Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1983-08-02
1985-11-19
Lesmes, George F.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
2523132, 2523156, 2523157, 423338, C01B 3316
Patent
active
045542112
ABSTRACT:
A spherical micro-porous silica gel, which is characterized by having a mean diameter of 3-20 .mu.m, a bulk density of 0.28-0.41 g/cm.sup.3, a pore size of 18,000-100,000 and a specific surface area of 1,000-1,400 m.sup.2 /g and a production process therefor is characterized by employing (a) an aqueous solution containing SiO.sub.2 in which the primary particle diameter is not larger than 6 nm and the molar ratio of SiO.sub.2 to Na.sub.2 O is not larger than 5.5, (b) either stearic acid or a mixture of stearic acid and a non-ionic surface active agent of which HLB ranges from 3.5 to 6.0 as an emulsifier and (c) an organic acid as a gelling agent.
REFERENCES:
patent: 3527563 (1970-09-01), Shanklin
patent: 3634288 (1969-04-01), Youngs
patent: 3855172 (1974-12-01), Iler et al.
patent: 4006175 (1977-02-01), Termin et al.
patent: 4090887 (1978-05-01), Marquisee et al.
patent: 4230679 (1980-09-01), Mahler et al.
patent: 4302364 (1981-11-01), Gosset et al.
patent: 4379755 (1983-04-01), Yamada et al.
Arika Junji
Shiota Eiji
Yamamoto Kazuaki
Atkinson William M.
Lesmes George F.
Toyo Soda Manufacturing Co. Ltd.
LandOfFree
Spherical micro-porous silica gel and a production process there does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spherical micro-porous silica gel and a production process there, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spherical micro-porous silica gel and a production process there will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-83509