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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
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.
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公开(公告)号：US4772655A
公开(公告)日：1988-09-20
申请号：US56577
申请日：1987-06-01
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。
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公开(公告)号：US4558162A
公开(公告)日：1985-12-10
申请号：US607552
申请日：1984-05-07
IPC分类号： C07C17/12 , C08G64/08 , C07C149/36
CPC分类号： C08G64/081 , C07C17/12 , C07C323/00
摘要： The present invention relates to the novel monomer 4,4'-bis(4-hydroxyphenyl thio)biphenyl, to a process for its production and to its use in the preparation of polycarbonates, polyurethanes, polyesters, polysulfones and polyethers.
摘要翻译： 本发明涉及新型单体4,4'-双（4-羟基苯基硫代）联苯，涉及其制备方法及其在制备聚碳酸酯，聚氨酯，聚酯，聚砜和聚醚中的用途。
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公开(公告)号：US4515937A
公开(公告)日：1985-05-07
申请号：US185632
申请日：1980-09-09
申请人： Arthur L. Baron , Sivaram Krishnan
发明人： Arthur L. Baron , Sivaram Krishnan
CPC分类号： C08G64/081
摘要： The invention relates to an aromatic, high molecular weight thermoplastic copolycarbonate comprising the reaction product of a sulfur-free aromatic diphenol, a sulfur-containing diphenol, a branching agent and a carbonic acid derivative, characterized in having improved flame resistance. The invention further relates to a process for the preparation of said copolycarbonate.
摘要翻译： 本发明涉及一种芳族，高分子量的热塑性共聚碳酸酯，其包含无硫芳族二酚，含硫二酚，支化剂和碳酸衍生物的反应产物，其特征在于具有改善的阻燃性。 本发明还涉及制备所述共聚碳酸酯的方法。
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25.发明授权
公开(公告)号：US4497947A
公开(公告)日：1985-02-05
申请号：US557990
申请日：1983-12-05
CPC分类号： C08G64/081
摘要： The present invention is directed to an aromatic copolycarbonate molding composition comprising the reaction product of an aromatic diphenol, an aromatic sulfonyl diphenol, a dihydroxybiphenyl and a carbonic acid derivative, said composition being characterized by its improved heat deflection temperature and critical thickness.
摘要翻译： 本发明涉及一种芳族共聚碳酸酯模塑组合物，其包含芳族二酚，芳族磺酰基二酚，二羟基联苯和碳酸衍生物的反应产物，所述组合物的特征在于其改进的热变形温度和临界厚度。
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公开(公告)号：US4477637A
公开(公告)日：1984-10-16
申请号：US181915
申请日：1980-08-27
申请人： Sivaram Krishnan
发明人： Sivaram Krishnan
CPC分类号： C08L69/00
摘要： A flame resistant polycarbonate blend comprising an alkylated aromatic polycarbonate and a sulfur-bearing compound characterized in exhibiting V-0 flame resistance classification, according to UL-94, is provided. Further provided is a process for the preparation of such blend.
摘要翻译： 提供了根据UL-94，包含烷基化芳族聚碳酸酯和含硫化合物的阻燃聚碳酸酯共混物，其特征在于表现出V-0阻燃等级。 还提供了制备这种共混物的方法。
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公开(公告)号：US4463163A
公开(公告)日：1984-07-31
申请号：US383893
申请日：1982-06-01
CPC分类号： C08G64/081 , C07C17/12 , C07C323/00
摘要： The present invention relates to the novel monomer 4,4'-bis(4-hydroxyphenyl thio)biphenyl, to a process for its production and to its use in the preparation of polycarbonates, polyurethanes, polyesters, polysulfones and polyethers which polymer resins are useful in the preparation of films, fibers and molded parts.
