VERFAHREN ZUR HERSTELLUNG THERMOPLASTISCHER FORMMASSEN
    1.
    发明授权
    VERFAHREN ZUR HERSTELLUNG THERMOPLASTISCHER FORMMASSEN 有权
    用于生产热塑性模塑料

    公开(公告)号:EP1611202B1

    公开(公告)日:2011-10-12

    申请号:EP04721846.6

    申请日:2004-03-19

    Applicant: BASF SE

    Abstract: The invention relates a method for producing, by mixing the individual components, thermoplastic molding materials which contain A) a thermoplastic polyamide, B) a composition containing b1) a graft polymer, containing a rubber as the graft basis and a graft coat based on unsaturated monomers, and b2) a matrix polymer, and C) a rubber-free copolymer containing c1) at least 30 % by weight of units that are derived from a vinyl-aromatic monomer, based on the total weight of all units that are contained in C), c2) units that are derived from a monomer that has a functional group that is reactive with the terminal groups of the polyamide A), and c3) units that are derived from a monomer that has no functional groups that are reactive with the terminal groups of the polyamide A). The method is characterized by producing in a first step a graft copolymer D) containing the total quantity of component C) and a partial quantity of component A) and mixing in a second step the graft copolymer D) with the remaining components and with the remaining quantity of components A).

    THERMOPLASTISCHE FORMMASSEN MIT VERBESSERTEN OPTISCHEN EIGENSCHAFTEN

    公开(公告)号:EP1937772B1

    公开(公告)日:2008-12-17

    申请号:EP06793774.8

    申请日:2006-09-25

    Applicant: BASF SE

    Abstract: The present invention relates to thermoplastic plastic moulding compositions, comprising a mixture composed of (A) from 30 to 69% by weight, based on the entirety of components (A), (B) and (C), of a methyl methacrylate polymer, (B) from 30 to 69% by weight, based on the entirety of components (A), (B) and (C), of a copolymer, obtainable via polymerization of a vinylaromatic monomer and of a vinyl cyanide, and (C) from 1 to 40% by weight, based on the entirety of components (A), (B) and (C), of a graft copolymer, obtainable from (C1) from 60 to 90% by weight, based on (C), of an agglomerated core based on a 1,3-diene, (C2) from 5 to 20% by weight, based on (C), of a first graft shell composed of a vinylaromatic monomer, of an alkyl methacrylate, and, if appropriate, of a crosslinking monomer, and (C3) from 5 to 20% by weight, based on (C), of a second graft shell composed of an alkyl (meth)acrylate polymer, with the proviso that the quantitative ratio of (C2) to (C3) is in the range from 2:1 to 1:2, and it is inventively significant here that the core (C1) has a monomodal particle size distribution, the average particle size D50 of the core (C1) (determined by the method mentioned in the description) is in the range from 300 to 400 nm, and the difference between the refractive index (nD-C) of the entire component (C) and the refractive index (nD-AB) of the entire matrix of components (A) and (B) is in the range from 0.003 to 0.008, each of the refractive indices being measured by the methods mentioned in the description, and also to processes for preparation of these moulding compositions, to their use, and to the mouldings obtainable therefrom.

    Abstract translation: 本发明涉及热塑性塑料模塑组合物,其包含由(A)以组分(A),(B)和(C)的总量计为30-69重量%的甲基丙烯酸甲酯聚合物, (B)基于组分(A),(B)和(C)的总量,30-69重量%的可通过乙烯基芳族单体和乙烯基氰聚合获得的共聚物,和(C) 基于(C),(A),(B)和(C)的总量,1-40重量%的由(C1)获得的接枝共聚物,60-90重量% 的基于1,3-二烯的聚结核,(C2)基于(C)计5-20重量%的由乙烯基芳族单体,甲基丙烯酸烷基酯组成的第一接枝壳,以及合适的话 和(C3)基于(C)的5-20重量%的由(甲基)丙烯酸烷基酯聚合物组成的第二接枝壳,条件是(C2) 到(C3)在fr范围内 在本发明中重要的是芯(C1)具有单峰粒度分布,芯(C1)的平均粒度D50(通过描述中提及的方法测定)是 在300-400nm的范围内,并且组分(C)的整个折射率(nD-C)和组分(A)和(B)的整个基质的折射率(nD-AB) 在0.003至0.008的范围内,每种折射率均通过说明书中提及的方法测量,并且还涉及用于制备这些模塑组合物的方法,它们的用途以及由其获得的模塑品。

