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GB1200827A - A method of producing thick thermoplastic foamed shaped articles - Google Patents

A method of producing thick thermoplastic foamed shaped articles

Info

Publication number
GB1200827A
GB1200827A GB4681368A GB4681368A GB1200827A GB 1200827 A GB1200827 A GB 1200827A GB 4681368 A GB4681368 A GB 4681368A GB 4681368 A GB4681368 A GB 4681368A GB 1200827 A GB1200827 A GB 1200827A
Authority
GB
United Kingdom
Prior art keywords
mould
thermoplastic
composition
foamed
oct
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
GB4681368A
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.)
NISSEI IND
Furukawa Electric Co Ltd
Nissei Kogyo KK
Original Assignee
NISSEI IND
Furukawa Electric Co Ltd
Nissei Kogyo KK
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 NISSEI IND, Furukawa Electric Co Ltd, Nissei Kogyo KK filed Critical NISSEI IND
Publication of GB1200827A publication Critical patent/GB1200827A/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
    • C08J9/06—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 chemical blowing agent
    • C08J9/10—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 chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • General 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

1,200,827. Moulding foamed thermoplastic articles. FURUKAWA DENKI KOGYO K.K., and NISSEI KOGYO K.K. 2 Oct., 1968 [2 Oct., 1967], No. 46813/68. Heading B5A. A shaped foamed thermoplastic article is formed by foaming a thermoplastic composition in a mould pierced by a plurality of small holes while rotating the mould. The thermoplastics composition comprises a thermoplastic material and a blowing agent and is foamed by heating, the composition optionally containing a blowing agent or being subjected to ionizing radiation before foaming. The thermoplastic material is preferably a thermoplastic resin or a mixture thereof and may contain up to 50 wt. per cent of natural or synthetic rubber. It may contain fillers and flame retarding agents and the composition may be mixed in a blender or kneaded or pulverized to a powder, flakes or granules. The holes which are preferably 1-4 mm. in diameter may be located over the whole surface of the mould or may cover only certain areas, preferably remote from the axis of rotation. A gas permeable material e.g. paper or cloth may be applied to all or part of the inner surface of the mould. The mould may be rotated continuously or intermittently at 10-300 revolutions per hour and may be heated by hot air or steam. The article formed may be a pallet, surfboard, boat, drum or container. Many examples of suitable polymers, blowing agents, curing agents and fillers are given.
GB4681368A 1967-10-02 1968-10-02 A method of producing thick thermoplastic foamed shaped articles Expired GB1200827A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6374867 1967-10-02

Publications (1)

Publication Number Publication Date
GB1200827A true GB1200827A (en) 1970-08-05

Family

ID=13238319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4681368A Expired GB1200827A (en) 1967-10-02 1968-10-02 A method of producing thick thermoplastic foamed shaped articles

Country Status (2)

Country Link
DE (1) DE1800279A1 (en)
GB (1) GB1200827A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956234A (en) * 1987-01-28 1990-09-11 Industrias Salver, S.A. De C.V. Foamed PVC pneumatic ball
GB2229669A (en) * 1989-03-30 1990-10-03 Celestion Int Ltd Moulding reinforced hollow objects
GB2412108B (en) * 2004-03-19 2008-12-24 Pvaxx Res & Dev Ltd Load-carrying apparatus and methods of manufacture
EP2343245A1 (en) * 2004-03-19 2011-07-13 Pvaxx Research and Development Limited Load-carrying apparatus and methods of manufacture
US9138945B2 (en) 2005-04-26 2015-09-22 Paxxal Inc. Load carrying apparatus and method of manufacture

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2414526A1 (en) * 1974-03-26 1975-10-23 Centre Ind Res Ltd PROCESS FOR ROTARY FORMING OF POLYAETHYLENE
US4671753A (en) * 1985-08-19 1987-06-09 Payne Leroy Apparatus for molding

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956234A (en) * 1987-01-28 1990-09-11 Industrias Salver, S.A. De C.V. Foamed PVC pneumatic ball
GB2229669A (en) * 1989-03-30 1990-10-03 Celestion Int Ltd Moulding reinforced hollow objects
GB2229669B (en) * 1989-03-30 1993-04-21 Celestion Int Ltd Moulded objects
GB2412108B (en) * 2004-03-19 2008-12-24 Pvaxx Res & Dev Ltd Load-carrying apparatus and methods of manufacture
EP2343245A1 (en) * 2004-03-19 2011-07-13 Pvaxx Research and Development Limited Load-carrying apparatus and methods of manufacture
EP2345593A1 (en) * 2004-03-19 2011-07-20 Pvaxx Research and Development Limited Load-carrying apparatus and methods of manufacture
EP2354023A1 (en) * 2004-03-19 2011-08-10 Pvaxx Research and Development Limited Load-carrying apparatus and methods of manufature
US9138945B2 (en) 2005-04-26 2015-09-22 Paxxal Inc. Load carrying apparatus and method of manufacture

Also Published As

Publication number Publication date
DE1800279A1 (en) 1969-07-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee