Patent ID: 11859061
Assignee: CHROMA COLOR CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 8:
9. A solid, biodegradable concentrate carrier system for use in thermoplastic or thermosetting resin formulations, the concentrate comprising:
an acrylate copolymer comprising less than 20 wt. % of the concentrate carrier system;
one or more aliphatic linear polyester elements selected from polycaprolactone, polyhydroxyalkonates, polyglycolide, polylactide, poly(butylene succinate), and any of the foregoing optionally having one or more functional groups pendant thereto, said aliphatic linear polyester element(s) cumulatively comprising less than 55 wt. % of the concentrate carrier system;
an additive package comprising a remainder of the concentrate, said additive package including at least one selected from: a plasticizer, a colorant, a property enhancer, and a non-property fillers; and
wherein the concentrate carrier system 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.