公开(公告)号：US4650823A

公开(公告)日：1987-03-17

申请号：US766746

申请日：1985-08-16

申请人： Sivaram Krishnan ,  Ronald L. Price ,  Roger J. White

发明人： Sivaram Krishnan ,  Ronald L. Price ,  Roger J. White

IPC分类号： C08K3/22 ,  C08L69/00

CPC分类号： C08K3/22 ,  C08L69/00

摘要： The present invention is directed to a thermoplastic molding composition comprising a polycarbonate resin and a pigmenting amount of black iron oxide. The invention is predicated on the surprising findings that this composition yields stable, streaking-free molded articles. A preferred embodiment of the invention comprises a flame retarding agent and iron oxide based pigment selected from the group consisting of black iron oxide and red iron oxide, said flame retarding agent comprising polytetrafluoroethylene; the composition is characterized in that it is streaking-free and in that its flammability rating is at least 5V-1/8" in accordance with UL-94.

摘要翻译： 本发明涉及包含聚碳酸酯树脂和着色量的黑色氧化铁的热塑性模塑组合物。 本发明基于令人惊奇的发现，该组合物产生稳定的无条纹模塑制品。 本发明的优选实施方案包括阻燃剂和选自黑色氧化铁和红色氧化铁的氧化铁基颜料，所述阻燃剂包括聚四氟乙烯; 该组合物的特征在于它是无条纹的，并且其可燃性等级根据UL-94至少为5V-1/8“。

公开(公告)号：US4837243A

公开(公告)日：1989-06-06

申请号：US271810

申请日：1988-11-15

申请人： Roger J. White ,  Sivaram Krishnan

发明人： Roger J. White ,  Sivaram Krishnan

IPC分类号： C08J9/06 ,  C08J9/10

CPC分类号： C08J9/104

摘要： A Chemical Blowing Agent (CBA) concentrate was developed comprising a modifying agent and a chemical blowing agent. The CBA is characterized in that its decomposition products contain a primary amine. The modifying agent is a blend of a maleic anhydride copolymer and a butadiene based rubber. It was surprisingly found that resin degradation which often accompanies foam moldings using a CBA of the present type and is expressed in terms of a reduction in the molecular weight of the resin, is much reduced upon the incorporation of the modifying agent and chemical blowing agent of the invention. The concentrate may optionally further comprise a polymeric resin component.

公开(公告)号：US4772655A

公开(公告)日：1988-09-20

申请号：US56577

申请日：1987-06-01

申请人： Sivaram Krishnan ,  Roger J. White ,  Ronald L. Price

发明人： Sivaram Krishnan ,  Roger J. White ,  Ronald L. Price

IPC分类号： C08K3/16 ,  C08K3/36 ,  C08L69/00 ,  C08K3/10

CPC分类号： C08K3/16 ,  C08K3/36 ,  C08L69/00

摘要： The present invention is directed to flame retardant, pigmented polycarbonate molding compositions which properties include both good flame resistance properties and virtual freedom from streaking. The compositions are particularly suitable for use in molding machines using hot runner tools. The composition of the invention comprise a thermoplastic aromatic polycarbonate resin, a flame retarding agent, pigments, polytetrafluoroethylene--ASTM Type 3--and an amount of finely divided hydrophobic silicon dioxide sufficient for providing streaking-free molded articles.

摘要翻译： 本发明涉及阻燃着色聚碳酸酯模塑组合物，其特性包括良好的阻燃性能和虚拟的无条纹条纹。 该组合物特别适用于使用热流道工具的成型机。 本发明的组合物包含热塑性芳族聚碳酸酯树脂，阻燃剂，颜料，聚四氟乙烯-E3类型3-以及足以提供无条纹模塑制品的细碎疏水性二氧化硅的量。

公开(公告)号：US4851453A

公开(公告)日：1989-07-25

申请号：US305826

申请日：1989-02-02

申请人： Roger J. White ,  Sivaram Krishnan

发明人： Roger J. White ,  Sivaram Krishnan

IPC分类号： C08J9/10

CPC分类号： C08J9/104

摘要： A Chemical Blowing Agent (CBA) concentrate was developed comprising a modifying agent and a chemical blowing agent. The CBA is characterized in that its decomposition products contain a primary amine. The modifying agent is a blend of a maleic anhydride copolymer and a butadiene based rubber. It was surprisingly found that resin degradation which often accompanies foam moldings using a CBA of the present type and is expressed in terms of a reduction in the molecular weight of the resin, is much reduced upon the incorporation of the modifying agent and chemical blowing agent of the invention. The concentrate may optionally further comprise a polymeric resin component.

