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    Weatherable resinous composition with improved heat resistance
    1.
    发明申请
    Weatherable resinous composition with improved heat resistance 审中-公开
    耐候性好的耐候性树脂组合物

    公开(公告)号：US20060069208A1

    公开(公告)日：2006-03-30

    申请号：US10953724

    申请日：2004-09-29

    申请人： Sandeep Dhawan ,  Satish Gaggar ,  Patricia Sun ,  Shripathy Vilasagar

    发明人： Sandeep Dhawan ,  Satish Gaggar ,  Patricia Sun ,  Shripathy Vilasagar

    IPC分类号： C08F8/00

    CPC分类号： C08L55/02 ,  C08F265/04 ,  C08L51/04 ,  Y02P20/582 ,  C08L2666/04 ,  C08L2666/02 ,  C08L2666/24

    摘要： Disclosed are compositions comprising: (i) a rubber modified thermoplastic resin comprising a discontinuous elastomeric phase dispersed in a rigid thermoplastic phase, wherein at least a portion of the rigid thermoplastic phase is grafted to the elastomeric phase, and wherein the elastomeric phase comprises a polymer having structural units derived from at least one (C1-C12)alkyl(meth)acrylate monomer; (ii) a second polymer consisting essentially of structural units derived from at least one (C1-C12)alkyl(meth)acrylate monomer; and optionally (iii) a third polymer comprising structural units derived from at least one alkenyl aromatic monomer and at least one monoethylenically unsaturated nitrile monomer prepared in a separate polymerization step and added to the composition. In other embodiments the present invention comprises articles made from said compositions.

    摘要翻译： 公开的组合物包括：（i）包含分散在刚性热塑性相中的不连续弹性体相的橡胶改性的热塑性树脂，其中至少一部分刚性热塑性相被接枝到弹性体相上，并且其中弹性体相包含聚合物 具有衍生自至少一种（甲基）丙烯酸（C 1 -C 12）烷基酯（甲基）丙烯酸酯单体的结构单元; （ii）基本上由衍生自至少一种（甲基）丙烯酸（C 1 -C 12）烷基酯（甲基）丙烯酸酯单体的结构单元组成的第二聚合物; 和任选地（iii）包含衍生自至少一种链烯基芳族单体的结构单元和在单独的聚合步骤中制备的至少一种单烯属不饱和腈单体的第三聚合物，并加入到组合物中。 在其它实施方案中，本发明包括由所述组合物制成的制品。

    Resinous composition with improved resistance to plate-out formation, and method
    2.
    发明申请
    Resinous composition with improved resistance to plate-out formation, and method 审中-公开
    具有改善的抗平板化形成的树脂组合物和方法

    公开(公告)号：US20060069207A1

    公开(公告)日：2006-03-30

    申请号：US10953722

    申请日：2004-09-29

    申请人： Sandeep Dhawan ,  Satish Gaggar ,  Wenyu Shang ,  Shuwen Peng ,  Patricia Sun ,  Christiaan Henricus Johannes Koevoets

    发明人： Sandeep Dhawan ,  Satish Gaggar ,  Wenyu Shang ,  Shuwen Peng ,  Patricia Sun ,  Christiaan Henricus Johannes Koevoets

    IPC分类号： C08F8/00

    CPC分类号： C08L51/04 ,  C08F265/04 ,  C08L55/02 ,  Y02P20/582 ,  C08L2666/24 ,  C08L2666/04 ,  C08L2666/02

    摘要： Disclosed are compositions comprising: (i) a rubber modified thermoplastic resin comprising a discontinuous elastomeric phase dispersed in a rigid thermoplastic phase, wherein at least a portion of the rigid thermoplastic phase is grafted to the elastomeric phase; (ii) at least two additives selected from the group consisting of glass beads; fluoropolymers; ethylene bis-stearamide; a mixture of at least one metal salt of a fatty acid and at least one amide; a homopolymer comprising structural units derived from at least one (C1-C12)alkyl(meth)acrylate monomer; and mixtures thereof; and optionally (iii) at least one additive selected from the group consisting of a silicone oil and a linear low density polyethylene; wherein said composition has a critical shear rate value of greater than about 50 reciprocal seconds as measured at 190° C. in a capillary rheometer with 10 mm length and 1 mm diameter. In other embodiments the present invention comprises a method to reduce or eliminate plate-out formation in compositions comprising rubber modified thermoplastic resins. In still other embodiments the present invention comprises articles made from said compositions.

