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:
Mar. 12, 2013
Filed:
Dec. 26, 2007
Junya Ishida, Saitama, JP;
Katsunori Iwase, Kariya, JP;
Akira Yamamoto, Annaka, JP;
Masahiko Minemura, Annaka, JP;
Junya Ishida, Saitama, JP;
Katsunori Iwase, Kariya, JP;
Akira Yamamoto, Annaka, JP;
Masahiko Minemura, Annaka, JP;
Shin-Etsu Polymer Co., Ltd., Tokyo, JP;
DENSO CORPORATION, Aichi, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
A permselective material has a polymer having an organosiloxane skeleton and containing a dispersed solid additive. When oxygen and nitrogen are passed through a membrane having the permselective material, the relation between the permeability coefficients [cm·cm·sec·cm·cmHg] of oxygen and nitrogen at a temperature of 23±2° C. under a pressure difference of 1.05 atm to 1.20 atm through the membrane is expressed by Formula (1): where P(O) denotes the permeability coefficient of oxygen, while P(N) denotes the permeability coefficient of nitrogen.