JPS57205433A - Water-expandable rubber - Google Patents
Water-expandable rubberInfo
- Publication number
- JPS57205433A JPS57205433A JP8827981A JP8827981A JPS57205433A JP S57205433 A JPS57205433 A JP S57205433A JP 8827981 A JP8827981 A JP 8827981A JP 8827981 A JP8827981 A JP 8827981A JP S57205433 A JPS57205433 A JP S57205433A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- hydrophilic
- weight ratio
- block polymer
- styrene
- 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
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To provide a rubber material having excellent water-expandability and mechanical strength, by vulcanizing a mixture consisting of a solution polymerized styrene/butadiene rubber and a specified hydrophilic block polymer.
CONSTITUTION: A hydrophilic block polymer (wherein the weight ratio of a hydrophilic component to a lipophilic component is 80/20W50/50) obtd. by the random addition polymerization of ethylene oxide and propylene oxide in a weight ratio of 90/10W20/80 with liquid polybutadiene having a hydroxyl group at its terminal or a liquid styrene/butadiene copolymer having an MW of 500W 5000, is used. 10W50pts.wt.above hydrophilic polymer and a crosslinking agent, pref. a sulfur vulcanizing agent for rubber, are kneaded with 100pts.wt. solution- polymerized styrene/butadiene rubber. The resulting compsn. is molded into a required shape and crosslinked.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8827981A JPS57205433A (en) | 1981-06-10 | 1981-06-10 | Water-expandable rubber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8827981A JPS57205433A (en) | 1981-06-10 | 1981-06-10 | Water-expandable rubber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57205433A true JPS57205433A (en) | 1982-12-16 |
Family
ID=13938457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8827981A Pending JPS57205433A (en) | 1981-06-10 | 1981-06-10 | Water-expandable rubber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57205433A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6573412B1 (en) * | 2000-05-12 | 2003-06-03 | Bridgestone Corporation | Chain-coupled polymeric alkoxide compounds having controlled viscosity |
-
1981
- 1981-06-10 JP JP8827981A patent/JPS57205433A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6573412B1 (en) * | 2000-05-12 | 2003-06-03 | Bridgestone Corporation | Chain-coupled polymeric alkoxide compounds having controlled viscosity |
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