Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1992-06-10
1993-09-14
Kight, III, John
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
428402, 428516, 428519, 524458, 524512, 524558, 524459, B32B 2704
Patent
active
052447375
ABSTRACT:
Very small (100 nanometres 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.degree. 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.
REFERENCES:
patent: 4322328 (1982-03-01), Graetz et al.
patent: 4337189 (1982-06-01), Bromley et al.
patent: 4390658 (1983-06-01), Graetz et al.
patent: 4419465 (1983-12-01), Backhouse et al.
patent: 4587290 (1986-05-01), Davies et al.
patent: 4921898 (1990-05-01), Lenney et al.
patent: 5141814 (1992-08-01), Anderson et al.
Akashi et al., Journal of Polymer Science: Part A: Polymer Chemistry, "Graft Copolymers Having Hydrophobic Backbone and Hydrophilic Branches. IV. A Copolymerization Study of Water-Soluble Oligovinylpyrrolidone Macromonomers", vol. 27, 3521-3530, Sep. 1989.
Miyauchi et al., Journal of Polymer Science: Part A: Polymer Chemistry, "Graft Copolymers Having Hydrophobic Backbone and Hydropholic Branches. III. Synthesis of Graft Copolymers Having Oligovinylpyrrolidone as Hydrophilic Branch", vol. 26, 1561-1571, Jun. 1988.
Anderson Geoffrey B.
Bignell David S.
Cook Iain B.
Leary Bruce
Lyons Christopher J.
ICI Australia Operations Proprietary Limited
Kight III John
Teuong D. V. C.
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