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:
Jul. 12, 1983
Filed:
Jun. 03, 1981
Applicant:
Inventors:
Assignee:
Teitin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; C08F / ;
U.S. Cl.
CPC ...
428220 ; 55 16 ; 55158 ; 156246 ; 2105002 ; 264298 ; 428333 ; 428447 ; 526279 ;
Abstract
An ultrathin solid membrane is composed substantially of a silicon-containing copolymer consisting substantially of recurring units derived from a silicon-containing allyl monomer and an ethylenically unsaturated monomer and/or a diene monomer. The ultrathin solid membrane is useful for obtaining a specified gas, such as oxygen, in a concentrated state, from a mixture of two or more gases, such as air.