JPS6456713A - Production of block copolymer - Google Patents
Production of block copolymerInfo
- Publication number
- JPS6456713A JPS6456713A JP21271687A JP21271687A JPS6456713A JP S6456713 A JPS6456713 A JP S6456713A JP 21271687 A JP21271687 A JP 21271687A JP 21271687 A JP21271687 A JP 21271687A JP S6456713 A JPS6456713 A JP S6456713A
- Authority
- JP
- Japan
- Prior art keywords
- copolymer
- water
- solvent
- content
- vinyl aromatic
- 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.)
- Granted
Links
- 229920001400 block copolymer Polymers 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- 229920001577 copolymer Polymers 0.000 abstract 4
- 239000002904 solvent Substances 0.000 abstract 4
- -1 vinyl aromatic hydrocarbon Chemical class 0.000 abstract 3
- 229920002554 vinyl polymer Polymers 0.000 abstract 3
- 239000004215 Carbon black (E152) Substances 0.000 abstract 2
- 238000007334 copolymerization reaction Methods 0.000 abstract 2
- 150000001993 dienes Chemical class 0.000 abstract 2
- 229930195733 hydrocarbon Natural products 0.000 abstract 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract 2
- 239000003999 initiator Substances 0.000 abstract 2
- 239000002736 nonionic surfactant Substances 0.000 abstract 2
- 150000002900 organolithium compounds Chemical class 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 238000004031 devitrification Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 150000007522 mineralic acids Chemical class 0.000 abstract 1
- 150000007524 organic acids Chemical class 0.000 abstract 1
- 235000005985 organic acids Nutrition 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 abstract 1
Landscapes
- Graft Or Block Polymers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE:To obtain the titled copolymer of low Li content, outstanding in transparency and devitrification resistance, by copolymerization, in a hydrocarbon solvent, between a conjugated diene and vinyl aromatic hydrocarbon using an organolithium compound as the initiator followed by stripping the resultant product in the presence of a nonionic surfactant. CONSTITUTION:A copolymerization is carried out in a hydrogen solvent, between a conjugated diene and vinyl aromatic hydrocarbon using an organolithium compound as the initiator followed by adding at least one kind of terminator selected from water, alcohols, inorganic acids and organic acids and a stabilizer to a solution of the resulting block copolymer or hydrogenated product therefrom. Thence, a solution of the copolymer with a concentration of 10-60wt.% is subjected to steam stripping in the presence of 1-3,000ppm of a nonionic surfactant at temperatures higher than the boiling point of the hydrocarbon solvent or azeotropic temperature of said solvent plus water but <=120 deg.C to convert into a slurry where the crumb-like copolymer has been dispersed in water followed by dehydration to the water content of 1-30wt.% and then drying to the water content of <1wt.%, thus obtaining the objective copolymer with the Li residue of <=40ppm and the vinyl aromatic hydrocarbon content of 5-95wt.%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21271687A JPS6456713A (en) | 1987-08-28 | 1987-08-28 | Production of block copolymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21271687A JPS6456713A (en) | 1987-08-28 | 1987-08-28 | Production of block copolymer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6456713A true JPS6456713A (en) | 1989-03-03 |
| JPH0360844B2 JPH0360844B2 (en) | 1991-09-18 |
Family
ID=16627245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21271687A Granted JPS6456713A (en) | 1987-08-28 | 1987-08-28 | Production of block copolymer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6456713A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5171791A (en) * | 1989-03-13 | 1992-12-15 | The Dow Chemical Company | Anionic polymerization process |
| US5242961A (en) * | 1992-05-28 | 1993-09-07 | Shell Oil Company | Color prevention in titanium catalyzed hydrogenated diene polymers |
| JP2017008245A (en) * | 2015-06-24 | 2017-01-12 | 日本エラストマー株式会社 | Manufacturing method of purified polymer |
| JP2017119756A (en) * | 2015-12-28 | 2017-07-06 | 日本ゼオン株式会社 | Method for producing polymer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5089494A (en) * | 1973-12-13 | 1975-07-17 | ||
| JPS5137987A (en) * | 1974-09-27 | 1976-03-30 | Sumitomo Chemical Co | BUROTSUKUKYO JUGOTAIRYUSHINO SHUTOKUHOHO |
-
1987
- 1987-08-28 JP JP21271687A patent/JPS6456713A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5089494A (en) * | 1973-12-13 | 1975-07-17 | ||
| JPS5137987A (en) * | 1974-09-27 | 1976-03-30 | Sumitomo Chemical Co | BUROTSUKUKYO JUGOTAIRYUSHINO SHUTOKUHOHO |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5171791A (en) * | 1989-03-13 | 1992-12-15 | The Dow Chemical Company | Anionic polymerization process |
| US5242961A (en) * | 1992-05-28 | 1993-09-07 | Shell Oil Company | Color prevention in titanium catalyzed hydrogenated diene polymers |
| US5280058A (en) * | 1992-05-28 | 1994-01-18 | Shell Oil Company | Color prevention in titanium catalyzed hydrogenated diene polymers |
| US5280059A (en) * | 1992-05-28 | 1994-01-18 | Shell Oil Company | Color prevention in titanium catalyzed hydrogenated diene polymers |
| JP2017008245A (en) * | 2015-06-24 | 2017-01-12 | 日本エラストマー株式会社 | Manufacturing method of purified polymer |
| JP2017119756A (en) * | 2015-12-28 | 2017-07-06 | 日本ゼオン株式会社 | Method for producing polymer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0360844B2 (en) | 1991-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |