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    • 1. 发明授权
    • Elastic fluorohydrocarbon resin and method of producing same
    • 弹性氟代烃树脂及其制备方法
    • US5902859A
    • 1999-05-11
    • US880545
    • 1997-06-23
    • Chikashi KawashimaAkira IshiharaKatunori KawamuraSeiiti Minegishi
    • Chikashi KawashimaAkira IshiharaKatunori KawamuraSeiiti Minegishi
    • C08F2/00C08F259/08C08L51/00
    • C08L51/00C08F259/08
    • The invention relates to an elastic fluorohydrocarbon resin. This resin is obtained by graft copolymerization of a first segment which is one of fluorine-containing elastomeric and crystalline polymers with a second segment which is the other of these polymers. The first segment is prepared by copolymerizing at least one first unsaturated monomer that has peroxy bond with at least one second fluorine-containing monomer. When the first monomer is dissolved in a first solvent prior to the copolymerization, the copolymerization can be safely conducted with higher yield. This first solvent is selected from a carboxylic ester of t-butanol, methylene chloride, 1,1,1-trichloroethane, and first, second, third and fourth compounds which are respectively represented by R.sup.1 COOR.sup.2, C.sub.2 H.sub.x Cl.sub.y F.sub.z, C.sub.3 H.sub.x Cl.sub.y F.sub.z, and C.sub.4 H.sub.x Cl.sub.y F.sub.z. When the fluorine-containing elastomeric copolymer as the first segment is purified by contact with a barium salt prior to the graft copolymerization, the elastic fluorohydrocarbon resin becomes improved in thermal stability. When the fluorine-containing elastomeric copolymer having a water content of 0.1-50 wt % as the first segment is dispersed in a liquid medium containing t-butanol and water, it becomes unnecessary to dry this elastomeric copolymer prior to the graft copolymerization. When the fluorine-containing elastomeric copolymer as the first segment is dispersed in another liquid medium containing t-butanol, water, a carboxylic ester and barium hydroxide, the elastic fluorohydrocarbon resin becomes improved in thermal stability with higher graft copolymerization rate.
    • 本发明涉及弹性氟代烃树脂。 该树脂通过作为氟弹性体和结晶聚合物之一的第一链段与作为这些聚合物中的另一个的第二链段的接枝共聚获得。 第一段通过使至少一种具有过氧键的第一不饱和单体与至少一种第二含氟单体共聚来制备。 当在共聚之前将第一单体溶解在第一溶剂中时,可以更高的收率安全地进行共聚。 该第一溶剂选自叔丁醇,二氯甲烷,1,1,1-三氯乙烷的羧酸酯,以及分别由R1COOR2,C2HxClyFz,C3HxClyFz和C4HxClyFz表示的第一,第二,第三和第四化合物。 当作为第一段的含氟弹性体共聚物在接枝共聚之前通过与钡盐接触而纯化时,弹性氟代烃树脂的热稳定性提高。 当具有0.1-50重量%水含量的含氟弹性体共聚物作为第一链段分散在含有叔丁醇和水的液体介质中时,在接枝共聚之前不需要干燥该弹性体共聚物。 当作为第一段的含氟弹性体共聚物分散在含有叔丁醇,水,羧酸酯和氢氧化钡的另一种液体介质中时,弹性氟代烃树脂的热稳定性提高,接枝共聚速率更高。
    • 3. 发明授权
    • Elastic fluorohydrocarbon resin-based polymer blend with graft
copolymers of rubbers
    • 弹性氟代烃树脂基聚合物共混物与橡胶的接枝共聚物
    • US5898051A
    • 1999-04-27
    • US594208
    • 1996-01-31
    • Chikashi KawashimaFumiyoshi YoshikawaSeiiti Minegishi
    • Chikashi KawashimaFumiyoshi YoshikawaSeiiti Minegishi
    • C08L27/16C08L51/04C08L27/12C08L51/00
    • C08L27/16C08L51/04
    • The invention provides a fluorine-containing resin blend. This resin blend includes 100 parts by weight of a first resin and 1-50 parts by weight of a second resin. The first resin is one of an elastic fluorohydrocarbon resin and a vinylidene fluoride based resin. The second resin is a graft copolymer prepared by graft copolymerization of a rubber-like polymer with a first monomer and an optional second monomer. The first monomer is at least one of an acrylic ester and a methacrylic acid ester. The optional second monomer is at least one copolymerizable monomer other than the first monomer. When the elastic fluorohydrocarbon resin is used as the first resin, the resin blend is improved in extensibility upon molding in a melted condition and lowered in modulus of elasticity under a condition that the resin blend is strained by up to 20%, without impairing the elastic fluorohydrocarbon in its heat resistance, low-temperature characteristics and the like. When the vinylidene fluoride based resin is used as the first resin, the resin blend is improved in mechanical strength at low temperature, without impairing superior characteristics of the vinylidene fluoride based resin.
