Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Patent
1995-04-21
1996-09-24
Lewis, Michael
Chemistry of inorganic compounds
Silicon or compound thereof
Oxygen containing
423608, 501 12, 501 80, 501102, 501134, 502233, C01B 3312
Patent
active
055588492
ABSTRACT:
A process for making inorganic gels by reaction of tetraalkoxy orthosilicates, tetraalkoxy titanates and tetraalkoxy zirconates with strong carboxylic acids. Water need not be present initially as a reactant. Optically clear, very small pore size, narrow pore size distribution, and high specific area inorganic gels useful for abrasion-resistant coatings, optical applications, catalyst or enzyme support, gas separation, or chromatography packing are thus produced.
REFERENCES:
patent: 4619908 (1986-10-01), Cheng et al.
patent: 4667417 (1987-05-01), Graser et al.
patent: 4765818 (1988-08-01), Che et al.
patent: 4888309 (1989-12-01), Araya
patent: 4894357 (1990-01-01), Hupe et al.
patent: 4941993 (1990-07-01), Strehlow et al.
patent: 4950779 (1990-08-01), Wengrovius et al.
patent: 4954327 (1990-09-01), Blount
patent: 4961767 (1990-10-01), Schermerhorn et al.
patent: 5017354 (1991-05-01), Simms et al.
patent: 5028568 (1991-07-01), Anderson et al.
patent: 5076980 (1991-12-01), Nogues et al.
patent: 5215943 (1993-06-01), Anderson et al.
patent: 5264197 (1993-11-01), Wang et al.
patent: 5441718 (1995-08-01), Sharp et al.
Sakka, S. et al, "Various Factors Affecting the Conversion of Silicon Alkoxide Solutions to Gels", Ultrastructure Processing of Advanced Ceramics, Wiley-Interscience Publication, John Wiley & Sons, 159-171 (1988).
Coltrain, B. K. et al, "Effect of Hydrogen Ion Concentration on Gelation of Tetrafunctional Silicate Sol-Gel Systems", Ultrastructure Processing of Advanced Materials, 69-76 (1992).
Gilman, H. et al, "The Preparation of Some Chlorinated Aryl Silanes for the Examination of Their Insecticidal Properties", J. Am. Chem. Soc., 73, 968-970 (1951).
Pope, E. J. A. et al, "Sol-Gel Processing of Silica", J. of Non-Crystalline Solids, 87, 185-198 (1986).
Zorya, L. N. et al, Chemical Abstracts, 112(6), Abstract No. 47465b, p. 47472, May 2, 1990.
Mizukami, F. et al, Chemical Abstracts, 105(10), Abstract No. 84076b, p. 332, Aug. 9, 1986.
Chemical Abstracts, 108(2), Abstract No. 8321z, p. 131, Nov. 1, 1988.
E. I. Du Pont de Nemours and Company
Harding Amy M.
Lewis Michael
LandOfFree
Process for making inorganic gels 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 making inorganic gels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making inorganic gels will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1927069