Foamability of phenolic resins

Details Foamability of phenolic resins Foamability of phenolic resins

C - Chemistry, Metallurgy

09

J

403/54, 154/107.

C09J 161/06 (2006.01) B32B 7/12 (2006.01) B32B 27/04 (2006.01) C08G 8/28 (2006.01) C08J 9/30 (2006.01) C08L 61/14 (2006.01) C09J 161/14 (2006.01)

Patent

CA 1317065

TITLE OF THE INVENTION IMPROVED FOAMABILITY OF PHENOLIC RESINS ABSTRACT OF THE DISCLOSURE The invention is a solution of highly advanced phenolic resin with improved inherent foamability that is made from the reaction of phenol, aldehyde, water and alkali the improved foamability being brought about by the incorporation of up to 1.0% by weight, anhydrous basis, lime (calcium hydroxide) into the early stages of the reaction mix. In another embodiment, the invention is a plywood glue composition comprising a solution of lime- containing highly advanced phenolic resin, dried animal blood and preferably an aldehyde glue viscosity-lowering agent.

598600

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