Process for production of separators for use in cells
    3.
    发明授权
    Process for production of separators for use in cells 失效
    用于生产细胞分离器的方法

    公开(公告)号:US4376794A

    公开(公告)日:1983-03-15

    申请号:US308904

    申请日:1981-10-05

    IPC分类号: C08F255/02 H01M2/16 B05D3/06

    CPC分类号: H01M2/1653 C08F255/02

    摘要: A novel process for the production of a separator for use in a cell to prevent the short-circuiting of positive active material and negative active material comprises irradiating a polyolefin film 150 .mu.m or less thick with ionizing radiation at a dose rate of 5.times.10.sup.4 -10.sup.7 rads/sec. to give a total dose of 1 Mrad or more, contacting the irradiated film with an aqueous solution of a terminally unsaturated monomer such as acrylic acid, methacrylic acid and the like at a temperature of 10.degree. C.-60.degree. C. to thereby cause grafting of the monomer onto the polyolefin film before the grafted polymer film is treated with an aqueous alkaline solution to finally obtain the separator for use in a cell, which is substantially improved in that it shows low electrical resistance and is excellent both in its acid resistance and mechanical strength.

    摘要翻译: 用于制造用于电池中的隔板的新颖方法,以防止正极活性物质和负极活性物质的短路,包括以5×104-107的剂量率的电离辐射照射150μm以下的聚烯烃膜 拉德/秒。 总共剂量为1Mrad或更多,在10℃-60℃的温度下使照射的膜与诸如丙烯酸,甲基丙烯酸等的末端不饱和单体的水溶液接触,从而导致 在接枝聚合物膜用碱性水溶液处理之前将单体接枝到聚烯烃膜上,最终获得用于电池的隔膜,其实质上改善了,因为它显示出低的电阻,并且耐酸性优异 和机械强度。

    Battery separator and method of producing the same
    4.
    发明授权
    Battery separator and method of producing the same 失效
    电池分离器及其制造方法

    公开(公告)号:US4273840A

    公开(公告)日:1981-06-16

    申请号:US118100

    申请日:1980-02-04

    IPC分类号: H01M2/16

    摘要: A battery separator composed of a composite sheet of film to which a monomer having a hydrophilic or electrolytic group is grafted is disclosed. Said film consists of a first polymeric layer containing a substance capable of catching a metal ion dissolved from a positive or negative active material and a second polymeric layer integrally bonded to either one or both sides of the first polymeric layer and which contains no such substance or contains it in a smaller amount that that contained in said first polymeric layer. Also disclosed is a method of producing a battery separator by irradiating such composite sheet of film with ionizing radiation and immersing the irradiated film in a solution of a monomer containing a hydrophilic or electrolytic group or bringing it into contact with the monomer solution to thereby graft the monomer to the film.

    摘要翻译: 公开了一种由具有亲水性或电解质基团的单体的复合膜复合体构成的电池隔膜。 所述膜由含有能够捕获从正极或负极活性材料溶解的金属离子的物质的第一聚合物层和与第一聚合物层的一侧或两侧整体结合并且不含此类物质的第二聚合物层组成, 含有较少的量,其含有在所述第一聚合物层中。 还公开了一种通过用电离辐射照射这种薄膜复合片材并将照射的膜浸入含有亲水或电解基团的单体的溶液中或使其与单体溶液接触从而将 单体到膜。

    Novel method of producing ion exchange membrane
    6.
    发明授权
    Novel method of producing ion exchange membrane 失效
    制备离子交换膜的新方法

    公开(公告)号:US4379200A

    公开(公告)日:1983-04-05

    申请号:US302054

    申请日:1981-09-14

    摘要: A method of producing an ion exchange membrane comprising irradiating a polyethylene film not more than 150 .mu.m thick with ionizing radiation for a total dose of 1-30 Mrads in vacuum or in an inert gas, bringing the irradiated film into contact with a 15 to 50 wt % aqueous solution of acrylic acid and/or methacrylic acid at 15.degree. to 50.degree. C. to have acrylic acid and/or methacrylic acid graft copolymerized onto polyethylene, followed by treatment of the graft copolymer with a 2 to 10 wt % aqueous solution of potassium hydroxide.

    摘要翻译: 一种离子交换膜的制造方法,其特征在于,在真空中或惰性气体中,以1〜30Mrad的总剂量照射不超过150μm厚的电离辐射聚乙烯膜,使照射膜与15〜 50重量%丙烯酸和/或甲基丙烯酸的水溶液在15至50℃下进行丙烯酸和/或甲基丙烯酸接枝共聚到聚乙烯上,接着用2至10重量%的水溶液处理接枝共聚物 氢氧化钾溶液。

    Method of producing a membrane of graft copolymer
    7.
    发明授权
    Method of producing a membrane of graft copolymer 失效
    生产接枝共聚物膜的方法

    公开(公告)号:US4288467A

    公开(公告)日:1981-09-08

    申请号:US118105

    申请日:1980-02-04

    摘要: A method of producing a membrane of graft copolymer by irradiating a polyolefine film with ionizing radiation before or simultaneously with graft copolymerizing an olefinic monomer or a mixture of an olefinic monomer and a polyene compound onto the polyolefine is disclosed. The method is characterized by graft copolymerization wherein the polyolefine base film is reciprocated between a pair of fixed reversing rollers through a mobile roller.

    摘要翻译: 公开了一种通过在将烯属单体或烯属单体和多烯化合物的混合物接枝共聚到聚烯烃之前或同时照射具有电离辐射的聚烯烃薄膜来制备接枝共聚物膜的方法。 该方法的特征在于接枝共聚,其中聚烯烃基膜通过移动辊在一对固定的反转辊之间往复运动。

    Fluoro carbon graft copolymer and process for the production thereof
    9.
    发明授权
    Fluoro carbon graft copolymer and process for the production thereof 失效
    氟碳接枝共聚物及其制备方法

    公开(公告)号:US4129617A

    公开(公告)日:1978-12-12

    申请号:US849442

    申请日:1977-11-07

    CPC分类号: C08F259/08

    摘要: A novel graft copolymer and a process for the production thereof is disclosed, said graft copolymer comprising a backbone chain of a fluoropolymer and side chains grafted thereon consisting essentially of at least a member selected from the group consisting of acyloxystyrene, diacyloxystyrene, hydroxystyrene and dihydroxystyrene or consisting essentially of a mixture of at least a member selected from the group mentioned above and a polyene compound. The grafting is conveniently carried out with the aid of an ionizing radiation. The novel graft copolymer has a wide variety of uses due to its improved characteristic properties such as, for example, improved adhesion properties, improved dyeing properties, improved reactivity to other compounds and the like.

    摘要翻译: 公开了一种新颖的接枝共聚物及其制备方法,所述接枝共聚物包括含氟聚合物的主链和其上接枝的侧链,其基本上由至少一种选自酰氧基苯乙烯,二酰氧基苯乙烯,羟基苯乙烯和二羟基苯乙烯的成员组成, 基本上由至少选自上述基团的成员和多烯化合物的混合物组成。 借助电离辐射方便地进行接枝。 新颖的接枝共聚物由于其改进的特性,例如改进的粘合性能,改进的染色性能,改善的对其它化合物的反应性等而具有广泛的用途。