摘要翻译： 本发明涉及新型单体4,4'-双（4-羟基苯基硫代）联苯，涉及其制备方法及其在制备聚碳酸酯，聚氨酯，聚酯，聚砜和聚醚中的用途，聚合物树脂是有用的 在制备薄膜，纤维和模制件时。
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28.发明授权Copolycarbonates prepared with 2,2'-bis(p-hydroxyphenyl) 1,1,1,3,3,3-hexafluoropropane 失效用2,2'-双（对羟基苯基）1,1,1,3,3,3-六氟丙烷制备的共聚碳酸酯
公开(公告)号：US4346211A
公开(公告)日：1982-08-24
申请号：US194650
申请日：1980-10-06
申请人： Sivaram Krishnan , Arthur L. Baron
发明人： Sivaram Krishnan , Arthur L. Baron
摘要： Copolycarbonate resins are prepared from an aromatic diol and a carbonic acid derivative. 2,2-bis(p-hydroxy-phenyl) 1,1,1,3,3,3-hexafluoropropane is co-reacted in a minor amount with the aromatic diol and carbonic acid derivative to form a polycarbonate having improved heat distortion characteristics.
摘要翻译： 共聚碳酸酯树脂由芳族二醇和碳酸衍生物制备。 2,2-双（对羟基 - 苯基）1,1,1,3,3,3-六氟丙烷与芳族二醇和碳酸衍生物少量共反应形成具有改进的热变形特性的聚碳酸酯 。
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29.发明授权Emulating branch instruction of different instruction set in a mixed instruction stream in a dual mode system 失效在双模式系统中模拟混合指令流中不同指令集的分支指令公开(公告)号：US06356997B1
公开(公告)日：2002-03-12
申请号：US09679131
申请日：2000-10-04
IPC分类号： G06F9455
CPC分类号： G06F9/3804 , G06F9/30058 , G06F9/322 , G06F9/3842 , G06F9/3846 , G06F9/3885
摘要： A dual mode branch and branch control system and method is disclosed for accommodating a processor that can operate in either of two operating modes, each using a different type of branch instruction. In a first instruction set, a first type branch instruction includes a separate branch instruction and a branch control instruction, while in the second instruction set, a second type branch instruction includes only a branch instruction. The processor is optimized to handle the first instruction set so that the branch instruction is arrangeable in a program sequence so that an execution unit in the processor can compute a branch target address based on the branch control instruction without a latency penalty. The first type branch instructions also include a folded-compare format, while the second type branch instructions have separated compare and branch instructions. To handle the second type branch instructions, they may be converted into first type branch instructions so they can be executed in emulated form by the processor.
摘要翻译： 公开了一种双模式分支和分支控制系统和方法，用于容纳可以以两种操作模式中的任一种操作的处理器，每种操作模式使用不同类型的分支指令。 在第一指令集中，第一类型分支指令包括单独的分支指令和分支控制指令，而在第二指令集中，第二类型分支指令仅包括分支指令。 处理器被优化以处理第一指令集，使得分支指令可以在程序序列中排列，使得处理器中的执行单元可以基于分支控制指令计算分支目标地址而没有延迟代价。 第一类型分支指令还包括折叠比较格式，而第二类型分支指令具有分离的比较和分支指令。 为了处理第二类分支指令，它们可以被转换成第一类型的分支指令，使得它们可以由处理器以仿真形式执行。
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公开(公告)号：US06197853B1
公开(公告)日：2001-03-06
申请号：US09346238
申请日：1999-07-01
IPC分类号： C08K515
CPC分类号： C08K5/1565 , C08L69/00
摘要： A thermoplastic polycarbonate molding composition having improved resistance to gamma radiation-induced yellowing is disclosed. Particularly suitable for the manufacture of devices geared for medical applications, the composition contains an additive amount of a stabilizing compound conforming structurally to where R1 denotes a C1-30-alkyl group and R2 denotes an aryl radical.
摘要翻译： 公开了具有改进的抗γ辐射诱导黄变性的热塑性聚碳酸酯模塑组合物。 该组合物特别适合用于医疗应用的装置的制造，该组合物含有结构上符合结构的添加量的稳定化合物，其中R1表示C1-30烷基，R2表示芳基。
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