GB1400629A - Process for the dehydrochlorination of chlorinated polyolefins - Google Patents
Process for the dehydrochlorination of chlorinated polyolefinsInfo
- Publication number
- GB1400629A GB1400629A GB4889172A GB4889172A GB1400629A GB 1400629 A GB1400629 A GB 1400629A GB 4889172 A GB4889172 A GB 4889172A GB 4889172 A GB4889172 A GB 4889172A GB 1400629 A GB1400629 A GB 1400629A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chlorinated polyolefins
- dehydrochlorinated
- lewis acid
- chlorinated
- fluidized bed
- 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
- C08F8/26—Removing halogen atoms or halogen-containing groups from the molecule
Abstract
1400629 Dehydrochlorinated chlorinated polyolefins DOW CHEMICAL CO 24 Oct 1972 48891/72 Heading C3P Particulate dehydrochlorinated chlorinated polyolefins are prepared by mixing comminuted chlorinated polyolefins with a Lewis acid and an inert filler, maintaining the mixture in the form of a fluidized bed in the presence of an inert gas, heating the fluidized bed, cooling and recovering the dehydrochlorinated product. The chlorinated polyolefin may be obtained by melt, solution or aqueous dispersion chlorination of a polyethylene to a chlorine content of 36 to 48 weight per cent, and preferably contains at least 10 weight per cent of water when mixed with the Lewis acid. The Lewis acid may be zinc, aluminium, magnesium, ferric or cuprous chloride or a solution of zinc oxide in hydrochloric acid; the filler may be magnesium silicate, carbon black or titanium dioxide; and the inert gas may be oxygen, hydrogen chloride or nitrogen, Preferably an antioxidant, e.g. oxylated diphenylamine, dilauryl thiodipropionate, di-t.butyl-4-methylphenol or dihydro trimethylquinoline polymer, is also present.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4889172A GB1400629A (en) | 1972-10-24 | 1972-10-24 | Process for the dehydrochlorination of chlorinated polyolefins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4889172A GB1400629A (en) | 1972-10-24 | 1972-10-24 | Process for the dehydrochlorination of chlorinated polyolefins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1400629A true GB1400629A (en) | 1975-07-16 |
Family
ID=10450338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4889172A Expired GB1400629A (en) | 1972-10-24 | 1972-10-24 | Process for the dehydrochlorination of chlorinated polyolefins |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1400629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6200089B1 (en) * | 1998-03-26 | 2001-03-13 | Tcg Unitech Aktiengesellschaft | Coolant pump |
-
1972
- 1972-10-24 GB GB4889172A patent/GB1400629A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6200089B1 (en) * | 1998-03-26 | 2001-03-13 | Tcg Unitech Aktiengesellschaft | Coolant pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |