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68 条记录 (耗时 0.018 秒)

    Branched aromatic polyaryl-ether sulphones
    54.
    发明授权
    Branched aromatic polyaryl-ether sulphones 失效
    支链芳香聚醚醚砜

    公开(公告)号：US3960815A

    公开(公告)日：1976-06-01

    申请号：US437643

    申请日：1974-01-29

    申请人： Gerhard Darsow ,  Paul Schiller ,  Eckart Reese ,  Ludwig Bottenbruch ,  Rudolph Binsack ,  Hugo Vernaleken ,  Joachim Wank

    发明人： Gerhard Darsow ,  Paul Schiller ,  Eckart Reese ,  Ludwig Bottenbruch ,  Rudolph Binsack ,  Hugo Vernaleken ,  Joachim Wank

    IPC分类号： C08G75/20 ,  C08G75/23

    CPC分类号： C08G75/23 ,  C08G75/20

    摘要： A branched, high molecular-weight polyaryl-ether sulphone which is the reaction product of approximately equimolar amounts of an aromatic dialkali metal bishydroxylate and a bis-(halogen-aryl) compound, whose aryl nuclei are linked by sulphonyl groups, and about 0.01 to about 2 mol %, based on the bishydroxylate or bis-(4-halogenaryl) compound, of an aromatic compound having at least three aromatically linked alkali metal hydroxylate substitutents and/or of a halogenaryl compound having at least three aryl-linked halogen substituents and which is capable of substitution under the reaction conditions of polyaryl-ether sulphone manufacture.

    摘要翻译： 作为大约等摩尔量的芳族二碱金属双羟基苯甲酸酯和双（卤素 - 芳基）化合物的反应产物的支链高分子量聚芳基醚砜，其芳基核子通过磺酰基连接，并且约0.01至 基于二氯化物或双 - （4-卤代芳基）化合物的具有至少三个芳族化合物的碱金属羟基化物取代基的芳族化合物和/或具有至少三个芳基连接的卤素取代基的卤素芳基化合物的约2摩尔％ 其能够在聚芳基醚砜制造的反应条件下进行取代。

    Macrocyclic polycarbonates
    58.
    发明授权
    Macrocyclic polycarbonates 失效
    大环聚碳酸酯

    公开(公告)号：US4299948A

    公开(公告)日：1981-11-10

    申请号：US097272

    申请日：1979-11-26

    申请人： Kurt Weirauch ,  Alfred Horbach ,  Hugo Vernaleken

    发明人： Kurt Weirauch ,  Alfred Horbach ,  Hugo Vernaleken

    IPC分类号： C08G63/00 ,  C07C68/02 ,  C08G64/00 ,  C08G64/20 ,  C08G64/26 ,  C08G63/62

    CPC分类号： C08G64/26 ,  C07C68/02

    摘要： The subject of the instant invention are polycarbonates based on diphenols of the formula I ##STR1## wherein Y is a single bond, an elkylene- or alkylidene-radical with 1 to 7 carbon atoms, a cycloalkylene- or cycloalkylidene-radical with 5 to 12 carbon atoms, ##STR2## which have weight average molecular weights (M.sub.LS) measured by light scattering of at least 15 000 and which are characterized in having an average of zero to 1.5 mols, preferably 0.3 to 1.0 mols and especially 0.3 to 0.8 mols endgroups per mol polycarbonate.The subject of instant invention is also a process for preparing these polycarbonates according to the interfacial polycondensation method, the polycarbonates thus obtained and the use of the polycarbonates according instant invention for the preparation of compounds and films.

    摘要翻译： 本发明的主题是基于式I（I）的二酚的聚碳酸酯，其中Y是单键，具有1至7个碳原子的亚烷基或亚烷基 - 亚基，具有 5至12个碳原子，其具有通过光散射测量的至少15000的重均分子量（MLS），其特征在于平均为0至1.5摩尔，优选为0.3至1.0摩尔，特别是0.3至1.0摩尔 每摩尔聚碳酸酯0.8摩尔端基。 本发明的主题也是根据界面缩聚方法制备这些聚碳酸酯的方法，由此获得的聚碳酸酯以及根据本发明的聚碳酸酯用于制备化合物和膜的用途。

    Polycarbonate film
    60.
    发明授权
    Polycarbonate film 失效
    聚碳酸酯膜

    公开(公告)号：US4140730A

    公开(公告)日：1979-02-20

    申请号：US918996

    申请日：1978-06-26

    申请人： Rudolph Binsack ,  Manfred Grundmeier ,  Eckart Reese ,  Hugo Vernaleken

    发明人： Rudolph Binsack ,  Manfred Grundmeier ,  Eckart Reese ,  Hugo Vernaleken

    IPC分类号： C08L69/00 ,  C08L67/00

    CPC分类号： C08L69/00

    摘要： A polycarbonate film having improved flame resistance and good stress-corrosion-cracking resistance is prepared from a solution of a mixture of a low molecular weight polycarbonate containing at least about 5% by weight halogen and a higher molecular weight polycarbonate prepared from bisphenol containing at least 90 mol percent bisphenol A. The novel film can be used to advantage for self-supporting electrical insulating films.

    摘要翻译： 由具有至少约5重量％卤素的低分子量聚碳酸酯和由双酚至少包含的较高分子量聚碳酸酯的混合物的混合物的溶液制备具有改善的阻燃性和良好的耐应力腐蚀开裂性的聚碳酸酯薄膜 双酚A为90摩尔％。新型薄膜可用于自支撑电绝缘薄膜。