    摘要翻译： 公开的组合物包括：（i）包含分散在刚性热塑性相中的不连续弹性体相的橡胶改性的热塑性树脂，其中至少一部分刚性热塑性相被接枝到弹性体相; （ii）至少两种选自玻璃珠的添加剂; 含氟聚合物; 亚乙基双硬脂酰胺; 至少一种脂肪酸金属盐和至少一种酰胺的混合物; 包含衍生自至少一种（甲基）丙烯酸（C 1 -C 12）烷基酯（甲基）丙烯酸酯单体的结构单元的均聚物; 及其混合物; 和任选地（iii）至少一种选自硅油和线性低密度聚乙烯的添加剂; 其中所述组合物具有在190℃下在10mm长度和1mm直径的毛细管流变仪中测量的大于约50倒数秒的临界剪切速率值。 在其它实施方案中，本发明包括减少或消除包含橡胶改性热塑性树脂的组合物中的平板形成的方法。 在其它实施方案中，本发明包括由所述组合物制成的制品。

    Weatherable, high modulus polymer compositions and method
    5.
    发明申请
    Weatherable, high modulus polymer compositions and method 审中-公开
    耐候性，高模量聚合物组合物和方法

    公开(公告)号：US20070123655A1

    公开(公告)日：2007-05-31

    申请号：US11290067

    申请日：2005-11-30

    申请人： Satish Gaggar ,  Sandeep Dhawan

    发明人： Satish Gaggar ,  Sandeep Dhawan

    IPC分类号： C08L27/12

    CPC分类号： C08L33/04 ,  C08L27/12 ,  C08L33/06 ,  C08L2666/04

    摘要： Disclosed are compositions comprising (i) a rigid thermoplastic resin comprising structural units derived from a (C1-C12)alkyl (meth)acrylate monomer, and optionally a second monomer selected from the group consisting of a vinyl aromatic monomer, a monoethylenically unsaturated nitrile monomer and mixtures thereof, and (ii) 2 parts by weight to 25 parts by weight of a fluoropolymer; wherein the composition is free of both any rubber component and any filler. Articles made from the compositions and a method to improve physical properties in the compositions are also disclosed.

    摘要翻译： 公开的组合物包含（i）包含衍生自（甲基）丙烯酸（C 1 -C 12）烷基酯（甲基）丙烯酸烷基酯单体的结构单元的硬质热塑性树脂和任选的第二单体 选自乙烯基芳族单体，单烯属不饱和腈单体及其混合物，和（ii）2重量份至25重量份的含氟聚合物; 其中所述组合物不含任何橡胶组分和任何填料。 还公开了由组合物制成的制品和改善组合物中物理性能的方法。

    Process for making polybutylene terephthalate (PBT) from polyethylene terephthalate (PET)
    6.
    发明授权
    Process for making polybutylene terephthalate (PBT) from polyethylene terephthalate (PET) 有权
    从聚对苯二甲酸乙二醇酯（PET）制造聚对苯二甲酸丁二醇酯（PBT）的方法

    公开(公告)号：US08138233B2

    公开(公告)日：2012-03-20

    申请号：US13021093

    申请日：2011-02-04

    申请人： Parminder Agarwal ,  Kristen Cohoon-Brister ,  Sandeep Dhawan ,  Robert Russell Gallucci ,  Ganesh Kannan ,  Kenneth Frederick Miller ,  Dhaval Shah

    发明人： Parminder Agarwal ,  Kristen Cohoon-Brister ,  Sandeep Dhawan ,  Robert Russell Gallucci ,  Ganesh Kannan ,  Kenneth Frederick Miller ,  Dhaval Shah

    IPC分类号： C08J11/04

    CPC分类号： C08G63/183 ,  C08J11/24 ,  C08J2367/02 ,  Y02W30/706

    摘要： In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. In another embodiment, the invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butane diol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. The invention also relates to compositions made from processes of the invention.

    摘要翻译： 在一个实施方案中，本发明涉及二步法，其中1,4-丁二醇组分在聚对苯二甲酸乙二醇酯组分解聚熔融混合物的条件下与聚对苯二甲酸乙二醇酯组分反应，并将熔融混合物置于低于大气压的条件下 生产改性聚对苯二甲酸丁二醇酯无规共聚物。 在另一个实施方案中，本发明涉及三步法，其中选自乙二醇，丙二醇及其组合的二醇组分在足以将聚对苯二甲酸乙二醇酯组分解聚为第一 熔融混合物 并且其中在产生第二熔融混合物的条件下将第一熔融混合物与1,4-丁二醇组合，随后将其置于产生改性聚对苯二甲酸丁二醇酯无规共聚物的低于大气压条件下。 本发明还涉及由本发明的方法制备的组合物。

    PROCESS FOR MAKING POLYBUTYLENE TEREPHTHALATE (PBT) FROM POLYETHYLENE TEREPHTHALATE (PET)
    7.
    发明申请
    PROCESS FOR MAKING POLYBUTYLENE TEREPHTHALATE (PBT) FROM POLYETHYLENE TEREPHTHALATE (PET) 有权
    聚苯乙烯聚苯乙烯（PET）制备聚苯乙烯（PBT）的方法

    公开(公告)号：US20110124821A1

    公开(公告)日：2011-05-26

    申请号：US13021093

    申请日：2011-02-04

    申请人： Parminder Agarwal ,  Kristen Cohoon ,  Sandeep Dhawan ,  Robert Russell Gallucci ,  Ganesh Kannan ,  Kenneth Frederick Miller ,  Dhaval Shah

    发明人： Parminder Agarwal ,  Kristen Cohoon ,  Sandeep Dhawan ,  Robert Russell Gallucci ,  Ganesh Kannan ,  Kenneth Frederick Miller ,  Dhaval Shah

    IPC分类号： C08G63/91

    CPC分类号： C08G63/183 ,  C08J11/24 ,  C08J2367/02 ,  Y02W30/706

    摘要： In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. In another embodiment, the invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butane diol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. The invention also relates to compositions made from processes of the invention.

