GB988846A - Processing of ethylene-propylene copolymer - Google Patents

Processing of ethylene-propylene copolymer

Info

Publication number
GB988846A
GB988846A GB4901/64A GB490164A GB988846A GB 988846 A GB988846 A GB 988846A GB 4901/64 A GB4901/64 A GB 4901/64A GB 490164 A GB490164 A GB 490164A GB 988846 A GB988846 A GB 988846A
Authority
GB
United Kingdom
Prior art keywords
ethylene
propylene copolymer
processing
deg
reduced
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
GB4901/64A
Inventor
Jackson Schell Boyer
Charles Edward Scott
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.)
Sunoco Inc
Original Assignee
Sunoco Inc
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 Sunoco Inc filed Critical Sunoco Inc
Priority to GB4901/64A priority Critical patent/GB988846A/en
Publication of GB988846A publication Critical patent/GB988846A/en
Application status is Expired legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/50Partial depolymerisation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00Chemical modification of a polymer
    • C08F2810/10Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00Chemical modification of a polymer
    • C08F2810/20Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently

Abstract

The Mooney viscosity of a compounded ethylene-propylene copolymer is reduced by a process which comprises masticating the copolymer with 0.1 to 1.0% by weight of an organic peroxide at a temperature of 250 DEG to 400 DEG F. and thereafter compounding the polymer with conventional additives such as carbon black and further peroxide. Carbon black may also be present in the first mastication stage. By this process the compounded Mooney is reduced from 100-180 to 70-100. Exemplified peroxides are dicumyl peroxide and cumene hydroperoxide.
GB4901/64A 1964-02-05 1964-02-05 Processing of ethylene-propylene copolymer Expired GB988846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4901/64A GB988846A (en) 1964-02-05 1964-02-05 Processing of ethylene-propylene copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4901/64A GB988846A (en) 1964-02-05 1964-02-05 Processing of ethylene-propylene copolymer

Publications (1)

Publication Number Publication Date
GB988846A true GB988846A (en) 1965-04-14

Family

ID=9786011

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4901/64A Expired GB988846A (en) 1964-02-05 1964-02-05 Processing of ethylene-propylene copolymer

Country Status (1)

Country Link
GB (1) GB988846A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519007A1 (en) * 1981-12-24 1983-07-01 Charbonnages Ste Chimique Modified copolymers of ethylene and at least one a-olefin and process for their preparation
EP1013673A1 (en) * 1998-12-22 2000-06-28 Enichem S.p.A. Process for reducing the molecular weight of copolymers and terpolymers of ethylene
EP1548060A1 (en) * 2003-12-22 2005-06-29 Polimeri Europa S.p.A. Elastomeric blends based on carbon black
EP1574523A1 (en) * 2004-03-09 2005-09-14 Tokai Rubber Industries, Ltd. Rubber product and method for manufacturing the same

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519007A1 (en) * 1981-12-24 1983-07-01 Charbonnages Ste Chimique Modified copolymers of ethylene and at least one a-olefin and process for their preparation
EP0083521A1 (en) * 1981-12-24 1983-07-13 Ecp-Enichem Polymeres France S.A. Modified copolymers of ethylene and at least one alpha-olefin, and process for their prepraration
US4486579A (en) * 1981-12-24 1984-12-04 Societe Chimique Des Charbonnages Modified copolymers of ethylene and α-olefins and a process for their preparation
EP1013673A1 (en) * 1998-12-22 2000-06-28 Enichem S.p.A. Process for reducing the molecular weight of copolymers and terpolymers of ethylene
US6211332B1 (en) 1998-12-22 2001-04-03 Enichem S.P.A. Process for reducing the molecular weight of copolymers and terpolymers of ethylene
EP1548060A1 (en) * 2003-12-22 2005-06-29 Polimeri Europa S.p.A. Elastomeric blends based on carbon black
JP2005187819A (en) * 2003-12-22 2005-07-14 Polimeri Europa Spa Carbon black-based elastomer mixture
US7482408B2 (en) 2003-12-22 2009-01-27 Polimeri Europa S.P.A. Elastomeric blends based on carbon black
EP1574523A1 (en) * 2004-03-09 2005-09-14 Tokai Rubber Industries, Ltd. Rubber product and method for manufacturing the same
US7598311B2 (en) 2004-03-09 2009-10-06 Tokai Rubber Industries, Ltd. Rubber product and method for manufacturing the same

Similar Documents

Publication Publication Date Title
GB1040408A (en) Blends of organosiloxane co-polymers
GB972229A (en) Compositions comprising graft copolymers
GB982777A (en) Improvements in or relating to cross-linking alpha-alkyl polymers with polysulfonazides and resulting product
GB1060267A (en) Rate controlled vulcanization of polyethylene
JPS5825340A (en) Production of partially crosslinked rubber/resin composition
GB835864A (en) Improved thermoplastic materials
GB553733A (en) Improved polymeric materials
GB940876A (en) Improvements relating to shaped articles
GB754587A (en) Improvements in the treatment of butyl rubber
GB876585A (en) Improvements in and relating to rubber
GB1462115A (en) Electrical jack
JPS6086135A (en) Rubber composition having improved steam resistance
GB940126A (en) Vulcanization of elastomer blends with sulphur and peroxides
GB849023A (en) Polypropylene-butyl rubber blends
GB1049664A (en) Graft copolymer compositions
GB992210A (en) Treatment of rubbery polymers
SE7502231A (en)
GB812248A (en) Improvements relating to setscrews
GB716916A (en) Improvements in or relating to oxidation-resistant elastomers
GB1352281A (en) Elstomers reinforced with fluorinated polymers
GB1048834A (en) Production of furnace carbon black
GB1332259A (en) Method for cross-linking copolymers of tetrafluoroethylene and propylene
GB973062A (en) N-substituted maleimides and vulcanizates
GB1139636A (en) Crosslinkable moulding materials from polybutene-1
GB1236079A (en) Process for vulcanising rubber