摘要翻译： 开发了包含改性剂和化学发泡剂的化学发泡剂（CBA）浓缩物。 CBA的特征在于其分解产物含有伯胺。 改性剂是马来酸酐共聚物和丁二烯基橡胶的共混物。 令人惊奇地发现，通常伴随着使用本发明的CBA的泡沫塑料成型并且根据树脂的分子量的降低表示的树脂降解，在引入改性剂和化学发泡剂 本发明。 浓缩物可以任选地进一步包含聚合树脂组分。

公开(公告)号：US4737523A

公开(公告)日：1988-04-12

申请号：US64168

申请日：1987-06-19

申请人： Roger J. White ,  Sivaram Krishnan ,  Wolfgang J. Siebourg

发明人： Roger J. White ,  Sivaram Krishnan ,  Wolfgang J. Siebourg

IPC分类号： C08J9/00 ,  C08J9/10 ,  C08J9/06

CPC分类号： C08J9/0061 ,  C08J9/104 ,  C08J2367/02 ,  C08J2369/00

摘要： Foamable, thermoplastic molding composition exhibiting an improved level of impact resistance is provided. The composition, which is suitable for the preparation of expanded molded parts, comprise a thermoplastic resin, preferably at least one selected from a group consisting of polycarbonate, polyalkylene terephthalate, aromatic polyester and polyester carbonate, a nucleating agent, a chemical blowing agent and an anhydride. It was unexpectedly found that the composition is suitable for the molding of articles having an improved level of impact resistance.

摘要翻译： 提供了具有改进的抗冲击性水平的可发泡热塑性模塑组合物。 适用于制备发泡成型部件的组合物包括热塑性树脂，优选选自聚碳酸酯，聚对苯二甲酸亚烷基酯，芳族聚酯和聚酯碳酸酯，成核剂，化学发泡剂和 酐。 意外地发现该组合物适合于具有改善的耐冲击性水平的制品的模制。

公开(公告)号：US06367930B1

公开(公告)日：2002-04-09

申请号：US09476251

申请日：1999-12-30

申请人： Pia I. Santelices ,  James N. Rieck ,  Jack C. Chan ,  Sivaram Krishnan ,  William G. Curtis ,  Robert Allen Pyles

发明人： Pia I. Santelices ,  James N. Rieck ,  Jack C. Chan ,  Sivaram Krishnan ,  William G. Curtis ,  Robert Allen Pyles

IPC分类号： G02C710

CPC分类号： G02B5/23

摘要： A process for making a photochromic optical lens is disclosed. In a first embodiment of the process a multi-plied laminate, containing a ply of photochromic thermoplastic polyurethane (herein “TPU”) and a ply containing thermoplastic polycarbonate, is first placed in the cavity of a suitable mold. The ply that contains polycarbonate resin is placed facing the cavity. Thermoplastic polycarbonate resin is then injected into the cavity. In a second embodiment, referred to as an over-mold method, polycarbonate is first injection molded into a molding cavity to form a substrate. Photochromic TPU is, in a subsequent step, injected into the cavity to form a superstrate overlay. In both embodiments, the articles thus molded are suitable for the preparation of optical lenses.

摘要翻译： 公开了制造光致变色光学透镜的方法。 在该方法的第一实施方案中，首先将含有一层光致变色热塑性聚氨酯（本文中为“TPU”）和一层含热塑性聚碳酸酯的多层叠层材料放置在合适的模具的空腔中。 包含聚碳酸酯树脂的层被放置成面向空腔。 然后将热塑性聚碳酸酯树脂注入腔中。 在称为过模制方法的第二实施方案中，首先将聚碳酸酯注塑成型腔以形成基材。 在随后的步骤中，光致变色TPU被注入空腔中以形成覆盖层。 在这两个实施例中，如此模制的制品适用于制备光学透镜。

公开(公告)号：US5705546A

公开(公告)日：1998-01-06

申请号：US662572

申请日：1996-06-13

申请人： Sivaram Krishnan ,  James B. Johnson

发明人： Sivaram Krishnan ,  James B. Johnson

IPC分类号： C08K5/1515 ,  C08L69/00 ,  C08K5/15

CPC分类号： C08K5/1515 ,  C08L69/00

摘要： A thermoplastic molding composition having improved release properties is disclosed. The composition contains a polycarbonate and an additive amount of an epoxy conforming structurally to ##STR1## where R is a member selected from the group consisting of glyceryl and trimethyl propyl radicals, x is 0 to 20 and R' is a C.sub.1-4 alkyl radical.

摘要翻译： 公开了具有改进的脱模性能的热塑性模塑组合物。 组合物含有聚碳酸酯和结构上符合的环氧树脂的添加量，其中R是选自甘油基和三甲基丙基的成员，x是0至20，R'是C 1-4烷基 。

公开(公告)号：US5508344A

公开(公告)日：1996-04-16

申请号：US343797

申请日：1994-11-22

申请人： James P. Mason ,  William B. Villee ,  Sivaram Krishnan

发明人： James P. Mason ,  William B. Villee ,  Sivaram Krishnan

IPC分类号： B29B9/16 ,  B29B13/06 ,  C08L51/04 ,  C08L55/02 ,  C08L67/00 ,  C08L67/02 ,  C08L69/00 ,  C08L83/04 ,  C08L83/06 ,  C08L101/00 ,  C08K5/15 ,  C08K5/54

CPC分类号： C08L67/02 ,  C08L69/00 ,  C08L51/04 ,  C08L55/02 ,  C08L83/04

摘要： A thermoplastic molding composition comprising a resinous blend of polycarbonate, polyester and an impact modifier and an additive amount of a siloxane compound containing a pendant oxirane group is disclosed. It was surprisingly and unexpectedly discovered that unlike the corresponding compositions which contain no siloxane compound, the inventive composition is capable of being dried at low temperatures prior to molding and still maintain high impact strength.

