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.:

US 6942706 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 13, 2005

Filed:

Mar. 23, 2004
Applicants:

Stephen M. Birkinshaw, Collingham, GB;

Samit N. Chevli, Wilmington, DE (US);

Michael O. Hunt, Jr., Wilmington, DE (US);

Lee D. Jones, Pontefract, GB;

David M. Lewis, Otley, GB;

David J. Marfell, Glos, GB;

Inventors:

Stephen M. Birkinshaw, Collingham, GB;

Samit N. Chevli, Wilmington, DE (US);

Michael O. Hunt, Jr., Wilmington, DE (US);

Lee D. Jones, Pontefract, GB;

David M. Lewis, Otley, GB;

David J. Marfell, Glos, GB;

Assignee:

Invista North America S.a.r.l., Wilmington, DE (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P001/22 ; D06P001/653 ;
U.S. Cl.
CPC ...
Abstract

A process for dyeing certain textile fibers, utilizing vat acid dyeing and specific additional (second) reducing agents such as α-hydroxyalkylsulfinic acids, their salts and 1,2,4-trithiolane, resulting in excellent depth of shade and washfastness, is provided.


Find Patent Forward Citations

Birkinshaw, Stephen. (2005). Vat acid dyeing of textile fibers (U.S. Patent No. 6942706). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6942706

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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