GB879963A - Process for sulphochlorination of solid ethylene polymers - Google Patents

Process for sulphochlorination of solid ethylene polymers

Info

Publication number
GB879963A
GB879963A GB33098/58A GB3309858A GB879963A GB 879963 A GB879963 A GB 879963A GB 33098/58 A GB33098/58 A GB 33098/58A GB 3309858 A GB3309858 A GB 3309858A GB 879963 A GB879963 A GB 879963A
Authority
GB
United Kingdom
Prior art keywords
catalyst
azo
activator
chlorination
actinic light
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
GB33098/58A
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.)
Solvay SA
Original Assignee
Solvay SA
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 Solvay SA filed Critical Solvay SA
Publication of GB879963A publication Critical patent/GB879963A/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
    • C08F8/34—Introducing sulfur atoms or sulfur-containing groups
    • C08F8/38—Sulfohalogenation

Abstract

Solid ethylene polymers are sulphochlorinated in one or more stages by means of sulphuryl chloride, actinic light, an activator for the photochemical sulpho-chlorination reaction and a chlorination catalyst, the polymer being dissolved or suspended in a chlorinated solvent. The ethylene polymer may be polyethylene of high density made by the low-pressure polymerization process, using, for example, a catalyst comprising a hexavalent chromium compound or tin tetrabutyl, titanium tetrachloride and aluminium chloride. The chlorination catalyst is of the free-radical type and may be benzoyl peroxide, lauroyl peroxide, t-butyl perbenzoate, cumene hydroperoxide, azo-di-isobutyronitrile or azo-bis-dimethylvaleronitrile. The actinic light is preferably rich in ultra-violet radiation and the activator is a cyclic organic base containing at least one atom of nitrogen in the nucleus, e.g. pyridine, quinoline, mercaptothiazoline or morpholine. Specifications 542,414, 815,234 and U.S.A. Specification 2,405,971 are referred to.
GB33098/58A 1957-10-19 1958-10-16 Process for sulphochlorination of solid ethylene polymers Expired GB879963A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE879963X 1957-10-19

Publications (1)

Publication Number Publication Date
GB879963A true GB879963A (en) 1961-10-11

Family

ID=3883175

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33098/58A Expired GB879963A (en) 1957-10-19 1958-10-16 Process for sulphochlorination of solid ethylene polymers

Country Status (3)

Country Link
BE (1) BE561764A (en)
FR (1) FR1212423A (en)
GB (1) GB879963A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127028A (en) * 1982-07-21 1984-04-04 Toyo Soda Mfg Co Ltd Cold-proof chlorosulfonated polyethylene
GB2127833A (en) * 1982-08-18 1984-04-18 Toyo Soda Mfg Co Ltd Chlorosulfonated polyethylene

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184501B (en) * 1959-05-09 1964-12-31 Huels Chemische Werke Ag Process for the chlorination or sulfochlorination of polyolefins

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127028A (en) * 1982-07-21 1984-04-04 Toyo Soda Mfg Co Ltd Cold-proof chlorosulfonated polyethylene
GB2127833A (en) * 1982-08-18 1984-04-18 Toyo Soda Mfg Co Ltd Chlorosulfonated polyethylene
US4663396A (en) * 1982-08-18 1987-05-05 Toyo Soda Manufacturing Co., Ltd. Method for producing chlorosulfonated polyethylene with controlling addition amount of sulfur of the chlorosulfonated polyethylene

Also Published As

Publication number Publication date
FR1212423A (en) 1960-03-23
BE561764A (en)

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