C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 297/00 (2006.01) C08F 279/06 (2006.01) C08F 285/00 (2006.01) C08L 9/06 (2006.01) C08L 27/06 (2006.01) C08L 51/04 (2006.01)
Patent
CA 2076112
(8CP-12,074) ABSTRACT OF THE INVENTION Multi-stage rubber-based MBS resin compositions are provided which include a polymeric substrate stage of a conjugated diolefin-based polymer or copolymer and optional units derived from a cross-linking agent or agents, and at least one polymeric graft stage graft polymerized in the presence of the substrate stage which include monomers of an acrylate, a vinyl aromatic, or a mixture of the e monomers and optional units derived from a cross-linking agent or agents and/or units which serve as a graft-linking agent or agents wherein the weight ratio of acrylate in all graft stages combined to vinyl aromatic in all graft stages combined is at least 1.2:1. Additionally, modified vinyl chloride polymer compositions which include a vinyl chloride polymer or copolymer in combination with an impact modifying, yellowness index improving amount of the multi-stage rubber-based resin compositions above are provided. These modified vinyl chloride polymer compositions have a low yellowness index, good clarity, and desirable impact properties. Finally, processes for the production of the above compositions are provided.
Company General Electric
Craig Wilson And Company
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