Addition polymer particles

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Addition polymer particles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Addition polymer particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Addition polymer particles will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2025404

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.