C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 103/04 (2006.01) C08F 2/26 (2006.01) C09D 5/02 (2006.01) C09D 5/04 (2006.01) C09D 157/00 (2006.01) C08B 31/04 (2006.01)
Patent
CA 2282207
Latex paint compositions containing water, pigment and a latex wherein the latex is prepared by emulsion polymerization of at least one ethylenically unsaturated monomer in the presence of 0.1 to 0.2 pphm of at least one hydrophobically modified starch having the structure (see formula I) In the above structure, St is a starch base material, R1 is a dimethylene or trimethylene group, R2 is selected from the group consisting of alkyl, alkenyl, aralkyl and aralkenyl groups having 2 to 20 carbon atoms, and Y is selected from the group consisting of hydrogen, alkali metal, alkaline earth metal and ammonium. The hydrophobically modified starch is the reaction product of starch and an anhydride moiety and provides the latex paint with improved rheological properties and allows for easier spreading and less dripping of paint.
Billmers Robert L.
Farwaha Rajeev
Phan Lien
Yearwood Godric S.
Celanese International Corporation
National Starch And Chemical Investment Holding Corporation
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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