利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

212 条记录 (耗时 0.038 秒)

    Stabilization of highly heat distortion resistant polycarbonates
    23.
    发明授权
    Stabilization of highly heat distortion resistant polycarbonates 失效
    高耐热变形聚碳酸酯的稳定化

    公开(公告)号：US5194467A

    公开(公告)日：1993-03-16

    申请号：US816918

    申请日：1992-01-03

    申请人： Helmut-Martin Meier ,  Uwe Westeppe ,  Rolf Dhein ,  Dieter Freitag ,  Martin Wandel ,  Axel Sandquist

    发明人： Helmut-Martin Meier ,  Uwe Westeppe ,  Rolf Dhein ,  Dieter Freitag ,  Martin Wandel ,  Axel Sandquist

    IPC分类号： C08K5/5435

    CPC分类号： C08K5/5435

    摘要： Highly heat distortion resistant moulding compositions are disclosed comprising an aromatic polycarbonate having molecular weights Mw (weight average) of a least 10,000, containing bifunctional carbonate structural units corresponding to formula (Ia) ##STR1## wherein R.sup.1 and R.sup.2 denote, independently of one another, hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.12 -aralkyl,m stands for an integer from 4 to 7,R.sup.3 and R.sup.4, which are selected individually for each X, denote, independently of one another, hydrogen or C.sub.1 -C.sub.6 -alkyl, andX denotes carbonunder the condition that R.sup.3 and R.sup.4 are both alkyl on at least one X atom andas the only thermo stabilizer, from 0.001 to 1% by weight of a siloxane corresponding to formula (II) ##STR2## wherein R and R' denote, independently of one another, C.sub.1 -C.sub.4 -alkyl or -aryl andx and y stand for the numbers 1,2 or 3 and x+y always add up to 4.

    摘要翻译： 公开了耐热变形性模塑组合物，其包含具有至少10,000的分子量Mw（重均分子）的芳族聚碳酸酯，其含有对应于式（Ia）的双官能碳酸酯结构单元，其中R1和R2独立地表示 另一个是氢，卤素，C 1 -C 8 - 烷基，C 5 -C 6 - 环烷基，C 6 -C 10 - 芳基或C 7 -C 12 - 芳烷基，m代表4-7的整数，R3和R4分别为 每个X彼此独立地表示氢或C 1 -C 6 - 烷基，X表示碳，在R 3和R 4均为至少一个X原子上为烷基且仅为热稳定剂的情况下，为0.001至1％ 重量的对应于式（II）的硅氧烷（II）其中R和R'彼此独立地表示C 1 -C 4 - 烷基或 - 芳基，x和y表示数字1,2或3 并且x + y总是最多为4。

    Two-stage process for the production of polycarbonates based on special dihydroxydiphenylalkanes
    26.
    发明授权
    Two-stage process for the production of polycarbonates based on special dihydroxydiphenylalkanes 失效
    基于特殊二羟基二苯基甲烷生产聚碳酸酯的两阶段工艺

    公开(公告)号：US5104963A

    公开(公告)日：1992-04-14

    申请号：US622058

    申请日：1990-12-04

    申请人： Uwe Westeppe ,  Dieter Freitag ,  Gerd Fengler ,  Ulrich Grigo

    发明人： Uwe Westeppe ,  Dieter Freitag ,  Gerd Fengler ,  Ulrich Grigo

    IPC分类号： C08G64/10 ,  C08G64/00 ,  C08G64/04 ,  C08G64/20 ,  C08G64/30 ,  C08G64/40

    CPC分类号： C08G64/20 ,  C08G64/04 ,  C08G64/30

    摘要： A process for the preparation of a phenol and solvent free polycarbonate resin is disclosed comprising(i) forming an oligomeric polycarbonate comprising structural units based on a diphenol corresponding to ##STR1## wherein R.sup.1 and R.sup.2 independently of one another denote a member selected from the group consisting of a hydrogen atom, a halogen atom, C.sub.1-8 alkyl, C.sub.5-6 cycloalkyl, C.sub.6-10 aryl and C.sub.7-12 aralkyl radicals,m is an integer of from 4 to 7,X represents carbon andR.sup.3 and R.sup.4 are individually selected for each X and independently of one another represent a hydrogen atom or a C.sub.1-6 alkyl radical, with the proviso that for at least one X atom, both R.sup.3 and R.sup.4 are alkyl radicals, and(ii) condensing said oligomeric polycarbonate at a temperature in the range of of 140 to 350.degree. C.

