公开(公告)号：US20070238846A1

公开(公告)日：2007-10-11

申请号：US11401171

申请日：2006-04-10

申请人： Gary Davis ,  James Mahood ,  Matthew Pixton ,  Niles Rosenquist ,  James Silva ,  Joshua Stone

发明人： Gary Davis ,  James Mahood ,  Matthew Pixton ,  Niles Rosenquist ,  James Silva ,  Joshua Stone

IPC分类号： C08G77/448 ,  C08L83/04

CPC分类号： C08G64/186 ,  C08G77/448 ,  C08L83/10

摘要： Disclosed herein are polysiloxane-polycarbonate copolymer articles. In one embodiment, a ⅛th inch thick bar formed from the thermoplastic composition has a B-Y ratio of less than or equal to about 1.75. This article, which has a dimension that is greater than or equal to 1.5 cm, comprises the thermoplastic composition which comprises a polysiloxane-polycarbonate copolymer, wherein the copolymer comprises repeating diorganosiloxane units of formula (1): wherein each R is, independently, a C1-13 monovalent organic group; and E has an average value of 20 to 35.

摘要翻译： 本文公开的是聚硅氧烷 - 聚碳酸酯共聚物制品。 在一个实施方案中，由热塑性组合物形成的1/8英寸厚的棒具有小于或等于约1.75的B-Y比。 具有大于或等于1.5cm的尺寸的该制品包含包含聚硅氧烷 - 聚碳酸酯共聚物的热塑性组合物，其中所述共聚物包含重复式（1）的二有机硅氧烷单元：其中每个R独立地为 C 1-13 一价有机基团; E的平均值为20〜35。

公开(公告)号：US20070060716A1

公开(公告)日：2007-03-15

申请号：US11225506

申请日：2005-09-13

申请人： Bala Ambravaneswaran ,  Matthew Pixton

发明人： Bala Ambravaneswaran ,  Matthew Pixton

IPC分类号： C08L69/00 ,  C08L83/04

CPC分类号： C08L69/00 ,  C08L25/12 ,  C08L83/10 ,  C08L2666/02

摘要： A thermoplastic composition comprises a resin composition comprising a polycarbonate having a weight averaged molecular weight of greater than or equal to 30,000 as measured using gel permeation chromatography, a polysiloxane-polycarbonate comprising 1 to 50 weight percent of siloxane units; and a SAN copolymer, wherein the amounts of polycarbonate, polysiloxane-polycarbonate, and SAN copolymer are selected such that fatigue failure for the thermoplastic composition occurs at greater than or equal to 70,000 cycles at a pressure of 28.2 MPa and a frequency of 5 Hz according to ASTM D638-03 type I, and the viscosity of the thermoplastic composition is less than or equal to 112 Pa-s when measured at a shear rate of 6,000 sec−1 and at 300° C. according to ASTM D4440-01. A method of making the thermoplastic is also disclosed.

摘要翻译： 热塑性组合物包含树脂组合物，其包含使用凝胶渗透色谱法测量的重均分子量大于或等于30,000的聚碳酸酯，包含1至50重量％的硅氧烷单元的聚硅氧烷 - 聚碳酸酯; 和SAN共聚物，其中选择聚碳酸酯，聚硅氧烷 - 聚碳酸酯和SAN共聚物的量使得在28.2MPa的压力和5Hz的频率下，热塑性组合物的疲劳破坏发生在大于或等于70,000个循环 根据ASTM D638-03型I，当在6,000秒-1的剪切速率和300℃下测量时，热塑性组合物的粘度小于或等于112Pa·s，根据 至ASTM D4440-01。 还公开了制造热塑性塑料的方法。

公开(公告)号：US20070082989A1

公开(公告)日：2007-04-12

申请号：US11246651

申请日：2005-10-07

申请人： Katherine Glasgow ,  Brian Mullen ,  Matthew Pixton ,  Philippe Schottland

发明人： Katherine Glasgow ,  Brian Mullen ,  Matthew Pixton ,  Philippe Schottland

IPC分类号： C08K5/00

CPC分类号： C08K5/109 ,  C08L69/00

摘要： A thermoplastic composition comprises a polycarbonate, an ionizing radiation stabilizing additive, and a poly-substituted aromatic compound of formula: wherein X is an aryl group; Y is a non-hydrogen substituent group, a is 1 to 4, b is 0 to 4, a+b is less than or equal to 4, and c is 0 or 1; and wherein the amounts and identities of the polycarbonate, ionizing radiation stabilizing additive, and poly-substituted aromatic compound are selected such that a molded article having a thickness of 3.18 millimeters and comprising the thermoplastic composition has, after exposure to gamma radiation at 83 kGy and when measured according to ASTM D1925-70, an increase in yellowness index (dYI) of less than or equal to 50, when compared to the unexposed thermoplastic composition.

