JPS568420A - Curing agent composed of urethane prepolymer - Google Patents

Curing agent composed of urethane prepolymer

Info

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
Application number
JP8460479A
Other languages
Japanese (ja)
Other versions
JPS5840972B2 (en
Inventor
Jiyunji Nanba
Takashi Suzuki
Toshio Imai
Kazuhiro Kosaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON SOFURAN KAKO KK
NIPPON SOFURAN KAKOU KK
Original Assignee
NIPPON SOFURAN KAKO KK
NIPPON SOFURAN KAKOU KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NIPPON SOFURAN KAKO KK, NIPPON SOFURAN KAKOU KK filed Critical NIPPON SOFURAN KAKO KK
Priority to JP8460479A priority Critical patent/JPS5840972B2/en
Publication of JPS568420A publication Critical patent/JPS568420A/en
Publication of JPS5840972B2 publication Critical patent/JPS5840972B2/en
Expired legal-status Critical Current

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
JP8460479A 1979-07-03 1979-07-03 Curing agent for water-wet substances made of urethane prepolymer Expired JPS5840972B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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