Polymeric particles and processes for preparation of polymeric particles that involve molding

摘要

Polymeric particles having a size of about 0.1 to about 100 microns comprising at least two different phase separated polymers, at least one pigment, and at least one additive, where the pigment and additive are distributed within the phase separated polymers. Also disclosed are methods for preparing polymeric particles comprising phase separated polymers that comprise additives and pigments, wherein the methods involve molding.

主权项

1. A method for preparing a polymeric particle comprising:
(a) providing a first composition comprising at least two different, compatible, liquid polymers, at least one of which is crosslinkable, at least one pigment, and at least one additive, (b) subjecting the first liquid composition to a temperature change that causes the compatible liquid polymers to become incompatible liquid polymers resulting in the formation of a second composition comprising an at least two phase morphology, (c) molding the second composition in a mold to form molded polymer particles, and (d) crosslinking the molded polymer particles, while in the mold; wherein the molded polymer particles have a particle size of about 0.1 to about 100 microns.