Acrylic impact modifier prepared by multi-stage polymerization and method for preparing the same
    21.
    发明申请
    Acrylic impact modifier prepared by multi-stage polymerization and method for preparing the same 有权
    通过多级聚合制备的丙烯酸类抗冲改性剂及其制备方法

    公开(公告)号:US20050119393A1

    公开(公告)日:2005-06-02

    申请号:US10472593

    申请日:2003-01-14

    Abstract: The invention relates to an acrylic impact modifier having a core-shell structure that provides an acrylic impact modifier composition comprising (a) a rubber core containing an alkyl acrylate polymer comprising at least two layers having different cross-linking densities, and (b) a shell containing an alkyl methacrylate polymer; to a process for the preparation of the acrylic impact modifier; and to a poly(vinyl chloride) composition comprising it. The acrylic impact modifier imparting excellent impact resistance was invented by employing multi-stage polymerization and at the same time by controlling the swelling index of rubber particles by changing the degree of cross-linking from stage to stage. And the poly(vinyl chloride) comprising the impact modifier of the present invention has good weatherability as well as excellent impact strength.

    Abstract translation: 本发明涉及具有提供丙烯酸类抗冲改性剂组合物的核 - 壳结构的丙烯酸类抗冲改性剂,其包含(a)含有至少两层具有不同交联密度的丙烯酸烷基酯聚合物的橡胶芯,和(b) 壳含有甲基丙烯酸烷基酯聚合物; 涉及制备丙烯酸类抗冲改性剂的方法; 和包含它的聚(氯乙烯)组合物。 通过采用多级聚合法,发明了赋予耐冲击性优异的丙烯酸类抗冲击改性剂,同时通过改变交联程度从阶段到控制橡胶粒子的溶胀指数。 并且包含本发明的抗冲改性剂的聚(氯乙烯)具有良好的耐候性以及优异的冲击强度。

    Method for preparing acryl based impact-reinforcement
    22.
    发明申请
    Method for preparing acryl based impact-reinforcement 失效
    制备基于丙烯酸的冲击强化的方法

    公开(公告)号:US20050101732A1

    公开(公告)日:2005-05-12

    申请号:US10450338

    申请日:2001-12-13

    Abstract: The present invention relates to a preparation method of an acryl-based impact-reinforcement, and more particularly, to a preparation method of an acryl-based reinforcement prepared by blending latex having large particles and latex having small particles, being capable of enhancing impact-resistance of a polyvinyl chloride (PVC) resin. The present invention provides a method of preparing an acryl-based impact reinforcement comprising a step of blending a) 50 to 90 parts by weight of latex having large particles with a particle size of 200 to 500 nm and a core-shell structure and b) 10 to 50 parts by weight of latex having small particles with a paicle size of 60 to 140 nm and a core-shell structure. In addition, the present invention provides an impact-reinforcement prepared by the method of the present invention, and a polyvinyl chloride (PVC) composition comprising the same.

    Abstract translation: 本发明涉及一种丙烯酸类抗冲击增强剂的制备方法,更具体地说,涉及通过将具有大颗粒的胶乳和具有小颗粒的胶乳混合制备的丙烯酸类增强剂的制备方法, 聚氯乙烯(PVC)树脂的电阻。 本发明提供一种制备丙烯酸类抗冲击增强材料的方法,其包括以下步骤:a)将50〜90重量份的粒径为200〜500nm的大粒子和核 - 壳结构的胶乳混合,b) 10〜50重量份的具有60〜140nm的粒径的小粒子和核 - 壳结构的胶乳。 此外,本发明提供了通过本发明的方法制备的冲击强化剂和包含其的聚氯乙烯(PVC)组合物。

    Transcription factor gene induced by water deficit and abscisic acid
isolated from Arabidopsis thaliana
    23.
    发明授权
    Transcription factor gene induced by water deficit and abscisic acid isolated from Arabidopsis thaliana 失效
    由拟南芥分离的缺水和脱落酸诱导的转录因子基因

    公开(公告)号:US5981729A

    公开(公告)日:1999-11-09

    申请号:US141135

    申请日:1998-08-27

    CPC classification number: C07K14/415

    Abstract: This invention relates a novel gene which is induced by water deficit and abscisic acid. The gene encodes for a transcription factor, particularly homeodomain-leucine zipper transcription factor which contains a transcriptional activation domain in the C-terminal region and a DNA-binding domain in the N-terminal region. The gene can be cloned into an expression vector to produce a recombinant DNA expression system suitable for insertion into cells to form a transgenic plant transformed with this gene. The gene of this invention can be also used to produce transgenic plants which exhibit enhanced resistance to drought.

    Abstract translation: 本发明涉及由缺水和脱落酸诱导的新基因。 该基因编码转录因子,特别是同源结构域 - 亮氨酸拉链转录因子,其在C-末端区域中含有转录激活结构域,在N末端区域含有DNA结合结构域。 该基因可被克隆到表达载体中以产生适于插入细胞以形成用该基因转化的转基因植物的重组DNA表达系统。 本发明的基因也可用于产生显示增强的抗旱性的转基因植物。

    Vertical Pressure Sensor
    24.
    发明申请
    Vertical Pressure Sensor 有权
    立式压力传感器

    公开(公告)号:US20120297886A1

    公开(公告)日:2012-11-29

    申请号:US13446473

    申请日:2012-04-13

    CPC classification number: G01L9/0055 G01L19/0084 G01L19/148

    Abstract: A vertical pressure sensor having a fluid deforming pressure application unit, a sensor housing, a socket, a circuit board, a plurality of electrode terminals, and a plurality of electrical signal transmitting electrode rods. The pressure application unit includes a diaphragm to which strain gauges are attached. The socket surrounds a circumference of the diaphragm of the pressure application unit and includes a receiving passageway. The plurality of electrode terminals are provided at the upper end of the socket in a Wheatstone bridge circuit pattern. The plurality of electrode terminals protrude from the upper end of the socket to constitute an electrode tip. The circuit board connects to the plurality of electrode terminals to convert a pressure value into an electrical signal, and the plurality of electrode rods are connected to the circuit board to transmit the electrical signal outside.

    Abstract translation: 一种具有流体变形压力施加单元,传感器壳体,插座,电路板,多个电极端子和多个电信号传输电极棒的垂直压力传感器。 压力施加单元包括附接有应变仪的隔膜。 插座围绕压力施加单元的隔膜的圆周并且包括接收通道。 多个电极端子以惠斯通电桥电路图案设置在插座的上端。 多个电极端子从插座的上端突出以构成电极头。 电路板连接到多个电极端子,以将压力值转换为电信号,并将多个电极棒连接到电路板以将电信号传输到外部。

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