Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1988-01-11
1989-09-19
Kight, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
528291, C08G 1828, C08G 6944
Patent
active
048682675
ABSTRACT:
A thermosetting resin composition comprising the product of an unsaturated polyester intermediate resin which is derived from the reaction of (a) an acid anhydride selected from the group including maleic acid anhydride or a mixture of maleic anhydride and a polyfunctional acid anhydride, a low molecular weight polyether polyol having a molecular weight of about 100 to about 600 selected from the group including diethylene glycol or a mixture of diethylene glycol and at least one other low molecular weight polyether polyol having a molecular weight of about 100 to about 600, and a lower alkylene oxide having from 2-4 carbon atoms; and, (b) a mono- or di-functional amino compound selected from the group including diethanolamine or a mixture of diethanolamine and at least one other mono- or di-functional amino compounds selected from the group including a primary or secondary amino alcohol or a primary or secondary diamine which contain isocyanate reactive groups attached to the nitrogen of the amino alcohol or diamine, the equivalent ratio of mono- or di-functional amino compound to unsaturated polyester intermediate resin being in the range from about 0.125 to about 0.5, such that a corresponding proportion of the unsaturated polyester intermediate resin remains unreacted and has a maleate functionality; (c) a morpholine compound; (d) a vinyl crosslinking compound; and (e) an isocyanate. The thermosetting resin compositions are especially useful in a reaction injection molding (RIM) process to prepare molded articles.
REFERENCES:
patent: 3234153 (1966-02-01), Britain
patent: 4002601 (1977-01-01), Hajek et al.
patent: 4507463 (1985-03-01), Orban
Bershas James P.
Tobias Russell H.
Daley Dennis R.
Gillespie Ted C.
Kight John
Martineau Catherine B.
Owens-Corning Fiberglas Corporation
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