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1. 发明授权

US4552911A Polycarbonate molding compositions having improved flame retardance 失效
标题翻译：具有改进的阻燃性的聚碳酸酯模塑组合物
公开(公告)号：US4552911A
公开(公告)日：1985-11-12
申请号：US462152
申请日：1983-01-28
申请人： Wolfgang Cohnen , Klaus Kircher , Peter R. Muller , Sivaram Krishnan , Dieter Neuray
发明人： Wolfgang Cohnen , Klaus Kircher , Peter R. Muller , Sivaram Krishnan , Dieter Neuray
IPC分类号： C08L69/00 , C08K3/00 , C08K3/105 , C08K5/00 , C08K5/098 , C08K5/16 , C08K5/34 , C08K5/3417 , C08K5/42 , C08L67/00 , C08K3/10 , C08K5/56
CPC分类号： C08K5/3417 , C08K3/0083 , C08K3/24 , C08K5/04 , C08K5/09 , C08K5/098 , C08K5/34 , C08K5/42
摘要： The present invention relates to polycarbonate molding compositions containing additives of alkali or alkaline earth metal salts, tetrahalogenophthalimides and optional glass fibers, characterized in that they contain additive amounts of bromine.
摘要翻译：本发明涉及含有碱金属或碱土金属盐，四卤代邻苯二甲酰亚胺和任选的玻璃纤维的添加剂的聚碳酸酯模塑组合物，其特征在于它们含有添加量的溴。

2. 发明授权

US4503213A Process for the preparation of polycarbonates having N-alkyl-perfluoroalkyl sulfonamide terminal groups 失效
标题翻译：制备具有N-烷基 - 全氟烷基磺酰胺端基的聚碳酸酯的方法
公开(公告)号：US4503213A
公开(公告)日：1985-03-05
申请号：US506189
申请日：1983-06-21
申请人： Sivaram Krishnan , Dieter Neuray , Wolfgang Cohnen , Klaus Geisler
发明人： Sivaram Krishnan , Dieter Neuray , Wolfgang Cohnen , Klaus Geisler
IPC分类号： C08G63/00 , C08G64/00 , C08G64/14 , C08G63/62
CPC分类号： C08G64/14
摘要： The instant invention relates to a process for the preparation of linear aromatic polycarbonate resins by the known two-phase interfacial process and is directed to the use of perfluoroalkyl sulfonamides as chain stoppers in said process and is further directed to the polycarbonate resins obtainable by the process which resins are suitable in the preparation of thermoplastic molding compositions.
摘要翻译：本发明涉及通过已知的两相界面方法制备线性芳族聚碳酸酯树脂的方法，并且涉及在所述方法中使用全氟烷基磺酰胺作为链终止剂，并进一步涉及可通过该方法获得的聚碳酸酯树脂哪些树脂适合于制备热塑性模塑组合物。

3. 发明授权

US4471104A Process for the preparation of polycarbonates having sulfonanilide terminal groups 失效
标题翻译：制备具有磺酰苯胺端基的聚碳酸酯的方法
公开(公告)号：US4471104A
公开(公告)日：1984-09-11
申请号：US439091
申请日：1982-11-04
申请人： Sivaram Krishnan , Wolfgang Cohnen , Dieter Neuray
发明人： Sivaram Krishnan , Wolfgang Cohnen , Dieter Neuray
IPC分类号： C08G63/00 , C08G64/00 , C08G64/14 , C08G63/62
CPC分类号： C08G64/14
摘要： The present invention relates to the preparation of aromatic polycarbonates by the known two-phase interface process, from diphenols characterized in that aromatic sulfonanilides are used as chain terminators in amounts of about 2 mol % to 20 mol %, preferably in amounts of about 2.5 mol % to 10 mol %, relative to mols of diphenols employed. In addition, the present invention relates to the aromatic polycarbonates obtainable by the process according to the invention. The products of this invention have been found to have better self extinguishing property compared to polycarbonates without sulfonamide end groups.
摘要翻译：本发明涉及通过已知的两相界面方法由二酚制备芳族聚碳酸酯，其特征在于芳香族磺酰苯胺用量为约2mol％至20mol％，优选约2.5mol 相对于所用二酚的摩尔数为10〜10摩尔％。此外，本发明涉及通过本发明的方法获得的芳族聚碳酸酯。发现本发明的产品与不含磺酰胺端基的聚碳酸酯相比具有更好的自熄性能。

