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:
Nov. 14, 1989
Filed:
Nov. 10, 1988
Applicant:
Inventor:
Joseph P Barone, Westford, MA (US);
Assignee:
Millipore Corporation, Bedford, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210639 ; 210490 ; 21050025 ; 427245 ;
Abstract
Composite inorganic microporous or ultrafiltration membranes are formed by depositing a film of inorganic particles on a porous inorganic substrate. In a second step, the particles comprising the film are bonded or joined together by passing a supersaturated solution of the particle composition through the particle film, thereby to effect crystal growth on the particles, and to find tune the film pore size. The entire process is conducted at low temperatures, generally less than 90.degree. C.