ATOM TRANFER DISPERSION POLYMERIZATION
    21.
    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。

    Esterification of phenol catalyzed with a strong base plus boron
    22.
    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
    23.
    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
    26.
    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。

    Fire retardant polymer
    27.
    发明授权
    Fire retardant polymer 失效
    阻燃聚合物

    公开(公告)号:US4101510A

    公开(公告)日:1978-07-18

    申请号:US775933

    申请日:1977-03-09

    Inventor: James Spanswick

    CPC classification number: C08K3/0058 C08L25/06 C08L23/02 C08L25/18

    Abstract: A fire retardant polymer which has a low halogen content is obtained by incorporating a vinyl aromatic containing a group reactive under Friedel-Crafts conditions and a Lewis acid or Lewis acid precursor within a thermoplastic composition.

    Abstract translation: 具有低卤素含量的阻燃聚合物通过在热塑性组合物中掺入在Friedel-Crafts条件下含有基团的乙烯基芳族化合物和路易斯酸或路易斯酸前体而获得。

    Degradable polymers
    29.
    发明申请
    Degradable polymers 审中-公开
    可降解聚合物

    公开(公告)号:US20070155926A1

    公开(公告)日:2007-07-05

    申请号:US10548354

    申请日:2004-03-29

    Abstract: Polymers comprising a polymer backbone comprising one or more degradable units are described. The polymer may additionally comprise two or more polymer segments comprising radically (co)polymerizable vinyl monomer units. The degradable units may be independently selected from, but not limited to, at least one of hydrodegradable, photodegradable and biodegradable units between the polymer segments and dispersed along the polymer backbone. The degradable units may be derived from one or more monomers comprising a heterocyclic ring that is capable of undergoing radical ring opening polymerization, a coupling agent, or from a polymerization initiator, radically polymerizable monomers, as well as other reactive sources. Embodiments of the degradable polymer of claim are capable of degrading by at least one of a hydrodegradation, photodegradation or biodegradation mechanisms to form at least one of telechelic oligomer and telechelic polymeric fragments of the polymer. The degradable polymer may be able to degrade into polymer fragments having a molecular weight distribution of less than 5, or in certain applications it may be preferable for embodiments of the polymer to be capable of forming polymer fragments having a molecular weight distribution of the polymer fragments less than 3.0 or even less than 2.5. Embodiments of the present invention also include methods of producing degradable polymers.

    Abstract translation: 描述了包含包含一个或多个可降解单元的聚合物主链的聚合物。 聚合物可以另外包含两个或更多个包含自由基(共)可聚合的乙烯基单体单元的聚合物链段。 可降解单元可以独立地选自但不限于聚合物链段之间的可分解降解的,可光降解的和可生物降解的单元中的至少一种,并沿着聚合物主链分散。 可降解单元可以衍生自一种或多种包含能够进行自由基开环聚合的杂环,偶联剂或聚合引发剂,可自由基聚合的单体以及其它反应性源的单体。 权利要求中的可降解聚合物的实施方案能够通过加氢降解,光降解或生物降解机理中的至少一种降解以形成聚合物的遥爪低聚物和遥爪聚合物片段中的至少一种。 可降解聚合物可能能够降解为具有小于5的分子量分布的聚合物片段,或者在某些应用中,聚合物的实施方案可优选地形成具有聚合物片段的分子量分布的聚合物片段 小于3.0或甚至小于2.5。 本发明的实施方案还包括生产可降解聚合物的方法。

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