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:
Dec. 15, 2020
Filed:
Jan. 26, 2017
Agc Inc., Chiyoda-ku, JP;
Takayuki Kaneko, Chiyoda-ku, JP;
Hiromitsu Kusano, Chiyoda-ku, JP;
Yasushi Yamaki, Chiyoda-ku, JP;
Takuo Nishio, Chiyoda-ku, JP;
AGC Inc., Chiyoda-ku, JP;
Abstract
To provide an ion exchange membrane for alkali chloride electrolysis, which has low membrane resistance and which reduces the electrolysis voltage during alkali chloride electrolysis, even if the spacing between reinforcing yarns is made narrow to increase the membrane strength. This ion exchange membranefor alkali chloride electrolysis comprises a fluoropolymer containing ion exchange groups; a reinforcing material embedded in the fluoropolymer and formed of reinforcing yarns and optionally contained sacrificial yarns; and elution holes of the sacrificial yarns present between the reinforcing yarns, wherein in a cross section perpendicular to the length direction of the reinforcing yarns forming the reinforcing material, the average distance (d1) from the center of a reinforcing yarnto the center of the adjacent reinforcing yarnis from 750 to 1,000 μm, the total area (S) obtained by adding the cross-sectional area of an elution holeand the cross-sectional area of a sacrificial yarnremaining in the elution holeis from 500 to 5,000 μmper elution hole, and the number n of elution holesbetween adjacent reinforcing yarnsis from 4 to 6.