GB843209A - Conjunct chlorination procedure for polyolefines - Google Patents

Conjunct chlorination procedure for polyolefines

Info

Publication number
GB843209A
GB843209A GB30145/57A GB3014557A GB843209A GB 843209 A GB843209 A GB 843209A GB 30145/57 A GB30145/57 A GB 30145/57A GB 3014557 A GB3014557 A GB 3014557A GB 843209 A GB843209 A GB 843209A
Authority
GB
United Kingdom
Prior art keywords
polyolefin
solution
chlorine content
chlorination
chlorinating
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
GB30145/57A
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 GB843209A publication Critical patent/GB843209A/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

A polyolefin is chlorinated to a desired total combined chlorine content in two steps, one consisting of chlorination in suspension to derive a portion of its combined chlorine content, the other of chlorination in solution to derive the other portion of its combined chlorine content. The steps may be carried out in any order while specified polyolefins are those from ethylene, propylene or butylene which may be made by either the low or high pressure processes. The suspension chlorinating step may take place by suspending finely-divided polyolefin in an inert liquid, e.g. water to form a slurry which is agitated while being treated with chlorine at between room temperature and 5 degrees below the sintering temperature of the polyolefin preferably in the presence of a free-radical catalyst. The solution chlorinating step may take place by subjecting the polyolefin to the action of a chlorinating agent at a temperature at least that required for the solvent to dissolve 1 percent of the polyolefin and which is not in excess of that at which dehydrochlorination of the polymer occurs, in solution in a solvent which is inert to the chlorinating agent, e.g. per chloroethylene or carbon tetrachloride, and preferably using a free-radical catalyst. Specification 834,905 is referred to.
GB30145/57A 1956-10-22 1957-09-25 Conjunct chlorination procedure for polyolefines Expired GB843209A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US843209XA 1956-10-22 1956-10-22

Publications (1)

Publication Number Publication Date
GB843209A true GB843209A (en) 1960-08-04

Family

ID=22184210

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30145/57A Expired GB843209A (en) 1956-10-22 1957-09-25 Conjunct chlorination procedure for polyolefines

Country Status (3)

Country Link
DE (1) DE1061074B (en)
FR (1) FR1187031A (en)
GB (1) GB843209A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3282910A (en) * 1962-07-25 1966-11-01 Hoechst Ag Manufacture of chlorinated high-pressure polyethylenes
US4707522A (en) * 1986-05-05 1987-11-17 The Dow Chemical Company Low viscosity, semicrystalline chlorinated polyethylene resins and articles formed therefrom
US4751147A (en) * 1986-05-05 1988-06-14 The Dow Chemical Company Low viscosity, semicrystalline chlorinated polyethylene resins and articles formed therefrom

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180856A (en) * 1960-12-08 1965-04-27 Phillips Petroleum Co Halogenation of olefin polymers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3282910A (en) * 1962-07-25 1966-11-01 Hoechst Ag Manufacture of chlorinated high-pressure polyethylenes
US4707522A (en) * 1986-05-05 1987-11-17 The Dow Chemical Company Low viscosity, semicrystalline chlorinated polyethylene resins and articles formed therefrom
US4751147A (en) * 1986-05-05 1988-06-14 The Dow Chemical Company Low viscosity, semicrystalline chlorinated polyethylene resins and articles formed therefrom
WO1989000585A1 (en) * 1986-05-05 1989-01-26 The Dow Chemical Company Low viscosity, semicrystalline chlorinated polyethylene resins and articles formed therefrom

Also Published As

Publication number Publication date
DE1061074B (en) 1959-07-09
FR1187031A (en) 1959-09-04

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