JPS5483091A - Preparation of hydrophilic polymer - Google Patents
Preparation of hydrophilic polymerInfo
- Publication number
- JPS5483091A JPS5483091A JP14921777A JP14921777A JPS5483091A JP S5483091 A JPS5483091 A JP S5483091A JP 14921777 A JP14921777 A JP 14921777A JP 14921777 A JP14921777 A JP 14921777A JP S5483091 A JPS5483091 A JP S5483091A
- Authority
- JP
- Japan
- Prior art keywords
- copolymer
- segment
- hard segment
- ethylenic unsaturated
- group
- 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
Landscapes
- Lining And Supports For Tunnels (AREA)
- Sealing Material Composition (AREA)
- Graft Or Block Polymers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To prepare a hydrophilic polymer having excellent water-swellability, degree of swelling with water, and gel-storage stability, by introducing a hydrophilic group to the ethylenic unsaturated group in a polymer mainly cmposed of a specific block- or graft-copolymer.
CONSTITUTION: A hydrophilic group is introduced into an ethylenic unsaturated group in a copolymer mainly composed of a block- or graft-copolymer having a structure of (hard segment)-(unsaturated segment)-(hard segment) wherein the content of the unsaturated segment is 95W5 wt.% and its average molecular weight is ≥1000, and the content of the hard segment is 5W95 wt.% and its average molecular weight is ≥1000, by reacting the copolymer composition with an α, β- ethylenic unsaturated carboxylic acid (derivative) at 150W300°C in an inert solvent under inert gas pressure.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14921777A JPS5483091A (en) | 1977-12-14 | 1977-12-14 | Preparation of hydrophilic polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14921777A JPS5483091A (en) | 1977-12-14 | 1977-12-14 | Preparation of hydrophilic polymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5483091A true JPS5483091A (en) | 1979-07-02 |
JPS5748008B2 JPS5748008B2 (en) | 1982-10-13 |
Family
ID=15470401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14921777A Granted JPS5483091A (en) | 1977-12-14 | 1977-12-14 | Preparation of hydrophilic polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5483091A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5598204A (en) * | 1979-01-23 | 1980-07-26 | Denki Kagaku Kogyo Kk | Production of maleinized styrene-conjugated diene block-copolymer |
JPS5863291U (en) * | 1981-10-22 | 1983-04-28 | ショ−レジン株式会社 | Backfill injection hole plug for segment for shield construction |
WO2018207683A1 (en) * | 2017-05-11 | 2018-11-15 | 日本ゼオン株式会社 | Block copolymer composition obtained by modification treatment, method for producing same, modified block copolymer composition used for same, and method for producing said modified block copolymer composition |
WO2019216241A1 (en) * | 2018-05-07 | 2019-11-14 | 日本ゼオン株式会社 | Block copolymer composition having ionic group and film |
EP3677645A4 (en) * | 2017-08-31 | 2021-06-02 | Zeon Corporation | Multi-block copolymer composition obtained by modification treatment, and film |
Citations (1)
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 |
-
1977
- 1977-12-14 JP JP14921777A patent/JPS5483091A/en active Granted
Patent Citations (1)
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 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5598204A (en) * | 1979-01-23 | 1980-07-26 | Denki Kagaku Kogyo Kk | Production of maleinized styrene-conjugated diene block-copolymer |
JPS5863291U (en) * | 1981-10-22 | 1983-04-28 | ショ−レジン株式会社 | Backfill injection hole plug for segment for shield construction |
WO2018207683A1 (en) * | 2017-05-11 | 2018-11-15 | 日本ゼオン株式会社 | Block copolymer composition obtained by modification treatment, method for producing same, modified block copolymer composition used for same, and method for producing said modified block copolymer composition |
JPWO2018207683A1 (en) * | 2017-05-11 | 2020-05-07 | 日本ゼオン株式会社 | Block copolymer composition obtained by modification treatment and method for producing the same, and modified block copolymer composition used therefor and method for producing the same |
US11466150B2 (en) | 2017-05-11 | 2022-10-11 | Zeon Corporation | Block copolymer composition obtained by modification treatment, method for producing same, modified block copolymer composition used for same, and method for producing said modified block copolymer composition |
EP3677645A4 (en) * | 2017-08-31 | 2021-06-02 | Zeon Corporation | Multi-block copolymer composition obtained by modification treatment, and film |
US11492452B2 (en) | 2017-08-31 | 2022-11-08 | Zeon Corporation | Multi-block copolymer composition obtained by modification treatment, and film |
WO2019216241A1 (en) * | 2018-05-07 | 2019-11-14 | 日本ゼオン株式会社 | Block copolymer composition having ionic group and film |
JPWO2019216241A1 (en) * | 2018-05-07 | 2021-08-12 | 日本ゼオン株式会社 | Block copolymer compositions and films with ionic groups |
US11459417B2 (en) | 2018-05-07 | 2022-10-04 | Zeon Corporation | Block copolymer composition including ionic group, and film |
Also Published As
Publication number | Publication date |
---|---|
JPS5748008B2 (en) | 1982-10-13 |
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