The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 1993
Filed:
Aug. 06, 1990
Applicant:
Inventors:
Margaret K Faber, Corning, NY (US);
John H Hudgins, Corning, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
428116 ; 55523 ; 156 89 ; 428188 ; 502527 ;
Abstract
The invention features porous substrates or supports fabricated from titania powder(s) having mean particle size of at least 7 .mu.m. The titania substrates are useful for supporting porous membranes for separation and filtration processes. The titania powders provide supports with mean pore sizes in the approximate range of 3 to 15 .mu.m, a sharp or narrow pore size distribution, total Hg porosities of at least about 30%, and MOR strengths of 50 up to 280 or more Kg/cm.sup.2. A combination of several different titania powders produced the best results. Titania membranes can be formed on the titania supports.