C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
117/201, 400/302
C08L 39/04 (2006.01) C08L 39/00 (2006.01) C08L 63/00 (2006.01) C09D 7/02 (2006.01) C09D 139/00 (2006.01) C09D 139/04 (2006.01) C09D 163/00 (2006.01)
Patent
CA 2019566
- 1 - PATENT APPLICATION of Paul Ralph Van Rheenen and Chuen-Shyong Chou for CATIONIC LATEX COATINGS DN:87-52 MSA:vjc ABSTRACT OF THE DISCLOSURE A novel coating composition, exhibiting improved adhesion to anionic substrates and a process for its preparation and use, is disclosed. The coating contains an aqueous dispersion of a cationic polymeric binder. The polymeric binder is preferably prepared by the polymerization of at least one monoethylenically unsaturated monomer, having amine functionality, in the presence of at least one nonionic or amphoteric surfactant, followed by the subsequent neutralization of the polymer using selected acids. Coatings containing the cationic latex polymeric binder and selected cationic pigment dispersants are provided. In addition, by selecting certain process conditions and reactive pigments, completely cationic aqueous coating compositions, which maintain the advantages of a water-based system while exhibiting excellent stain blocking, corrosion resistance, water sensitivity resistance and adhesion to wood and alkyd surfaces, and which are competitive in their performance with conventional solvent based alkyd primers and paints, are disclosed. Express Mail No.: B01721785Y
Chou Chuen-Shyong
Van Rheenen Paul R.
Gowling Lafleur Henderson Llp
Rohm & Haas Company
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