Inventors:
Gary P. Craun - Berea OH
Kenneth G. Hahn - Hinckley OH
George P. Rosekelly - Norwalk OH
Assignee:
The Glidden Company - Cleveland OH
International Classification:
C08F12068
US Classification:
526318, 526335, 524514, 524556, 524564
Abstract:
An ambient dry water dispersed coating composition substantially free of volatile organic coalescing solvents, the coating composition containing a polymer film forming binder comprises between 40% and 50% copolymerized non-conjugated, unsaturated fatty acid triglyceride, between 40% and 55% copolymerized ethylenic monomer including styrene, and between 3% and 12% copolymerized maleic anhydride. The film forming copolymer is produced by first reacting maleic anhydride with the fatty acid triglyceride at high temperatures between 140Â C. to form a maleinized triglyceride having a pendent maleic anhydride structure. The maleinized triglyceride is then styrenated at temperatures between about 80Â C. and 200Â C. in the presence of at least 4% peroxide initiator based on the weight of monomers copolymerized to form a styrenated, maleinized fatty acid triglyceride copolymer having anhydride groups.