公开(公告)号：JPH04298545A

公开(公告)日：1992-10-22

申请号：JP6445091

申请日：1991-03-28

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAMOTO HIDEO ,  KAMIKADO KAZUTO ,  AMAYOSHI TOMONAO ,  TANIMOTO YASUAKI

IPC: C08G18/50 ,  C08G18/30 ,  C08G18/66 ,  C08G101/00 ,  C08J9/14 ,  C08L75/04 ,  F25D23/08

Abstract: PURPOSE:To obtain the title foam excellent in strengths and thermal insulation properties by mixing a specific hydroxylic component, a specific blowing agent, an org. polyisocyanate, a foam stabilizer, a catalyst, and an open cell generator and foaming the mixture. CONSTITUTION:The title foam is produced by mixing a hydroxylic component obtd. by mixing a polyol component contg. at least 70wt.% polyether polyol which is a polyadduct formed between an alkylene oxide (e.g. propylene oxide) and an arom. diamine (e.g. tolylenediamine) and has an OH value of 300-550 mgKOH/g with 5-30wt.% nonamine active hydrogen compd. (e.g. ethylene glycol), an org. polyisocyanate (e.g. a tolylene diisocyanate prepolymer), a foam stabilizer (e.g. F-318, a product of Shin-Etsu Chemical Co., Ltd.), a catalyst (e.g. dimethylethanolamine), a halogenated hydrocarbon blowing agent at least contg. H and F (e.g. HCFC-123), and an open cell generator (e.g. calcium stearate), and foaming the mixture.