FR2333819A1 - Chloroprene copolymers with reduced crystallisation speed - using dichloro-butadiene and chloro-butadiene comonomers - Google Patents
Chloroprene copolymers with reduced crystallisation speed - using dichloro-butadiene and chloro-butadiene comonomersInfo
- Publication number
- FR2333819A1 FR2333819A1 FR7636607A FR7636607A FR2333819A1 FR 2333819 A1 FR2333819 A1 FR 2333819A1 FR 7636607 A FR7636607 A FR 7636607A FR 7636607 A FR7636607 A FR 7636607A FR 2333819 A1 FR2333819 A1 FR 2333819A1
- Authority
- FR
- France
- Prior art keywords
- butadiene
- comonomers
- dichloro
- chloro
- crystallisation speed
- 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.)
- Withdrawn
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
- C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F236/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F236/14—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen
- C08F236/16—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen containing halogen
- C08F236/18—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen containing halogen containing chlorine
Landscapes
- 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)
- Polymerisation Methods In General (AREA)
Abstract
The polymers pref. comprises 69.3-98.8 (80.1-96.6) wt. % chloroprene (I), 20.1-1, (13.4-2.9) wt. % 2,3-dichloro-1,3-butadiene (II) and 10.6-0.2 (6.5-0.5) wt. % 1-chlorobutadiene (III). The polymers have a Mooney viscosity of 10-140, (30-120). (II)+(III) result in a much lower crystallisation speed of the polymer than when (II) and (III) are used on their own as comonomers. The low temp. stability of the polymer is improved without adverse effects on the mechanical props. of vulcanisates.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752554455 DE2554455A1 (en) | 1975-12-04 | 1975-12-04 | CHLOROPRENE POLYMERIZES |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2333819A1 true FR2333819A1 (en) | 1977-07-01 |
Family
ID=5963390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7636607A Withdrawn FR2333819A1 (en) | 1975-12-04 | 1976-12-03 | Chloroprene copolymers with reduced crystallisation speed - using dichloro-butadiene and chloro-butadiene comonomers |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5269489A (en) |
BE (1) | BE848977A (en) |
DE (1) | DE2554455A1 (en) |
FR (1) | FR2333819A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6048669B2 (en) * | 1977-05-27 | 1985-10-29 | 大阪瓦斯株式会社 | low noise valve |
US6103852A (en) * | 1995-12-01 | 2000-08-15 | Hokushin Corporation | Method for preparing amorphous polymer chains in elastomers |
US6008312A (en) * | 1995-12-01 | 1999-12-28 | Hokushin Corp | Method for producing millable polyurethanes and polyurethane elastomers |
-
1975
- 1975-12-04 DE DE19752554455 patent/DE2554455A1/en active Pending
-
1976
- 1976-12-02 JP JP14405876A patent/JPS5269489A/en active Pending
- 1976-12-02 BE BE172893A patent/BE848977A/en unknown
- 1976-12-03 FR FR7636607A patent/FR2333819A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE2554455A1 (en) | 1977-06-08 |
JPS5269489A (en) | 1977-06-09 |
BE848977A (en) | 1977-06-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |