Use of soy polysaccharides as a thickening agent for alkali silicate adhesives
AssigneeRalston Purina Company
InventorsThomas L. Krinski, Charles E. Coco
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Abstract
A silicate containing adhesive is disclosed which is suitable for the production of laminated paper products comprising an aqueous solution of an alkali metal silicate together with soy polysaccharides in an amount effective to thicken the silicate solution, thereby providing a silicate adhesive which has good adhesive properties and may be used for bonding of two surfaces without excess penetration of the adhesive into either of the surfaces to be bonded.
Claims26
A silicate containing adhesive composition comprising an aqueous solution of an alkali metal silicate containing a soy polysaccharide material in an amount effective to thicken said solution and improve the adhesive properties thereof.
A silicate containing adhesive composition comprising an aqueous solution containing an alkali metal silicate in an amount of 20 to 45% by weight of said solution and a soy polysaccharide material in an amount of 1 to 25% by dry weight of the alkali metal silicate.
A process for the production of an adhesive composition for laminated paper products comprising:
- a. forming an aqueous solution of an alkali metal silicate, and
- b. adding to said solution a soy polysaccharide material in an amount effective to thicken said solution and improve the adhesive properties thereof.
Dependencies are inferred from the claim text.