GB1378978A - Cross-linking of ethylene polymers - Google Patents

Cross-linking of ethylene polymers

Info

Publication number
GB1378978A
GB1378978A GB5410072A GB5410072A GB1378978A GB 1378978 A GB1378978 A GB 1378978A GB 5410072 A GB5410072 A GB 5410072A GB 5410072 A GB5410072 A GB 5410072A GB 1378978 A GB1378978 A GB 1378978A
Authority
GB
United Kingdom
Prior art keywords
cross
linking
ethylene polymers
polymers
ethylene
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
GB5410072A
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.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
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 SnamProgetti SpA filed Critical SnamProgetti SpA
Publication of GB1378978A publication Critical patent/GB1378978A/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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/28—Treatment by wave energy or particle radiation
    • 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
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Graft Or Block Polymers (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

1378978 Radiation cross-linking of ethylene polymers SNAM PROGETTI SpA 22 Nov 1972 [26 Nov 1971] 54100/72 Heading C3P Cross-linked ethylene polymers are obtained by irradiating with gamma rays a copolymer of ethylene and a minor amount (e.g. up to 5% by weight), of butadiene. The cross-linked products are useful as insulations for electric cables. Polymers with improved impact resistance and stress cracking resistance can be obtained by partial cross-linking.
GB5410072A 1971-11-26 1972-11-22 Cross-linking of ethylene polymers Expired GB1378978A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT3173371A IT946108B (en) 1971-11-26 1971-11-26 MODIFIED POLYETHYLENE WITH INCREASED CROSS-LINKING PERFORMANCE BY IRRADICULATION WITH GAMMA RAYS AND PROCEDURE FOR ITS PREPARATION

Publications (1)

Publication Number Publication Date
GB1378978A true GB1378978A (en) 1975-01-02

Family

ID=11234289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5410072A Expired GB1378978A (en) 1971-11-26 1972-11-22 Cross-linking of ethylene polymers

Country Status (15)

Country Link
JP (1) JPS5321034B2 (en)
BE (1) BE791711A (en)
CA (1) CA1036537A (en)
CH (1) CH556362A (en)
CS (1) CS159203B2 (en)
DD (1) DD103452A5 (en)
DE (1) DE2257111A1 (en)
ES (1) ES409253A1 (en)
FR (1) FR2160937B1 (en)
GB (1) GB1378978A (en)
IT (1) IT946108B (en)
LU (1) LU66526A1 (en)
NL (1) NL7215787A (en)
RO (1) RO62463A (en)
SU (1) SU673178A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55118767U (en) * 1979-02-16 1980-08-22
US4264490A (en) * 1979-05-11 1981-04-28 Radiation Dynamics, Inc. Composition of a polyethylene and isobutylene copolymer

Also Published As

Publication number Publication date
CS159203B2 (en) 1974-12-27
DE2257111A1 (en) 1973-05-30
FR2160937A1 (en) 1973-07-06
CH556362A (en) 1974-11-29
ES409253A1 (en) 1975-12-01
IT946108B (en) 1973-05-21
LU66526A1 (en) 1973-02-01
NL7215787A (en) 1973-05-29
CA1036537A (en) 1978-08-15
JPS4860746A (en) 1973-08-25
BE791711A (en) 1973-03-16
FR2160937B1 (en) 1975-03-28
RO62463A (en) 1977-10-15
SU673178A3 (en) 1979-07-05
JPS5321034B2 (en) 1978-06-30
DD103452A5 (en) 1974-01-20

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Legal Events

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