Pigmented thermoplastic resins

Details Pigmented thermoplastic resins Pigmented thermoplastic resins

C - Chemistry, Metallurgy

08

L

400/4401

C08L 69/00 (2006.01) C08L 25/02 (2006.01) C08L 67/02 (2006.01)

Patent

CA 1231491

-1- PATENT APPLICATION OF Richard H. Weese, Evan H. Crook, Susan M. Liwak Docket No. 83-38A For: PIGMENTED THERMOPLASTIC RESINS ABSTRACT A polymer blend comprises from about 60 parts to about 99.9 parts by weight of a pigmented thermoplastic resin, which resin is a polyester or a polycarbonate or mixtures thereof, and from about 0.1 part ot about 40 parts of a sequentially produced multi-stage polymer. The multi-stage polymer comprises a polymer core of at least about 10 parts, based on the weight of the multi- stage polymer. The core is polymerized from a styrenic monomer, or a mixture of styrenic monomers. The styrenic monomer of the core comprises at least about 50% by weight of said core. A second monomer may be present and a crosslinking monomer for styrene is present in said core. The second stage of the multi- stage polymer comprises a polymeric soft stage and the outer stage of the multi-stage polymer is a rigid thermoplastic.

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