摘要翻译： 热塑性组合物包含聚碳酸酯，电离辐射稳定添加剂和下式的多取代芳族化合物：其中X是芳基; Y是非氢取代基，a是1至4，b是0至4，a + b小于或等于4，c是0或1; 并且其中选择聚碳酸酯，电离辐射稳定添加剂和多取代芳族化合物的量和身份，使得具有3.18毫米厚度且包含该热塑性组合物的模塑制品在暴露于83kGy的γ辐射之后，以及 当根据ASTM D1925-70测量时，与未曝光的热塑性组合物相比，黄度指数（dYI）的增加小于或等于50。

公开(公告)号：US20050101757A1

公开(公告)日：2005-05-12

申请号：US10950100

申请日：2004-09-24

申请人： Katherine Glasgow ,  Adam Zerda ,  Dibakar Dhara ,  Vikram Kumar ,  Matthew Pixton

发明人： Katherine Glasgow ,  Adam Zerda ,  Dibakar Dhara ,  Vikram Kumar ,  Matthew Pixton

IPC分类号： C08L67/00 ,  C08L67/04 ,  C08L69/00 ,  C08L83/10 ,  C08K5/07 ,  C08L9/00

CPC分类号： C08L83/10 ,  C08L67/00 ,  C08L69/00 ,  C08L2205/02 ,  C08L2666/02 ,  C08L2666/18 ,  C08L83/00

摘要： A composition includes a polycarbonate-polysiloxane block copolymer that has at least one polycarbonate block and at least one polysiloxane block, and a surface modifying agent that includes at least one polysiloxane segment. Increased levels of the surface modifying agent can be incorporated without compromising high transmittance and low haze. The compositions also exhibit improved hemocompatibility and are therefore useful for a variety of articles that may contact blood.

摘要翻译： 组合物包括具有至少一个聚碳酸酯嵌段和至少一个聚硅氧烷嵌段的聚碳酸酯 - 聚硅氧烷嵌段共聚物和包含至少一个聚硅氧烷链段的表面改性剂。 可以并入表面改性剂的水平增加而不损害高透光率和低雾度。 组合物还表现出改善的血液相容性，因此可用于可接触血液的各种制品。

公开(公告)号：US20080009571A1

公开(公告)日：2008-01-10

申请号：US11680382

申请日：2007-02-28

申请人： Matthew Pixton ,  Olivier Sevvet ,  Dominique Arnould ,  Peter Vollenberg ,  Paul Honigfort ,  Christopher Hein

发明人： Matthew Pixton ,  Olivier Sevvet ,  Dominique Arnould ,  Peter Vollenberg ,  Paul Honigfort ,  Christopher Hein

IPC分类号： C08K5/34 ,  C08G18/62 ,  C08K5/3415 ,  C08L67/02 ,  C08K5/3435 ,  C08K5/23

CPC分类号： C08L33/08 ,  C08K3/013 ,  C08K5/0041 ,  C08L25/12 ,  C08L33/06 ,  C08L51/04 ,  C08L53/00 ,  C08L67/02 ,  C08L69/00 ,  C08L2666/02

摘要： A molding composition has a bulk resin component formed from: a) 5 to 93 percent by weight of cycloaliphatic polyester resin such as poly(1,4-cyclohexane-dimethanol-1,4-dicarboxylate having a melt viscosity of at least 6000 poise; b) 5 to 93 percent by weight of an acrylate polymer or co-polymer; and c) 2 to 30 percent by weight of an impact modifier with a a shell comprising a repeating units derived from a C1-12 alkyl(meth)acrylate and a rubbery core having weatherability properties. The composition may further include a polycarbonate polymer or a styrene-acrylonitrile polymer as a phase compatabilizer as well as other conventional additives such as pigments, mineral fillers, antioxidants and the like. The composition has improved ductility, impact strength and weatherability.

摘要翻译： 模塑组合物具有由以下成分形成的本体树脂成分：a）5-93重量％的脂环族聚酯树脂，例如熔体粘度至少为6000泊的聚（1,4-环己烷 - 二甲醇-1,4-二羧酸酯）; b）5-93重量％的丙烯酸酯聚合物或共聚物; 和c）2至30重量％的抗冲改性剂，其包含衍生自（甲基）丙烯酸C1-12烷基酯的重复单元和具有耐候性的橡胶核的壳。 该组合物还可以包括聚碳酸酯聚合物或作为相分解剂的苯乙烯 - 丙烯腈聚合物以及其它常规添加剂，例如颜料，矿物填料，抗氧化剂等。 该组合物具有改善的延展性，冲击强度和耐候性。