| abstract |
Aqueous emulsion polymerization of acryloxyalkyl alkoxysilane, alkyl acrylic esters, and optionally other vinyl monomers produces copolymers curable at low temperatures. The silane may be introduced to the polymerization after a portion of the other monomers are polymerized. Heat curing improves the solvent resistance of cured as-cast films of the latex. Silanol curing catalysts enhance the cure rate. Paper coatings are comparison tested for wet and dry tensile. Exemplary is a latex of a polymer of 40.7 percent 2-ethylhexyl acrylate, 18.5 percent vinylidene chloride, 37.6 percent vinyl chloride and 3.2 percent gammamethacryloxypropyl trimethoxysilane. |