JPS568420A - Curing agent composed of urethane prepolymer - Google Patents
Curing agent composed of urethane prepolymerInfo
- Publication number
- JPS568420A JPS568420A JP8460479A JP8460479A JPS568420A JP S568420 A JPS568420 A JP S568420A JP 8460479 A JP8460479 A JP 8460479A JP 8460479 A JP8460479 A JP 8460479A JP S568420 A JPS568420 A JP S568420A
- Authority
- JP
- Japan
- Prior art keywords
- curing agent
- ammonium salt
- finely divided
- prepolymer
- quaternary ammonium
- 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
- Polyurethanes Or Polyureas (AREA)
Abstract
PURPOSE: |To obtain a cured product of high strength, by using, as a curing agent, a finely divided urethane polymer, which contains at least two NCO groups at the terminal and a quaternary ammonium salt on the molecular chain, and is suitable for curing a wet material.
CONSTITUTION: A tertiary amine compound of formula I, II or III (wherein R1WR3 are alkylene, oxyalkylene, etc.: R4 and R5 are alkyl or oxyalkyl), is modified to a quaternary ammonium salt with an alkylating agent. It is reacted with an isocyanate and, if necessary, with a chain extender such as 1,4-butanediol, to obtain a solid prepolymer. It is crushed and used as a finely divided curing agent. A molded product, excellent in strength, is obtained by mixing water-containing woodflour, water-containing silica sand, etc. with the curing agent, and heating and pressing the mixture in a mold. A prepolymer which contains 0.2W5% of quaternary N and 5W25% of free NCO, is preferable.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8460479A JPS5840972B2 (en) | 1979-07-03 | 1979-07-03 | Curing agent for water-wet substances made of urethane prepolymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8460479A JPS5840972B2 (en) | 1979-07-03 | 1979-07-03 | Curing agent for water-wet substances made of urethane prepolymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS568420A true JPS568420A (en) | 1981-01-28 |
JPS5840972B2 JPS5840972B2 (en) | 1983-09-09 |
Family
ID=13835279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8460479A Expired JPS5840972B2 (en) | 1979-07-03 | 1979-07-03 | Curing agent for water-wet substances made of urethane prepolymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5840972B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014092985A3 (en) * | 2012-12-14 | 2014-08-07 | Dow Global Technologies Llc | Solid, self-bondable isocyantate-containing organic polymers and methods for using same |
-
1979
- 1979-07-03 JP JP8460479A patent/JPS5840972B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014092985A3 (en) * | 2012-12-14 | 2014-08-07 | Dow Global Technologies Llc | Solid, self-bondable isocyantate-containing organic polymers and methods for using same |
CN104837941A (en) * | 2012-12-14 | 2015-08-12 | 陶氏环球技术有限责任公司 | Solid, self-bondable isocyantate-containing organic polymers and methods for using same |
US9840576B2 (en) | 2012-12-14 | 2017-12-12 | Dow Global Technologies Llc | Solid, self-bondable isocyanate-containing organic polymers and methods for using same |
Also Published As
Publication number | Publication date |
---|---|
JPS5840972B2 (en) | 1983-09-09 |
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