JPS57195721A - Production of polyurethane foam with rigid skin - Google Patents

Production of polyurethane foam with rigid skin

Info

Publication number
JPS57195721A
JPS57195721A JP56081016A JP8101681A JPS57195721A JP S57195721 A JPS57195721 A JP S57195721A JP 56081016 A JP56081016 A JP 56081016A JP 8101681 A JP8101681 A JP 8101681A JP S57195721 A JPS57195721 A JP S57195721A
Authority
JP
Japan
Prior art keywords
polyol
mold
mixture
catalyst
blowing agent
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
JP56081016A
Other languages
Japanese (ja)
Other versions
JPH0138129B2 (en
Inventor
Yasuo Hiyoshi
Susumu Tsujiku
Masao Goto
Ataru Yokono
Satsuji Naka
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56081016A priority Critical patent/JPS57195721A/en
Priority to US06/340,657 priority patent/US4444704A/en
Priority to DE19823202327 priority patent/DE3202327A1/en
Publication of JPS57195721A publication Critical patent/JPS57195721A/en
Publication of JPH0138129B2 publication Critical patent/JPH0138129B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the titled substance which scarcely leaves fins on the mold surface and can be released from the mold within a short time, by mixing an isocyanate with a specified polyether contg. active hydrogen, a blowing agent, a catalyst, etc., and foaming and setting the mixture within a sealed mold at 55W 80°C.
CONSTITUTION: A component comprising a polyol, average OH value 380W760mg KOH, containing above 5wt% polyol having a group derived by adding an alkylene oxide to an aliphatic amine, and represented by formulaI, wherein R is H or alkyl and n is a natural number, a catalyst which is a salt of a tert. amine having a hetero ring in the molecule, and a blowing agent (e.g., low-boiling halogenated hydrocarbon) is collided and mixed with a polyisocyanate[e.g., formula II (l is 0.3W0.8), a compound having at least 10% carbodiimidated MD]]. The purpose substance is obtained by injecting the mixture into a sealed mold at 55W80°C and forming and setting the mixture. Here, if the above polyol is used in admixture with 20W80wt% second polyol of formula III, the mold release time is further shortened.
COPYRIGHT: (C)1982,JPO&Japio
JP56081016A 1981-01-26 1981-05-29 Production of polyurethane foam with rigid skin Granted JPS57195721A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP56081016A JPS57195721A (en) 1981-05-29 1981-05-29 Production of polyurethane foam with rigid skin
US06/340,657 US4444704A (en) 1981-01-26 1982-01-19 Process for producing integral skin polyurethane foam
DE19823202327 DE3202327A1 (en) 1981-01-26 1982-01-26 COMPOSITIONS AND METHOD FOR PRODUCING POLYURETHANE INTEGRAL FOAMS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56081016A JPS57195721A (en) 1981-05-29 1981-05-29 Production of polyurethane foam with rigid skin

Publications (2)

Publication Number Publication Date
JPS57195721A true JPS57195721A (en) 1982-12-01
JPH0138129B2 JPH0138129B2 (en) 1989-08-11

Family

ID=13734695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56081016A Granted JPS57195721A (en) 1981-01-26 1981-05-29 Production of polyurethane foam with rigid skin

Country Status (1)

Country Link
JP (1) JPS57195721A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60196442A (en) * 1984-03-15 1985-10-04 Toyoda Gosei Co Ltd Impact absorbing material
JPH0247127A (en) * 1988-08-10 1990-02-16 Nippon Polyurethane Ind Co Ltd Water-expandable polyisocyanate resin composition
JPH0459839A (en) * 1990-06-29 1992-02-26 Kurabo Ind Ltd Polyol composition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52128997A (en) * 1976-03-12 1977-10-28 Prb Sa Process for producing polyurethane with outer skin layer
JPS5365395A (en) * 1976-11-25 1978-06-10 Kurashiki Boseki Kk White rigid urethane foam compound for site foaming

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52128997A (en) * 1976-03-12 1977-10-28 Prb Sa Process for producing polyurethane with outer skin layer
JPS5365395A (en) * 1976-11-25 1978-06-10 Kurashiki Boseki Kk White rigid urethane foam compound for site foaming

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60196442A (en) * 1984-03-15 1985-10-04 Toyoda Gosei Co Ltd Impact absorbing material
JPH0247127A (en) * 1988-08-10 1990-02-16 Nippon Polyurethane Ind Co Ltd Water-expandable polyisocyanate resin composition
JPH0459839A (en) * 1990-06-29 1992-02-26 Kurabo Ind Ltd Polyol composition

Also Published As

Publication number Publication date
JPH0138129B2 (en) 1989-08-11

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