Low molecular weight polymers and copolymers
    1.
    发明授权
    Low molecular weight polymers and copolymers 失效
    低分子量聚合物和共聚物

    公开(公告)号:US4680354A

    公开(公告)日:1987-07-14

    申请号:US865555

    申请日:1986-05-21

    IPC分类号: C08F2/38 C08F4/06 C08F4/26

    CPC分类号: C08F4/26

    摘要: New Cobalt(II) nitrilomethylidyne dipyrrole complexes such as Cobalt(II) 2,2'-[trimethylenebis(nitrilomethylidyne)]-dipyrrole, Cobalt(II) 2,2'-[o-phenylenebis(nitrilomethylidyne)]-dipyrrole and their basic ligand complexes are effective catalysts for molecular weight control in acrylate/methacrylate polymerization.The process comprises polymerizing monomers, especially including methacrylic monomer or methacrylic/acrylic monomer, in the presence of azo initiator and between 0.0001% and 0.01% of Cobalt(II) 2,2'-[trimethylenebis(nitrilomethylidyne)]-dipyrrole and/or Cobalt(II) 2,2'-[o-phenylenebis(nitrilomethylidyne)]-dipyrrole complexes to produce low molecular weight acrylate polymers and copolymers.

    摘要翻译: (II)2,2' - [三亚甲基二(亚硝基甲基炔)] - 二吡咯钴(II),2,2' - [邻 - 亚苯基双(次氮基亚甲基)] - 二吡咯钴(Ⅱ)亚基亚甲基二吡咯络合物及其碱 配体配合物是丙烯酸酯/甲基丙烯酸酯聚合中分子量控制的有效催化剂。 该方法包括在偶氮引发剂存在下聚合单体,特别是包括甲基丙烯酸单体或甲基丙烯酸/丙烯酸单体,以及在0.0001%和0.01%之间的2,2' - [三亚甲基双(亚氮基亚甲基)] - 二吡咯钴(Ⅱ)和/或 钴(II)2,2' - [邻 - 亚苯基双(次氮基亚甲基)] - 二吡咯络合物,以产生低分子量丙烯酸酯聚合物和共聚物。

    Cobalt (II) complex catalyst for polymerization of monomers
    2.
    发明授权
    Cobalt (II) complex catalyst for polymerization of monomers 失效
    用于单体聚合的钴(II)络合催化剂

    公开(公告)号:US4837326A

    公开(公告)日:1989-06-06

    申请号:US45486

    申请日:1987-05-01

    IPC分类号: C08F4/26 C08F4/80

    CPC分类号: C08F4/26

    摘要: New Cobalt (II) nitrilomethylidyne dipyrrole complexes such as Cobalt (II) 2,2'-[trimethylenebis(nitrilomethylidyne)]-dipyrrole, Cobalt(II) 2,2'[o-phenylenebis(nitrilomethylidyne)]-dipyrrole and their basic ligand complexes are effective catalysts for molecular weight control in acrylate/methacrylate polymerization. The Cobalt (II) complex of a nitrilomethylidyne dipyrrole comprises the structure: ##STR1## where R is a diradical selected form trimethylene bis-, o-phenylenebis, or ethylenebis.The process comprises polymerizing monomers, especially including methacrylic monomer or methacrylic/acrylic monomer, in the presence of azo initiator and between 0.0001% and 0.01% of Cobalt (II) 2,2'-[trimethylenebis (nitrilomethylidyne)]-dipyrrole and/or Cobalt (II) 2,2'-[-phenylenebis (nitrilomethylidyne]-dipyrrole complexes to produce low molecular weight acrylate polymers and copolymers.

    摘要翻译: (II)2,2' - [三亚甲基二(亚硝基甲基炔)] - 二吡咯钴(II)2,2'[邻亚苯基双(亚硝基亚甲基)] - 二吡咯及其碱性配体的新型(II)亚硝基亚甲基二吡咯络合物 络合物是丙烯酸酯/甲基丙烯酸酯聚合中分子量控制的有效催化剂。 亚硝基亚甲基二吡咯的钴(II)络合物包括以下结构:其中R是双基选择的三亚甲基双 - ,邻 - 亚苯基双或亚乙基双。 该方法包括在偶氮引发剂存在下聚合单体,特别是包括甲基丙烯酸单体或甲基丙烯酸/丙烯酸单体,以及在0.0001%和0.01%之间的2,2' - [三亚甲基双(亚氮基亚甲基)] - 二吡咯钴(Ⅱ)和/或 钴(II)2,2' - [ - 亚苯基双(次氮基亚甲基) - 二吡咯络合物,以产生低分子量丙烯酸酯聚合物和共聚物。

    Silicone-polyester powder coating compositions
    3.
    发明授权
    Silicone-polyester powder coating compositions 失效
    有机硅聚酯粉末涂料组合物

    公开(公告)号:US4608421A

    公开(公告)日:1986-08-26

    申请号:US745443

    申请日:1985-06-17

    申请人: Ju-Chui Lin

    发明人: Ju-Chui Lin

    摘要: New siloxane-polyesters, siloxane-ethers and siloxane-ether-polyesters, useful as powder coating resins, are prepared by reacting rigid diacids, neopentyl glycol, trimellitic anhydride with up to 90 percent hydroxyl functional silicone having about two .dbd.Si(R)--OH groups per molecule where R is lower alkyl or phenyl groups and the remaining silicon valences form ring-structured siloxanes. Improved powder properties, including crystallinity and tack temperatures of 50.degree.-90.degree. C., are believed to result in part from the rigidity provided by both the specific diacids and the cyclic silicones. The siloxane resins are hard at room temperature and can be powdered by methanical grinding. Powder coatings formulated from these resins are particularly suitable for coating metal and glass substrate.

    摘要翻译: 用作粉末涂料树脂的新的硅氧烷 - 聚酯,硅氧烷 - 醚和硅氧烷 - 醚 - 聚酯通过刚性二酸,新戊二醇,偏苯三酸酐与高达90%的具有约2 = Si(R) - OH基团,其中R是低级烷基或苯基,剩余的硅价形成环状结构的硅氧烷。 据信,改进的粉末性质,包括结晶度和粘度温度为50-90℃,部分原因是由特定二酸和环状硅氧烷提供的刚性。 硅氧烷树脂在室温下很硬,可以通过甲烷研磨来粉化。 由这些树脂配制的粉末涂料特别适用于涂覆金属和玻璃基材。

    Silicone-ester powder coating compositions
    4.
    发明授权
    Silicone-ester powder coating compositions 失效
    硅酮酯粉末涂料组合物

    公开(公告)号:US4683271A

    公开(公告)日:1987-07-28

    申请号:US869419

    申请日:1986-06-02

    摘要: New siloxane-esters, useful as powder coating resins, are prepared by random condensation polymerization of a hindered glycol and a hydroxy functional silicone having about two ##STR1## groups per molecule wherein R is lower alkyl or phenyl groups and the remaining silicone valences form ring-structured siloxanes. Improved powder properties, including tack temperatures of 150.degree. F. to 220.degree. F., are believed to result in part from the hindered glycols especially those having carboxylic functionality.

    摘要翻译: 可用作粉末涂料树脂的新的硅氧烷酯通过受阻二醇和每分子具有约两个基团的羟基官能硅氧烷的无规缩聚制备,其中R是低级烷基或苯基,剩余的硅氧烷键形成环 结构的硅氧烷。 据信,改进的粉末性质,包括150°F至220°F的粘性温度,部分来自受阻二醇,特别是具有羧基官能团的那些。