhering. The liner supplied with the adhesive sheet may advantageously be reusedif desired, as a liner between the multi-layer pressure responsive materials produced in accordance herewith.
The pressure penetrable layer, including films, may be any such layer which will not in itself adhere to the surface of the light transmitting platen but which at the same time will serve to isolate the adhesive layer from the platen surface in the absence of substantial applied pressure. Under pressure, the adhesive material may be forced through the penetrable layer, i.e., by penetrating the layer, e.g., by separating particles in the layer, rupturing the layer, passing through openings in the layer, etc. Such materials include pressure separable films such as pressure rupturable films and also include, as a further example, particulate compositions such as mica, talc, starch, flour and the like. The solid particulate mate- 'rials are more readily applied to the adhesive material and are therefore preferred. Other usable solid particulate materials include the offset fluids and powders such as No-Offset Fluid (a dextrin gum in volatile solution) and No-Offset Powder a dextrin starch) which are marketed in various grades by Paasche Airbrush Company. The No-Oflset liquids are applied in their usual manner, e.g., by spraying. During the spraying, and in contact with air, the offset fluid forms small globes which become deposited upon the surface sprayed. Normally the surface is then further exposed to air to permit complete drying of the globes. The offset powders may be applied by dusting.
As a particular example of a pressure responsive material in accordance with this invention, a multi-layer score sheet is prepared. In the score sheet, the pressure sensitive record material is an NCR sheet of the type employing encapsulated printing fluid and having an absorbent material adjacent the pressure rupturable capsule. The deformable layer of adhesive backing is a layer including a paper carrier between two layers of adhesive coating on the paper carrier. The adhesive is a synthetic rubber base adhesive in which the synthetic rubber predominates in plasticized polymers of propylene, butylene and styrene. The pressure separable layer of material is a layer of air hardened globes of dextrin gum. The multi-layer score sheet is prepared by applying a film-form adhesive such as Permacel EZ4551 to the back of a sheet of NCR pressure sensitive record material and thereafter spraying No-Offset liquid on the exposed adhesive surface in an amount suflicient to form a normally continuous layer thereon. The No-Otfset liquid layer is then permitted to air dry.
As another example of a form of score sheet which may be produced in accordance herewith, there is pro-' vided a multi-layer score sheet including a layer of NCR paper of the aforementioned example having a layer of crude rubber base adhesive as a backing thereon and a coating or layer of dextrin powder on the layer of adhesive. This score sheet may conveniently be prepared by coating the sheet of NCR paper with a liquid crude rubber base adhesive in suitable solvent and thereafter dustthe pressure sensitive record paper.
ing No-Offset powder over the exposed adhesive surface.
In use .of the pressure responsive multi-layer material provided by this invention, e.g., as a score sheet, the material is placed with the surface defined by the pressure separable layer of material upon a flat glass or other light transmitting material surface. A hand stylus may then be usedto impress marks upon the pressure sensitive record material surface for making a relatively permanent legible mark thereon. Alternatively, a type character or other mechanically operated marking implement is pressed upon Action in the top surface of the score sheet reproduces the character on the top surface without the use of ink. The force of the printing means is simultaneously transmitted to the pressure sensitive adhesive. The characteristics of the penetrable layer are such that when the marking implement is pressed upon the top surface and transmitted to thedeformable adhesive in the shape of the desired character the penetrable layer supports the adhesive away from the glass at all points except those of applied pressure. The deformable adhesive forms an intimate bond with the glass surface, where the pressure is applied to produce an impression of the character on the glass surface by adherence of the adhesive material.
We claim:
1. A multi-layer laminate material for concurrently producing a permanent marking which is legible at a pressure sensitive surface and a relatively temporary marking on a surface of a light transmitting platen, which laminate material comprises a Web having a front surface for receiving printing pressure and an absorbent sheet containing a multitude of minute fracturable capsules containing printing fluid, a continuous layer of pressure sensitive adhesive strongly adhering to the back surface of said web, and a separate adhesive-permeable layer of particulate non-adhesive material adhering directly to and backing said adhesive layer in an amount suflicient to support said adhesive layer froma support surface under the weight of said web but insufficient to prevent passage of the adhesive through said permeable layer under marking force applied to said front surface, said adhesive having (1) proper tackiness to releasably adhere to the surface of the light transmitting platen under a force applied to the front surface suflicient to fracture the capsules, (2) greater adhesiveness to said paper sheet than to the prism face and (3) greater cohesiveness than the adhesiveness to the surface of the light transmitting platen.
2. The multi-layer laminate material of claim 1 wherein said layer of pressure sensitive adhesive adheres directly to the back surface of said absorbent sheet.
3. The multi-layer laminate material of claim 1 wherein said front surface is the front surface of said absorbent sheet.
References (Iited by the Examiner UNITED STATES PATENTS 2,181,864 12/1939 Bjorksten 28228 2,299,694 10/1942 Green 1l736.l 2,348,128 5/1944 Groak 11736.4 2,537,124 1/1951 Earle et a1 156338 (Other references on following page) UNITED STATES PATENTS FOREIGN PATENTS 2,671,734 3/1954 Rosenblum 117--36.4 640,311 12/1936 Germany. 2,729,575 1/1956 New-man 11736.4 2,750,315 6/1956 Tierney 161 167 ALEXANDER WYMAN, Primary Examiner. 2,894,925 7/1959 Morris 156334 5 2,971,876 2/1961 Phair 156334 'EARL BERGERT, Exammeh Schlmchfir et a1 Assistant Exanziner 2,986,477 5/1961 Eichel 117122

