C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
400/5751, 400/57
C09D 167/08 (2006.01) C08F 299/04 (2006.01)
Patent
CA 1280531
ABSTRACT OF THE DISCLOSURE The invention is directed to new water reducible alkyd vinyl copolymer resins for use as a binder in coating compositions, a method for the preparation of such resins and coating compositions which include such resins. More specifically, alkyd vinyl copolymer resins of this invention are not only reducible or miscible in water, but provide improved film properties for coating compositions using the resins as a binder. In particular, the invention is directed to a water reducible alkyd vinyl copolymer resin having an acid number in the range of from about 30 to about 70, a method for making the copolymer resin and coating compositions which include the resin are described wherein the copolymer resin is the reaction product of from about 10 to about 90 percent by weight, based upon the weight of monomers and initiator which provide the alkyd vinyl copolymer resin, of an alkyd resin which is the product of a polymerization reaction and which has an acid number in the range of from about 30 to about 70; and from about 10 to about 90 percent by weight based upon the weight of the monomers and initiator which provide the alkyd vinyl copolymer resin, of a vinyl resin which has an acid number in the range of about 30 to about 70. The vinyl resin and the alkyd resin each have acid numbers within 50 percent of the acid number of the alkyd vinyl copolymer resin, and the polymerization reaction for the alkyd resin is carried out in the presence of the vinyl resin, or the reaction for the vinyl resin is carried out in the presence of the alkyd resin to provide the alkyd vinyl copolymer resin.
535938
Hage Martin L.
Schmidt Roger A.
Cargill Incorporated
Macrae & Co.
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