GB1210626A - Improvements in or relating to extrusion of foams of olefin polymers - Google Patents

Improvements in or relating to extrusion of foams of olefin polymers

Info

Publication number
GB1210626A
GB1210626A GB883969A GB883969A GB1210626A GB 1210626 A GB1210626 A GB 1210626A GB 883969 A GB883969 A GB 883969A GB 883969 A GB883969 A GB 883969A GB 1210626 A GB1210626 A GB 1210626A
Authority
GB
United Kingdom
Prior art keywords
polymer
foamed
feb
copolymer
polymers
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
GB883969A
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.)
Haveg Industries Inc
Original Assignee
Haveg Industries Inc
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 Haveg Industries Inc filed Critical Haveg Industries Inc
Publication of GB1210626A publication Critical patent/GB1210626A/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
    • C08J9/0014—Use of organic additives
    • C08J9/0023—Use of organic additives containing oxygen
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (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

1,210,626. Foamed olefine polymers. HAVEG INDUSTRIES Inc. 18 Feb., 1969 [19 Feb., 1968 (2)], No. 8839/69. Headings C3C and C3P. A foamed olefine homopolymer or copolymer thereof with one or more other olefines or polar ethylenically unsaturated compounds is produced by extruding a melt of the polymer to which has been added a hydrocarbon and/or halogenated hydrocarbon blowing agent, which boils below the m.p. of the polymer and 0À1- 10% by wt. of a partial ester of a C 12-18 fatty acid and a polyol having 3-6 hydroxyl groups. The polymer may be low or high density polyethylene, stereoregular . polypropylene, or a copolymer of ethylene with propylene, vinyl acetate, ethyl acrylate or a salt of acrylic acid. The partial ester may be glycerol mono- or di-stearate, or sorbitan mono-, di-, or tri-oleate. The blowing agent may be a mixture of dichlorodifluoromethane and hexane or heptane. The polymers may also contain zinc stearate and calcium silicate as lubricants and nucleating agents.
GB883969A 1968-02-19 1969-02-18 Improvements in or relating to extrusion of foams of olefin polymers Expired GB1210626A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70666168A 1968-02-19 1968-02-19
US70661268A 1968-02-19 1968-02-19

Publications (1)

Publication Number Publication Date
GB1210626A true GB1210626A (en) 1970-10-28

Family

ID=27107710

Family Applications (1)

Application Number Title Priority Date Filing Date
GB883969A Expired GB1210626A (en) 1968-02-19 1969-02-18 Improvements in or relating to extrusion of foams of olefin polymers

Country Status (1)

Country Link
GB (1) GB1210626A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001791A3 (en) * 1977-10-21 1979-05-30 The Dow Chemical Company Expandable olefin polymer composition, expanded products made therefrom and method of making the expanded products
DE2853863A1 (en) * 1977-12-13 1979-06-21 Japan Styrene Paper Corp PROCESS FOR THE MANUFACTURING OF POLYOLE FOAM
EP0024324A1 (en) * 1979-08-03 1981-03-04 The Dow Chemical Company Foamable synthetic resin compositions that contain a glycol ester compound, and process for preparing resin foams
GB2122620A (en) * 1982-06-30 1984-01-18 Cosden Technology Process and apparatus for manufacturing flexible foamed articles
EP0152787A1 (en) * 1984-01-31 1985-08-28 The Dow Chemical Company Improved process for producing dimensionally stable polyolefin foams using environmentally acceptable blowing agent systems
EP0584276A1 (en) † 1991-04-30 1994-03-02 Dow Chemical Co Perforated plastic foam and process for making.
EP0846035A1 (en) * 1995-08-22 1998-06-10 Astro-Valcour, Incorporated Microcellular foam plank

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001791A3 (en) * 1977-10-21 1979-05-30 The Dow Chemical Company Expandable olefin polymer composition, expanded products made therefrom and method of making the expanded products
DE2853863A1 (en) * 1977-12-13 1979-06-21 Japan Styrene Paper Corp PROCESS FOR THE MANUFACTURING OF POLYOLE FOAM
US4217319A (en) 1977-12-13 1980-08-12 Japan Styrene Paper Corporation, Ltd. Process for producing polyolefin foams
EP0024324A1 (en) * 1979-08-03 1981-03-04 The Dow Chemical Company Foamable synthetic resin compositions that contain a glycol ester compound, and process for preparing resin foams
GB2122620A (en) * 1982-06-30 1984-01-18 Cosden Technology Process and apparatus for manufacturing flexible foamed articles
EP0152787A1 (en) * 1984-01-31 1985-08-28 The Dow Chemical Company Improved process for producing dimensionally stable polyolefin foams using environmentally acceptable blowing agent systems
EP0584276A1 (en) † 1991-04-30 1994-03-02 Dow Chemical Co Perforated plastic foam and process for making.
EP0584276B2 (en) † 1991-04-30 1999-08-25 The Dow Chemical Company Perforated plastic foam and process for making
EP0846035A1 (en) * 1995-08-22 1998-06-10 Astro-Valcour, Incorporated Microcellular foam plank
EP0846035A4 (en) * 1995-08-22 1998-12-09 Astro Valcour Inc Microcellular foam plank

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees
PLE Entries relating assignments, transmissions, licences in the register of patents
427C Application for amendment of specification now open to opposition (sect. 27/1949)
728A Order made restoring the patent (sect. 28/1977)
PCNP Patent ceased through non-payment of renewal fee