US 11,859,061 B2
Colorant and additive concentrate carrier system with efficacy over a wide range of polymeric processing temperatures
Paul Legnetti, Lambertville, NJ (US); Eric D. Laird, Ewing, NJ (US); Luis Pacheco, Lambertville, NJ (US); Ronald M. Harris, Cumming, GA (US); and Jeffrey S. Smink, Rockwell, NC (US)
Assigned to CHROMA COLOR CORPORATION, Lambertville, NJ (US)
Filed by CHROMA COLOR CORPORATION, Lambertville, NJ (US)
Filed on Jul. 6, 2021, as Appl. No. 17/367,758.
Application 17/367,758 is a continuation in part of application No. 16/354,986, filed on Mar. 15, 2019, granted, now 11,053,361, issued on Jul. 6, 2021.
Prior Publication US 2021/0332197 A1, Oct. 28, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C08J 3/22 (2006.01); C08L 67/04 (2006.01); C08L 33/12 (2006.01); C08L 67/02 (2006.01)
CPC C08J 3/226 (2013.01) [C08L 33/12 (2013.01); C08L 67/02 (2013.01); C08L 67/04 (2013.01); C08J 2300/22 (2013.01); C08J 2300/24 (2013.01); C08L 2201/06 (2013.01)] 19 Claims
 
1. A concentrate and carrier system for use in thermoplastic or thermosetting resin formulations, the concentrate comprising:
an acrylate copolymer comprising at least 20 wt. % of the concentrate;
a ring-opened cyclic ester or ether derivative comprising at least one of: polyhydroxyalkonates, polyglycolide, polylactide, poly(butylene succinate), and any of the foregoing optionally having one or more functional groups pendant thereto, said ring-opened cyclic ester or ether derivative comprising less than 30 wt. % of the concentrate;
an additive package comprising a remainder of the concentrate, said additive package including at least one selected from: colorants, property enhancers, and non-property fillers; and
wherein the concentrate retains a solid form at ambient temperatures and the additive package remains viable in low melting resin systems and engineered resin systems at processing temperatures ranging from 90° C. or less up to at least 200° C.