C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
400/5908, 117/47
C09D 157/00 (2006.01) C08F 283/00 (2006.01) C08F 283/06 (2006.01) C09D 151/08 (2006.01) C09D 171/00 (2006.01)
Patent
CA 2012950
Very small (100 nanometers maximum) non-ionically-stabilised core-sheath addition polymer particles, wherein the core is addition polymer and the sheath polyoxyalkylene chains, at least a portion of which chains are bonded to the core, there being present on each core sufficient chains such that the mass ratio of core to sheath is from 98:2 to 60:40. The particles are prepared by polymerisation in aqueous media initiated at under 40°C. In a preferred embodiment a seed-feed process is used. The dispersions exhibit excellent rheological characteristics and are useful, for example, as film-formers in coating compositions.
Anderson Geoffrey B.
Bignell David S.
Cook Iain B.
Leary Bruce
Lyons Christopher J.
Anderson Geoffrey B.
Bignell David S.
Cook Iain B.
Leary Bruce
Lyons Christopher J.
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