Title:
【発明の名称】樹脂用耐老化性鉄系着色剤
Document Type and Number:
Japanese Patent JP2901697
Kind Code:
B2
Abstract:
An iron oxide coloring agent suitable for use in a resin, which agent comprises plate-like hematite particles having a coating of amorphous silicon dioxide or hydrated alumina, said coating containing silicon dioxide fine particles or hydrated alumina fine particles, said fine particles having an average particle diameter of from 5 to 100 nm (50 to 1,000 ANGSTROM ).
Inventors:
KATAMOTO TSUTOMU
Application Number:
JP10432290A
Publication Date:
June 07, 1999
Filing Date:
April 18, 1990
Export Citation:
Assignee:
TODA KOGYO KK
International Classes:
C08K3/22; C08K9/00; C08K9/02; C08L27/04; C08L101/00; C09C1/24; (IPC1-7): C08L101/00; C08K3/22; C08K9/02; C08L27/04
Domestic Patent References:
| JP1263157A | ||||
| JP5334827A |