C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
117/200, 400/306
C08F 2/14 (2006.01) C08F 2/08 (2006.01) C08F 279/02 (2006.01) C08F 283/00 (2006.01) C09D 151/04 (2006.01)
Patent
CA 1266139
ABSTRACT OF THE DISCLOSURE Stable dispersion of addition (co)polymers in an inert relatively non-polar organic hydrocarbon liquid, the dispersed particles embracing both a (co)polymer and a polymer containing an ethylenically unsaturated monomer. The (co)polymers are substantially composed of: a) 5 to 100 mole % of styrene and/or methyl styrene; b) 0 to 95 mole % of alkyl m ethacrylate having 1 or 2 carbon atoms in the alkyl group and/or alkoxyalkylene methacrylate having 1 or 2 carbon atoms in the alkoxy group and the alkylene group; c) 0 to 40 mole % of alkyl methacrylate having 3 to 12 carbon atoms in the alkyl group; d) 0 to 40 mole % of hydroxyalkyl methacrylate having 2 to 12 carbon atoms in the alkyl group and/or glycidyl methacrylate, and e) 0 to 20 mole % of methacrylic acid. The (co)polymers are grafted to a polymer of a number average molecular weight of 2000 to 10.000, at least 60% by weight of which consists of butandiene, the weight percentage graft polymer being 20 to 200% of that of the (co)polymer and the sum of this percentage and the percentage of styrene and/or methyl styrene in the copolymer being higher than or equal to 50. At room temperature the dispersions dry to form a smooth and very glossy film.
487046
Akzo N.v.
Buter Roelof
Marks & Clerk
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