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:
Sep. 07, 1993
Filed:
Mar. 06, 1991
Applicant:
Inventors:
Eugene J Blanchard, Metairie, LA (US);
Robert M Reinhardt, New Orleans, LA (US);
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06M / ; D06M / ; D06M / ;
U.S. Cl.
CPC ...
8196 ; 81161 ; 8188 ; 8189 ; 8190 ; 8680 ; 8918 ; 8930 ;
Abstract
Anionically dyeable smooth-dry crosslinked cellulose is produced by modifying cellulose-containing material with the combination of a hydroxyalkylamine or a hydroxyalkyl quaternary ammonium salt, a methylolamide crosslinking agent and one or more reactively inert glycol ether swelling agents. The reaction is typically catalyzed with salts such as zinc nitrate or magnesium chloride used either alone or in conjunction with citric acid. Types of usable anionic dyes include acid, direct, and reactive dyes. The cellulose-containing material may be in the form of fibers, threads, linters, roving, fabrics, yarns, slivers and paper.