Urea-formaldehyde resin adhesive

Details Urea-formaldehyde resin adhesive Urea-formaldehyde resin adhesive

C - Chemistry, Metallurgy

08

K

400/4204, 400/54

C08K 3/40 (2006.01) C08L 61/24 (2006.01) C09J 161/24 (2006.01)

Patent

CA 1156391

ABSTRACT OF THE DISCLOSURE A urea-formaldehyde resin adhesive comprising a powder of a substance having the property of gradually reacting with an acid and thus consuming the acid. The powder is a powder of an alkali glass having the composition of the general formula (X2O)x(YO)y(SiO2)(B2O3)z(Al2O3) wherein X represents an alkali metal, Y represents an alkaline earth metal, x represents a number of from 0.05 to 0.5, y represents a number of from 0.05 to 0.5, z represents a number of from 0 to 0.5, and n represents a number of from 0 to 0.2, or microcapsules containing a powder of an alkaline substance.

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