GB773125A - Production of extruded foams - Google Patents

Production of extruded foams

Info

Publication number
GB773125A
GB773125A GB26549/55A GB2654955A GB773125A GB 773125 A GB773125 A GB 773125A GB 26549/55 A GB26549/55 A GB 26549/55A GB 2654955 A GB2654955 A GB 2654955A GB 773125 A GB773125 A GB 773125A
Authority
GB
United Kingdom
Prior art keywords
pentane
per cent
specified
per
copolymer
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
GB26549/55A
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.)
Monsanto Chemicals Ltd
Monsanto Chemical Co
Original Assignee
Monsanto Chemicals Ltd
Monsanto 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 Monsanto Chemicals Ltd, Monsanto Chemical Co filed Critical Monsanto Chemicals Ltd
Publication of GB773125A publication Critical patent/GB773125A/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
    • C08J9/141—Hydrocarbons
    • 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
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene

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

A styrene polymer or copolymer in which pentane is soluble (butadiene-styrene copolymer specified) is blended with 1-10 per cent pentane and 2-3 per cent water and extruded at at least 250 DEG F. and a pressure less than 150 lb. per sq. inch. The pentane may be dissolved in the monomer mix which is then polymerized. A small amount, e.g. 0.1-0.5 per cent of a wetting agent may also be present. Specified wetting agents are soaps, long chain alkyl sulphates, alkaryl sulphonates, polyalkoxy alkylene ethers, amine salts and quaternary ammonium compounds. The blending may be carried out in rotary blenders or tumbling apparatus and the extrusion through slotted dies in continuous screw-extruders. The foamed material may be used as insulating material and in packaging.
GB26549/55A 1954-09-17 1955-09-16 Production of extruded foams Expired GB773125A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US773125XA 1954-09-17 1954-09-17

Publications (1)

Publication Number Publication Date
GB773125A true GB773125A (en) 1957-04-24

Family

ID=22137336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26549/55A Expired GB773125A (en) 1954-09-17 1955-09-16 Production of extruded foams

Country Status (1)

Country Link
GB (1) GB773125A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407151A (en) * 1964-06-18 1968-10-22 Shell Oil Co Production of expandable and cellular resin products
EP0450513A1 (en) * 1990-04-06 1991-10-09 The Dow Chemical Company Polymeric composition comprising transient foam control reagent
US5189072A (en) * 1990-04-06 1993-02-23 The Dow Chemical Company Polymeric composition comprising transient foam control agent
US5189071A (en) * 1992-04-06 1993-02-23 The Dow Chemical Company Polymeric composition comprising transient foam control agent

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407151A (en) * 1964-06-18 1968-10-22 Shell Oil Co Production of expandable and cellular resin products
EP0450513A1 (en) * 1990-04-06 1991-10-09 The Dow Chemical Company Polymeric composition comprising transient foam control reagent
US5189072A (en) * 1990-04-06 1993-02-23 The Dow Chemical Company Polymeric composition comprising transient foam control agent
US5189071A (en) * 1992-04-06 1993-02-23 The Dow Chemical Company Polymeric composition comprising transient foam control agent

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