Title:
【発明の名称】耐変色性を有する真珠光沢顔料およびその製造方法
Document Type and Number:
Japanese Patent JP3073836
Kind Code:
B2
Abstract:
PCT No. PCT/EP93/01617 Sec. 371 Date Mar. 1, 1994 Sec. 102(e) Date Mar. 1, 1994 PCT Filed Jun. 24, 1993 PCT Pub. No. WO94/01498 PCT Pub. Date Jan. 20, 1994.Disclosed is an anti-discoloring pearly luster pigment of white titanium dioxide-coated mica grains wherein; (a) the surfaces of the titanium dioxide and/or titanium oxide hydrate coated mica particles are coated with from 1 to 7 parts by weight, to 100 parts by weight of the titanium dioxide and/or titanium oxide hydrate coated mica particles, of a silicon oxide and/or silicon oxide hydrate; (b) the surfaces of the coated grains are further coated with from 0.5 to 5 parts by weight, to 100 parts by weight of the mica titanium dioxide and/or titanium oxide hydrate coated particles, of an aluminium oxide and/or aluminum oxide hydrate; and (c) the surfaces of the coated particles are still further coated with from 0.5 to 3 parts by weight, to 100 parts by weight of the titanium dioxide and/or titanium oxide hydrate coated mica particles, of a zinc oxide and/or zinc oxide hydrate.
Inventors:
Kazuhisa Iwasa
Katsuhisa Nitta
Tamio Noguchi
Katsuhisa Nitta
Tamio Noguchi
Application Number:
JP21314692A
Publication Date:
August 07, 2000
Filing Date:
July 02, 1992
Export Citation:
Assignee:
Merck Japan Co., Ltd.
International Classes:
C08K9/02; C08L101/00; C09C1/00; C09C1/36; C09C1/40; C09C3/06; (IPC1-7): C09C1/40; C08K9/02; C08L101/00; C09C3/06
Domestic Patent References:
| JP1158077A |
Attorney, Agent or Firm:
Kiyokazu Kazuwa (1 person outside)