Radiation process for producing a reactive aqueous emulsion
    12.
    发明授权
    Radiation process for producing a reactive aqueous emulsion 失效
    用于生产反应性水性乳液的辐射方法

    公开(公告)号:US4144155A

    公开(公告)日:1979-03-13

    申请号:US824819

    申请日:1977-08-15

    Abstract: A process for producing a reactive aqueous emulsion comprising dispersing a monomer mixture of (a) 65.0 - 98.8% by weight of radical polymerizable hydrophobic ethylenic unsaturated monomer having one ethylenic unsaturated bond, (b) 1.0 - 30.0% by weight of radical polymerizable ethylenic unsaturated monomer having a glycidyl group and (c) 0.2 - 5.0% by weight of a radical polymerizable ethylenic unsaturated monomer having a carboxylic group in water by virtue of a restricted amount of surface active agent and irradiating with an ionizing radiation for a total dose of more than 0.01 Mrad at temperatures ranging from -5.degree. C. to 50.degree. C. This reactive aqueous emulsion does not contain low-molecular water-soluble compounds such as a radical polymerization initiator, a pH regulator, etc. and can form a film having improved properties.

    Abstract translation: 一种制备反应性水乳液的方法,包括分散(a)65.0-98.8%(重量)具有一个烯属不饱和键的可自由基聚合的疏水性烯属不饱和单体的单体混合物,(b)1.0-30.0%重量的可自由基聚合的烯属不饱和键 具有缩水甘油基的单体和(c)0.2-5.0重量%的可自由基聚合的烯属不饱和单体,由于表面活性剂受限制而在水中具有羧基并用电离辐射照射总剂量更多 该反应性水性乳液不含低分子水溶性化合物,例如自由基聚合引发剂,pH调节剂等,并且可以形成具有 改善性能。

    Method for preparing hydrophilic polymer grafts including irradiation
    14.
    发明授权
    Method for preparing hydrophilic polymer grafts including irradiation 失效
    制备包含辐照的水解聚合物的方法

    公开(公告)号:US3854982A

    公开(公告)日:1974-12-17

    申请号:US25262272

    申请日:1972-05-12

    Inventor: AELION R FEREZY E

    Abstract: Hydrophilic polymers are formed in situ by irradiating a mixture of hydroxyalkyl methacrylate and a cross linking agent. The former polymer is optically clear and free of voids, obviating the discoloration and discontinuity deficiencies characterizing prior art polymerization employing foreign substances such as solvents, dispersing agents, catalysts and the like. In accordance with one aspect of the present invention, the hydrophilic polymer may be formed as a coating on a glass, plastic or other substrate.

    Abstract translation: 通过照射甲基丙烯酸羟烷基酯和交联剂的混合物原位形成亲水聚合物。 前一种聚合物是光学透明的并且没有空隙,消除了表征现有技术聚合中使用异物如溶剂,分散剂,催化剂等的变色和不连续性缺陷。 根据本发明的一个方面,亲水性聚合物可以形成为玻璃,塑料或其它基底上的涂层。

    Fluoroplastic composites and a process for producing the same
    19.
    发明授权
    Fluoroplastic composites and a process for producing the same 失效
    氟塑料复合材料及其制造方法

    公开(公告)号:US06204301B1

    公开(公告)日:2001-03-20

    申请号:US09395213

    申请日:1999-09-14

    CPC classification number: C08J3/28 C08J5/04 C08J2327/18 Y10S522/912

    Abstract: Fibers as a reinforcing substrate are impregnated with the particles of polytetrafluoroethylene and pressed into a shape at the melting point of polytetrafluoroethylene. Alternatively, the reinforcing substrate sandwiched between polytetrafluoroethylene sheets is pressed into a shape at the melting point of polytetrafluoroethylene. In either case, the shaped article is then exposed to an ionizing radiation in an oxygen-free atmosphere at the melting point of polytetrafluoroethylene. The inherent characteristics of the polytetrafluoroethylene, i.e., heat resistance, chemical resistance, abrasion resistance and lubricity, are retained and yet radiation resistance and resin transparency are imparted.

    Abstract translation: 作为增强基材的纤维用聚四氟乙烯颗粒浸渍并压制成聚四氟乙烯熔点的形状。 或者,夹在聚四氟乙烯片之间的增强基板被压制成聚四氟乙烯熔点的形状。 在任一情况下,成型制品然后在聚四氟乙烯的熔点下在无氧气氛中暴露于电离辐射。 保留聚四氟乙烯的固有特性,即耐热性,耐化学性,耐磨性和润滑性,并赋予耐辐射性和树脂透明性。

    Method of preparing multiconstituent fibers and nonwoven structures
    20.
    发明授权
    Method of preparing multiconstituent fibers and nonwoven structures 失效
    制备多组分纤维和非织造结构的方法

    公开(公告)号:US5582667A

    公开(公告)日:1996-12-10

    申请号:US356013

    申请日:1994-12-14

    Abstract: Multiconstituent fibers prepared from two or more polymers, with at least one of these polymers being randomly dispersed through the fiber, in the form of domains. At least about 40 percent by weight of these domains have one length of at least 20 microns, measured in the direction along the fiber axis, and have another length, measured along the longest line dissecting the domain cross-section in a plane perpendicular to the fiber axis, of at least about 5 percent of the fiber equivalent diameter.

    Abstract translation: 由两种或多种聚合物制备的多取代纤维,其中至少一种聚合物以畴的形式随机分散穿过纤维。 至少约40重量%的这些领域具有至少20微米的长度,沿着纤维轴线的方向测量,并且具有另一长度,沿着最长的线测量,所述最长线在垂直于所述纤维轴的平面中剖开畴横截面 纤维轴线为纤维当量直径的至少约5%。

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