Process for producing fine flaky alumina particles and alumina-b

Details Process for producing fine flaky alumina particles and alumina-b Process for producing fine flaky alumina particles and alumina-b

1995-06-16

1996-12-24

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Aluminum compound containing

1061721, 524437, 501127, 501153, C04B 3510

Patent

active

055870104

ABSTRACT:
The present invention provides a process for producing fine flaky alumina particles suitable as a raw material for ceramics, a pigment for paint and etc., wherein aluminum hydroxide or alumina hydrate having a particle size regulated to the order of submicron is subjected to a hydrothermal treatment in water or an aqueous alkali solution at a temperature of 350.degree. C. or above under a pressure of 200 kg/cm.sup.2 or below. The present invention further provides an alumina-based plastic material which is produced by kneading the aforesaid fine flaky particles with an organic water holding material and water. Methylcellulose, polyvinyl alcohol, carboxymethylcellulose, polyethylene glycol, etc. are preferably used as the organic water holding agent. The alumina-based plastic material has a high plasticity, so that there is no need of using a large amount of a binder. Thus a dense molded article having stable properties can be prepared.

REFERENCES:
patent: 4985380 (1991-01-01), Douden
patent: 5277702 (1994-01-01), Thibault et al.
patent: 5306680 (1994-04-01), Fukuda
patent: 5401703 (1995-03-01), Fukuda
patent: 5403795 (1995-04-01), Koyama et al.

Affiliated with

Also associated with

Rating

Process for producing fine flaky alumina particles and alumina-b does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing fine flaky alumina particles and alumina-b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing fine flaky alumina particles and alumina-b will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1176216