GB889108A - Process for the chlorination of polyethylenes having a density of more than 0.93 - Google Patents
Process for the chlorination of polyethylenes having a density of more than 0.93Info
- Publication number
- GB889108A GB889108A GB1468158A GB1468158A GB889108A GB 889108 A GB889108 A GB 889108A GB 1468158 A GB1468158 A GB 1468158A GB 1468158 A GB1468158 A GB 1468158A GB 889108 A GB889108 A GB 889108A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyethylene
- water
- chlorination
- chloride
- metal compounds
- 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
Polyethylene of density more than 0,93 is chlorinated by subjecting to gaseous chlorine at above 50 DEG C. in the presence of water and an inert solvent for the polyethylene. The polyethylene is preferably prepared by the low pressure polymerization process, e.g. using as catalysts a combination of organo-metal compounds with reducible heavy metal compounds, and preferably has a molecular weight of 20,000 to 2,000,000. The chlorination may be conducted at 100 DEG to 150 DEG C. and at superatmospheric pressures, e.g. 1,5 to 7 atmospheres, and under the action of radiation, e.g. ultra-violet light. The solvent may be carbon tetrachloride, chloroform, methylene chloride or chlorobenzene. The water may contain an electrolyte, p e.g. calcium chloride, sodium chloride or sodium sulphate, an azo or peroxide catalyst and an emulsifier, e.g. alkylaryl sulphonates or alkyl sulphonates. The course of the chlorination may be followed by titration of the hydrochloric acid produced in the water. The chlorinated polyethylene produced may be incorporated into polyvinyl chloride.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0022985 | 1957-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB889108A true GB889108A (en) | 1962-02-07 |
Family
ID=7090670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1468158A Expired GB889108A (en) | 1957-05-07 | 1958-05-07 | Process for the chlorination of polyethylenes having a density of more than 0.93 |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT213620B (en) |
| CH (1) | CH375525A (en) |
| DE (1) | DE1070379B (en) |
| FR (1) | FR1195730A (en) |
| GB (1) | GB889108A (en) |
| IT (1) | IT596567A (en) |
| NL (2) | NL227589A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL267121A (en) * | 1960-07-16 | |||
| FR1378939A (en) * | 1963-09-20 | 1964-11-20 | Solvay | Resin compositions based on chlorinated polyvinyl chloride |
-
0
- NL NL99998D patent/NL99998C/xx active
- NL NL227589D patent/NL227589A/xx unknown
- DE DENDAT1070379D patent/DE1070379B/en active Pending
- IT IT596567D patent/IT596567A/it unknown
-
1958
- 1958-05-05 AT AT322158A patent/AT213620B/de active
- 1958-05-05 CH CH5913258A patent/CH375525A/en unknown
- 1958-05-07 FR FR1195730D patent/FR1195730A/en not_active Expired
- 1958-05-07 GB GB1468158A patent/GB889108A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AT213620B (en) | 1961-02-27 |
| IT596567A (en) | |
| DE1070379B (en) | 1959-12-03 |
| FR1195730A (en) | 1959-11-19 |
| NL227589A (en) | |
| NL99998C (en) | |
| CH375525A (en) | 1964-02-29 |
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