GB1308816A - Method for making hollow articles - Google Patents

Method for making hollow articles

Info

Publication number
GB1308816A
GB1308816A GB1308816DA GB1308816A GB 1308816 A GB1308816 A GB 1308816A GB 1308816D A GB1308816D A GB 1308816DA GB 1308816 A GB1308816 A GB 1308816A
Authority
GB
United Kingdom
Prior art keywords
copolymer
articles
ethylene
hollow
comonomer
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
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of GB1308816A publication Critical patent/GB1308816A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2022/00—Hollow articles

Abstract

1308816 Hollow ethylene copolymer articles IMPERIAL CHEMICAL INDUSTRIES Ltd 12 Oct 1971 [5 Nov 1970] 52709/70 Heading B5A Hollow articles are formed from a free-flowing composition comprising (a) a copolymer of ethylene with an ethylenically unsaturated comonomer which is a fatty acid and/or ester of 3-8 carbon atoms (b) a cross-linking agent and (c) a foaming agent by rotational moulding above the softening point of the copolymer and cooling to solidify it. The comonomer may be vinyl acetate, comprising 15-28% by wt. of the copolymer. The composition may also include talc, chalk, e.g. whiting, clay, silica, dolomite, titania, barium sulphate or carbon black as filler and a tack resin to increase adhesiveness such as a glycerol or pentaerythritol ester of a hydrogenated wood resin. Powdered polythene powder may also be added.
GB1308816D 1970-11-05 1970-11-05 Method for making hollow articles Expired GB1308816A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5270970 1970-11-05

Publications (1)

Publication Number Publication Date
GB1308816A true GB1308816A (en) 1973-03-07

Family

ID=10464979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1308816D Expired GB1308816A (en) 1970-11-05 1970-11-05 Method for making hollow articles

Country Status (2)

Country Link
AU (1) AU3482971A (en)
GB (1) GB1308816A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2508929A (en) * 2012-12-17 2014-06-18 Matrix Polymers Ltd Cross-linkable polyethylene and conductive agent compositions for rotomoulding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2508929A (en) * 2012-12-17 2014-06-18 Matrix Polymers Ltd Cross-linkable polyethylene and conductive agent compositions for rotomoulding
GB2508929B (en) * 2012-12-17 2020-10-28 Matrix Polymers Ltd Composition and process for producing conducting articles by rotomoulding

Also Published As

Publication number Publication date
AU3482971A (en) 1973-05-03

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees