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    Polyisoprene articles and process for making the same
    2.
    发明授权
    Polyisoprene articles and process for making the same 有权
    聚异戊二烯制品和制造方法相同

    公开(公告)号：US08273810B2

    公开(公告)日：2012-09-25

    申请号：US12888130

    申请日：2010-09-22

    申请人： Shiping Wang ,  Yun-Siung Tony Yeh ,  Randell Wenig ,  Wong Weicheong

    发明人： Shiping Wang ,  Yun-Siung Tony Yeh ,  Randell Wenig ,  Wong Weicheong

    IPC分类号： C08K5/34 ,  C08L9/00

    CPC分类号： C08K5/39 ,  C08J5/02 ,  C08J2309/00 ,  C08K5/0025 ,  C08L9/10 ,  C08L89/005 ,  Y10T428/1386 ,  C08L21/00 ,  C08L2666/26

    摘要： The invention disclosed herein relates to an improved process for making elastomeric polyisoprene articles. In particular, the process of the invention is a system which produces synthetic polyisoprene articles exhibiting tensile strength properties similar to that of solvent-based processes using natural rubber latex. The process comprises an accelerator composition at the pre-cure stage comprising a dithiocarbamate, a thiazole and a guanidine compound. In a preferred embodiment, the accelerator composition comprises zinc diethyldithiocarbamate (ZDEC), zinc 2-mercaptobenzothiazole (ZMBT) and diphenyl guanidine (DPG), in conjunction with a stabilizer, such as sodium caseinate. The invention also includes an elastomeric polyisoprene product made by the process, such as a surgeon's glove.

    摘要翻译： 本文公开的本发明涉及用于制备弹性体聚异戊二烯制品的改进方法。 特别地，本发明的方法是生产合成聚异戊二烯制品的系统，其显示出与使用天然橡胶胶乳的基于溶剂的方法相似的拉伸强度性能。 该方法包括在预固化阶段包含二硫代氨基甲酸酯，噻唑和胍化合物的促进剂组合物。 在优选的实施方案中，促进剂组合物与稳定剂如酪蛋白酸钠结合使用包含二乙基二硫代氨基甲酸锌（ZDEC），2-巯基苯并噻唑锌（ZMBT）和二苯基胍（DPG）。 本发明还包括通过该方法制备的弹性体聚异戊二烯产品，例如外科医生的手套。

    WATER-BASED RESIN COMPOSITION AND ARTICLES MADE THEREFROM
    5.
    发明申请
    WATER-BASED RESIN COMPOSITION AND ARTICLES MADE THEREFROM 审中-公开
    水基树脂组合物及其制品

    公开(公告)号：US20090234064A1

    公开(公告)日：2009-09-17

    申请号：US12403901

    申请日：2009-03-13

    申请人： Shiping WANG ,  Seong Fong Chen ,  Ida Berger ,  Yun-Siung Tony Yeh ,  Wei Cheong Wong

    发明人： Shiping WANG ,  Seong Fong Chen ,  Ida Berger ,  Yun-Siung Tony Yeh ,  Wei Cheong Wong

    IPC分类号： C08L27/04 ,  C08L9/06 ,  C08L9/02 ,  C08L9/00 ,  C08L53/00

    摘要： An aqueous elastomer dispersion includes a dispersed phase and an aqueous phase. The dispersed phase includes an elastomer including curable aliphatic conjugated-diene elastomers, such as polyisoprene, and a minor amount of at least one additive. The aqueous phase includes water and other optional components in either a soluble state or a dispersion state. The aqueous elastomer dispersion may be prepared by dissolving an elastomer, such as rubber, and additives in a solvent mixture and then converting the resulting solution into an aqueous emulsion. The aqueous emulsion is concentrated and the solvent is stripped from it to yield a dilute latex. The dilute latex that is obtained is concentrated again. Articles made from the aqueous elastomer dispersion include medical gloves, condoms, probe covers, dental dams, finger cots, catheters and the like.

    摘要翻译： 水性弹性体分散体包括分散相和水相。 分散相包括弹性体，其包括可固化的脂族共轭二烯弹性体，例如聚异戊二烯和少量的至少一种添加剂。 水相包括水和可溶性状态或分散状态的其它任选组分。 可以通过将诸如橡胶的弹性体和添加剂溶解在溶剂混合物中然后将所得溶液转化成水性乳液来制备水性弹性体分散体。 将水性乳液浓缩并从其中汽提出溶剂，得到稀释胶乳。 将得到的稀释胶乳再次浓缩。 由弹性体水分散体制成的制品包括医用手套，避孕套，探针罩，牙槽，手指套，导管等。

    Powder free neoprene surgical gloves
    10.
    发明授权
    Powder free neoprene surgical gloves 失效
    无粉氯丁橡胶外科手套

    公开(公告)号：US06195805B1

    公开(公告)日：2001-03-06

    申请号：US09032632

    申请日：1998-02-27

    申请人： George Bourne ,  Theresa A. Moceri ,  Yun-Siung Tony Yeh

    发明人： George Bourne ,  Theresa A. Moceri ,  Yun-Siung Tony Yeh

    IPC分类号： A41D19015

    CPC分类号： C08J5/02 ,  A61L31/049 ,  C08J2311/00 ,  Y10T428/1352 ,  Y10T428/1386 ,  C08L11/00

    摘要： A unique powder-free medical glove fabricated from a neoprene copolymer, and a method of making same is described. The gloves of the invention are easily donned without the use of powdered donning agents and retain their puncture resistance, tensile strength, stress at 500% and elongation to break after post-processing by chlorination and sterilization by irradiation. Additionally, the gloves of the invention exhibit minimal discoloration (as measured by the per cent change in yellowness index) and minimal stickiness to themselves and to glove packing materials after sterilization by irradiation.

    摘要翻译： 描述了由氯丁橡胶共聚物制造的独特的无粉末医用手套及其制造方法。 本发明的手套在不使用粉末穿戴剂的情况下容易穿戴，并且通过氯化和通过照射灭菌将其抗刺穿性，拉伸强度，500％的应力和后处理后的伸长率保持不变。 此外，本发明的手套显示出最小的变色（通过黄度指数的百分比变化测量）和对自身的最小粘性，以及通过照射灭菌后手套包装材料。