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US 4,378,441 AGranted
Process for the production of polyester silicate resinous products
OwnerDavid H. Blountinventor
Life of this patent
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Abstract
By mixing and reacting an alkali metal silicate, a substituted monohydroxy organic compound and a polycarboxylic acid and/or polycarboxylic acid anhydride, polyester silicate resinous products are produced which may be utilized as molding powder, coating agent, etc.
Claims30
The process for the production of polyurethane silicate foamed product by the following steps:
- (a) mixing and reacting the following components, thereby producing a polyester resinous product:
- (i) an alkali metal silicate, 1 to 10 parts by weight;
- (ii) an organic monohydroxy compound having a substituent which will split off during the reaction, 10 to 30 parts by weight;
- (iii) a polycarboxylic acid, polycarboxylic acid anhydride and mixtures thereof, 10 to 30 parts by weight;
- (b) mixing and reacting 1 to 95 parts by weight of the polyester silicate resinous product, up to 50% by weight of a blowing agent, percentage based on the weight of the polyester resinous product and the polyisocyanate, and 50 parts by weight of a polyisocyanate or polyisothiocyanate.
2 more elements
Dependencies are inferred from the claim text.