JPS5598204A - Production of maleinized styrene-conjugated diene block-copolymer - Google Patents
Production of maleinized styrene-conjugated diene block-copolymerInfo
- Publication number
- JPS5598204A JPS5598204A JP559579A JP559579A JPS5598204A JP S5598204 A JPS5598204 A JP S5598204A JP 559579 A JP559579 A JP 559579A JP 559579 A JP559579 A JP 559579A JP S5598204 A JPS5598204 A JP S5598204A
- Authority
- JP
- Japan
- Prior art keywords
- copolymer
- block
- conjugated diene
- styrene
- amt
- 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.)
- Pending
Links
Abstract
PURPOSE: To obtain the title copolymer in high yield for use in paint, etc. by a method wherein a specified styrene-conjugated diene block-copolymer is incorporated in an org. solvent at high concn. and then reacted with maleic anhydride in the presence of an azobis type radical polymn. catalyst.
CONSTITUTION: Styrene-conjugated diene block-copolymer having linear, radial or star structure of formula I, II or III (wherein A is polymer block consisting of a styrene cpd. and has block content more than 80%, B is polymer block consisting of a conjugated diene cpd.; n is 1W20) is incorporated in an amt. of at least 20wt% in an org. solvent such as xylene. An azobis type radical polymn. catalyst such as azobisisobutyronitrile in an amt. of about 0.2W6wt% based on the block-copolymer and maleic anhydride in an amt. of about 1W45% based on the block-copolymer are added to the block copolymer in the org. solvent. The mixt. is heated to about 40W 120°C to obtain the desired maleinized block-copolymer.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP559579A JPS5598204A (en) | 1979-01-23 | 1979-01-23 | Production of maleinized styrene-conjugated diene block-copolymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP559579A JPS5598204A (en) | 1979-01-23 | 1979-01-23 | Production of maleinized styrene-conjugated diene block-copolymer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5598204A true JPS5598204A (en) | 1980-07-26 |
Family
ID=11615577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP559579A Pending JPS5598204A (en) | 1979-01-23 | 1979-01-23 | Production of maleinized styrene-conjugated diene block-copolymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5598204A (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5350291A (en) * | 1976-10-18 | 1978-05-08 | Shell Int Research | Improver having modified dispersion properties and viscosity index |
JPS5483091A (en) * | 1977-12-14 | 1979-07-02 | Dainichi Seika Kogyo Kk | Preparation of hydrophilic polymer |
JPS54146889A (en) * | 1978-05-09 | 1979-11-16 | Kuraray Co Ltd | Production of block copolymer latex |
JPS5513720A (en) * | 1978-07-14 | 1980-01-30 | Kureha Chem Ind Co Ltd | Thermoplastic adhesive resin and its preparation |
JPS5580408A (en) * | 1978-12-11 | 1980-06-17 | Kureha Chem Ind Co Ltd | Preparation of thermoplastic adhesive resin |
-
1979
- 1979-01-23 JP JP559579A patent/JPS5598204A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5350291A (en) * | 1976-10-18 | 1978-05-08 | Shell Int Research | Improver having modified dispersion properties and viscosity index |
JPS5483091A (en) * | 1977-12-14 | 1979-07-02 | Dainichi Seika Kogyo Kk | Preparation of hydrophilic polymer |
JPS54146889A (en) * | 1978-05-09 | 1979-11-16 | Kuraray Co Ltd | Production of block copolymer latex |
JPS5513720A (en) * | 1978-07-14 | 1980-01-30 | Kureha Chem Ind Co Ltd | Thermoplastic adhesive resin and its preparation |
JPS5580408A (en) * | 1978-12-11 | 1980-06-17 | Kureha Chem Ind Co Ltd | Preparation of thermoplastic adhesive resin |
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