Starch-based corrugating adhesive having a polyvinyl alcohol...

Details Starch-based corrugating adhesive having a polyvinyl alcohol... Starch-based corrugating adhesive having a polyvinyl alcohol...

C - Chemistry, Metallurgy

09

J

400/1336, 400/92

C09J 103/02 (2006.01) C09J 129/04 (2006.01)

Patent

CA 2009867

A starch-based corrugating adhesive providing a controlled rate of viscosity increase and green bond formation comprising water, starch. caustic alkali, an active boron source, and polyvinyl alcohol having an intermediate degree of hydrolysis (about 92% to 98%), wherein the polyvinyl alcohol constituent imparts a definite increase in the rate of viscosity building of the adhesive, the rate of viscosity increase being controlled to provide an effective green bond and final adhesive bond on a corrugated board surface.

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