GB831358A - Catalyzed halogenation of polyolefines - Google Patents

Catalyzed halogenation of polyolefines

Info

Publication number
GB831358A
GB831358A GB3751957A GB3751957A GB831358A GB 831358 A GB831358 A GB 831358A GB 3751957 A GB3751957 A GB 3751957A GB 3751957 A GB3751957 A GB 3751957A GB 831358 A GB831358 A GB 831358A
Authority
GB
United Kingdom
Prior art keywords
specified
hydroperoxide
polyolefins
butylhydroperoxide
polyolefin
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
GB3751957A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical 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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB831358A publication Critical patent/GB831358A/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
    • C08F8/18—Introducing halogen atoms or halogen-containing groups
    • C08F8/20—Halogenation

Landscapes

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

Abstract

High molecular weight polyolefins are halogenated by forming an aqueous suspension of the polyolefin in a finely divided particulate form, incorporating in the aqueous suspension between 0.005 and 1.0%, based on the polyolefin, of a hydroperoxide catalyst of general formula XYZCOOH, where X, Y and Z are either hydrogen or an alkyl radical of one to eight carbon atoms, only one of X, Y and Z being hydrogen, and subjecting the suspension to the action of a halogenating agent. Specified polyolefins are polyethylene, polypropylene, polybutylene, olefin copolymers, polystyrene and polyvinyl toluene, specified hydroperoxides are tertiary - butylhydroperoxide (preferred), secondary - butylhydroperoxide, triethylmethyl hydroperoxide, 1 - methyl - cyclohexyl-1-hydroperoxide and pentamethylethylhydroperoxide while specified halogenating agents are chlorine, bromine and their mixtures. Low- or high-pressure type polyolefins may be used, and the preferred reaction temperature is between 80 DEG and 95 DEG C. Specifications 471,590, 481,515, 530,617, 533,362 and U.S.A. Specification 2,503,252 are referred to.
GB3751957A 1957-01-18 1957-12-02 Catalyzed halogenation of polyolefines Expired GB831358A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63503257A 1957-01-18 1957-01-18

Publications (1)

Publication Number Publication Date
GB831358A true GB831358A (en) 1960-03-30

Family

ID=24546151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3751957A Expired GB831358A (en) 1957-01-18 1957-12-02 Catalyzed halogenation of polyolefines

Country Status (3)

Country Link
DE (1) DE1420326B2 (en)
FR (1) FR1197716A (en)
GB (1) GB831358A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102675497A (en) * 2011-12-12 2012-09-19 河南科技大学 Method for preparing brominated polypropylene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102675497A (en) * 2011-12-12 2012-09-19 河南科技大学 Method for preparing brominated polypropylene

Also Published As

Publication number Publication date
FR1197716A (en) 1959-12-02
DE1420326A1 (en) 1968-10-17
DE1420326B2 (en) 1970-10-01

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