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US 4,357,429 AGranted
Process for the production of alkali metal silicate-organic plastics
OwnerDavid H. Blountinventor
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Abstract
Polymerable organic compounds and an epoxide compound are emulsified with aqueous alkali metal silicate solutions then polymerized with a catalyst such as a peroxide type catalyst thereby producing an alkali metal silicate organic plastic which may be used as an adhesive, as molding powder or reacted with an organic diisocyanide to produce polyurethane silicate resins and foams.
Claims22
The process for the production of polyurethane silicate foamed products by the following steps:
- (a) mixing and reacting an aqueous alkali metal silicate solution in the amount of 100 parts by weight, a polymerable unsaturated organic compound in the amount of 5 to 100 parts by weight, a mono- or polycarboxylic acid salt forming compound in the amount of 1 to 10 parts by weight, an organic epoxide compound, selected from the group consisting of ethylene oxide, propylene oxide, epichlorohydrin and mixtures thereof, in the amount of 1 to 50 parts by weight, and a catalytic amount of an initiator, thereby
- (b) producing an alkali metal silicate-organic plastic, then
- (c) adding and reacting 5 to 100 parts by weight of a polyisocyanate or polyisothiocyanate, up to 10% by weight of a polyisocyanate initiator, up to 20% by weight of an emulsifier, up to 50% by weight of a blowing agent, and up to 20% by weight of a foam regulator, percentages based on the weight of the reaction mixture, thereby
- (d) producing a foamed polyurethane silicate product.
1 more element
Dependencies are inferred from the claim text.