Temperature-resistant black pigment, a process for its productio

Details Temperature-resistant black pigment, a process for its productio Temperature-resistant black pigment, a process for its productio

1992-06-18

1993-12-14

Group, Karl

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106459, C09C 122

Patent

active

052698416

ABSTRACT:
A temperature-resistant black pigment which is a mixed oxide of manganese and iron with the structure of hematite and having a manganese content of 3 to 35% by weight, and with absolute color values in colorimetric testing in paint systems, expressed in CIELAB units, in the lightened form (Blend of 10 parts titaniumdioxide and 1 part of black pigment) of 60 to 70 for L*, -0.5 to 1.9 for a* and -4 to -6.5 for b* useful for coloring autoclave-cured building materials and for pigmenting heat-resistant paint systems is obtained by preparing a precursor material of manganese and iron oxides or hydroxides, which contains the phase with the structure of spinel and calcining that precursor material in an oxidizing atmosphere at 500.degree. to 1,000.degree. C.

REFERENCES:
patent: 3276894 (1966-10-01), Hund et al.
patent: 3615810 (1971-10-01), Holznagel et al.
patent: 3655418 (1972-04-01), Hardy et al.
patent: 3822210 (1974-07-01), Iwase et al.
patent: 4145229 (1979-03-01), Ferrero et al.
patent: 4680130 (1987-07-01), Hibst
Database WPIL, Derwent Publications Ltd., AN 92-214199 & JP-A-4 144 924 (Toda Kogyo Corp). Oct. 1990.
Database WPIL, Derwent Publications Ltd., AN 88-117465 & SU-A-1 337 392 (Sidorova). Mar. 1985.

Affiliated with

Also associated with

Rating

Temperature-resistant black pigment, a process for its productio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature-resistant black pigment, a process for its productio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature-resistant black pigment, a process for its productio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1701655