C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/5303, 400/72
C08L 33/02 (2006.01) C08F 230/08 (2006.01) C08L 43/04 (2006.01) C08L 57/00 (2006.01) C09D 143/04 (2006.01)
Patent
CA 2022316
ABSTRACT Disclosed is an aqueous composition containing a vinyl-type polymer product having hydrolyzable silyl groups which aqueous composition is stable at relatively high solids for such a composition and yet cures at relatively low temperatures upon the evaporation of water. More particularly, disclosed is a stable, aqueous, colloidal silica-free, dispersion or solution containing a solution-polymerized vinyl-type polymer having acid functionality sufficient to provide an acid value of from 5 to 160 and sufficient hydrolyzable silyl groups to provide a Si content in the range of from 0.40 to 6.0 percent by weight based on the total weight of the vinyl-type polymer. The vinyl-type polymer is characterized in that a composition consisting of at least 25 percent by weight of the polymer in water remains stable in a closed container for at least 24 hours at a temperature of 48.9 degrees Celsius. Also disclosed is a stable, aqueous, colloidal silica-free, coating composition having a total organic resin solids content of greater than or equal to 25 percent by weight, at least 50 percent by weight of the total organic resin solids content consisting of the aforesaid solution-polymerized vinyl-type polymer.
Chang Wen-Hsuan
Kaufman Marvin L.
Mcentire Edward E.
Borden Ladner Gervais Llp
Chang Wen-Hsuan
Kaufman Marvin L.
Mcentire Edward E.
Ppg Industries Inc.
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