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:
Jun. 30, 2015
Filed:
Nov. 01, 2011
Eduardo Torres, Boiling Springs, SC (US);
Xiaoyong Michael Hong, Greer, SC (US);
Robert L Mahaffey, Jr., Spartanburg, SC (US);
Dominick J Valenti, Moore, SC (US);
Gregory S Miracle, Hamilton, OH (US);
Eduardo Torres, Boiling Springs, SC (US);
Xiaoyong Michael Hong, Greer, SC (US);
Robert L Mahaffey, Jr., Spartanburg, SC (US);
Dominick J Valenti, Moore, SC (US);
Gregory S Miracle, Hamilton, OH (US);
MILLIKEN & COMPANY, Spartanburg, SC (US);
Abstract
This application relates to thiophene azo dyes for use as hueing agents, laundry care compositions comprising such thiophene azo dyes, processes for making such thiophene azo dyes, and laundry care compositions and methods of using the same. The thiophene azo dyes contain a formally charged moiety and are generally comprised of at least two components: at least one chromophore component and at least one polymeric component. Suitable chromophore components generally fluoresce blue, red, violet, or purple color when exposed to ultraviolet light, or they may absorb light to reflect these same shades. These thiophene azo dyes are advantageous in providing a hueing effect, for example, a whitening effect to fabrics, while not building up over time and causing undesirable blue discoloration to the treated fabrics. The thiophene azo dyes are also generally stable to bleaching agents used in laundry care compositions.