Title:
リン酸エステル化アクリルポリマー分散剤を用いた安定な水系メタリックフレーク分散液
Document Type and Number:
Japanese Patent JP3775797
Kind Code:
B2
Abstract:
A pigment dispersion useful for forming aqueous coating compositions containing metallic flake pigment, an aqueous carrier and a graft copolymer dispersant (binder); wherein the graft copolymer has a weight average molecular weight of about 5,000-100,000 and comprises a polymeric backbone and macromonomer side chains attached to the backbone wherein (1) the polymeric backbone is formed of polymerized ethylenically unsaturated monomers and (2) the side chains are macromonomers that are attached to the backbone at a single terminal point and formed from polymerized ethylenically unsaturated monomers that are polymerized in the presence of a cobalt chain transfer agent have a weight average molecular weight of about 1,000-30,000; wherein the graft copolymer contains about 2 to 70% by weight, based on the weight of the graft copolymer, of polymerized constituents having a phosphate moiety and phosphoric acid moieties that are polymerized into the backbone, the side chains or both and the polymer is neutralized with an inorganic base or an amine; and the metallic flake pigment is present in a binder to pigment weight ratio of least 10/100; coating compositions containing the novel dispersion, the graft copolymer and the process for making the graft copolymer and pigment dispersions are part of the invention.
Inventors:
Antonelli, Joseph, Albert
Becton, Lee, Allen, Edwin
Devlin, Bryan, Pee.
Scopatzi, Christopher
Becton, Lee, Allen, Edwin
Devlin, Bryan, Pee.
Scopatzi, Christopher
Application Number:
JP50806096A
Publication Date:
May 17, 2006
Filing Date:
August 01, 1995
Export Citation:
Assignee:
E.I.du Pont de Nemours & Company
International Classes:
C08F2/38; C08F8/40; C09D155/00; C08F290/04; C09D5/00; C09D7/12; C09D17/00
Domestic Patent References:
| JP3438893B2 | ||||
| JP60133071A | ||||
| JP6281459A |
Foreign References:
| WO1995019999A1 |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe