Process for producing aqueou dispersions
    6.
    发明申请
    Process for producing aqueou dispersions 有权
    生产阿ou分散体的方法

    公开(公告)号:US20060052515A1

    公开(公告)日:2006-03-09

    申请号:US10539132

    申请日:2003-10-18

    IPC分类号: C08L31/00

    摘要: The present invention relates to a process for preparing an aqueous dispersion, by a) forming an initial charge from water and emulsifier, b) adding from 25.0 to 45.0 parts by weight of a first composition comprising A) from 50.0 to 99.9 parts by weight of alkyl methacrylates, B) from 0.0 to 40.0 parts by weight of alkyl acrylates, C) from 0.1 to 10.0 parts by weight of crosslinking monomers and D) from 0.0 to 8.0 parts by weight of styrenic monomers and polymerizing, c) adding from 35.0 to 55.0 parts by weight of a second composition comprising E) from 80.0 to 100.0 parts by weight of (meth) acrylates F) from 0.05 to 10.0 parts by weight of crosslinking monomers and G) from 0.0 to 20.0 parts by weight of styrenic monomers, and polymerizing, d) adding from 10.0 to 30.0 parts by weight of a third composition comprising H) from 50.0 to 100.0 parts by weight of alkyl methacrylates, I) from 0.0 to 40.0 parts by weight of alkyl acrylates and J) from 0.0 to 10.0 parts by weight of styrenic monomers and polymerizing. Features of the process are that e) each polymerization is carried out at a temperature in the range from >60 to

    摘要翻译: 本发明涉及一种制备水性分散体的方法,该方法是:a)从水和乳化剂中形成初始电荷,b)将25.0至45.0重量份的第一组合物加入到包含A)的第一组合物中,所述第一组合物为50.0至99.9重量份的 甲基丙烯酸烷基酯,B)0.0至40.0重量份的丙烯酸烷基酯,C)0.1至10.0重量份的交联单体和D)0.0至8.0重量份的苯乙烯单体并且聚合,c)从35.0加入至 55.0重量份第二组合物,其包含E)80.0至100.0重量份的(甲基)丙烯酸酯F)0.05至10.0重量份的交联单体和G)0.0至20.0重量份的苯乙烯单体,和 聚合,d)从10.0至30.0重量份的第三组合物加入,包含H)50.0至100.0重量份的甲基丙烯酸烷基酯,I)0.0至40.0重量份的丙烯酸烷基酯和J)0.0至10.0重量份 重量的苯乙烯 开口和聚合。 该方法的特征是e)每种聚合在> 60至<90℃的温度范围内进行,f)所有物质的相对比例选择为使得总重量 基于水分散体的总重量,组分A)至J)大于50.0重量%。

    Material for modifying impact resistance
    8.
    发明授权
    Material for modifying impact resistance 失效
    改善耐冲击性的材料

    公开(公告)号:US5270397A

    公开(公告)日:1993-12-14

    申请号:US904183

    申请日:1992-06-25

    摘要: An emulsion polymer having at least three phases, adaptable as an agent for modifying the impact resistance of rigid thermoplastic synthetic resins such as polymethyl methacrylate, and consisting ofA) a rigid core phase of a crosslinked homo- or copolymer,B) an elastomer phase, prepared in the presence of the core material and having a glass transition temperature not above -10.degree. C., comprising a crosslinked resin which includes an arylalkyl acrylate or arylalkyl methacrylate, andC) a rigid shell phase, prepared in the presence of the elastomer phase, having a glass transition temperature of at least 50.degree. C.

    摘要翻译: 具有至少三相的乳液聚合物,适用于改性刚性热塑性合成树脂如聚甲基丙烯酸甲酯的耐冲击性的试剂,由A)交联的均聚物或共聚物的刚性核相组成,B)弹性体相 在芯材存在下制备玻璃化转变温度不高于-10℃,包括交联树脂,其包括丙烯酸芳基烷基酯或甲基丙烯酸芳基烷基酯,和C)刚性壳相,其在 弹性体相,玻璃化转变温度至少为50℃

    Molding material containing a matting agent
    10.
    发明授权
    Molding material containing a matting agent 有权
    含有消光剂的成型材料

    公开(公告)号:US07683131B2

    公开(公告)日:2010-03-23

    申请号:US10579843

    申请日:2004-09-15

    摘要: The invention relates to a moulding composition, comprising a) 50 to 99.9% by weight of a matrix composed of a thermoplastic polymer and b) from 0.1 to 50% by weight of a matting agent in the form of a (meth)acrylate copolymer dispersed in the matrix, characterized in that the matting agent is a (meth)acrylate copolymer which has been prepared from the following monomers, b1) from 50 to 95% by weight of methyl methacrylate b2) from 5 to 50% by weight of C1-C6-alkyl acrylates b3) from 0.01 to less than 0.5% by weight of a crosslinking monomer and/or graft-linking agent having two or more ethylenically unsaturated radicals capable of free-radical polymerization, b4) from 0 to 20% by weight of one or more other, non-crosslinking ethylenically unsaturated monomers capable of free-radical polymerization, where the entirety of the constituents b1) and b2) and, where appropriate, b3) and/or b4) gives 100% by weight, and the glass transition temperature Tmg of the matting agent is at least 20° C.

    摘要翻译: 本发明涉及一种模塑组合物,其包含a)50-99.9重量%的由热塑性聚合物组成的基质和b)0.1至50重量%的分散在(甲基)丙烯酸酯共聚物形式的消光剂 在基质中,其特征在于,所述消光剂是已经从下列单体制备的,B1)为50〜95重量%的甲基丙烯酸甲酯b2的)从5至50%(重量)C 1 -C的(甲基)丙烯酸酯共聚物 丙烯酸C 6 - 烷基酯b 3)0.01至小于0.5重量%的具有两个或更多个能够进行自由基聚合的烯键式不饱和基团的交联单体和/或接枝交联剂,b4)0至20重量% 一种或多种能够进行自由基聚合的其它非交联烯键式不饱和单体,其中b1)和b2)和b3)和/或b4)的总体含量为100%(重量),玻璃 消光剂的转变温度Tmg的是至少20 C.