Patent ID: 6096822
Filing Date: 2000-08-01
Classification: C08J

Abstract:
A composition comprisinga) a solid mixture of at least one pigment, and at least one pigment dispersing agent comprising a polyester or polyamide, wherein the pigment dispersing agent is the reaction product of at least one mono- or di-cyclic aromatic diacid and at least one di- or tri-functional aliphatic organic compound having at least 2 carbon atoms wherein each functionality is selected from the group consisting of alcohols and amines, which pigment dispersing agent has a Brookfield viscosity of from about 2,000 cps to about 500,000 cps at 140.degree. C., and a melting temperature of up to about 150.degree. C., andb) at least one host polymer selected from the group consisting of polyesters, polycarbonates, polyamides, polystyrene homopolymers, styrene containing copolymers, and mixtures thereof; andwherein when the pigment dispersing agent is a polyester, the host polymer is not a polyester and wherein when the pigment dispersing agent is a polyamide, the host polymer is not a polyamide.