Polyester which exhibits melt anisotropy
    1.
    发明授权
    Polyester which exhibits melt anisotropy 失效
    具有熔体各向异性的聚酯

    公开(公告)号:US5179192A

    公开(公告)日:1993-01-12

    申请号:US763245

    申请日:1991-09-20

    IPC分类号: C08G63/60 C09K19/38

    CPC分类号: C09K19/3809 C08G63/605

    摘要: An improved polyester exhibiting melt anisotropy and excellent thermal stability is provided which consists essentially of the structural units (I) to (III) wherein: ##STR1## wherein Ar.sub.1 is 1,4-phenylene, Ar.sub.2 is a mixed system of 2,6-naphthalene and 2,7-naphthalene, and Ar.sub.3 is an aromatic ring containing 6 or more carbon atoms, the unit (I) accounting for 15 to 90 mole percent and the unit (II) for 20 to 70 mole percent of the total amount of the structural units, and the percentage of 2,7-naphthalene to the total amount of Ar.sub.2 in the unit (II) being between 10 and 90 mole percent.

    摘要翻译: 提供了具有熔融各向异性和优异的热稳定性的改进聚酯,其基本上由结构单元(I)至(III)组成,其中:其中Ar 1是1,4-亚苯基,Ar 2是 2,6-萘和2,7-萘的混合体系,Ar 3为含有6个以上碳原子的芳香环,单元(I)占15〜90摩尔%,单元(II)为20〜 结构单元总量的70摩尔%,和单元(II)中的Ar 2的总量的2,7-萘的百分比为10〜90摩尔%。

    Halogen-contained polyester resin composite and electric wire
    8.
    发明授权
    Halogen-contained polyester resin composite and electric wire 失效
    含卤素聚酯树脂复合电线

    公开(公告)号:US5043215A

    公开(公告)日:1991-08-27

    申请号:US515363

    申请日:1990-04-30

    摘要: A halogen-containing polyester resin composition having an improved stable flexibility and flame retardency which comprises a bislactam compound and a flame-resisting aromatic polyester copolymers containing halogen at a ratio of 0.5 to 30% by weight, said copolymers being by the poly-condensation of(A) aromatic dicarboxylic acids or ester-forming derivatives thereof;(B) aliphatic glycols or ester-forming derivatives thereof; and(C) halogen-containing ester-forming compounds, said bislactam compound being present in a ratio of 0.1 to 10% by weight based on the total quantity of the composite.

    摘要翻译: 具有改进的稳定柔性和阻燃性的含卤聚酯树脂组合物,其包含双内酰胺化合物和含有0.5至30重量%比例的卤素的阻燃芳族聚酯共聚物,所述共聚物通过多缩合 (A)芳族二羧酸或其酯形成衍生物; (B)脂肪族二醇或其酯形成衍生物; 和(C)含卤素的酯形成化合物,所述双内酰胺化合物以基于复合材料的总量的0.1至10重量%的比例存在。

    Synthetic resin composition
    9.
    发明授权

    公开(公告)号:US5006581A

    公开(公告)日:1991-04-09

    申请号:US130907

    申请日:1987-12-11

    摘要: A synthetic resin composition, having a high toughness and a wear resistance, comprises a synthetic resin with solubility parameter .delta.9.5 cal1/2 cm.sup.31 3/2 or higher and a modifier with solubility parameter .delta.8.5 cal.sup.1/2 cm.sup.-3/2 or lower and dispersed therein, characterized in that a silicon containing copolyester, being a block copolymer consisting of 1.about.90% by weight of siloxane segment represented by the undermentioned general formula (A) and 99.about.1% by weight of polyester segment represented by the undermentioned general formula (B), the degree of polymerization of siloxane segment being 1.about.2,000, and that of polyester segment 1.about.1,000, is added to be mixed therewith as a dispersibility improver: ##STR1## (In this formula, m denotes a number of 1.about.2,000.) ##STR2## (In this formula, R.sub.1 designates one or two or more members selected from among aromatic divalent radicals having 6.about.12 carbon atoms or aliphatic divalent radicals having 4.about.20 carbon atoms, and R.sub.2 from among aromatic divalent radicals having 6.about.20 carbon atoms or aliphatic divalent radicals having 2.about.20 carbon atoms; and n stands for a number of 1.about.1,000).