Claims (1)

1. A MULTI-LAYER LAMINATE MATERIAL FOR CONCURRENTLY PRODUCING A PERMANENT MARKING WHICH IS LEGIBLE AT A PRESSURE SENSITIVE SURFACE AND A RELATIVELY TEMPORARY MARKING ON A SURFACE OF A LIGHT TRANSMITTING PLATEN, WHICH LAMINATE MATERIAL COMPRISES A WEB HAVING A FRONT SURFACE FOR RECEIVING PRINTING PRESSURE AND AN ABSORBENT SHEET CONTAINING A MULTITUDE OF MINUTE FRACTURABLE CAPSULES CONTAINING PRINTING FLUID, A CONTINUOUS LAYER OF PRESSURE SENSITIVE ADHESIVE STRONGLY ADHERING TO THE BACK SURFACE OF SAID WEB, AND A SEPARATE ADHESIVE-PERMEABLE LAYER OF PARTICULATE NON-ADHESIVE MATERIAL ADHERING DIRECTLY TO AND BACKING SAID ADHESIVE LAYER IN AN AMOUNT SUFFICIENT TO SUPPORT SAID ADHESIVE LAYER FROM A SUPPORT SURFACE UNDER THE WEIGHT OF SAID WEB BUT INSUFFICIENT TO PREVENT PASSAGE OF THE ADHESIVE THROUGH SAID PERMEABLE LAYER UNDER MARKING FORCE APPLIED TO SAID FRONT SURFACE, SAID ADHESIVE HAVING (1) PROPER TACKINESS TO RELEASABLY ADHERE TO THE SURFACE OF THE LIGHT TRANSMITTING PLATEN UNDER A FORCE APPLIED TO THE FRONT SURFACE SUFFICIENT TO FRACTURE THE CAPSULES, (2) GREATER ADHESIVENESS TO SAID PAPER SHEET THAN TO THE PRISM FACE AND (3) GREATER COHESIVENESS THAN THE ADHESIVENESS TO THE SURFACE OF THE LIGHT TRANSMITTING PLATEN.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413168A (en) * 1967-05-03 1968-11-26 Minnesota Mining & Mfg Adhesive bonding method permitting precise positioning
US3565247A (en) * 1968-10-21 1971-02-23 Minnesota Mining & Mfg Pressure-sensitive adhesive tape product
US3647504A (en) * 1969-08-19 1972-03-07 Edward J Hayes Jr Pressure sensitive laminate
US3661673A (en) * 1969-05-01 1972-05-09 Woodall Industries Inc Method of making plastic laminate having high abrasion resistance
US3849170A (en) * 1971-04-01 1974-11-19 Standard Register Co Coating composition for optical projection
FR2614706A1 (en) * 1987-04-30 1988-11-04 Brother Ind Ltd RECORDING MEDIUM, AND IMAGE FORMING METHOD USING THE SAME
US5431452A (en) * 1993-08-23 1995-07-11 Wallace Computer Services, Inc. Hidden entry system and image-developing device therefor

