US 11,655,372 B2
Pigment dispersion
David R. Wallace, Eden Prairie, MN (US); T. Howard Killilea, North Oaks, MN (US); Stephen M. Korenkiewicz, Lake Zurich, IL (US); Thomas J. Melnyk, Greenfield, MN (US); Danny G. Hartinger, Hudson, WI (US); Jason S. Ness, Woodbury, MN (US); Jacob Donlon, Prospect, KY (US); and Mark R. Coward, Jeffersonville, IN (US)
Filed by SWIMC LLC, Cleveland, OH (US)
Filed on Nov. 13, 2020, as Appl. No. 17/97,716.
Application 17/097,716 is a continuation of application No. 15/563,133, granted, now 10,836,910, issued on Nov. 17, 2020, previously published as PCT/US2016/025752, filed on Apr. 1, 2016.
Claims priority of provisional application 62/141,710, filed on Apr. 1, 2015.
Prior Publication US 2021/0062006 A1, Mar. 4, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C09B 67/46 (2006.01); C09D 7/61 (2018.01); C09D 7/20 (2018.01); C09D 7/63 (2018.01)
CPC C09B 67/009 (2013.01) [C09D 7/20 (2018.01); C09D 7/61 (2018.01); C09D 7/63 (2018.01)] 33 Claims
1. A fluid colorant for tinting an unpigmented or pigmented coating composition, the colorant containing less than a continuous film-forming amount of a film-forming polymeric binder, and the colorant comprising: (i) solid pigment particles dispersed in (ii) a nonvolatilizing, reactive liquid diluent having a viscosity less than 1,000 cps and containing at least one molecular species having at least three reactive unsaturated sites and having a molar equivalent weight per reactive unsaturated site that is less than 500 grams (g), wherein the at least one molecular species having at least three reactive unsaturated sites comprises at least 60% by weight of the reactive liquid diluent, and (iii) water, and wherein when the reactive liquid diluent does not by itself stably disperse the pigment particles then the colorant also contains (iv) one or more pigment wetting or dispersing agents.