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US 4,383,089 AGranted
Process for the production of polyepoxy silicate resin
OwnerDavid H. Blountinventor
Life of this patent
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Abstract
Alkali metal aldehyde lignin-cellulose silicate polymers are reacted chemically with an epihalohydrin compound to produce a polyepoxy silicate resin; the polyepoxy silicate resin may be cured by a catalyst, e.g., an amine or Lewis acid, to produce a cured epoxy resin, solid or cellular solid product which may be used as an adhesive, as construction sheets, etc.
Claims17
The process for the production of polyurethane silicate resinous product by the following steps:
- (a) mixing and reacting 10 to 200 parts by weight of polyfunctional epoxide compound and 50 parts by weight of an alkali metal aldehyde broken down lignin-cellulose silicate polymer thereby
- (b) producing an aldehyde broken down lignin-cellulose silicate polyepoxy resin;
- then
- (c) mixing and reacting 100 parts by weight of a polyisocyanate with 50 to 200 parts by weight of the aldehyde broken down lignin-cellulose silicate polyepoxy resin, thereby
- (d) producing a polyurethane silicate resinous product.
2 more elements
Dependencies are inferred from the claim text.