    摘要翻译： 公开了一种制备苯酚和无溶剂聚碳酸酯树脂的方法，其包括（i）形成低聚聚碳酸酯，其包含基于对应于图像的二酚的结构单元，其中R 1和R 2彼此独立地表示选自以下的成员 由氢原子，卤素原子，C 1-8烷基，C 5-6环烷基，C 6-10芳基和C 7-12芳烷基组成，m为4-7的整数，X为碳，R3和R4分别为 对于每个X并且彼此独立地选择，表示氢原子或C 1-6烷基，条件是对于至少一个X原子，R 3和R 4都是烷基，和（ii）将所述低聚物聚碳酸酯在 温度范围为140〜350℃

    Thermoplastic molding compositions of a polysiloxane block copolycarbonate and a polycarbonate based on certain dihydroxydiphenylcycloalkanes
    27.
    发明授权
    Thermoplastic molding compositions of a polysiloxane block copolycarbonate and a polycarbonate based on certain dihydroxydiphenylcycloalkanes 失效
    基于某些二羟基二苯基甲烷的聚硅氧烷嵌段共聚碳酸酯和聚碳酸酯的热塑性成型组合物

    公开(公告)号：US5100960A

    公开(公告)日：1992-03-31

    申请号：US493036

    申请日：1990-03-12

    申请人： Ulrich Grigo ,  Peter Horlacher ,  Dieter Freitag ,  Karsten-Josef Idel ,  Uwe Westeppe ,  Wolfgang Beer ,  Werner Nouvertne

    发明人： Ulrich Grigo ,  Peter Horlacher ,  Dieter Freitag ,  Karsten-Josef Idel ,  Uwe Westeppe ,  Wolfgang Beer ,  Werner Nouvertne

    IPC分类号： C08L69/00 ,  C08L83/10

    CPC分类号： C08L69/00 ,  C08L83/10

    摘要： The invention relates to a thermoplastic molding composition comprising(A) from 10 to 98 parts by weight of a polydiorganosiloxane-polycarbonate block copolymer having a weight average molecular weight of from 10,000 to 200,000 and containing from 75 to 97.5 wt. % of aromatic carbonate structural units and from 25 to 2.5 wt. % of polydiorganosiloxane structural units;(B) from 2 to 90 parts by weight of a thermoplastic, aromatic polycarbonate having a weight average molecular weight of at least 10,000, andcontaining bifunctional carbonate structural units corresponding to ##STR1## wherein R.sup.1 and R.sup.2 independently represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl or C.sub.7 -C.sub.12 aralkyl;m represents an integer of from 4 to 7,R.sup.3 and R.sup.4, which may be selected individually for each X, independently represent hydrogen or C.sub.1 -C.sub.6 alkyl; andx represents carbon,with the proviso that, on at least one atom X, R.sup.3 and R.sup.4 both represent alkyl; and(C) from 0.5 to 30 parts by weight of a rubber having a glass transition temperature of less than -20.degree. C.The composition of the invention is useful for the preparation of injection molded articles having an excellent surface and a particularly good toughness at low temperatures.

    摘要翻译： 本发明涉及一种热塑性模塑组合物，其包含（A）10至98重量份的重均分子量为10,000至200,000的聚二有机硅氧烷 - 聚碳酸酯嵌段共聚物，并且含有75至97.5重量％ ％的芳族碳酸酯结构单元和25〜2.5wt。 ％的聚二有机硅氧烷结构单元; （B）2至90重量份的重均分子量为至少10,000的热塑性芳族聚碳酸酯，并且含有对应于（Ia）的双官能碳酸酯结构单元，其中R 1和R 2独立地表示氢，卤素 C 1 -C 8烷基，C 5 -C 6环烷基，C 6 -C 10芳基或C 7 -C 12芳烷基; m表示4至7的整数，可以为每个X单独选择的R 3和R 4独立地表示氢或C 1 -C 6烷基; 并且x表示碳，条件是在至少一个原子X，R 3和R 4都表示烷基; 和（C）0.5〜30重量份玻璃化转变温度低于-20℃的橡胶。本发明的组合物可用于制备具有优异表面和特别良好韧性的注塑制品 在低温下。

    Stabilized copolycarbonate from dihydroxy diphenyl cycloalkane
    28.
    发明授权
    Stabilized copolycarbonate from dihydroxy diphenyl cycloalkane 失效
    来自二羟基二苯基环己烷的稳定的共聚碳酸酯

