HIGH CLARITY AND DUCTILE MOLDING COMPOSITION COMPRISING A SMMA COPOLYMER AND A SBC-BLOCK COPOLYMER

    公开(公告)号:WO2022263445A1

    公开(公告)日:2022-12-22

    申请号:PCT/EP2022/066170

    申请日:2022-06-14

    Abstract: High clarity and ductile molding composition comprising: (a) 71 to 90 wt.-% random copolymer made from 44 to 64 wt.-% vinylaromatic monomer and 36 to 56 wt.-%,methyl methacrylate; (b) 10 to 29 wt vinylaromatic-diene block copolymer comprising at least two hard blocks S made from vinylaromatic monomers and at least one soft block B made from dienes and/or at least one soft block B/S made from dienes and vinylaromatic monomers; where the proportion of the diene is from 47 to 67 wt.-%; and (c) 0 to 5 wt.-% additives and/or processing aids (c), have high hardness, heat resistance, and stiffness and can be used for home appliances.

    HIGH DARKNESS AND HIGH GLOSS DIMENSIONALLY STABLE THERMOPLASTIC SMMA MOLDING COMPOSITION

    公开(公告)号:WO2021198528A1

    公开(公告)日:2021-10-07

    申请号:PCT/EP2021/058870

    申请日:2021-04-06

    Abstract: The invention relates to thermoplastic molding composition, comprising the components (a), (b) and (c) and optionally (d), comprising (a) 90 to 99.5% by weight of at least one copolymer (a), which comprises 30 to 90 % by weight of vinylaromatic monomer (a1), and 10 to 70 % by weight of methyl methacrylate (a2); (b) 0.1 to 1.5% by weight of at least two dye components (b1) and (b2) of different color families, soluble in the thermoplastic molding composition; (c) 0.01 to 5% by weight of carbon black pigment (c) and (d) optionally up to 5% by weight of one or more further additives (d), where the thermoplastic composition has a deep-black color with L*-values from 0.5 to 2.0 as measured with 45°/0° geometry, a high gloss of more than 93.0 and wherein the total weight of components (a) to (d) give a total of 100 percent by weight.

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