GB1228922A - - Google Patents
Info
- Publication number
- GB1228922A GB1228922A GB1228922DA GB1228922A GB 1228922 A GB1228922 A GB 1228922A GB 1228922D A GB1228922D A GB 1228922DA GB 1228922 A GB1228922 A GB 1228922A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chlorine
- polyethylene
- aug
- solvents
- absence
- 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
1,228,922. Chlorinating polyethlene. BADISCHE ANILIN- & SODA-FABRIK A.G. 28 Aug., 1968 [29 Aug., 1967], No. 41126/68. Heading C3P. Polyethylene is chlorinated by the action of chlorine in the absence of solvents or suspension agents by treating a finely particled low pressure polyethylene having a molecular weight within the range from 300,000 to 3,000,000 with a mixture of chlorine and oxygen. Preferably the chlorine and oxygen are in a volume ratio of 1: 1 to 1: 5. The polyethylene may have an average particle diameter of from 400 to 5000 microns and a specific surface area of 20 to 1000 cm.<SP>2</SP>/g. In the example a low pressure polyethylene which has been prepared in the absence of solvents using a catalyst containing chromium (VI) oxide is treated with a mixture of chlorine and air.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB0094194 | 1967-08-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1228922A true GB1228922A (en) | 1971-04-21 |
Family
ID=6987406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1228922D Expired GB1228922A (en) | 1967-08-29 | 1968-08-28 |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT288016B (en) |
BE (1) | BE719944A (en) |
DE (1) | DE1720293A1 (en) |
FR (1) | FR1577837A (en) |
GB (1) | GB1228922A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4011379A (en) * | 1975-05-22 | 1977-03-08 | The Dow Chemical Company | Electrical insulation from lightly chlorinated, high bulk density olefin polymer |
US4029862A (en) * | 1975-06-25 | 1977-06-14 | The Dow Chemical Company | Olefin polymer chlorination products having improved handling properties and process for their preparation |
US4197386A (en) | 1977-02-16 | 1980-04-08 | Stamicarbon, B.V. | Process for chlorinating ethylene polymers |
-
1967
- 1967-08-29 DE DE19671720293 patent/DE1720293A1/en active Pending
-
1968
- 1968-08-26 BE BE719944D patent/BE719944A/xx unknown
- 1968-08-28 GB GB1228922D patent/GB1228922A/en not_active Expired
- 1968-08-29 FR FR1577837D patent/FR1577837A/fr not_active Expired
- 1968-08-29 AT AT839368A patent/AT288016B/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4011379A (en) * | 1975-05-22 | 1977-03-08 | The Dow Chemical Company | Electrical insulation from lightly chlorinated, high bulk density olefin polymer |
US4029862A (en) * | 1975-06-25 | 1977-06-14 | The Dow Chemical Company | Olefin polymer chlorination products having improved handling properties and process for their preparation |
US4197386A (en) | 1977-02-16 | 1980-04-08 | Stamicarbon, B.V. | Process for chlorinating ethylene polymers |
Also Published As
Publication number | Publication date |
---|---|
AT288016B (en) | 1971-02-25 |
BE719944A (en) | 1969-02-26 |
DE1720293A1 (en) | 1971-06-09 |
FR1577837A (en) | 1969-08-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |