Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Reexamination Certificate
2006-04-04
2006-04-04
Wood, Elizabeth D. (Department: 1755)
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
C106S476000
Reexamination Certificate
active
07022176
ABSTRACT:
The present invention provides a carbon black for coloring cement excelling in dispersibility in cement slurry, exhibiting superior adhesion to a cement matrix, and excelling in coloring characteristics and strength, and a method for coloring a cement-formed product using the carbon black. The carbon black for coloring cement is a carbon black in which humic acids are adsorbed on the surface by a surface treatment using an aqueous solution in which the humic acids are dissolved. The carbon black is preferably a carbon black on which humic acids are adsorbed by wet-granulation and drying using an aqueous solution in which the humic acids are dissolved as granulation water. The coloring method includes adding and mixing a water suspension in which carbon black, on which the humic acids are adsorbed, is dispersed in water with cement slurry, or directly adding and mixing carbon black on which the humic acids are adsorbed with the cement slurry, thereby coloring a cement-formed product.
REFERENCES:
patent: 3-263471 (1991-11-01), None
English translation of Japanese Published Unexamined Patent Publication S59-100168, Tsubushi et al., Jun. 9, 1984.
Ikeshima Toshiji
Inoue Daisuke
Sakurai Hidetake
Wake Masato
Flynn ,Thiel, Boutell & Tanis, P.C.
Telnite Co., Ltd.
Tokai Carbon Co., Ltd.
Tokyo Zairyo Co., Ltd.
Toteku Co., Ltd.
LandOfFree
Carbon black for coloring cement and method for coloring... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Carbon black for coloring cement and method for coloring..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon black for coloring cement and method for coloring... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3550225