C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 51/00 (2006.01) C08K 3/26 (2006.01) C08L 25/08 (2006.01) C08L 37/00 (2006.01) C09D 11/10 (2006.01) C09D 135/06 (2006.01)
Patent
CA 2146776
A latex which affords a film having superior heat resistance, gloss, and transparency is comprised of: (1) water; (2) a sty- rene-maleic anhydride copolymer solubilized by a solubilizing amount of ammonium hydroxide; (3) a graft copolymer which is comprised of a portion of the solubilized styrene-maleic anhydride copolymer onto which is grafted a polymer formed from the polymerization of one or more polymerizable ethylenically unsaturated monomers selected from the group consisting of an acry- late, a methacrylate, an aromatic alkenyl monomer, an aliphatic alkenyl monomer, and combinations thereof; (4) a polymer dis- persed in the water which is comprised of one or more ethylenically unsaturated monomers selected from the group consisting of an acrylate, a methacrylate, an aromatic alkenyl monomer, an aliphatic alkenyl monomer, and combinations thereof dispersed in the water; (5) a nonionic or anionic surfactant, or a combination thereof; and, (6) optionally, zinc or zirconyl ammonium carbo- nate. The latex has pH in the range of from about 9.0 to about 11Ø
Boucher Stephen P.
Grinstein Rueben
Smith George A.
Fetherstonhaugh & Co.
Henkel Corporation
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