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. 14, 1976
Filed:
Sep. 16, 1974
Applicant:
Inventors:
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
264122 ; 1621 / ; 260 / ; 260 / ; 264126 ; 264234 ;
Abstract
A cation exchanger in paper-like or felt-like form is obtained by making a fibrous sheet from a blend of polyethylene fibers into which sulfonic groups have been introduced with 0.1 to 50% by weight of thermoplastic resin fibers and heating the sheet at the softening temperature of said thermoplastic resin or higher temperatures. This cation exchanger is useful in softening or desalination of raw water, separation and recovery of various metals, and adsorption of basic dyestuffs and cationic dyestuffs.
Quick Actions:
Sano, Takezo. (1976). Method for manufacturing novel cation exchangers (U.S. Patent No. 3997644). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3997644
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile