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US RE31,340 EGranted
Process for the production of poly (polyisocyanate-polyol-alkali metal silicate) solid
OwnerDavid H. Blountinventor
Life of this patent
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Abstract
Poly (polyisocyanate-polyol-alkali metal silicate) solid or foamed products are produced by mixing a dry granular alkali metal silicate with a polyol while heating to form an emulsion which is then reacted with an organic polyisocyanate.
Claims23
The improved process for the production of poly (polyisocyanate-polyol-alkali metal silicate) products by mixing and reacting the following components:
- (a) the improvement comprises of producing an emulsion of an alkali metal silicate, which contains only water molecules that are attached to the alkali metal silicate, in a polyol;
- (b) an organic polyisocyanate or polyisothiocyanate.
Dependencies are inferred from the claim text.