利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

172 条记录 (耗时 0.026 秒)

    Aromatic polyesters and polyester-carbonates having specific fluorine-containing bisphenol components, their preparation and their use
    33.
    发明授权
    Aromatic polyesters and polyester-carbonates having specific fluorine-containing bisphenol components, their preparation and their use 失效
    具有含氟荧光的二苯醚组分的芳族聚酯和聚碳酸酯，其制备及其用途

    公开(公告)号：US5164474A

    公开(公告)日：1992-11-17

    申请号：US641193

    申请日：1991-01-15

    申请人： Richard Weider ,  Michael Negele

    发明人： Richard Weider ,  Michael Negele

    IPC分类号： C08G63/193 ,  C08G63/64 ,  C08G63/66 ,  C08G63/682 ,  C08G63/688 ,  C08G64/10 ,  C08K3/30 ,  C08K3/38

    CPC分类号： C08K3/30 ,  C08G63/193 ,  C08G63/64 ,  C08G63/6826 ,  C08K3/38

    摘要： New aromatic polyesters and polyester-carbonates are prepared by the reaction of bisphenols of the formula ##STR1## wherein R.sup.3 and R.sup.4 independently of each other represent C.sub.1 -C.sub.4 alkyl group or a halogen atom, i and k denote zero or an integer 1 to 4, and X.sub.1 and X.sub.2 represent fluorine by the two-phase boundary process in an aqueous-alkaline phase with iso- or tere-phthaloyl dichloride. The polyesters and polyester carbonates according to the invention can be processed to form shaped articles by extrusion molding or in an extruder, applied in the form of solutions, or spun to fibers from melt or solution.

    摘要翻译： 新的芳族聚酯和聚酯 - 碳酸酯通过式（II）的双酚反应制备，其中R 3和R 4彼此独立地表示C 1 -C 4烷基或卤原子，i和k表示0或整数 1〜4，X 1和X 2在水相 - 碱相中与异邻或邻苯二甲酰氯的二相边界过程表示氟。 根据本发明的聚酯和聚酯碳酸酯可以通过挤出成型或挤出机加工形成成形制品，以溶液的形式施用，或者从熔体或溶液纺成纤维。

    Flame-resistant polycarbonate containing units from halogenated triphenyl compounds
    36.
    发明授权
    Flame-resistant polycarbonate containing units from halogenated triphenyl compounds 失效
    含有卤化三苯基化合物单元的耐火聚碳酸酯

    公开(公告)号：US5047498A

    公开(公告)日：1991-09-10

    申请号：US365958

    申请日：1989-06-12

    申请人： Alberto Petri

    发明人： Alberto Petri

    IPC分类号： C08G64/00 ,  C08G64/10

    CPC分类号： C08G64/10

    摘要： Thermoplastic branched polycarbonates of high molecular weight and which possess flame-resistant (self-extinguishing) properties are provided wherein said polycarbonates contain in addition to carbonate units, units derived from a dihydroxyaromatic compound, units derived from a halogenated triphenyl compound and units derived from a polyfunctional organic branching agent.

    摘要翻译： 提供了具有高耐火性（自熄性）性质的高分子量热塑性支链聚碳酸酯，其中所述聚碳酸酯除了含有碳酸酯单元外，还含有源自二羟基芳族化合物的单元，衍生自卤化三苯基化合物的单元和衍生自 多官能有机支化剂。

    Polycarbonate cross-linked resin
    37.
    发明授权
    Polycarbonate cross-linked resin 失效
    聚碳酸酯交联树脂

    公开(公告)号：US4960863A

    公开(公告)日：1990-10-02

    申请号：US414164

    申请日：1989-09-28

    申请人： Niles R. Rosenquist

    发明人： Niles R. Rosenquist

    IPC分类号： C08G63/64 ,  C08G64/10 ,  C08G64/14 ,  C08G69/44

    CPC分类号： C08G64/10 ,  C08G63/64 ,  C08G64/14 ,  C08G69/44

    摘要： Polycarbonate resins containing at least one divalent chain unit of the formula: ##STR1## wherein E represents a trivalent hydrocarbon radical, or a trivalent halogen-substituted hydrocarbon radical, are transitory cross-linkers prepared by thermal degradation of the corresponding acid esters (the ester group being removable under conditions of the degradation by a beta-elimination mechanism). Cross-linked polycarbonate resins exhibit enhanced fire-resistance, especially non-dripping. The cross-linkers are useful to cross-link any resin having a group reactive with a carboxyl group.

    摘要翻译： 含有下式的至少一个二价链单元的聚碳酸酯树脂：其中E表示三价烃基或三价卤素取代的烃基，是通过相应的酸酯（酯的热降解）制备的短暂交联剂 组在通过β-消除机制降解的条件下是可去除的）。 交联聚碳酸酯树脂具有增强的耐火性，特别是不滴加。 交联剂可用于交联具有与羧基反应的基团的任何树脂。