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Dow Global Technologies Patents Coating

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World

U.S. 8,546,477 B2
Dow Global Technologies has received a patent for a process for producing a coating composition comprised of the steps of providing 10 to 55 percent by weight of an ethylene based copolymer composition comprise of an ethylene-olefin copolymer; providing 5 to 25 percent by weight of a propylene polymer composition comprised of a propylene-olefin copolymer having a melt flow rate of 0.1 to 150 g/10 minutes, measured at 230° C and 2.16 Kg weight, a melting point in the range of from 130 to 180° C and a melt strength in the range of 5 cN to 50 cN; providing 15 to 60 percent by weight of a chlorinated polyethylene; providing less than 40 percent by weight of a filler; providing 1 to 20 weight percent by weight of an adhesion promoting agent comprised of an acid or acid derivative functionalized polyolefin; providing 0.1 to 10 percent by weight of one or more scratch mar resistance agents; melt blending the ethylene-based copolymer composition, the propylene polymer composition, the chlorinated olefin polymer composition, the filler, the adhesion promoting agent, and the one or more scratch mar resistance agents; producing the coating.

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