GB1018364A - Prevention of cold flow in elastomers - Google Patents

Prevention of cold flow in elastomers

Info

Publication number
GB1018364A
GB1018364A GB3292464A GB3292464A GB1018364A GB 1018364 A GB1018364 A GB 1018364A GB 3292464 A GB3292464 A GB 3292464A GB 3292464 A GB3292464 A GB 3292464A GB 1018364 A GB1018364 A GB 1018364A
Authority
GB
United Kingdom
Prior art keywords
polymer
peroxide
cold flow
octadiene
heating
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
GB3292464A
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.)
Phillips Petroleum Co
Original Assignee
Phillips Petroleum 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 Phillips Petroleum Co filed Critical Phillips Petroleum Co
Publication of GB1018364A publication Critical patent/GB1018364A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C19/00—Chemical modification of rubber
    • C08C19/10—Isomerisation; Cyclisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C19/00—Chemical modification of rubber

Abstract

The tendency of a rubbery polymer to cold flow, the polymer having been prepared with a lithium-based catalyst, is reduced by heating the polymer in the presence of from 0.075 to 1.75 millimols per 100 grams polymer of an organic peroxide or hydroperoxide; from 0.015 to 1.2 parts per 100 polymer of maleic acid or anhydride and 1 to 10 parts of zinc oxide, magnesium oxide or lead oxide may also be present. Long lists of peroxides include benzoyl peroxide, dicumyl peroxide, di-t-butyl peroxide and 4-chlorobenzoyl peroxide. Specified polymers are those of butadiene, isoprene, piperylene, 2-3-dimethyl butadiene, 1-3 octadiene, 4 - 5 - diethyl - 1 - 3 - octadiene and 2 - 5 - dimethyl - 1 - 3 - decadiene and copolymers thereof with vinyl-substituted aromatic hydrocarbons. The heating is preferably carried out at 250 DEG to 350 DEG F. for 1 to 120 minutes.
GB3292464A 1963-08-26 1964-08-12 Prevention of cold flow in elastomers Expired GB1018364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30461063A 1963-08-26 1963-08-26

Publications (1)

Publication Number Publication Date
GB1018364A true GB1018364A (en) 1966-01-26

Family

ID=23177221

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3292464A Expired GB1018364A (en) 1963-08-26 1964-08-12 Prevention of cold flow in elastomers

Country Status (2)

Country Link
DE (1) DE1246250B (en)
GB (1) GB1018364A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1720249C2 (en) * 1966-12-16 1984-03-22 Asahi Kasei Kogyo K.K., Osaka Process for the batch polymerization of 1,3-butadiene
WO2001046309A1 (en) * 1999-12-22 2001-06-28 Akzo Nobel N.V. Use of a unsaturated diacyl or acylcarbonate peroxides in cross-linking processes
KR100707569B1 (en) 1999-12-22 2007-04-13 아크조 노벨 엔.브이. Use of a unsaturated diacyl or acylcarbonate peroxides in cross-linking processes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1720249C2 (en) * 1966-12-16 1984-03-22 Asahi Kasei Kogyo K.K., Osaka Process for the batch polymerization of 1,3-butadiene
WO2001046309A1 (en) * 1999-12-22 2001-06-28 Akzo Nobel N.V. Use of a unsaturated diacyl or acylcarbonate peroxides in cross-linking processes
US6608146B2 (en) 1999-12-22 2003-08-19 Akzo Nobel Nv Use of unsaturated diacyl or acylcarbonate peroxides in cross-linking processes
KR100707569B1 (en) 1999-12-22 2007-04-13 아크조 노벨 엔.브이. Use of a unsaturated diacyl or acylcarbonate peroxides in cross-linking processes

Also Published As

Publication number Publication date
DE1246250B (en) 1967-08-03

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