    摘要翻译： 在一个实施方案中，本发明涉及二步法，其中1,4-丁二醇组分在聚对苯二甲酸乙二醇酯组分解聚熔融混合物的条件下与聚对苯二甲酸乙二醇酯组分反应，并将熔融混合物置于低于大气压的条件下 生产改性聚对苯二甲酸丁二醇酯无规共聚物。 在另一个实施方案中，本发明涉及三步法，其中选自乙二醇，丙二醇及其组合的二醇组分在足以将聚对苯二甲酸乙二醇酯组分解聚为第一 熔融混合物 并且其中在产生第二熔融混合物的条件下将第一熔融混合物与1,4-丁二醇组合，随后将其置于产生改性聚对苯二甲酸丁二醇酯无规共聚物的低于大气压条件下。 本发明还涉及由本发明的方法制备的组合物。

    Crystalline polyester resins and processes for their preparation
    9.
    发明授权
    Crystalline polyester resins and processes for their preparation 有权
    结晶聚酯树脂及其制备方法

    公开(公告)号：US06472500B2

    公开(公告)日：2002-10-29

    申请号：US09681831

    申请日：2001-06-13

    申请人： Sandeep Dhawan ,  Gary Smith

    发明人： Sandeep Dhawan ,  Gary Smith

    IPC分类号： C08G6378

    CPC分类号： C08G63/78 ,  C08G63/183 ,  C08G63/82 ,  C08G63/85

    摘要： An improved process for the preparation of high molecular weight, linear polyester resins comprises reacting an aromatic dicarboxylic acid with an excess of an alkane diol under conditions effective to reach the clearing point of the reaction; pre-condensing the cleared reaction mixture under conditions effective to produce oligomers having an intrinsic viscosity measured in 60/40 phenol/1,1,2,2-tetrachloroethane at 25° C. of less than about 0.70 deciliters/gram and a carboxylic acid end group level of less than or equal to about 100 milliequivalents per kilogram; and polycondensing the oligomer under conditions effective to produce a linear polyester resin having an intrinsic viscosity less than or equal to about 2.0 dl/g as measured in 60/40 phenol/1,1,2,2-tetrachloroethane by weight at 25° C. and a carboxylic acid end group level of about 10 to about 40 milliequivalents per kilogram.

    摘要翻译： 用于制备高分子量线性聚酯树脂的改进方法包括在有效达到反应清除点的条件下使芳族二羧酸与过量的烷二醇反应; 在有效产生具有小于约0.70分升/克的在60/40苯酚/ 1,1,2,2-四氯乙烷中测定的特性粘度和低于约0.70分升/克的羧酸的条件下预冷凝澄清的反应混合物 终端组水平小于或等于约100毫当量每公斤; 并且在有效地制备特性粘度小于或等于约2.0dl / g的线性聚酯树脂的条件下，在25℃下以重量计在60/40苯酚/ 1,1,2,2-四氯乙烷中测量的条件下将低聚物缩聚 和羧酸端基水平为约10至约40毫当量/千克。

    Real-time speech-to-speech generation (RSSG) and sign language conversion apparatus, method and a system therefore
    10.
    发明授权
    Real-time speech-to-speech generation (RSSG) and sign language conversion apparatus, method and a system therefore 有权

    公开(公告)号：US11501091B2

    公开(公告)日：2022-11-15

    申请号：US17838181

    申请日：2022-06-11

    申请人： Sandeep Dhawan

    发明人： Sandeep Dhawan

    IPC分类号： G10L15/16 ,  G06F40/58 ,  G10L13/047 ,  G10L15/00 ,  G10L13/033

    摘要： A real-time speech-to-speech generator and sign gestures converter system is disclosed. The system is still challenging for deaf or hearing impaired people. Embodiments of the invention provide direct speech to speech translation system and further conversion to sign gestures is disclosed. Direct speech to speech translation and further sign gesture conversion uses a one-tier approach, creating a unified-model for whole application. The single-model ecosystem takes in audio (MEL spectrogram) as an input and gives out audio (MEL spectrogram) as an output to a speech-sign converter device with a display. This solves the bottleneck problem by converting the translated speech directly to sign language gesture from first language with emotion by preserving phonetic information along the way. This model needs parallel audio samples in two languages. The training methodology involves augmenting or changing both sides of the audio equally and later converts to sign gestures which are being displayed on a speech-sign converter device.