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DE640311C (en) * 1934-07-26 1936-12-30 Erwin O Haberfeld Carbonless paper
US2181864A (en) * 1938-02-28 1939-12-05 Ditto Inc Hectograph blanket having a duplicating surface covered with a nonadhesive film
US2299694A (en) * 1940-03-09 1942-10-20 Ncr Co Manifolding material
US2348128A (en) * 1941-06-30 1944-05-02 Groak Josef Transfer copying materials
US2537124A (en) * 1946-01-23 1951-01-09 Union Bay State Co Inc Latex adhesive containing phenolphthalein and method of using the same
US2671734A (en) * 1949-03-25 1954-03-09 Rose Ribbon & Carbon Mfg Co In Nonsmudging transfer sheet
US2729575A (en) * 1948-11-09 1956-01-03 Method of making same
US2750315A (en) * 1949-04-29 1956-06-12 Permacel Tape Corp Pressure-sensitive adhesive strapping tape
US2894925A (en) * 1954-06-24 1959-07-14 B B Chem Co Polyethylene containing adhesive
US2971916A (en) * 1957-01-30 1961-02-14 Ncr Co Microscopic capsules containing magnetizable material
US2971876A (en) * 1956-12-04 1961-02-14 Bell Telephone Labor Inc Adhesive composition
US2986477A (en) * 1958-06-19 1961-05-30 Ncr Co Adhesive tape

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE640311C (en) * 1934-07-26 1936-12-30 Erwin O Haberfeld Carbonless paper
US2181864A (en) * 1938-02-28 1939-12-05 Ditto Inc Hectograph blanket having a duplicating surface covered with a nonadhesive film
US2299694A (en) * 1940-03-09 1942-10-20 Ncr Co Manifolding material
US2348128A (en) * 1941-06-30 1944-05-02 Groak Josef Transfer copying materials
US2537124A (en) * 1946-01-23 1951-01-09 Union Bay State Co Inc Latex adhesive containing phenolphthalein and method of using the same
US2729575A (en) * 1948-11-09 1956-01-03 Method of making same
US2671734A (en) * 1949-03-25 1954-03-09 Rose Ribbon & Carbon Mfg Co In Nonsmudging transfer sheet
US2750315A (en) * 1949-04-29 1956-06-12 Permacel Tape Corp Pressure-sensitive adhesive strapping tape
US2894925A (en) * 1954-06-24 1959-07-14 B B Chem Co Polyethylene containing adhesive
US2971876A (en) * 1956-12-04 1961-02-14 Bell Telephone Labor Inc Adhesive composition
US2971916A (en) * 1957-01-30 1961-02-14 Ncr Co Microscopic capsules containing magnetizable material
US2986477A (en) * 1958-06-19 1961-05-30 Ncr Co Adhesive tape

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413168A (en) * 1967-05-03 1968-11-26 Minnesota Mining & Mfg Adhesive bonding method permitting precise positioning
US3565247A (en) * 1968-10-21 1971-02-23 Minnesota Mining & Mfg Pressure-sensitive adhesive tape product
US3661673A (en) * 1969-05-01 1972-05-09 Woodall Industries Inc Method of making plastic laminate having high abrasion resistance
US3647504A (en) * 1969-08-19 1972-03-07 Edward J Hayes Jr Pressure sensitive laminate
US3849170A (en) * 1971-04-01 1974-11-19 Standard Register Co Coating composition for optical projection
FR2614706A1 (en) * 1987-04-30 1988-11-04 Brother Ind Ltd RECORDING MEDIUM, AND IMAGE FORMING METHOD USING THE SAME
US5431452A (en) * 1993-08-23 1995-07-11 Wallace Computer Services, Inc. Hidden entry system and image-developing device therefor
US5484169A (en) * 1993-08-23 1996-01-16 Wallace Computer Services, Inc. Hidden entry system and image-developing device therefor

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