Acid reactable inorganic mineral fillers having improved...

Details Acid reactable inorganic mineral fillers having improved... Acid reactable inorganic mineral fillers having improved...

C - Chemistry, Metallurgy

08

K

400/6429, 117/46

C08K 9/10 (2006.01) C08F 292/00 (2006.01) C08J 5/06 (2006.01) C09C 1/02 (2006.01)

Patent

CA 1128816

ABSTRACT OF THE DISCLOSURE Mineral fillers reactable with acids such as metal carbonates such as CaCO3 are rendered more compatible with poly- olefin resins such as polyethylene by first reacting the fillet with a long chain carboxylic acid to form a surface film of the acid. The acid reacted filler is contacted with a vinyl ester of the acid which is then polymerized in the presence of a free racical catalyst such as benzoyl peroxide to encapsulate the acid reacted filler in a coating of the polymerized ester.

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