ATOM TRANFER DISPERSION POLYMERIZATION
    3.
    发明申请
    ATOM TRANFER DISPERSION POLYMERIZATION 有权
    原子转移分散聚合

    公开(公告)号:US20100273906A1

    公开(公告)日:2010-10-28

    申请号:US12451581

    申请日:2008-05-23

    CPC classification number: C08F12/08 C08F2/14 C08F2/38 C08F212/36 C08F2438/01

    Abstract: The present disclosure describes a two-step batch dispersion polymerization process for the preparation of substantially uniformed-sized functional (co)polymer particles. The first step of the process includes polymerizing at least one first radically (co)polymerizable monomer by a free radical polymerization process to form a (co)polymer in a stable colloidal dispersion and the second step includes polymerizing the at first radically (co)polymerizable monomer or an additional radically (co)polymerizable monomer in the stable colloidal dispersion by a living/controlled radical (co)polymerization process.

    Abstract translation: 本公开描述了用于制备基本上均匀尺寸的功能(共)聚合物颗粒的两步间歇分散聚合方法。 该方法的第一步包括通过自由基聚合方法聚合至少一种第一自由基(共)可聚合单体,以在稳定的胶态分散体中形成(共)聚合物,第二步包括首先从根本上聚合(共)可聚合 单体或通过活/受控自由基(共)聚合方法在稳定的胶体分散体中的另外的自由基(共)可聚合单体。

    Polymerization Process with catalyst reactivation
    4.
    发明申请
    Polymerization Process with catalyst reactivation 有权
    催化剂再活化聚合过程

    公开(公告)号:US20090312505A1

    公开(公告)日:2009-12-17

    申请号:US11990841

    申请日:2006-08-28

    Abstract: Polymerization processes of the present invention comprise low catalyst concentration. Embodiments include a polymerization process comprising polymerizing free radically (co)polymerizable monomers in a polymerization medium comprising one or more radically (co)polymerizable monomers, a transition metal catalyst complex capable of participating in a one electron redox reaction with an ATRP initiator; a free radical initiator; and an ATRP initiator; (wherein the concentration of transition metal catalyst complex in the polymerization medium is less than 100 ppm). Further embodiments include a polymerization process, comprising polymerizing one or more radically (co)polymerizable monomers in the presence of at least one transition metal catalyst complex; and an ATRP initiator; and a reducing agent; wherein the transition metal catalyst complex is present at less than 10″3 mole compared to the moles of radically transferable atoms or groups present on the ATRP initiator.

    Abstract translation: 本发明的聚合方法包括低催化剂浓度。 实施方案包括聚合方法,其包括在包含一种或多种自由基(共)可聚合单体的聚合介质中自由基(共)可聚合单体聚合,能够与ATRP引发剂参与一电子氧化还原反应的过渡金属催化剂络合物; 自由基引发剂; 和ATRP引发剂; (其中聚合介质中过渡金属催化剂配合物的浓度小于100ppm)。 另外的实施方案包括聚合方法,包括在至少一种过渡金属催化剂络合物的存在下聚合一种或多种自由基(共)可聚合单体; 和ATRP引发剂; 和还原剂; 其中与ATRP引发剂上存在的可自由基转移的原子或基团的摩尔数相比,过渡金属催化剂络合物的存在量小于10'3摩尔。

    Esterification of phenol catalyzed with a strong base plus boron
    5.
    发明授权
    Esterification of phenol catalyzed with a strong base plus boron 失效
    用强碱加硼催化苯酚酯化

    公开(公告)号:US4271311A

    公开(公告)日:1981-06-02

    申请号:US57198

    申请日:1979-07-13

    CPC classification number: C07C67/08

    Abstract: Esterification of phenolic compounds which comprises reacting a phenolic compound and a carboxylic acid using a catalyst consisting essentially of an alkali metal compound and a boron compound wherein said alkali metal compound is at least one member selected from the group consisting of alkali metal salts of boric acid, alkali metal polyborates, alkali metal hydroxides, and alkali metal borohydrides and said boron compound is at least one member selected from the group consisting of boric acid, boric anhydride, alkali metal polyborates, alkali metal salts of boric acid and alkali metal borohydrides.

    Abstract translation: 酚类化合物的酯化反应,其包括使用主要由碱金属化合物和硼化合物组成的催化剂使酚类化合物与羧酸反应,其中所述碱金属化合物是选自硼酸的碱金属盐中的至少一种 ,碱金属多硼酸盐,碱金属氢氧化物和碱金属硼氢化物,所述硼化合物是选自硼酸,硼酸酐,碱金属多硼酸盐,硼酸碱金属盐和碱金属硼氢化物中的至少一种。

    Translucent impact polystyrene
    6.
    发明授权
    Translucent impact polystyrene 失效
    TRANSLING IMPACT POLYSTYRENE

    公开(公告)号:US3957915A

    公开(公告)日:1976-05-18

    申请号:US573311

    申请日:1975-04-30

    Inventor: James Spanswick

    CPC classification number: C08F279/02

    Abstract: Translucent rubber-modified styrene polymers are prepared by adding 0.005 to 0.5% of 1,2-dibromo-2-phenylpropane or methyl-2,3-dibromo-3-phenylpropionate to the polymerization feedstock.

    Color stable aromatic polyesters
    10.
    发明授权
    Color stable aromatic polyesters 失效
    颜色稳定的芳族聚酯

    公开(公告)号:US4302382A

    公开(公告)日:1981-11-24

    申请号:US146741

    申请日:1980-05-05

    Inventor: James Spanswick

    CPC classification number: C08K5/521 C08G63/19 C08K5/1515 C08K5/5333 C08L67/02

    Abstract: Color stable compositions consisting of aromatic polyester and 0.01 to 0.5% by weight of the aromatic polyester of a stabilizer selected from the group consisting of phosphates, phosphonates and mixtures of either phosphates or phosphonates with epoxides having a boiling point of above about 250.degree. C. These compositions are useful in the manufacture of engineering plastics such as automobile headlights.

    Abstract translation: 由芳族聚酯组成的颜色稳定组合物和选自磷酸盐,膦酸盐和磷酸盐或膦酸盐与沸点高于约250℃的环氧化物的混合物的稳定剂的0.01至0.5重量%的芳族聚酯。 这些组合物可用于制造诸如汽车前灯的工程塑料。

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