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:
May. 04, 1976
Filed:
Mar. 19, 1975
Applicant:
Inventor:
Yves Vaginay, Lyon, FR;
Assignee:
Rhone-Poulenc-Textile, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260860 ; 260 / ;
Abstract
Polyesters having improved affinity for acid dyes are produced by incorporation, in the polyester-forming dicarboxylic acid and dihydric alcohols, quaternary ammonium compounds of the formula ##EQU1## wherein the R's represent aliphatic, cycloaliphatic or aromatic radicals, at least one R being substituted by at least a group capable of forming ester bonds with the recurring polyester units, at least two R's being capable of forming between them a ring which may contain quaternizable nitrogen atoms; and where: