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. 24, 1977
Filed:
Jan. 17, 1975
Applicant:
Inventor:
Yves Vaginay, Lyon, FR;
Assignee:
Rhone-Poulenc-Textile, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06P / ; C08G / ;
U.S. Cl.
CPC ...
8-4 ; 8 17 ; 81155 ; 8168 / ; 260 / ;
Abstract
Articles made from polyesteramines such as filaments, fibers and molded products are dyed by treating the article with an alkylating agent in the form of a solution or emulsion in an amount of at least 1.5% by weight based on the weight of the article and at a temperature higher than room temperature for at least 15 minutes. The article is then dyed with a conventional anionic dye and preferably these two steps are carried out simultaneously.