GB1420297A - Copolymers - Google Patents

Copolymers

Info

Publication number
GB1420297A
GB1420297A GB1055574A GB1055574A GB1420297A GB 1420297 A GB1420297 A GB 1420297A GB 1055574 A GB1055574 A GB 1055574A GB 1055574 A GB1055574 A GB 1055574A GB 1420297 A GB1420297 A GB 1420297A
Authority
GB
United Kingdom
Prior art keywords
gel
gram
less
products
williams plasticity
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
GB1055574A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to GB1055574A priority Critical patent/GB1420297A/en
Publication of GB1420297A publication Critical patent/GB1420297A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08F8/00—Chemical modification by after-treatment
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/06—Sulfur
    • 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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • 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
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • 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
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages
    • 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
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/20—Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1420297 Olefin terpolymer elastomers E I DU PONT DE NEMOURS & CO 8 March 1974 10555/74 Addition to 1340112 Heading C3P The process of parent Specification 1,340,112 for preparing branched EPDM polymer having less than 30% gel, a Williams plasticity of 60 to 100 and an inherent viscosity of at least 2À2 at less than 30% gel by mixing an EPDM polymer having 0À1 to 2 gram-moles of carbon to carbon double bonds per kilogram of elastomer and a Williams plasticity of 20 to 60 with a promoter selected from 0À00125 to 0À00780 gram atoms of sulphur, an organic polysulphide yielding 0À00125 to 0À00780 gram atoms of sulphur, 0À0005 to 0À003 gram equivalents of an organic peroxide or hydroperoxide, and mixtures thereof, per 100 grams of elastomer and heating, is modified to provide products having a Williams plasticity of 30 to 60 and an inherent viscosity of at least 2À0 at less than 30% gel. The process may be effected batchwise or continuously, preferably in the absence of processing oils, and the products blended with conjugated diene elastomers, e.g. natural rubber, styrene/butadiene rubber, polyisoprene and neoprene. In examples ethylene/propylene/ hexadiene-1,4 copolymers are heated with tbutyl perbenzoate and the products covulcanized with natural rubber.
GB1055574A 1974-03-08 1974-03-08 Copolymers Expired GB1420297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1055574A GB1420297A (en) 1974-03-08 1974-03-08 Copolymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1055574A GB1420297A (en) 1974-03-08 1974-03-08 Copolymers

Publications (1)

Publication Number Publication Date
GB1420297A true GB1420297A (en) 1976-01-07

Family

ID=9970002

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1055574A Expired GB1420297A (en) 1974-03-08 1974-03-08 Copolymers

Country Status (1)

Country Link
GB (1) GB1420297A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1077222A1 (en) * 1999-08-17 2001-02-21 Bayer Ag Functionalised low unsaturation rubbers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1077222A1 (en) * 1999-08-17 2001-02-21 Bayer Ag Functionalised low unsaturation rubbers

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Legal Events

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