利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

212 条记录 (耗时 0.023 秒)

    Polycarbonates of substituted cyclohexylindenebisphenols
    6.
    发明授权
    Polycarbonates of substituted cyclohexylindenebisphenols 失效
    取代环己二烯双酚的聚碳酸酯

    公开(公告)号：US5034458A

    公开(公告)日：1991-07-23

    申请号：US565290

    申请日：1990-08-09

    申请人： Volker Serini ,  Dieter Freitag ,  Karsten-Josef Idel ,  Ulrich Grigo

    发明人： Volker Serini ,  Dieter Freitag ,  Karsten-Josef Idel ,  Ulrich Grigo

    IPC分类号： C08G64/00 ,  C08G64/06 ,  C08G64/10 ,  C08L69/00

    CPC分类号： C08G64/06 ,  C08L69/00

    摘要： Aromatic polycarbonates having weight average molecular weight M.sub.w of at least 10,000 which contain bifunctional carbonate structural units corresponding to general formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 independently represent hydrogen, C.sub.1 -C.sub.12 hdyrocarbon or halogen radicals; andR.sup.5, R.sup.6, R.sup.7, R.sup.8 and R.sup.9 independently represent hydrogen or C.sub.1 -C.sub.12 hydrocarbon radicals, one or R.sup.5 and R.sup.9 representing hydrogen and the other C.sub.1 -C.sub.12 hydrocarbon radical;in amounts of from 100 to 1 mole % based on the total amount of difunctional carbonate structural units in the polycarbonate were found to be useful for thermoplast processing of compositions which are characterized by their improved toughness and high heat deflection temperature.

    摘要翻译： 重均分子量＆gt; Mw至少为10,000的芳族聚碳酸酯含有对应于通式（I）的双官能碳酸酯结构单元：其中R 1，R 2，R 3，R 4独立地表示氢，C 1 -C 12羟基或 卤素自由基 R5，R6，R7，R8和R9独立地表示氢或C1-C12烃基，一个或R5和R9代表氢和另一个C1-C12烃基; 发现聚碳酸酯中双官能碳酸酯结构单元的总量为100至1摩尔％可用于组合物的热塑性加工，其特征在于其改进的韧性和高的热变形温度。

    Polycarbonate of polysubstituted cyclohexylidene bisphenols
    7.
    发明授权
    Polycarbonate of polysubstituted cyclohexylidene bisphenols 失效
    多取代亚环己基双酚的聚碳酸酯

    公开(公告)号：US5021542A

    公开(公告)日：1991-06-04

    申请号：US450655

    申请日：1989-12-13

    申请人： Volker Serini ,  Dieter Freitag ,  Karsten-Josef Idel ,  Uwe Westeppe ,  Ulrich Grigo ,  Klaus-Christian Paetz

    发明人： Volker Serini ,  Dieter Freitag ,  Karsten-Josef Idel ,  Uwe Westeppe ,  Ulrich Grigo ,  Klaus-Christian Paetz

    IPC分类号： C08G64/00 ,  C08G64/06

    CPC分类号： C08G64/06

    摘要： Thermoplastic aromatic polycarbonates having average molecular weights Mw of at least 10,000 which contain bifunctional carbonate structural units corresponding formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 independently of one another represent hydrogen, a C.sub.1-12 hydrocarbon, halogen,Y.sup.1, Y.sup.2, Y.sup.3 independently of one another represent hydrogen,C.sub.1-5 alkyl, a C.sub.6-12 hydrocarbon radical,at least two of the substituents Y.sup.1, Y.sup.2 and Y.sup.3 not being hydrogen and at least one of the substituents Y.sup.1, Y.sup.2 and Y.sup.3 being C.sub.1-5 alkyl,in quantities of from 100 to 1 mol-%, based on the total quantity of difunctional carbonate structural units in the polycarbonate.

    摘要翻译： 平均分子量＆upbar＆Mw至少为10,000的热塑性芳族聚碳酸酯含有对应式（I）的双官能碳酸酯结构单元，其中R 1，R 2，R 3，R 4彼此独立地表示氢，C1-12 烃，卤素，Y 1，Y 2，Y 3彼此独立地表示氢，C 1-5烷基，C 6-12烃基，至少两个取代基Y1，Y2和Y3不为氢，并且至少一个取代基Y1 ，Y2和Y3为C1-5烷基，其量为100至1mol％，基于聚碳酸酯中双官能碳酸酯结构单元的总量。

    Polycarbonate mixtures in optical applications
    9.
    发明授权
    Polycarbonate mixtures in optical applications 失效
    光学应用中的聚碳酸酯混合物

    公开(公告)号：US5132154A

    公开(公告)日：1992-07-21

    申请号：US531230

    申请日：1990-05-31

    申请人： Uwe Westeppe ,  Gunther Weymans ,  Dieter Freitag ,  Karsten-Josef Idel

    发明人： Uwe Westeppe ,  Gunther Weymans ,  Dieter Freitag ,  Karsten-Josef Idel

    IPC分类号： G02B1/04 ,  C08L69/00 ,  G11B7/24 ,  G11B7/253

    CPC分类号： C08L69/00 ,  Y10T428/31507

    摘要： An article for an optical application is disclosed comprisinga) about 0.1 to 99.9 wt. % of a thermoplastic, aromatic polycarbonate resin containing carbonate structural units corresponding to (Ia): ##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 are selected individually for each X, independently represent hydrogen or C.sub.1 -C.sub.6 alkyl; andX represents a carbon atom; provided that R.sup.3 and R.sup.4 both represent alkyl on at least one X atom; andb) from 99.9 to 0.1 wt. % of at least one thermoplastic polycarbonate other than component (a).

    摘要翻译： 公开了一种用于光学应用的物品，其包含：a）约0.1至99.9wt。 含有对应于（Ia）的碳酸酯结构单元的热塑性芳族聚碳酸酯树脂的％：其中R1和R2独立地表示氢，卤素，C1-C8烷基，C5-C6环烷基，C6-C10芳基或C7 -C12芳烷基; m表示4〜7的整数， 对于每个X单独选择的R 3和R 4独立地表示氢或C 1 -C 6烷基; X表示碳原子; 条件是R3和R4都表示至少一个X原子上的烷基; 和b）99.9至0.1wt。 除了组分（a）以外的至少一种热塑性聚碳酸酯的％。