Particulate graft copolymers and thermoplastic molding materials
containing them and having improved colorability
    5.
    发明授权
    Particulate graft copolymers and thermoplastic molding materials containing them and having improved colorability 失效
    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

    公开(公告)号:US5777036A

    公开(公告)日:1998-07-07

    申请号:US839704

    申请日:1997-04-15

    摘要: 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.

    摘要翻译: 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。

    Process for preparing microemulsion polymer particles using high shear forces
    7.
    发明授权
    Process for preparing microemulsion polymer particles using high shear forces 失效
    使用高剪切力制备微乳液聚合物颗粒的方法

    公开(公告)号:US06177525B1

    公开(公告)日:2001-01-23

    申请号:US09242467

    申请日:1999-02-17

    IPC分类号: C08F224

    摘要: A particulate polymer P having an average particle diameter d50 of from 0.1 to 50 &mgr;m is prepared by a process in which an emulsion E is prepared from one or more monomers M, which are polymerizable by free radical polymerization to give the polymer P, water, and at least one protective colloid PC by the action of high shear forces, and the emulsion E is subjected to polymerization in a reactor with the use of a free radical polymerization initiator RI wherein, based on the emulsion E, not more than 75% by weight of the emulsion E (initially taken portion of E) are initially taken in the reactor at the beginning of the polymerization and at least 25% by weight of the emulsion E (feed portion of E) are not fed to the reactor until after the beginning of the polymerization.

    摘要翻译: 平均粒径d50为0.1-50μm的颗粒聚合物P通过其中由一种或多种单体M制备乳液E的方法制备,其可通过自由基聚合反应得到聚合物P,水和 通过高剪切力的作用,至少一种保护胶体PC,并且使用自由基聚合引发剂RI在反应器中对乳液E进行聚合,其中基于乳液E,不超过75重量% 乳液E(E的最初摄取部分)最初在聚合开始时在反应器中进料,并且至少25重量%的乳液E(E的进料部分)未进料到反应器中,直到开始 聚合。

    Process for producing moulding compounds modified with acrylic rubber
and moulding compounds thus obtainable
    8.
    发明授权
    Process for producing moulding compounds modified with acrylic rubber and moulding compounds thus obtainable 失效
    用丙烯酸橡胶改性的成型化合物的生产方法和由此获得的模塑料

    公开(公告)号:US6111024A

    公开(公告)日:2000-08-29

    申请号:US155907

    申请日:1998-10-08

    摘要: Rubber-modified molding materials having improved impact strength in combination with good flow behavior can be prepared by special graft polymerization of monomers forming hard graft shells, such as styrene and acrylonitrile, in the presence of an elastomeric acrylate macromonomer copolymer dissolved or swollen in these monomers, the graft polymerization being carried out, to a conversion of more than 15% by weight of the monomers, by thermal or free radical mass or solution polymerization.

    摘要翻译: PCT No.PCT / EP97 / 01869 Sec。 371日期:1998年10月8日 102(e)1998年10月8日PCT PCT 1997年4月14日提交PCT公布。 出版物WO97 / 39038 日期1997年10月23日具有改善的冲击强度与良好流动行为相结合的橡胶改性的成型材料可以通过在形成硬接枝壳如苯乙烯和丙烯腈的单体的特殊接枝聚合反应中,在弹性体丙烯酸酯大分子单体共聚物溶解 或在这些单体中溶胀,通过热或自由基质量或溶液聚合进行接枝聚合,以达到大于15重量%的单体的转化率。

    Preparation of rubber-modified molding materials by means of groups
which are incorporated in the rubber and form free radicals on thermal
decomposition
    9.
    发明授权
    Preparation of rubber-modified molding materials by means of groups which are incorporated in the rubber and form free radicals on thermal decomposition 失效
    通过加入橡胶中的基团并通过热分解形成自由基来制备橡胶改性的成型材料

    公开(公告)号:US5910553A

    公开(公告)日:1999-06-08

    申请号:US836309

    申请日:1997-05-12

    CPC分类号: C08F265/04 C08L51/04

    摘要: 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, at least one first monomer (b) which forms free radicals on thermal decomposition and, if required, a second monomer (c) or a plurality thereof is polymerized, preferably with free radicals, to give a rubber (B),in a second stage, the resulting rubber (B) is mixed with a third monomer (d) or a plurality thereof, preferably dissolved or swollen therein, to form a second mixture (C), andin a third stage, the second mixture (C) is polymerized with free radicals to give the rubber-modified molding material (D).

    摘要翻译: PCT No.PCT / EP95 / 04474 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。 公开号WO96 / 15166 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),其中R1是氢或甲基, R2是1至32个碳原子的烷基,至少一个在热分解时形成自由基的第一单体(b),如果需要的话,第二单体(c)或多个第一单体(b)优选与自由基聚合,得到 橡胶(B),在第二阶段中,将得到的橡胶(B)与其中溶解或膨胀的第三单体(d)或多个混合以形成第二混合物(C),并在第三阶段 阶段,第二混合物(C)与自由基聚合,得到橡胶改性的成型材料(D)。

    Preparation of rubber-modified molding materials using peroxy-containing
compounds
    10.
    发明授权
    Preparation of rubber-modified molding materials using peroxy-containing compounds 失效
    使用过氧化合物制备橡胶改性的成型材料

    公开(公告)号:US5837777A

    公开(公告)日:1998-11-17

    申请号:US836312

    申请日:1997-05-12

    CPC分类号: C08F285/00

    摘要: 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.

    摘要翻译: 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。