    VERFAHREN ZUR HERSTELLUNG VON ANHYDRIDHALTIGEN VINYLAROMAT-VINYLCYANID-COPOLYMEREN MIT VERRINGERTEM SCHMUTZPARTIKELGEHALT
    4.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON ANHYDRIDHALTIGEN VINYLAROMAT-VINYLCYANID-COPOLYMEREN MIT VERRINGERTEM SCHMUTZPARTIKELGEHALT 有权
    用于生产酐的乙烯基芳族 - 乙烯基氰共聚物REDUCED DIRT颗粒含量

    公开(公告)号:EP2493939A1

    公开(公告)日:2012-09-05

    申请号:EP10768248.6

    申请日:2010-10-25

    Applicant: BASF SE

    CPC classification number: C09D125/14 C08F212/10 C08F220/44 C08F222/08

    Abstract: The present invention relates to a method for producing copolymers A) having a reduced dirt particle content, containing 49.2 to 93.2% by weight of structural units derived from one or more vinyl aromatic monomers (component A1)), 6 to 50% by weight of structural units derived from one or more vinyl cyanides (component A2)), 0.8 to 7% by weight of structural units derived from one or more dicarboxylic acid anhydrides (component A3)), and 0 to 25% by weight of structural units derived from further copolymerizable monomers (component A4)), wherein each weight percent is based on the total weight of the structural units derived from components A1), A2), A3), and A4) and together are 100% by weight, by means of mass or solution polymerization, wherein it is essential to the invention that the mathematical product of the weight percent of the structural units of the copolymer A) derived from the component A2) and of the weight percent of the structural units of the copolymer A) derived from the component A3) ranges between 40% by weight and 65% by weight. The present invention further relates to the copolymers A), to thermoplastic molding compounds containing the copolymer A), to the use of the copolymers A) and of the thermoplastic molding compounds, and to the molded bodies, films, fibers, and foams that can be obtained from the copolymers A) and the thermoplastic molding compounds.

    THERMOPLASTISCHE FORMMASSEN MIT VERBESSERTEN OPTISCHEN EIGENSCHAFTEN
    6.
    发明公开
    THERMOPLASTISCHE FORMMASSEN MIT VERBESSERTEN OPTISCHEN EIGENSCHAFTEN 有权
    具有改进的光学性能的热塑性模塑材料

    公开(公告)号:EP1937772A1

    公开(公告)日:2008-07-02

    申请号:EP06793774.8

    申请日:2006-09-25

    Applicant: BASF SE

    Abstract: The present invention relates to thermoplastic plastic moulding compositions, comprising a mixture composed of (A) from 30 to 69% by weight, based on the entirety of components (A), (B) and (C), of a methyl methacrylate polymer, (B) from 30 to 69% by weight, based on the entirety of components (A), (B) and (C), of a copolymer, obtainable via polymerization of a vinylaromatic monomer and of a vinyl cyanide, and (C) from 1 to 40% by weight, based on the entirety of components (A), (B) and (C), of a graft copolymer, obtainable from (C1) from 60 to 90% by weight, based on (C), of an agglomerated core based on a 1,3-diene, (C2) from 5 to 20% by weight, based on (C), of a first graft shell composed of a vinylaromatic monomer, of an alkyl methacrylate, and, if appropriate, of a crosslinking monomer, and (C3) from 5 to 20% by weight, based on (C), of a second graft shell composed of an alkyl (meth)acrylate polymer, with the proviso that the quantitative ratio of (C2) to (C3) is in the range from 2:1 to 1:2, and it is inventively significant here that the core (C1) has a monomodal particle size distribution, the average particle size D50 of the core (C1) (determined by the method mentioned in the description) is in the range from 300 to 400 nm, and the difference between the refractive index (nD-C) of the entire component (C) and the refractive index (nD-AB) of the entire matrix of components (A) and (B) is in the range from 0.003 to 0.008, each of the refractive indices being measured by the methods mentioned in the description, and also to processes for preparation of these moulding compositions, to their use, and to the mouldings obtainable therefrom.

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