4. 发明授权

US06367930B1 Process for preparing a photochromic lens 有权
标题翻译：光致变色镜片的制备方法
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。

5. 再颁专利

USRE37200E1 Color-stable polycarbonate composition and articles molded therefrom 有权
标题翻译：颜色稳定的聚碳酸酯组合物和由其模制的制品
公开(公告)号：USRE37200E1
公开(公告)日：2001-05-29
申请号：US09379515
申请日：1999-08-23
申请人： Kevin F. Dunay , Winfried G. Paul , Sivaram Krishnan
发明人： Kevin F. Dunay , Winfried G. Paul , Sivaram Krishnan
IPC分类号： C08K534
CPC分类号： C08K5/34924 , C08K5/1345 , C08K5/3475 , C08K5/375 , Y10T428/31507 , C08L69/00
摘要： A thermoplastic polycarbonate molding composition free from organo phosphorus compounds and having an improved resistance to discoloration caused by exposure to High Intensity Discharge (HID) light and heat is disclosed. Accordingly, the molding composition contains (co)polycarbonate resin, a dimeric benzotriazole and an ester of a 3,5-di-tert-butyl-4-hydroxyhydrocinnamic acid. In a preferred embodiment, a sheet made of (co)polycarbonate resin is rendered improved resistance to discoloration by having applied to at least one of its surfaces an adherent protective film prepared from the polycarbonate composition of the invention.
摘要翻译：公开了一种不含有机磷化合物的热塑性聚碳酸酯模塑组合物，并且具有改善的抗暴露于高强度放电（HID）光和热的变色性。因此，成型组合物含有（共）聚碳酸酯树脂，二聚苯并三唑和3,5-二叔丁基-4-羟基氢化肉桂酸的酯。在优选的实施方案中，通过将至少一个表面施加到由本发明的聚碳酸酯组合物制备的粘合保护膜，由（共）聚碳酸酯树脂制成的片材具有改进的抗变色性。

6. 发明授权

US5705546A Polycarbonate compositions having improved release properties 失效
标题翻译：具有改进的脱模性能的聚碳酸酯组合物
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。

7. 发明授权

US5508344A Low temperature drying of impact modified polycarbonate/polyester compositions 失效
标题翻译：抗冲改性聚碳酸酯/聚酯组合物的低温干燥
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。

8. 发明授权

US5194495A Pigmented polycarbonate composition having high impact strength and good cosmetics 失效
标题翻译：具有高冲击强度和良好化妆品的着色聚碳酸酯组合物
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。

9. 发明授权

US5187211A Gamma radiation resistant polycarbonate compositions 失效
标题翻译：耐辐射聚碳酸酯组合物
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。

10. 发明授权

US4446297A Thermoplastic copolycarbonate from halogen free aromatic diol and halogenated thiodiphenol 失效
标题翻译：无卤芳族二醇和卤代硫代苯酚的热塑性共聚碳酸酯
公开(公告)号：US4446297A
公开(公告)日：1984-05-01
申请号：US366453
申请日：1982-04-07
申请人： Sivaram Krishnan , Arthur L. Baron
发明人： Sivaram Krishnan , Arthur L. Baron
IPC分类号： C08G63/60 , C08G64/08 , C08G63/62
CPC分类号： C08G64/08 , C07C317/00 , C07C323/00
摘要： Polycarbonates are provided having improved critical thickness values and flame retardant characteristics based upon an aromatic diol and a halogenated thiodiphenol represented by the structural formula ##STR1## wherein X.sub.1 and X.sub.2 are halogen and "a"+"b"=1 to 8; Y.sub.1 and Y.sub.2 are alkyl groups having 1 to 4 carbon atoms; and "c"+"d"=0 to 7. By incorporating an effective amount of the aromatic halogenated thiodiphenol, based upon the total aromatic diol content, into the polymer the critical thickness and flame retardant characteristics of the polycarbonate are substantially improved, a process for the preparation of the monomer of said structural formula is likewise provided.
摘要翻译：提供具有改进的临界厚度值和基于由结构式“IMAGE”表示的卤代硫代二酚的改进的临界厚度值和阻燃特性的聚碳酸酯，其中X1和X2是卤素，“a”+“b”= 1至8; Y1和Y2是具有1至4个碳原子的烷基; 和“c”+“d”= 0至7.通过将有效量的芳族卤代硫代二酚基于总芳族二醇含量加入到聚合物中，聚碳酸酯的临界厚度和阻燃特性显着提高，同样提供制备所述结构式单体的方法。

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