公开(公告)号：US07799892B2

公开(公告)日：2010-09-21

申请号：US12114172

申请日：2008-05-02

Applicant: Gomatam Raghavan Ravi ,  Deepak Ramaraju ,  Srinivasan Krishnaswami

Inventor： Gomatam Raghavan Ravi ,  Deepak Ramaraju ,  Srinivasan Krishnaswami

IPC: C08G63/00

CPC classification number: C08G63/183 ,  C08G63/78 ,  C08G63/80

Abstract: A process for making modified polybutylene terephthalate random copolymers from a polyethylene terephthalate component includes reacting an oligomeric diol component selected from the group consisting of bis(hydroxybutyl) terephthalate, bis(hydroxybutyl)isophthalate, hydroxybutyl-hydroxyethyl terephthalate, and combinations thereof to a reactor; (i) a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers with (ii) a diol component selected from the group consisting of 1,4-butanediol, ethylene glycol, propylene glycol, and combinations thereof, in the reactor under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; combining the first molten mixture is combined with 1,4-butanediol under conditions to form a second molten mixture; and placing the second molten mixture under conditions sufficient to produce the modified polybutylene terephthalate random copolymers. Also described are compositions and articles made from the process.

Abstract translation: 从聚对苯二甲酸乙二醇酯组分制备改性聚对苯二甲酸丁二醇酯无规共聚物的方法包括将选自双（羟基丁基）对苯二甲酸酯，双（羟基丁基）间苯二甲酸酯，羟基丁基 - 羟乙基对苯二甲酸酯及其组合的低聚二醇组分与反应器反应; （i）选自聚对苯二甲酸乙二醇酯和聚对苯二甲酸乙二醇酯共聚物的聚对苯二甲酸乙二醇酯组分和（ii）选自1,4-丁二醇，乙二醇，丙二醇及其组合的二醇组分，其中 反应器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的条件下进行; 在第一熔融混合物的条件下将第一熔融混合物与1,4-丁二醇组合以形成第二熔融混合物; 并将第二熔融混合物置于足以产生改性聚对苯二甲酸丁二醇酯无规共聚物的条件下。 还描述了由该方法制备的组合物和制品。

公开(公告)号：US20090275698A1

公开(公告)日：2009-11-05

申请号：US12114172

申请日：2008-05-02

Applicant: Gomatam Raghavan Ravi ,  Deepak Ramaraju ,  Srinivasan Krishnaswami

Inventor： Gomatam Raghavan Ravi ,  Deepak Ramaraju ,  Srinivasan Krishnaswami

IPC: C08G63/91 ,  C08L67/03

CPC classification number: C08G63/183 ,  C08G63/78 ,  C08G63/80

Abstract: A process for making modified polybutylene terephthalate random copolymers from a polyethylene terephthalate component includes reacting an oligomeric diol component selected from the group consisting of bis(hydroxybutyl)terephthalate, bis(hydroxybutyl)isophthalate, hydroxybutyl-hydroxyethyl terephthalate, and combinations thereof to a reactor; (i) a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers with (ii) a diol component selected from the group consisting of 1,4-butanediol, ethylene glycol, propylene glycol, and combinations thereof, in the reactor under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; combining the first molten mixture is combined with 1,4-butanediol under conditions to form a second molten mixture; and placing the second molten mixture under conditions sufficient to produce the modified polybutylene terephthalate random copolymers. Also described are compositions and articles made from the process.

Abstract translation: 从聚对苯二甲酸乙二醇酯组分制备改性聚对苯二甲酸丁二醇酯无规共聚物的方法包括将选自双（羟基丁基）对苯二甲酸酯，双（羟基丁基）间苯二甲酸酯，羟基丁基 - 羟乙基对苯二甲酸酯及其组合的低聚二醇组分与反应器反应; （i）选自聚对苯二甲酸乙二醇酯和聚对苯二甲酸乙二醇酯共聚物的聚对苯二甲酸乙二醇酯组分和（ii）选自1,4-丁二醇，乙二醇，丙二醇及其组合的二醇组分，其中 反应器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的条件下进行; 在第一熔融混合物的条件下将第一熔融混合物与1,4-丁二醇组合以形成第二熔融混合物; 并将第二熔融混合物置于足以产生改性聚对苯二甲酸丁二醇酯无规共聚物的条件下。 还描述了由该方法制备的组合物和制品。

公开(公告)号：US5321806A

公开(公告)日：1994-06-14

申请号：US748360

申请日：1991-08-21

Applicant: Kim Meinerth ,  Colyn Case ,  Ali Moezzi ,  John Irwin ,  Agnes Masucci ,  Srinivasan Krishnaswami

Inventor： Kim Meinerth ,  Colyn Case ,  Ali Moezzi ,  John Irwin ,  Agnes Masucci ,  Srinivasan Krishnaswami

IPC: G06F9/38 ,  G06F12/08 ,  G09G5/06 ,  G09G5/08 ,  G09G5/36 ,  G09G5/39 ,  G06F15/20

CPC classification number: G09G5/363 ,  G06F9/3879 ,  G09G5/06 ,  G09G5/08 ,  G09G5/39 ,  G06F12/0831 ,  G09G2360/121 ,  G09G2360/127

Abstract: A residue buffer, for temporary storage of portions of transmissions from a CPU to a graphics processor. Graphics commands are transmitted, in transmission units of uniform size, from a processor unit to an address generator, which processes the commands. The portion of the transmission unit not immediately usable by the graphics processor is stored in the residue buffer. The disclosure further describes a computer graphics system, having a graphics processor capable of reading from or writing to main memory, including virtual memory, without any action by the CPU; having a duplicate cache tag store accessible by the graphics system without generating traffic on the system bus; having a FIFO command buffer in main memory for temporary storage of graphics commands; having a "short circuit" feature for routing graphics commands to the command processor in the minimum number of steps; having a cursor control system capable of storing cursor pattern information in, and retrieving cursor pattern information from, main memory; having a cursor bus that is reconfigurable to carry information other than cursor information; and having a frame buffer module that contains no timing or cursor control circuitry.

Abstract translation: 一个残留缓冲器，用于临时存储从CPU到图形处理器的传输部分。 图形命令以统一大小的传输单元从处理器单元发送到处理命令的地址生成器。 不能由图形处理器立即使用的传输单元的部分被存储在剩余缓冲器中。 本公开进一步描述了一种计算机图形系统，其具有能够在没有CPU的任何动作的情况下能够从包括虚拟存储器的主存储器读取或写入的图形处理器; 具有由图形系统可访问的重复高速缓存标签存储器，而不在系统总线上产生流量; 在主存储器中具有用于临时存储图形命令的FIFO命令缓冲器; 具有用于以最小数量的步骤将图形命令路由到命令处理器的“短路”特征; 具有能够将光标图案信息存储在主存储器中并从主存储器检索光标图案信息的光标控制系统; 具有可重配置以携带除光标信息之外的信息的光标总线; 并具有不包含定时或光标控制电路的帧缓冲器模块。

公开(公告)号：US07825176B2

公开(公告)日：2010-11-02

申请号：US11216792

申请日：2005-08-31

Applicant: Sung Dug Kim ,  Ganesh Kannan ,  Vishvajit Chandrakant Juikar ,  Sreepadaraj Karanam ,  Sanjay Braj Mishra ,  Srinivasan Krishnaswami

Inventor： Sung Dug Kim ,  Ganesh Kannan ,  Vishvajit Chandrakant Juikar ,  Sreepadaraj Karanam ,  Sanjay Braj Mishra ,  Srinivasan Krishnaswami

IPC: C08K5/17

CPC classification number: C08K5/053 ,  C08L67/02

Abstract: A high flow polyester composition is disclosed, which comprises at least one polyester and at least one flow enhancing ingredient of structure, I, where, R1=NH2 or CH2OH; R2=CH3, CH3CH2 or CH2OH or any of C1-C20 alkyl group which may have one or more hydroxy group substituent, C3-C20 cycloalkyl group, C6-C20 aryl group, C1-C20 alkoxy group which may have one or more hydroxy group substituent or C6-C20 aryloxy group. A good balance of flowability and mechanical properties is obtained by controlling the amount of the said flow-enhancing ingredient. The composition further comprises reinforcing fillers, impact modifiers, a property-enhancing thermoplastic such as polycarbonate and flame retardant chemicals. The compositions are suitable for making automotive, electric and electronic parts.

Abstract translation: 公开了一种高流动聚酯组合物，其包含至少一种聚酯和至少一种结构I的流动增强成分，其中R1 = NH2或CH2OH; R 2 = CH 3，CH 3 CH 2或CH 2 OH或可具有一个或多个羟基取代基的C 1 -C 20烷基，可具有一个或多个羟基的C 3 -C 20环烷基，C 6 -C 20芳基，C 1 -C 20烷氧基 取代基或C6-C20芳氧基。 通过控制所述流动增强成分的量获得流动性和机械性能的良好平衡。 组合物还包含增强填料，抗冲改性剂，增强性能的塑料如聚碳酸酯和阻燃化学品。 该组合物适用于制造汽车，电气和电子部件。

公开(公告)号：US20070049667A1

公开(公告)日：2007-03-01

申请号：US11216792

申请日：2005-08-31

Applicant: Sung Kim ,  Ganesh Kannan ,  Vishvajit Juikar ,  Sreepadaraj Karanam ,  Sanjay Mishra ,  Srinivasan Krishnaswami

Inventor： Sung Kim ,  Ganesh Kannan ,  Vishvajit Juikar ,  Sreepadaraj Karanam ,  Sanjay Mishra ,  Srinivasan Krishnaswami

IPC: C08K5/52

CPC classification number: C08K5/053 ,  C08L67/02

Abstract: A high flow polyester composition is disclosed, which comprises at least one polyester and at least one flow enhancing ingredient of structure, I, where, R1═NH2 or CH2OH; R2═CH3, CH3CH2 or CH2OH or any of C1-C20 alkyl group which may have one or more hydroxy group substituent, C3-C20 cycloalkyl group, C6-C20 aryl group, C1-C20 alkoxy group which may have one or more hydroxy group substituent or C6-C20 aryloxy group. A good balance of flowability and mechanical properties is obtained by controlling the amount of the said flow-enhancing ingredient. The composition further comprises reinforcing fillers, impact modifiers, a property-enhancing thermoplastic such as polycarbonate and flame retardant chemicals. The compositions are suitable for making automotive, electric and electronic parts.

Abstract translation: 公开了一种高流动聚酯组合物，其包含至少一种聚酯和至少一种结构I的流动增强成分，其中R 1 -NH 2或CH 2 OH; R 2 -CH 3，CH 3 3，CH 2或CH 2 OH，或 任何可具有一个或多个羟基取代基的C 1 -C 20烷基，可具有一个或多个羟基取代基的C 3 -C 20环烷基，C 6 -C 20芳基，C 1 -C 20烷氧基或C 6 -C 20芳氧基。 通过控制所述流动增强成分的量获得流动性和机械性能的良好平衡。 组合物还包含增强填料，抗冲改性剂，增强性能的塑料如聚碳酸酯和阻燃化学品。 该组合物适用于制造汽车，电气和电子部件。