Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1991-10-04
1993-01-12
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
280728, 521155, 521176, C08J 900
Patent
active
051791323
ABSTRACT:
A pad for an air bag device comprising polyurethane material having elongation ratios of 60% or more at 85.degree. C., and 40% or more at -35.degree. C., respectively. The polyurethane material is obtained through reaction of isocyanate mainly formed of diphenylmethane diisocyanate, polyether type polyol with molecular weight of 3,000-8,000 and the functional group number of 2-2.5, and the diol type cross-linking agent with molecular weight of 110 or less.
REFERENCES:
patent: 4148503 (1979-04-01), Shiratori et al.
patent: 4852907 (1989-08-01), Shiraki et al.
patent: 5002306 (1991-03-01), Hiramitsu et al.
patent: 5110647 (1992-05-01), Sawada et al.
Mizuno Hisashi
Takimoto Masahiro
Foelak Morton
Toyoda Gosei Co,., Ltd.
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