JPS56139521A - Preparation of polyurethane - Google Patents

Preparation of polyurethane

Info

Publication number
JPS56139521A
JPS56139521A JP4318880A JP4318880A JPS56139521A JP S56139521 A JPS56139521 A JP S56139521A JP 4318880 A JP4318880 A JP 4318880A JP 4318880 A JP4318880 A JP 4318880A JP S56139521 A JPS56139521 A JP S56139521A
Authority
JP
Japan
Prior art keywords
curing
polyurethane
chloroprene polymer
prepolymer
chloroprene
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
Application number
JP4318880A
Other languages
Japanese (ja)
Inventor
Kiyonobu Maruhashi
Shotaro Fujii
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo 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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP4318880A priority Critical patent/JPS56139521A/en
Publication of JPS56139521A publication Critical patent/JPS56139521A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polyurethanes Or Polyureas (AREA)

Abstract

PURPOSE: To prepare polyurethane improved in hardness reduction in thermal aging at high temperatures, in hydrolytic properties, etc., by curing a prepolymer with two or more terminal isocyanate groups, employing a specific liquid chloroprene polymer containing hydroxy groups at curing agents.
CONSTITUTION: Chloroprene polymer, having two or more hydroxy groups and a number-average molecular weight between 500 and 10,000, is obtained by the radical copolymerization in solvent of a hydroxy group-containing polymerizable monomer represented by the formula, where R is a 2W3C hydrocarbon group; n is 1 or 2, and chloroprene monomer (along with which other copolymerizable monomers may be used), in the presence of an aliphatic mercapto alcohols. Said chloroprene polymer is used as a curing agnet. In this instance, from about 5W100pts.wt. curing agent above described is added to 100pts.wt. of prepolymer with two or more terminal isocyanate groups (e.g. a reaction product of polypropylene glycol and polyisocyanate), and the mixture is reacted to prepare said polyurethane.
COPYRIGHT: (C)1981,JPO&Japio
JP4318880A 1980-04-02 1980-04-02 Preparation of polyurethane Pending JPS56139521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4318880A JPS56139521A (en) 1980-04-02 1980-04-02 Preparation of polyurethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4318880A JPS56139521A (en) 1980-04-02 1980-04-02 Preparation of polyurethane

Publications (1)

Publication Number Publication Date
JPS56139521A true JPS56139521A (en) 1981-10-31

Family

ID=12656936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4318880A Pending JPS56139521A (en) 1980-04-02 1980-04-02 Preparation of polyurethane

Country Status (1)

Country Link
JP (1) JPS56139521A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58136614A (en) * 1982-02-05 1983-08-13 Idemitsu Kosan Co Ltd Production of foam
JPS62121720A (en) * 1985-11-21 1987-06-03 Idemitsu Petrochem Co Ltd Production of cured material
US4910281A (en) * 1987-09-22 1990-03-20 Minnesota Mining And Manufacturing Company Acryloyloxy and methacryloyloxy group-containing condensation polymers
US4921930A (en) * 1987-09-22 1990-05-01 Minnesota Mining And Manufacturing Company Acryloyloxy and methacryloyloxy group-containing condensation polymers
CN113201114A (en) * 2021-04-06 2021-08-03 郑州中原思蓝德高科股份有限公司 Isocyanate-terminated polyurethane prepolymer and double-component polyurethane cold-patch adhesive

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58136614A (en) * 1982-02-05 1983-08-13 Idemitsu Kosan Co Ltd Production of foam
JPS6159325B2 (en) * 1982-02-05 1986-12-16 Idemitsu Kosan Co
JPS62121720A (en) * 1985-11-21 1987-06-03 Idemitsu Petrochem Co Ltd Production of cured material
JPH057409B2 (en) * 1985-11-21 1993-01-28 Idemitsu Petrochemical Co
US4910281A (en) * 1987-09-22 1990-03-20 Minnesota Mining And Manufacturing Company Acryloyloxy and methacryloyloxy group-containing condensation polymers
US4921930A (en) * 1987-09-22 1990-05-01 Minnesota Mining And Manufacturing Company Acryloyloxy and methacryloyloxy group-containing condensation polymers
CN113201114A (en) * 2021-04-06 2021-08-03 郑州中原思蓝德高科股份有限公司 Isocyanate-terminated polyurethane prepolymer and double-component polyurethane cold-patch adhesive

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