C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 2/44 (2006.01) C08F 289/00 (2006.01) C08L 57/00 (2006.01) C08L 91/06 (2006.01)
Patent
CA 2137956
Stable, compatible, resin fortified aqueous vinyl polymer emulsions that are rich in wax are prepared in a method comprising a first polymerization of a mixture containing wax and monomers that include carboxylated monomers such as acrylic acid. The first polymerization or terpolymerization is carried out under conditions sufficient to produce a relatively low molecular weight resin. A portion of the wax rich resin from the first polymerization is neutralized and used as a cosurfactant in a second aqueous emulsion polymerization of vinyl monomers to produce a fortified vinyl latex that is rich in wax. Coatings prepared from the latex exhibit superior moisture barrier properties and are also useful as surface preservatives.
Pucknat John G.
Su Christina C.
Mccarthy Tetrault Llp
Sun Chemical Corporation
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