JPS56127617A - Water absorbing polyurethane composition and its preparation - Google Patents
Water absorbing polyurethane composition and its preparationInfo
- Publication number
- JPS56127617A JPS56127617A JP3066680A JP3066680A JPS56127617A JP S56127617 A JPS56127617 A JP S56127617A JP 3066680 A JP3066680 A JP 3066680A JP 3066680 A JP3066680 A JP 3066680A JP S56127617 A JPS56127617 A JP S56127617A
- Authority
- JP
- Japan
- Prior art keywords
- water absorbing
- polyvinyl alcohol
- component
- finely powdered
- preparation
- 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
Abstract
PURPOSE: To obtain a composition suitable for a water stopping material of waterprofing work, piping, a water tank, etc. having improved water absorbing properties, by dispersing a finely powdered highly water absorbing resin in a polyurethane matrix.
CONSTITUTION: (A) A polymerization raw material or a precursor for polyurethane is incorporated with (B) a finely powdered highly water absorbing resin, and if necessary (C) an organic powder, e.g. starch or polyvinyl alcohol, and/or inorganic powder at a component (A)/(B)/(C) weight ratio of preferably 20W50/5W40/ 75W10, and the resultant mixture is polymerized and molded. The component (B) has a water absorbing ability of 2 times or more the own weight thereof and is preferably obtained by reacting a powdery polyvinyl alcohol polymer with a cyclic acid anhydride, and esterifying the reaction product to introduce carboxyl groups and diester crosslinkages into the chain simultaneously.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3066680A JPS56127617A (en) | 1980-03-10 | 1980-03-10 | Water absorbing polyurethane composition and its preparation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3066680A JPS56127617A (en) | 1980-03-10 | 1980-03-10 | Water absorbing polyurethane composition and its preparation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56127617A true JPS56127617A (en) | 1981-10-06 |
JPS6318623B2 JPS6318623B2 (en) | 1988-04-19 |
Family
ID=12310056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3066680A Granted JPS56127617A (en) | 1980-03-10 | 1980-03-10 | Water absorbing polyurethane composition and its preparation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56127617A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61225249A (en) * | 1985-03-29 | 1986-10-07 | Toyoda Gosei Co Ltd | Water-swelling composition |
JP2007186657A (en) * | 2006-01-16 | 2007-07-26 | Kanai Educational Institution | Highly water-absorbing polyurethane composite material, method for producing the same and frog |
WO2010113888A1 (en) * | 2009-03-30 | 2010-10-07 | 株式会社クラレ | Resin composition and multi-layered structure |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4944580A (en) * | 1972-07-06 | 1974-04-26 | ||
JPS506226A (en) * | 1973-05-18 | 1975-01-22 | ||
JPS5018917A (en) * | 1973-06-05 | 1975-02-27 | ||
JPS5182991A (en) * | 1974-12-09 | 1976-07-21 | Personal Products Co | |
JPS5380459A (en) * | 1976-12-24 | 1978-07-15 | Hoechst Ag | Water vapor absorbing and water vapor transmitting polyurethane sheettshaped molded form and its production method |
-
1980
- 1980-03-10 JP JP3066680A patent/JPS56127617A/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4944580A (en) * | 1972-07-06 | 1974-04-26 | ||
JPS506226A (en) * | 1973-05-18 | 1975-01-22 | ||
JPS5018917A (en) * | 1973-06-05 | 1975-02-27 | ||
JPS5182991A (en) * | 1974-12-09 | 1976-07-21 | Personal Products Co | |
JPS5380459A (en) * | 1976-12-24 | 1978-07-15 | Hoechst Ag | Water vapor absorbing and water vapor transmitting polyurethane sheettshaped molded form and its production method |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61225249A (en) * | 1985-03-29 | 1986-10-07 | Toyoda Gosei Co Ltd | Water-swelling composition |
JPH0434574B2 (en) * | 1985-03-29 | 1992-06-08 | Toyoda Gosei Kk | |
JP2007186657A (en) * | 2006-01-16 | 2007-07-26 | Kanai Educational Institution | Highly water-absorbing polyurethane composite material, method for producing the same and frog |
WO2010113888A1 (en) * | 2009-03-30 | 2010-10-07 | 株式会社クラレ | Resin composition and multi-layered structure |
US8877865B2 (en) | 2009-03-30 | 2014-11-04 | Kuraray Co., Ltd. | Resin composition and multilayered structure |
Also Published As
Publication number | Publication date |
---|---|
JPS6318623B2 (en) | 1988-04-19 |
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