摘要翻译： 公开了一种热塑性模塑组合物，其包含聚碳酸酯，聚酯和抗冲改性剂的树脂混合物和含有环氧乙烷基团的硅氧烷化合物的添加量。 出人意料地意外地发现，与不含硅氧烷化合物的相应组合物不同，本发明组合物能够在模制之前在低温下干燥并且仍然保持高冲击强度。

公开(公告)号：US5194495A

公开(公告)日：1993-03-16

申请号：US919617

申请日：1992-07-24

申请人： Charles E. Lundy ,  Douglas G. Powell ,  Sivaram Krishnan

发明人： Charles E. Lundy ,  Douglas G. Powell ,  Sivaram Krishnan

IPC分类号： C08L69/00

CPC分类号： C08L69/00

摘要： A pigmented thermoplastic molding composition is disclosed comprising(i) about 90 to 98 percent of an aromatic polycarbonate,(ii) about 1 to 9 percent of ABS, and(iii) about 1 to 9 percent of a grafted olefinic copolymer which is a graft polymer of one or more unsaturated dicarboxylic acid or the anhydride of said acid on an olefinic copolymer backbone.The composition is noted to have good mechanical properties and the articles molded therefrom have good cosmetics.

摘要翻译： 公开了着色的热塑性模塑组合物，其包含（i）约90至98％的芳族聚碳酸酯，（ii）约1至9％的ABS，和（iii）约1至9％的接枝的烯烃共聚物，其为接枝 一种或多种不饱和二羧酸的聚合物或所述酸的酸酐在烯烃共聚物主链上。 注意组合物具有良好的机械性能，并且由其模制的制品具有良好的化妆品。

公开(公告)号：US5187211A

公开(公告)日：1993-02-16

申请号：US305301

申请日：1989-02-01

申请人： Charles E. Lundy ,  Sivaram Krishnan ,  Gerald L. Robbins ,  Rick L. Archey

发明人： Charles E. Lundy ,  Sivaram Krishnan ,  Gerald L. Robbins ,  Rick L. Archey

IPC分类号： C08K5/06 ,  C08K5/151

CPC分类号： C08K5/06 ,  C08K5/151

摘要： The invention relates to thermoplastic polycarbonate molding compositions which are rendered resistant to gamma-radiation by incorporating therewith about 0.1 to about 5 percent by weight of a stabilizing agent selected from the group consisting of ##STR1## wherein R is a hydrogen or a halogen atom or a C.sub.1 -C.sub.10 alkyl, a C.sub.6 -C.sub.10 alkyl, a C.sub.6 -C.sub.10 aryl, C.sub.1 -C.sub.22 acyl, C.sub.6 -C.sub.18 alkylaryl or a C.sub.4 -C.sub.10 cycloalkyl radical, n is an integer of at least 1 and preferably 1 to about 100 and Y and Y.sup.1 independently are a hydrogen atom, a C.sub.6 -C.sub.10 aryl, C.sub.1 -C.sub.10 alkyl or a C.sub.6 -C.sub.18 alkylaryl or a C.sub.6 -C.sub.18 arylalkyl radical or ##STR2## wherein m is 1 or 3-6, R.sub.1, R.sub.2 and R.sub.3 independently are a hydrogen atom or a C.sub.1 -C.sub.10 alkyl, C.sub.6 -C.sub.10 aryl or a C.sub.6 -C.sub.18 alkylaryl radical.

摘要翻译： 本发明涉及热塑性聚碳酸酯模塑组合物，其通过加入约0.1至约5重量％的选自下组的稳定剂，使其具有抗γ辐射的抗性。 其中R是氢或卤素原子或C 1 -C 10烷基，C 6 -C 10烷基，C 6 -C 10芳基，C 1 -C 22酰基，C 6 -C 18烷基芳基或C 4 -C 10环烷基，n是 至少1，优选1至约100，Y和Y 1独立地为氢原子，C 6 -C 10芳基，C 1 -C 10烷基或C 6 -C 18烷基芳基或C 6 -C 18芳烷基或III。 或 IV。 或 V.或 VI。 其中m为1或3-6，R 1，R 2和R 3独立地为氢原子或C 1 -C 10烷基，C 6 -C 10芳基或C 6 -C 18烷基芳基。