    公开(公告)号：US5086159A

    公开(公告)日：1992-02-04

    申请号：US568460

    申请日：1990-08-15

    申请人： Karl-Herbert Fritsch ,  Uwe Westeppe ,  Werner Nouvertne ,  Dieter Freitag

    发明人： Karl-Herbert Fritsch ,  Uwe Westeppe ,  Werner Nouvertne ,  Dieter Freitag

    IPC分类号： C08G64/00 ,  C08G64/06 ,  C08L69/00

    CPC分类号： C08G64/06

    摘要： Copolycarbonates derived from known bisphenols and small quantities of dihydroxydiphenyl cycloalkanes corresponding to formula (I) ##STR1## wherein R.sup.1 and R.sup.2 denote, independently of one another, hydrogen, halogen, preferably chlorine or bromine, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl, preferably phenyl, and C.sub.7 -C.sub.12 aralkyl, preferably phenyl-C.sub.1 -C.sub.4 -alkyl, in particular benzyl,m denotes an integer with a value from 4 to 7, preferably 4 or 5,R.sup.3 and R.sup.4, which are selected independently for each X, denote, independently of one another, hydrogen or C.sub.1 to C.sub.6 alkyl, andX denotes carbon under the condition that R.sup.3 and R.sup.4 are both alkyl on at least one X atoms are disclosed. These copolycarbonates are characterized by their improved processing stability.

    摘要翻译： 衍生自对应于式（I）的已知双酚和少量二羟基二苯基环烷烃的共聚碳酸酯其中R1和R2彼此独立地表示氢，卤素，优选氯或溴，C1-C8烷基，C5- C 6环烷基，C 6 -C 10芳基，优选苯基和C 7 -C 12芳烷基，优选苯基-C 1 -C 4烷基，特别是苄基，m表示4至7，优选4或5的整数，R 3和R 4 对于每个X独立选择，其中R 3和R 4在至少一个X原子上都是烷基的条件下，彼此独立地表示氢或C1-C6烷基，X表示碳。 这些共聚碳酸酯的特征在于其改进的加工稳定性。

    Fire-retardant polycarbonates and polyesters
    29.
    发明授权
    Fire-retardant polycarbonates and polyesters 失效
    阻燃聚碳酸酯和聚酯

    公开(公告)号：US5025065A

    公开(公告)日：1991-06-18

    申请号：US504487

    申请日：1990-04-04

    申请人： Peter Tacke ,  Ulrich Grigo ,  Werner Nouvertne ,  Dieter Freitag ,  Karsten-Josef Idel ,  Uwe Westeppe

    发明人： Peter Tacke ,  Ulrich Grigo ,  Werner Nouvertne ,  Dieter Freitag ,  Karsten-Josef Idel ,  Uwe Westeppe

    IPC分类号： C08K13/00 ,  C08G63/19 ,  C08G63/193 ,  C08G63/199 ,  C08G63/64 ,  C08G64/00 ,  C08G64/06 ,  C08G64/10 ,  C08L67/00 ,  C08L69/00

    CPC分类号： C08G64/06 ,  C08G63/193 ,  C08G63/64

    摘要： Fire-retardant polycarbonates, polyester carbonates and polyesters based on dihydroxydiphenyl cycloalkanes ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, preferably chlorine or bromine, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl, preferably phenyl and C.sub.7 -C.sub.12 aralkyl, preferably phenyl-C.sub.1 -C.sub.4 -alkyl, more especially benzyl,m is an integer of 4 to 7, preferably 4 or 5, R.sup.3 and R.sup.4 may be individually selected for each X and, independently of one another, represent hydrogen or C.sub.1 -C.sub.6 alkyl andX is carbon,with the proviso that, at at least one atom X, R.sup.3 and R.sup.4 are both alkyl,the fire-retardant finish being provided by additives and/or comonomers.

    摘要翻译： 基于二羟基二苯基环烷烃的阻燃聚碳酸酯，聚酯碳酸酯和聚酯其中R1和R2彼此独立地代表氢，卤素，优选氯或溴，C1-C8烷基，C5-C6环烷基，C6- C10芳基，优选苯基和C7-C12芳烷基，优选苯基-C1-C4-烷基，更特别是苄基，m是4至7，优选4或5的整数，R 3和R 4可以各自独立地选自X， 彼此独立地表示氢或C1-C6烷基，X是碳，条件是在至少一个原子X，R 3和R 4均为烷基时，阻燃剂由添加剂和/或共聚单体提供。