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16 条记录 (耗时 0.048 秒)

    Polyhydroxy acid films
    2.
    发明授权
    Polyhydroxy acid films 失效
    聚羟基酸膜

    公开(公告)号：US5076983A

    公开(公告)日：1991-12-31

    申请号：US552551

    申请日：1990-07-16

    申请人： Gary L. Loomis ,  George J. Ostapchenko

    发明人： Gary L. Loomis ,  George J. Ostapchenko

    IPC分类号： B29C47/00 ,  B29C55/00 ,  B29C55/12 ,  B29C61/06 ,  B29C71/00 ,  B29K67/00 ,  B29L7/00 ,  C08G63/06 ,  C08J5/18 ,  C08K5/09 ,  C08K5/10 ,  C08L67/00 ,  C08L67/04

    CPC分类号： C08K5/09 ,  B29C55/005 ,  C08G63/06 ,  C08L67/04 ,  B29C71/00 ,  B29K2995/0049

    摘要： The present invention relates to a process for producing degradable, shrinkable films of polyhydroxy acid and plasticizers including melt processing the materials to obtain uniform composition, forming the composition into a film, and biaxially orienting the film. Also, non-shrinkable films are produced by heat-setting the biaxially oriented films at temperature above the composition glass transition temperature and below its melt temperature while maintaining the film under restraint. Films thus produced are useful for disposable, environmentally benign packaging and other conventional film uses.

    摘要翻译： 本发明涉及一种生产多羟基酸的可降解的可收缩薄膜和增塑剂的方法，包括熔融加工材料以获得均匀的组成，将组合物形成薄膜，并将薄膜双轴取向。 此外，通过在高于组成玻璃化转变温度并低于其熔融温度的温度下将双轴取向膜热固定，同时保持该膜受到限制，来生产不收缩膜。 如此生产的膜对于一次性，环境友好的包装和其它常规的膜用途是有用的。

    Vapor-permeable, waterproof bicomponent structure
    4.
    发明授权
    Vapor-permeable, waterproof bicomponent structure 失效
    透气性，防水双组分结构

    公开(公告)号：US4725481A

    公开(公告)日：1988-02-16

    申请号：US18338

    申请日：1987-02-24

    申请人： George J. Ostapchenko

    发明人： George J. Ostapchenko

    IPC分类号： B32B7/02 ,  B32B27/08 ,  B32B27/12 ,  B32B27/36

    CPC分类号： B32B27/08 ,  Y10T428/2495 ,  Y10T428/31797 ,  Y10T442/679 ,  Y10T442/699

    摘要： (A) A continuous layer of a hydrophobic elastomer having a water vapor transmission rate of 400-2500 gm.mil/m.sup.2 /24 hrs., said hydrophobic elastomer is a copolyetherester having a multiplicity of recurring long-chain ester units and short-chain ester units, said long-chain ester units being represented by the formula ##STR1## and said short-chain ester units being represented by the formula ##STR2## where G is a divalent radical remaining after the removal of terminal hydroxyl groups from a poly(alkylene oxide)glycol having an average molecular weight of about 400-3500, the amount of ethylene oxide groups incorporated in the copolyetherester by the poly(alkylene oxide)glycol is not greater than about 20 weight percent; R is a divalent radical remaining after removal of carboxyl groups from a dicarboxylic acid having a molecular weight less than 300; D is a divalent radical remaining after removal of hydroxyl groups from a diol having a molecular weight less than about 250;(B) a continuous layer of a hydrophilic elastomer having a water vapor transmission rate of at least 3500 gm.mil/m.sup.2 /24 hrs. said hydrophilic elastomer is a copolyetherester having a multiplicity of long-chain ester units and short-chain ester units represented by formulae (I) and (II) above and having the values given above with the proviso that the amount of ethylene oxide groups incorporated in the copolyetherester by the poly(alkylene oxide)glycol is from about 25-68 weight percent andsaid bicomponent film has a separation ratio for water vapor of at least 1.2.

    摘要翻译： （A）疏水性弹性体的连续层，其水蒸汽透过率为400-2500gm.mil / m2 / 24小时，所述疏水性弹性体是具有多个重复长链酯单元和短链的共聚醚酯 酯单元，所述长链酯单元由式（I）表示，所述短链酯单元由式（II）表示，其中G是除去末端后残留的二价基团 来自平均分子量为约400-3500的聚（环氧烷）二醇的羟基，由聚（环氧烷）二醇引入共聚醚酯中的环氧乙烷基团的量不大于约20重量％; R是从分子量小于300的二羧酸除去羧基后剩余的二价基团; D是从分子量小于约250的二醇中除去羟基后剩余的二价基团; （B）具有至少3500gm.mil / m 2/24小时的水蒸气透过率的亲水性弹性体的连续层。 所述亲水性弹性体是具有多个长链酯单元和由上述式（I）和（II）表示的短链酯单元的共聚醚酯，并且具有上述给出的值，条件是环氧乙烷基团的量加入 聚（环氧烷）二醇的共聚醚酯为约25-68重量％，所述双组分膜的水蒸汽分离比至少为1.2。

    Extrusion coating process
    5.
    发明授权
    Extrusion coating process 失效
    挤出涂装工艺

    公开(公告)号：US06645336B1

    公开(公告)日：2003-11-11

    申请号：US09670528

    申请日：2000-09-27

    申请人： Yannick Albertone ,  George J. Ostapchenko

    发明人： Yannick Albertone ,  George J. Ostapchenko

    IPC分类号： B32B3130

    CPC分类号： B32B27/12 ,  B32B37/153 ,  B32B2262/0253 ,  B32B2307/724 ,  B32B2307/7265 ,  B32B2323/04 ,  B32B2323/10 ,  B32B2419/06 ,  B32B2437/00 ,  B32B2555/02

    摘要： A process for the preparation of a laminate, particularly a waterproof moisture vapor permeable laminate, comprising a substrate having on a surface thereof a thermoplastic polymer resin coating and further comprising a peelable release layer in contact with the surface of said thermoplastic polymer resin remote from the substrate, and optionally further comprising a tie layer between the substrate and the thermoplastic polymer resin, said process comprising the steps of forming or providing a substrate layer and providing on a surface thereof a thermoplastic polymer resin coating and a peelable release layer and optionally providing a tie layer between the substrate and the thermoplastic polymer resin coating, characterized in that the thermoplastic polymer resin has a viscosity less than about 3000 Pa.s measured according to the standard ISO11443.

    摘要翻译： 一种用于制备层压体，特别是防水透湿层压材料的方法，其包括在其表面上具有热塑性聚合物树脂涂层的基底，并且还包括与所述热塑性聚合物树脂的远离所述热塑性聚合物树脂的表面接触的可剥离的隔离层 衬底，并且任选地还包括在所述基底和所述热塑性聚合物树脂之间的连接层，所述方法包括以下步骤：形成或提供基底层，并在其表面上提供热塑性聚合物树脂涂层和可剥离释放层，并且任选地提供 基底和热塑性聚合物树脂涂层之间的粘结层，其特征在于热塑性聚合物树脂的粘度小于根据标准ISO11443测量的约3000Pa.s。

    Vascular prosthesis with an elastomer coating
    7.
    发明授权
    Vascular prosthesis with an elastomer coating 失效
    具有弹性涂层的血管扩张

    公开(公告)号：US5192308A

    公开(公告)日：1993-03-09

    申请号：US687673

    申请日：1991-04-19

    申请人： George J. Ostapchenko

    发明人： George J. Ostapchenko

    IPC分类号： A61F2/06 ,  A61L27/00 ,  A61L27/34

    CPC分类号： A61L27/34 ,  A61F2/06 ,  Y10S623/901

    摘要： A vascular prosthesis is made by wetting a porous polyester fiber tubing with water until it gains close to maximum amount of weight, removing excess liquid from inside the tubing, repeatedly contacting the inside surface of the tubing with a solution of a biocompatible polymer in a water-immiscible solvent to adsorb some solution on the inside surface of the tubing, and removing excess solution, then removing solvent from the adsorbed solution to form a nonporous elastomer coating of the desired thickness on the inside surface of the tubing.

    Reinforced poly(ethylene terephthalate) compositions
    9.
    发明授权
    Reinforced poly(ethylene terephthalate) compositions 失效
    增强聚对苯二甲酸乙二醇酯组合物

    公开(公告)号：US4693941A

    公开(公告)日：1987-09-15

    申请号：US762874

    申请日：1985-08-06

    申请人： George J. Ostapchenko

    发明人： George J. Ostapchenko

    IPC分类号： C08L67/02 ,  B32B27/06 ,  B29C43/02 ,  C08K7/14

    CPC分类号： C08L67/02 ,  Y10T428/31786

    摘要： Poly(ethylene terephthalate) compositions containing a small amount of a terpolymer of ethylene containing carboxyl groups, which may be partly or completely converted to a divalent metal salt form, and reinforced with a mineral material having an aspect ratio of at least 10 can be formed into sheets which are readily thermoformable at moderate pressures and have very good thermoforming radius ratios.

    摘要翻译： 可以形成含有少量可以部分或完全转化为二价金属盐形式的含有羧基的乙烯的三元共聚物，并且可以用长度比为至少为10的矿物材料增强的聚（对苯二甲酸乙二醇酯）组合物 可以在中等压力下容易地热成型并具有非常好的热成形半径比的片材。