GB965030A - Process for the production of foamed cross-linked polymers - Google Patents

Process for the production of foamed cross-linked polymers

Info

Publication number
GB965030A
GB965030A GB3052862A GB3052862A GB965030A GB 965030 A GB965030 A GB 965030A GB 3052862 A GB3052862 A GB 3052862A GB 3052862 A GB3052862 A GB 3052862A GB 965030 A GB965030 A GB 965030A
Authority
GB
United Kingdom
Prior art keywords
ethylene
copolymers
propylene
polymer
foamed
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.)
Expired
Application number
GB3052862A
Inventor
Richard Ernest Skochdopole
Louis Charles Rubens
Giffin Denison Jones
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 Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB965030A publication Critical patent/GB965030A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/16—Ethene-propene or ethene-propene-diene copolymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Foamed cross-linked copolymers of ethylene and propylene, mixtures of copolymers of ethylene and propylene with polypropylene, polybutadienes, copolymers of ethylene and divinyloxyethane and copolymers of isobutylene and isopropenyl benzylchloride are prepared by foaming a composition of the polymer with a blowing agent and before substantial collapse of the foamed polymer has occurred, subjecting the foamed polymer to irradiation for 1-1800 seconds to provide a dosage of from 1 to 20 megarads. Suitable copolymers contain 25-65% ethylene and 75-35% propylene or at least 80% of ethylene/propylene copolymer and not more than 20% polypropylene. The blowing agent may be used in amount 0.05 to 5 gram moles per 100 grams of polymer and may be isobutane, propane or a fluorinated aliphatic compound or a mixture thereof.
GB3052862A 1962-08-01 1962-08-09 Process for the production of foamed cross-linked polymers Expired GB965030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0039532 1962-08-01

Publications (1)

Publication Number Publication Date
GB965030A true GB965030A (en) 1964-07-29

Family

ID=7044805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3052862A Expired GB965030A (en) 1962-08-01 1962-08-09 Process for the production of foamed cross-linked polymers

Country Status (2)

Country Link
DE (1) DE1469951A1 (en)
GB (1) GB965030A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122620A (en) * 1982-06-30 1984-01-18 Cosden Technology Process and apparatus for manufacturing flexible foamed articles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122620A (en) * 1982-06-30 1984-01-18 Cosden Technology Process and apparatus for manufacturing flexible foamed articles

Also Published As

Publication number Publication date
DE1469951A1 (en) 1969-03-27

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