US 11,718,814 B2
Composition comprising hueing agent
Wesley A. Freund, Simpsonville, SC (US); Richard Lawson, Greer, SC (US); Sanjeev K. Dey, Spartanburg, SC (US); and Nolan Peevy, Roebuck, SC (US)
Assigned to Milliken & Company, Spartanburg, SC (US)
Filed by Milliken & Company, Spartanburg, SC (US)
Filed on Jan. 25, 2021, as Appl. No. 17/156,805.
Claims priority of provisional application 62/983,873, filed on Mar. 2, 2020.
Prior Publication US 2021/0277334 A1, Sep. 9, 2021
Int. Cl. C11D 3/40 (2006.01); C11D 3/42 (2006.01); C11D 11/00 (2006.01); C11D 17/04 (2006.01); C11D 17/06 (2006.01); D06M 15/63 (2006.01); C11D 3/34 (2006.01)
CPC C11D 3/42 (2013.01) [C11D 3/349 (2013.01); C11D 11/0017 (2013.01); C11D 17/045 (2013.01); C11D 17/06 (2013.01); D06M 15/63 (2013.01)] 15 Claims
 
1. A laundry care composition comprising: (1) a laundry care ingredient; (2) from 0.0001 wt % to 1.0 wt % of a polymeric thiophene hueing agent having the structure of Formula III:

OG Complex Work Unit Chemistry
and
(3) from 0.0001 wt % to 1.0 wt % of a polymeric thiophene hueing agent having the structure of Formula Y:

OG Complex Work Unit Chemistry
wherein the composition imparts a desired hue to a cotton textile article with a relative hue angle in the range from 282-299; or
wherein the composition imparts a desired hue to a polyester textile article with a relative hue angle in the range from 272-281.