GB1514500A - Manufacture of heat-recoverable articles - Google Patents

Manufacture of heat-recoverable articles

Info

Publication number
GB1514500A
GB1514500A GB50544/75A GB5054475A GB1514500A GB 1514500 A GB1514500 A GB 1514500A GB 50544/75 A GB50544/75 A GB 50544/75A GB 5054475 A GB5054475 A GB 5054475A GB 1514500 A GB1514500 A GB 1514500A
Authority
GB
United Kingdom
Prior art keywords
mixture
heat
ethylene
radical
polymer
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
GB50544/75A
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Priority to GB50544/75A priority Critical patent/GB1514500A/en
Publication of GB1514500A publication Critical patent/GB1514500A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/003—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F230/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal
    • C08F230/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal
    • C08F230/08—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon
    • C08F230/085—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon the monomer being a polymerisable silane, e.g. (meth)acryloyloxy trialkoxy silanes or vinyl trialkoxysilanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
    • C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • C08K5/541—Silicon-containing compounds containing oxygen
    • C08K5/5425—Silicon-containing compounds containing oxygen containing at least one C=C bond
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1514500 Heat-recoverable polymeric articles BICC LTD 10 Dec 1976 [10 Dec 1975] 50544/75 Heading B5A [Also in Division C3] Heat-recoverable articles, e.g. breeches pieces for electric cable joints, are formed from a semicrystalline ethylene polymer, which may be chlorinated, derived from either ethylene alone or from a mixture of monomers comprising at least 50 mole % ethylene and no more than 25 mole % of monomers other than ethylene and propylene, by (1) adding to the polymer a heat-decomposable free-radical generator in an amount which is not sufficient to cause crosslinking by itself, and a silane of formula SiBY 2 R<SP>1</SP> in which R is a monovalent olefinically unsaturated hydrocarbon or hydrocarbonoxyl radical, each Y is a hydrolysable organic radical, and R<SP>1</SP> is R or Y or methyl, (2) moulding the mixture to a first condition, and before, during or after said moulding heating the mixture to a temperature high enough to decompose the free-radical generator thus producing free-radical sites in the polymer which react with the silane, (3) then (and only then) subjecting the moulded mixture to the combined action of a silanol condensation catalyst and water to effect cross-linking; and finally (4) deforming the article to a heatunstable condition. Step (2) may be effected by injection or blow moulding. Step (4) may be effected either by cold deformation below the recovery temperature of the article, or by heating it above the recovery temperature, applying deforming forces and then cooling below recovery temperature whilst maintaining the deforming forces.
GB50544/75A 1976-12-10 1976-12-10 Manufacture of heat-recoverable articles Expired GB1514500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB50544/75A GB1514500A (en) 1976-12-10 1976-12-10 Manufacture of heat-recoverable articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB50544/75A GB1514500A (en) 1976-12-10 1976-12-10 Manufacture of heat-recoverable articles

Publications (1)

Publication Number Publication Date
GB1514500A true GB1514500A (en) 1978-06-14

Family

ID=10456299

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50544/75A Expired GB1514500A (en) 1976-12-10 1976-12-10 Manufacture of heat-recoverable articles

Country Status (1)

Country Link
GB (1) GB1514500A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855490A1 (en) * 1975-12-06 1980-07-03 Kabel Metallwerke Ghh Elongated polymer sheath prodn. by low pressure process - using chlorinated polyethylene or blend grafted with silane and cured by moisture
EP0019990A1 (en) * 1979-05-11 1980-12-10 Radiation Dynamics Inc. Cross-linkable composition of a polyethylene and isobutylene copolymer, process for manufacturing cross-linked articles and articles from the composition
DE3001159A1 (en) * 1980-01-15 1981-07-16 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover SHRINK MOLDED PART FROM EXTRUDABLE FOAMED MATERIAL
EP0057000A1 (en) * 1981-01-26 1982-08-04 Wirsbo Pex Zweigniederlassung der Platzer Schwedenbau GmbH Method of deforming plastics pieces
FR2500840A1 (en) * 1981-03-02 1982-09-03 Kabel Metallwerke Ghh METHOD FOR MANUFACTURING RETRACTABLE ARTICLES
US4514533A (en) * 1983-09-27 1985-04-30 Canusa Coating Systems Limited Hindered phenolic norbornane-2,3-dicarboximides and stabilized compositions
US4520146A (en) * 1983-09-27 1985-05-28 Canusa Coating Systems Limited Chemical compounds and use
GB2172895A (en) * 1985-03-28 1986-10-01 Kabelmetal Electro Gmbh Shrink tubing for end closures of electric cables
US4687797A (en) * 1983-09-27 1987-08-18 Canusa Coating Systems Limited Halo phthalimides of phenolic-substituted hydrazides
EP0276367A2 (en) * 1987-01-24 1988-08-03 kabelmetal electro GmbH Method of manufacturing shrinkable articles

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855490A1 (en) * 1975-12-06 1980-07-03 Kabel Metallwerke Ghh Elongated polymer sheath prodn. by low pressure process - using chlorinated polyethylene or blend grafted with silane and cured by moisture
EP0019990A1 (en) * 1979-05-11 1980-12-10 Radiation Dynamics Inc. Cross-linkable composition of a polyethylene and isobutylene copolymer, process for manufacturing cross-linked articles and articles from the composition
DE3001159A1 (en) * 1980-01-15 1981-07-16 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover SHRINK MOLDED PART FROM EXTRUDABLE FOAMED MATERIAL
EP0057000A1 (en) * 1981-01-26 1982-08-04 Wirsbo Pex Zweigniederlassung der Platzer Schwedenbau GmbH Method of deforming plastics pieces
FR2500840A1 (en) * 1981-03-02 1982-09-03 Kabel Metallwerke Ghh METHOD FOR MANUFACTURING RETRACTABLE ARTICLES
GB2093760A (en) * 1981-03-02 1982-09-08 Kabel Metallwerke Ghh Heat-shrinkable articles
US4514533A (en) * 1983-09-27 1985-04-30 Canusa Coating Systems Limited Hindered phenolic norbornane-2,3-dicarboximides and stabilized compositions
US4520146A (en) * 1983-09-27 1985-05-28 Canusa Coating Systems Limited Chemical compounds and use
US4687797A (en) * 1983-09-27 1987-08-18 Canusa Coating Systems Limited Halo phthalimides of phenolic-substituted hydrazides
GB2172895A (en) * 1985-03-28 1986-10-01 Kabelmetal Electro Gmbh Shrink tubing for end closures of electric cables
EP0276367A2 (en) * 1987-01-24 1988-08-03 kabelmetal electro GmbH Method of manufacturing shrinkable articles
EP0276367A3 (en) * 1987-01-24 1989-07-26 kabelmetal electro GmbH Method of manufacturing shrinkable articles

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921210