GB1446183A - Solution diene elastomers by alkyl lithium catalysis - Google Patents
Solution diene elastomers by alkyl lithium catalysisInfo
- Publication number
- GB1446183A GB1446183A GB4143373A GB4143373A GB1446183A GB 1446183 A GB1446183 A GB 1446183A GB 4143373 A GB4143373 A GB 4143373A GB 4143373 A GB4143373 A GB 4143373A GB 1446183 A GB1446183 A GB 1446183A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aromatic hydrocarbon
- copolymer
- vinyl aromatic
- pseudorandom
- vinyl
- 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
- 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
- C08F236/10—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 with vinyl-aromatic monomers
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)
- Polymerization Catalysts (AREA)
Abstract
1446183 Anionic copolymerization; pseudorandom copolymers UNIROYAL Inc 4 Sept 1973 [14 Sept 1972] 41433/73 Heading C3P [Also in Division C2] A monomer mixture comprising a conjugated diene and a vinyl aromatic hydrocarbon is copolymerized by contact with a catalyst comprising (a) an organomonolithium compound and (b) a potassium phenolate complex of the formula where each R<SP>1</SP> is an alkyl group at least one of which has 8 to 26 carbon atoms, y is 1 to 3, Ar is an arylene radical containing one aromatic ring, and R<SP>11</SP> is hydrogen or hydrocarbyl, in a solvent which is a saturated aliphatic hydrocarbon or aromatic hydrocarbon which does not contain benzylic hydrogen atoms (compounds such as toluene acting as molecular weight regulators in this system). The complex (b) is obtainable by reaction of a phenol with potassium hydroxide or hydrocarbyloxide. The copolymer products may be random or "pseudorandom". In particular a pseudorandom copolymer is characterized by (i) containing 23 to 50% by weight of the vinyl aromatic hydrocarbon, (ii) having blocks of 3 or 4 units of the vinyl aromatic hydrocarbon interspersed throughout the copolymer chain, (iii) a vinyl (1,2-) content of 7 to 15%, and (iv) a Tg which is at least 10‹ C. lower than the Tg of a random copolymer having the same vinyl aromatic hydrocarbon content. In the examples, butadiene and styrene are copolymerized in heptane or benzene in the presence of (a) C 4 H 9 Li and (b) C 9 H 19 -C 6 H 4 -OK.HOC 4 H 9 or a polyisobutylene phenol-KOH reaction product.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28904272A | 1972-09-14 | 1972-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1446183A true GB1446183A (en) | 1976-08-18 |
Family
ID=23109780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4143373A Expired GB1446183A (en) | 1972-09-14 | 1973-09-04 | Solution diene elastomers by alkyl lithium catalysis |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS4948344B2 (en) |
| AR (1) | AR197159A1 (en) |
| AU (1) | AU476689B2 (en) |
| BE (1) | BE804716A (en) |
| BR (1) | BR7307036D0 (en) |
| CS (1) | CS171291B2 (en) |
| DE (1) | DE2345755A1 (en) |
| FR (1) | FR2200284B1 (en) |
| GB (1) | GB1446183A (en) |
| IE (1) | IE38237B1 (en) |
| IT (1) | IT999542B (en) |
| LU (1) | LU68409A1 (en) |
| NL (1) | NL173853C (en) |
| PL (1) | PL89413B1 (en) |
| RO (1) | RO63547A (en) |
| SU (1) | SU624577A3 (en) |
