GB831358A - Catalyzed halogenation of polyolefines - Google Patents
Catalyzed halogenation of polyolefinesInfo
- 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
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.
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)
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 |
-
1957
- 1957-12-02 GB GB3751957A patent/GB831358A/en not_active Expired
- 1957-12-10 DE DE19571420326 patent/DE1420326B2/en active Pending
- 1957-12-18 FR FR1197716D patent/FR1197716A/en not_active Expired
Cited By (1)
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 |
---|---|
DE1420326B2 (en) | 1970-10-01 |
DE1420326A1 (en) | 1968-10-17 |
FR1197716A (en) | 1959-12-02 |
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