C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 131/04 (2006.01) C08F 2/30 (2006.01) C08F 218/08 (2006.01) C08F 261/04 (2006.01) C08F 283/00 (2006.01) C09J 151/00 (2006.01)
Patent
CA 2260488
The present invention relates to an aqueous emulsion polymer which is useful as a woodworking adhesive. The polymer is prepared by reacting vinyl acetate with an N-methylol containing copolymerizable monomer in the presence of polyvinyl alcohol wherein at least 85% of the polyvinyl alcohol is hydrolyzed and a water-dispersible nonionic polyurethane. The polyurethane is prepared by reacting (i) an organic polyisocyanate, (ii) water-soluble polyalkylene glycols containing at least 70 weight percent of ethylene glycol units, and (iii) polyhydric branched alcohols containing at least three hydroxyl groups per molecule.
Farwaha Rajeev
Liverance Patricia A. M.
Northover James A.
Yearwood Godric S.
National Starch And Chemical Investment Holding Corporation
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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