| ZA (1) | ZA735903B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4547560A (en) * | 1980-12-16 | 1985-10-15 | Asahi Kasei Kogyo Kabushiki Kaisha | Random styrene-butadiene copolymer rubber |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6055527B2 (en) * | 1976-12-03 | 1985-12-05 | ジェイエスアール株式会社 | Method for producing conjugated diene copolymer |
| JPS5515587U (en) * | 1978-07-17 | 1980-01-31 | ||
| US4277591A (en) * | 1979-11-20 | 1981-07-07 | Phillips Petroleum Company | Process for producing random copolymers of conjugated dienes and alpha-methylstyrene type monomers |
| JPS5836705A (en) * | 1981-08-27 | 1983-03-03 | Bridgestone Corp | Pneumatic tire with improved tread |
| JP6911385B2 (en) * | 2017-03-02 | 2021-07-28 | 横浜ゴム株式会社 | Rubber composition for tires and pneumatic tires |
| JP6907599B2 (en) * | 2017-03-02 | 2021-07-21 | 横浜ゴム株式会社 | Rubber composition for tires and pneumatic tires |
| JP6907597B2 (en) * | 2017-03-02 | 2021-07-21 | 横浜ゴム株式会社 | Rubber composition for studless tires and studless tires |
| JP6919233B2 (en) * | 2017-03-02 | 2021-08-18 | 横浜ゴム株式会社 | Rubber composition for tires and pneumatic tires |
| JP6907598B2 (en) * | 2017-03-02 | 2021-07-21 | 横浜ゴム株式会社 | Rubber composition for tires and pneumatic tires |
| CN109485791B (en) * | 2017-09-13 | 2021-10-19 | 中国石油化工股份有限公司 | Linear styrene-butadiene copolymer, process for producing the same, composition thereof, aromatic vinyl resin and process for producing the same |
-
1973
- 1973-08-28 ZA ZA735903A patent/ZA735903B/en unknown
- 1973-08-30 AU AU59829/73A patent/AU476689B2/en not_active Expired
- 1973-09-04 GB GB4143373A patent/GB1446183A/en not_active Expired
- 1973-09-04 IT IT69640/73A patent/IT999542B/en active
- 1973-09-05 AR AR249943A patent/AR197159A1/en active
- 1973-09-10 FR FR7332486A patent/FR2200284B1/fr not_active Expired
- 1973-09-11 BE BE135539A patent/BE804716A/en unknown
- 1973-09-11 IE IE1614/73A patent/IE38237B1/en unknown
- 1973-09-11 BR BR7036/73A patent/BR7307036D0/en unknown
- 1973-09-11 DE DE19732345755 patent/DE2345755A1/en active Pending
- 1973-09-12 LU LU68409A patent/LU68409A1/xx unknown
- 1973-09-13 NL NLAANVRAGE7312657,A patent/NL173853C/en not_active IP Right Cessation
- 1973-09-13 JP JP48103727A patent/JPS4948344B2/ja not_active Expired
- 1973-09-13 PL PL1973165190A patent/PL89413B1/pl unknown
- 1973-09-13 SU SU731961038A patent/SU624577A3/en active
- 1973-09-14 CS CS6375A patent/CS171291B2/cs unknown
- 1973-09-14 RO RO7300076074A patent/RO63547A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4547560A (en) * | 1980-12-16 | 1985-10-15 | Asahi Kasei Kogyo Kabushiki Kaisha | Random styrene-butadiene copolymer rubber |
Also Published As
| Publication number | Publication date |
|---|---|
| RO63547A (en) | 1978-08-15 |
| SU624577A3 (en) | 1978-09-15 |
| NL173853C (en) | 1984-03-16 |
| LU68409A1 (en) | 1975-05-21 |
| BE804716A (en) | 1974-03-11 |
| NL173853B (en) | 1983-10-17 |
| NL7312657A (en) | 1974-03-18 |
| AU476689B2 (en) | 1976-09-30 |
| JPS4948344B2 (en) | 1974-12-20 |
| DE2345755A1 (en) | 1974-04-04 |
| JPS4967986A (en) | 1974-07-02 |
| FR2200284B1 (en) | 1976-04-30 |
| BR7307036D0 (en) | 1974-07-18 |
| IT999542B (en) | 1976-03-10 |
| FR2200284A1 (en) | 1974-04-19 |
| AR197159A1 (en) | 1974-03-15 |
| ZA735903B (en) | 1974-07-31 |
| IE38237B1 (en) | 1978-02-01 |
| IE38237L (en) | 1974-03-14 |
| AU5982973A (en) | 1975-03-06 |
| PL89413B1 (en) | 1976-11-30 |
| CS171291B2 (en) | 1976-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |