Process for producing polymer particle
    1.
    发明授权
    Process for producing polymer particle 有权
    生产聚合物颗粒的方法

    公开(公告)号:US06699964B1

    公开(公告)日:2004-03-02

    申请号:US10049653

    申请日:2002-06-12

    IPC分类号: C08F622

    摘要: A production method of polymer particles produces graft polymer particles by contacting a coagulant with a polymer latex (A) obtained by graft polymerizing a monomer containing methylmethacrylate to a rubber-like polymer. The method comprises a coagulation step in which polymer latex (A) is discharged into a stirring tank from an immersed nozzle provided so that the cross-sectional surface area of the discharge portion is 40 mm2 or more and the direction of discharge is facing in the same direction as the flow in the stirring tank and so that the linear velocity at the nozzle outlet is a velocity of 50-350 mm/s, and contacted with a coagulant to coagulate the graft polymer and obtain a slurry liquid; and a solidification step in which the resulting slurry liquid is held at a temperature of 60-100° C. to solidify the coagulated graft polymer. According to the production method of the present invention, graft polymer particles having superior powder characteristics with few coarse particles and high bulk specific gravity can be obtained without requiring the use of organic solvent or special equipment. Accordingly, polymer particles having superior powder characteristics can be produced in a stable manner and at low cost.

    摘要翻译: 聚合物颗粒的制备方法通过使凝结剂与通过将含有甲基丙烯酸甲酯的单体接枝聚合到橡胶状聚合物而获得的聚合物胶乳(A)接触而产生接枝聚合物颗粒。 该方法包括凝结步骤,其中聚合物胶乳(A)从设置成使得排出部分的横截面积为40mm 2以上并且排出方向为的浸渍喷嘴排出到搅拌槽中 面向与搅拌槽中的流动相同的方向,使得喷嘴出口处的线速度为50-350mm / s的速度,并与凝结剂接触以使接枝聚合物凝结并获得浆液; 以及固化步骤,其中所得浆液保持在60-100℃的温度以固化凝固的接枝聚合物。 根据本发明的制造方法,不需要使用有机溶剂或特殊设备,可以获得具有优异的粉末特性,粗颗粒少,体积比重高的接枝聚合物颗粒。 因此,可以以稳定的方式和低成本地生产具有优异粉末特性的聚合物颗粒。

    Power train arrangement structure for vehicles
    2.
    发明授权
    Power train arrangement structure for vehicles 失效
    车辆动力传动系布置结构

    公开(公告)号:US5915494A

    公开(公告)日:1999-06-29

    申请号:US687326

    申请日:1996-08-07

    IPC分类号: B60K5/04 B60K17/00 B60K17/04

    CPC分类号: B60K17/00 B60K17/04 B60K5/04

    摘要: A power train arrangement structure for a vehicle, in which an engine and a transaxle for transmitting the drive power outputted from the engine to the axles of front wheels are so arranged in an engine room at the front side of a vehicle body as to have their individual axes in the widthwise direction of the vehicle and in which lower arms for holding the front wheels are supported at two portions in the longitudinal direction of the vehicle. This arrangement structure is characterized in that the foremost end positions of the engine and the transaxle, as taken in the longitudinal direction of the vehicle, are generally aligned with the foremost end positions of the lower arms, as taken in the longitudinal direction of the vehicle, and in that the rearmost end positions of the rigid portions of the engine and the transaxle, as taken in the longitudinal direction of the vehicle, are generally aligned with the rearmost end positions of the lower arms, as taken in the longitudinal direction of the vehicle. Thus, the engine room can be shortened while sufficiently retaining the crush stroke of an FF car.

    摘要翻译: PCT No.PCT / JP95 / 02456 Sec。 371日期:1996年8月7日 102(e)日期1996年8月7日PCT 1995年12月1日PCT PCT。 出版物WO96 / 日期:1996年6月20日用于车辆的动力传动系布置结构,其中用于将从发动机输出的驱动力发送到前轮的轴的发动机和驱动桥配置在车辆前侧的发动机室 主体在车辆的宽度方向上具有各自的轴线,并且其中用于保持前轮的下臂在车辆的纵向方向上被支撑在两个部分。 这种布置结构的特征在于,沿着车辆的纵向方向,发动机和变速驱动桥的最前端位置大致与下臂的最前端位置对齐,沿车辆的纵向方向 并且因为在车辆的纵向方向上沿发动机和变速驱动桥的刚性部分的最后端部位置大致与下臂的最后端部位置对齐,如沿着车辆的纵向方向 车辆。 因此,可以在充分保持FF车的挤压行程的同时缩短发动机室。

    Method for producing diene-based rubber polymer latex
    5.
    发明授权
    Method for producing diene-based rubber polymer latex 有权
    生产二烯系橡胶聚合物胶乳的方法

    公开(公告)号:US06391997B1

    公开(公告)日:2002-05-21

    申请号:US09623600

    申请日:2000-09-05

    IPC分类号: C08F13600

    CPC分类号: C08F36/04 C08F2/22

    摘要: A process for production of diene rubber polymers wherein, during production of a diene rubber polymer by emulsion polymerization, the polymerization is initiated using a portion of the starting material and the polymerization is continued with either continuous or intermittent dropwise addition of the remainder of the starting material during the polymerization, and wherein at least ½ of the total amount of the water and of the monomer in the starting material used is added dropwise during the polymerization, and the temperature of the dropwise added water and monomer is kept to at least 20° C. below the polymerization temperature. The process can produce industrially useful diene rubber polymer latexes at a high productivity rate.

    摘要翻译: 一种生产二烯橡胶聚合物的方法,其中在通过乳液聚合制备二烯橡胶聚合物期间,使用原料的一部分开始聚合,并且连续或间歇滴加余下的起始物 聚合期间的材料,并且其中在聚合过程中滴加所用原料中水和单体总量的至少1/2,滴加水和单体的温度保持在至少20℃ C.低于聚合温度。 该方法可以以高生产率生产工业上有用的二烯橡胶聚合物胶乳。

    Process for producing synthetic latex
    6.
    发明授权
    Process for producing synthetic latex 有权
    生产合成胶乳的方法

    公开(公告)号:US06635707B1

    公开(公告)日:2003-10-21

    申请号:US09720254

    申请日:2001-02-27

    IPC分类号: C08C100

    CPC分类号: C08F2/22 C08F36/04

    摘要: A synthetic latex is prepared by charging a portion of water and a monomer as raw materials in a reactor in a ratio of monomer/water, at which a maximum ultimate pressure in said reactor that is attained if an initial composition in said reactor before the initiation of the polymerization is polymerized from a polymerization initiation temperature in an insulated state, is within a practical proof pressure of said reactor; initiating the polymerization; adding dropwise the remainder of said water and said monomer during the polymerization, continuously or intermittently, and performing the emulsion polymerization. As a result, the emulsion polymerization can be stably performed while controlling the temperature and pressure in said reactor in a runaway reaction in all processes of the method of preparing the synthetic latex, thus making it possible to improve the productivity.

    摘要翻译: 通过以一定比例的单体/水将反应器中的一部分水和单体作为原料装入反应器中,制备合成胶乳,在该反应器中,如果在起始之前在所述反应器中的初始组成达到所述反应器中的最大极限压力 的聚合反应在绝热状态下从聚合引发温度聚合,处于所述反应器的实际证明压力内; 引发聚合反应; 在聚合期间连续地或间歇地滴加剩余的所述水和所述单体,并进行乳液聚合。 结果,在制备合成胶乳的方法的所有方法中,在控制反应器中的温度和压力的同时,可以稳定地进行乳液聚合,从而可以提高生产率。