Preparation of rubber-modified molding materials by means of groups
which are incorporated in the rubber and form free radicals on thermal
decomposition
    1.
    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
    3.
    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。

    Preparation of thermoplastic molding compositions
    4.
    发明授权
    Preparation of thermoplastic molding compositions 失效
    热塑性成型组合物的制备

    公开(公告)号:US06515079B2

    公开(公告)日:2003-02-04

    申请号:US09734026

    申请日:2000-12-12

    IPC分类号: C08J300

    摘要: In a process for preparing thermoplastic molding compositions by a) polymerizing, in aqueous emulsion, dienes, C1-C12-alkyl acrylates or mixtures of these, where from 0 to 30% by weight of these monomers may have been replaced by other copolymerizable monomers, and where from 0 to 10 by weight of these monomers may have been replaced by crosslinking monomers, to give a rubber latex with a glass transition temperature below −10° C., b) agglomerating, at least to some extent, the rubber latex obtained in a), by adding, as agglomerating agent, a dispersion of a polymer made from 80 to 100% by weight of C1-C12-alkyl acrylates and from to 20% by weight of comonomers forming water-soluble polymers, where from 0 to 50% by weight of these monomers may have been replaced by other copolymerizable monomers, c) polymerizing, in aqueous emulsion, from 10 to 90 parts by weight of styrene, &agr;-methylstyrene, (meth)acrylonitril, C1-C12-alkyl acrylate, C1-C6-alkyl methacrylate or mixtures of these, where up to 30% by weight of these monomers may have been replaced by other copolymerizable monomers, in the presence of from 10 to 90% by weight of the agglomerated latex obtained in b), based on the solid, to give a graft polymer, the agglomerating agent is prepared by polymerizing the monomers mentioned in b) in the presence of from 0.001 to 10% by weight of a molecular weight regulator, based on the amount of the monomers mentioned in b).

    摘要翻译: 在制备热塑性模塑组合物的方法中,a)在水乳液中聚合二烯,丙烯酸C 1 -C 12烷基酯或这些的混合物,其中0至30重量%的这些单体可能已被其它可共聚单体替代,以及 其中0至10重量份的这些单体可能已被交联单体代替,得到玻璃化转变温度低于-10℃的橡胶胶乳,b)至少在一定程度上聚集所得橡胶胶乳 a)通过作为附聚剂添加由80-100重量%的丙烯酸C 1 -C 12烷基酯和20重量%的形成水溶性聚合物的共聚单体制成的聚合物的分散体,其中0至50 这些单体的重量百分比可能已被其他可共聚单体所取代,c)在水性乳液中聚合10至90份重量的苯乙烯,α-甲基苯乙烯,(甲基)丙烯腈,丙烯酸C1-C12-烷基酯,C1 甲基丙烯酸C 1-6烷基酯或它们的混合物 基于固体,在至少30重量%的这些单体可以被其它可共聚的单体替代,其中以10重量%至90重量%的在b)中获得的聚集胶乳为基础,得到接枝聚合物, 基于b)中提到的单体的量,通过在0.001-10重量%的分子量调节剂的存在下,将b)中所述的单体聚合来制备附聚剂。

    Process for preparing microemulsion polymer particles using high shear forces
    5.
    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
    6.
    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。