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    • 5. 发明授权
    • Particulate graft copolymers and thermoplastic molding materials
containing them and having improved colorability
    • 颗粒状接枝共聚物和含有它们的热塑性成型材料并具有改善的着色性
    • US5777036A
    • 1998-07-07
    • US839704
    • 1997-04-15
    • Wolfgang FischerJurgen KochGraham Edmund McKee
    • Wolfgang FischerJurgen KochGraham Edmund McKee
    • C08F285/00C08L25/12C08L51/00C08L51/04
    • C08L25/12C08F285/00C08L51/00
    • Particulate graft copolymers A) are composed of a.sub.1) from 5 to 70% by weight, based on A), of a grafting base having a glass transition temperature of less than 10.degree. C. and based on a.sub.11) from 50 to 99.94% by weight, based on a.sub.1), of at least one alkyl acrylate where the alkyl radical is of 1 to 30 carbon atoms, a.sub.12) from 0 to 49.9% by weight, based on a.sub.1), of a further monounsaturated monomer copolymerizable with b.sub.11) and a.sub.13) from 0.01 to 5% by weight, based on a.sub.1), of polyfunctional crosslinking monomers, a.sub.2) from 20 to 85% by weight, based on A), of a stage polymerized in the presence of component a.sub.1) and comprising a.sub.21) from 95 to 100% by weight, based on a.sub.2), of at least one monomer having a refractive index n.sub.D.sup.20 of more than 1.51 and a.sub.22) from 0 to 5% by weight, based on a.sub.2), of a polyfunctional, crosslinking monomer and a.sub.3) from 10 to 50% by weight, based on A), of at least one further stage polymerized in the presence of the product obtained after the preparation of a.sub.2) and comprising a.sub.31) from 50 to 95% by weight, based on a.sub.3), of a vinylaromatic monomer and a.sub.32) from 5 to 50% by weight, based on a.sub.3), of polar, copolymerizable comonomers selected from the group consisting of acrylonitrile, methacrylonitrile, esters of (meth)acrylic acid where the alkyl radical is of 1 to 20 carbon atoms, maleic anhydride, (meth)acrylamide and/or vinyl alkyl ethers where the alkyl radical is of 1 to 8 carbon atoms.
    • 颗粒状接枝共聚物A)由a1)5-70重量%(基于A)组成的玻璃化转变温度低于10℃的接枝碱和基于a)为50-99.94%的接枝基 至少一种烷基丙烯酸酯,其中烷基为1至30个碳原子的重量,a12)基于a1)0至49.9重量%的另外的单不饱和单体可与b11)和 a13)0.01至5重量%,基于a1)的多官能交联单体,a2)基于A)的20至85重量%的在组分a1)存在下聚合的阶段,并且包含a 21) 基于a2)的至少一种折射率nD20大于1.51的单体和基于a2)的0至5重量%的至少一种单体为95至100重量%的多官能交联单体和 a3)基于A)的10至50重量%的至少一个另外的阶段在制备a2)和co之后获得的产物存在下聚合 令人惊奇的a31)基于a3)为50〜95重量%的乙烯基芳族单体和a32)基于a3)5〜50重量%的极性共聚合共聚单体,其选自丙烯腈,甲基丙烯腈 (甲基)丙烯酸,其中烷基为1-20个碳原子的酯,马来酸酐,(甲基)丙烯酰胺和/或其中烷基为1-8个碳原子的乙烯基烷基醚。
    • 10. 发明授权
    • Preparation of rubber-modified molding materials using peroxy-containing
compounds
    • 使用过氧化合物制备橡胶改性的成型材料
    • US5837777A
    • 1998-11-17
    • US836312
    • 1997-05-12
    • Graham Edmund McKeeRainer MoorsWalter HeckmannHarald LarbigBernhard Rosenau
    • Graham Edmund McKeeRainer MoorsWalter HeckmannHarald LarbigBernhard Rosenau
    • C08L15/00C08F2/18C08F220/12C08F265/04C08F285/00C08L51/00C08F8/00
    • C08F285/00
    • In the preparation of a rubber-modified molding material, in a first stage, a first mixture (A) contains at least one alkyl acrylate or methacrylate (a) of the formula (I) ##STR1## where R.sup.1 is hydrogen or methyl and R.sup.2 is alkyl of 1 to 32 carbon atoms, if required a first monomer (b) having two or more double bonds and, if required, also a second monomer (c) or a plurality thereof is polymerized, preferably with free radicals, to give a rubber (B), in a second stage, a third monomer (d) or a plurality thereof is added to the resulting rubber (B) to form a second mixture (C), whereby the rubber (B) is dissolved or swollen in the third monomer (d), with or with the addition of a solvent, and in a third stage, the second mixture (C) formed is polymerized with free radicals to give the rubber-modified molding material (D), and the mixture is reacted at >120.degree. C., during or after this polymerization, with a compound (e) which contains at least two peroxy groups.
    • PCT No.PCT / EP95 / 04476 Sec。 371日期:1997年5月12日 102(e)日期1997年5月12日PCT提交1995年11月14日PCT公布。 出版物WO96 / 15164 日期1996年5月23日在橡胶改性成型材料的制备中,在第一阶段中,第一混合物(A)含有至少一种式(I)的丙烯酸烷基酯或甲基丙烯酸烷基酯(a)(I)其中 R 1是氢或甲基,R 2是1至32个碳原子的烷基,如果需要,具有两个或更多个双键的第一单体(b),如果需要的话,也可以将第二单体(c)或多个单体聚合 与自由基反应得到橡胶(B),在第二阶段中,将第三单体(d)或多个添加到所得橡胶(B)中以形成第二混合物(C),由此橡胶(B )在第三单体(d)中溶解或溶胀,或者在添加溶剂的情况下,在第三阶段中,形成的第二混合物(C)与自由基聚合,得到橡胶改性的成型材料(D ),并且在该聚合期间或之后,混合物在> 120℃下与含有至少两个过氧基团的化合物(e)反应。