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:
Jan. 04, 1977
Filed:
Mar. 19, 1975
Murty S Tanikella, Newark, DE (US);
Odorich VON Susani, Geneva, CH;
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
Textile fibers or filaments prepared from polyesters modified with a minor proportion of 2,2,6,6-tetramethylpiperidine groups attached through oxyalkylene linkages to ends of linear polyester polymer chains have improved dyeability with acid dyes. A variety of alkylene oxide condensates of tetramethylpiperidine compounds are shown to have adequate heat-stability and compatibility for incorporating in polyesters under conditions of condensation polymerization to form desirable products.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile