CA2457430A1 - Multimodal polyethylene material - Google Patents

Multimodal polyethylene material Download PDF

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Publication number
CA2457430A1
CA2457430A1 CA002457430A CA2457430A CA2457430A1 CA 2457430 A1 CA2457430 A1 CA 2457430A1 CA 002457430 A CA002457430 A CA 002457430A CA 2457430 A CA2457430 A CA 2457430A CA 2457430 A1 CA2457430 A1 CA 2457430A1
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CA
Canada
Prior art keywords
ccm
polyethylene resin
range
ethylene
molecular weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002457430A
Other languages
French (fr)
Other versions
CA2457430C (en
Inventor
Detlef Schramm
Wolfgang Quack
Julien Damen
Pak-Meng Cham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Global Technologies LLC
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Individual
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23228883&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2457430(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2457430A1 publication Critical patent/CA2457430A1/en
Application granted granted Critical
Publication of CA2457430C publication Critical patent/CA2457430C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2308/00—Chemical blending or stepwise polymerisation process with the same catalyst
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2314/00—Polymer mixtures characterised by way of preparation
    • C08L2314/06—Metallocene or single site catalysts

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  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

The present invention relates to a polyethylene resin having a multimodal molecular weight distribution, said resin being further characterized in that it has a density in the range of from about 0.925 g/ccm to about 0.950 g/ccm, a melt index (I2) In the range of from about 0.05 g/10 min to about 5 g/10 min, and in that it comprises at least one high molecular weight (HMW) ethylene interpolymer and at least a low molecular weight (LMW) ethylene polymer, and a composition comprising such resin. Also provided is a shaped article comprising said resin or composition, in particular a pipe.

Claims (10)

1. A polyethylene resin having a multimodal molecular weight distribution, said resin being further characterized in that it (a) has a density in the range of from 0.92 g/ccm to 0.950 g/ccm, and (b) has a melt index (I2) in the range of from 0.1 g/10 min to 5 g/10 min, and (c) comprises at least one high molecular weight (HMW) ethylene interpolymer and at least a low molecular weight (LMW) ethylene polymer, wherein the HMW
component comprises one or more ethylene interpolymers having a density in the range of from 0.910 g/ccm to 0.935 g/ccm, and a melt index of 1.0 g/10 min or lower, and (d) the LMW component comprises one or more ethylene polymers having a density in the range of from 0.945 g/ccm to 0.965 g/ccm and a melt index in the range of from 2.0 g/10 min to less than 200 g/10 min.
2. The polyethylene resin according to claim 1 which has a bimdoal molecular weight distribution and consists of one unimodal HMW ethylene interpolymer and one unimodal LMW ethylene polymer.
3. The polyethylene resin according to any of claims 1 to 2, wherein the LMW ethylene polymer is an ethylene interpolymer and has a density of 0.960 g/ccm or lower.
4. The polyethylene resin according to any of claims 1 to 3, wherein the HMW and/or the LMW ethylene interpolymer is a homogeneous, substantially linear interpolymer.
5. A composition comprising the multimodal polyethylene resin according to any of claims 1 to 4 and at least one other additional component.
6. The composition according to claim 5 wherein the at least one other additional component is selected from the group consisting of fillers and additives.
7. A shaped article comprising the multimodal polyethylene resin according to any of claims 1 to 5.
8. The shaped article according to claim 7 which is a pipe.
9. The pipe according to claim 8 which is operable at temperatures of above 40° C.
10. The pipe according to claim 8 which is a hot water pipe meeting the performance requirements defined in the ISO 10508 standard.
CA2457430A 2001-08-31 2002-08-28 Multimodal polyethylene material Expired - Lifetime CA2457430C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US31640101P 2001-08-31 2001-08-31
US60/316,401 2001-08-31
PCT/US2002/027503 WO2003020821A1 (en) 2001-08-31 2002-08-28 Multimodal polyethylene material

Publications (2)

Publication Number Publication Date
CA2457430A1 true CA2457430A1 (en) 2003-03-13
CA2457430C CA2457430C (en) 2011-10-18

Family

ID=23228883

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2457430A Expired - Lifetime CA2457430C (en) 2001-08-31 2002-08-28 Multimodal polyethylene material

Country Status (14)

Country Link
US (2) US7250473B2 (en)
EP (1) EP1425344B1 (en)
JP (3) JP2005501951A (en)
KR (2) KR100872219B1 (en)
CN (2) CN101230161B (en)
AR (1) AR037142A1 (en)
AT (1) ATE287924T1 (en)
BR (1) BR0212631B1 (en)
CA (1) CA2457430C (en)
DE (1) DE60202780T2 (en)
ES (1) ES2232767T3 (en)
MX (1) MXPA04001928A (en)
PL (1) PL203162B1 (en)
WO (1) WO2003020821A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018166771A1 (en) 2017-03-17 2018-09-20 Sabic Global Technologies B.V. Process for producing pipe by biaxial elongation

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