    • 本发明提供含氟树脂共混物。 该树脂共混物包括100重量份的第一树脂和1-50重量份的第二树脂。 第一树脂是弹性氟代烃树脂和偏二氟乙烯类树脂之一。 第二树脂是通过橡胶状聚合物与第一单体和任选的第二单体的接枝共聚制备的接枝共聚物。 第一单体是丙烯酸酯和甲基丙烯酸酯中的至少一种。 任选的第二单体是除第一单体之外的至少一种可共聚单体。 当弹性氟代烃树脂用作第一树脂时,树脂共混物在熔融条件下成型时的延展性提高,并且在树脂共混物应变达20%的条件下降低弹性模量,而不损害弹性 氟代烃的耐热性,低温特性等。 当使用偏二氟乙烯基树脂作为第一树脂时,树脂共混物在低温下的机械强度提高,而不损害偏二氟乙烯类树脂的优异特性。
    • 5. 发明授权
    • Elastic fluorohydrocarbon resin and method of producing same
    • 弹性氟代烃树脂及其制备方法
    • US5696215A
    • 1997-12-09
    • US608354
    • 1996-02-28
    • Chikashi KawashimaAkira IshiharaKatunori KawamuraSeiiti Minegishi
    • Chikashi KawashimaAkira IshiharaKatunori KawamuraSeiiti Minegishi
    • C08F2/00C08F259/08C08L51/00C08F259/00
    • C08L51/00C08F259/08
    • The invention relates to an elastic fluorohydrocarbon resin. This resin is obtained by graft copolymerization of a first segment which is one of fluorine-containing elastomeric and crystalline polymers with a second segment which is the other of these polymers. The first segment is prepared by copolymerizing at least one first unsaturated monomer that has peroxy bond with at least one second fluorine-containing monomer. When the first monomer is dissolved in a first solvent prior to the copolymerization, the copolymerization can be safely conducted with higher yield. This first solvent is selected from a carboxylic ester of t-butanol, methylene chloride, 1,1,1-trichloroethane, and first, second, third and fourth compounds which are respectively represented by R.sup.1 COOR.sup.2, C.sub.2 H.sub.x Cl.sub.y F.sub.z, C.sub.3 H.sub.x Cl.sub.y F.sub.z, and C.sub.4 H.sub.x Cl.sub.y F.sub.z. When the fluorine-containing elastomeric copolymer as the first segment is purified by contact with a barium salt prior to the graft copolymerization, the elastic fluorohydrocarbon resin becomes improved in thermal stability. When the fluorine-containing elastomeric copolymer having a water content of 0.1-50 wt % as the first segment is dispersed in a liquid medium containing t-butanol and water, it becomes unnecessary to dry this elastomeric copolymer prior to the graft copolymerization. When the fluorine-containing elastomeric copolymer as the first segment is dispersed in another liquid medium containing t-butanol, water, a carboxylic ester and barium hydroxide, the elastic fluorohydrocarbon resin becomes improved in thermal stability with higher graft copolymerization rate.
    • 本发明涉及弹性氟代烃树脂。 该树脂通过作为氟弹性体和结晶聚合物之一的第一链段与作为这些聚合物中的另一个的第二链段的接枝共聚获得。 第一段通过使至少一种具有过氧键的第一不饱和单体与至少一种第二含氟单体共聚来制备。 当在共聚之前将第一单体溶解在第一溶剂中时,可以更高的收率安全地进行共聚。 该第一溶剂选自叔丁醇,二氯甲烷,1,1,1-三氯乙烷的羧酸酯,以及分别由R1COOR2,C2HxClyFz,C3HxClyFz和C4HxClyFz表示的第一,第二,第三和第四化合物。 当作为第一段的含氟弹性体共聚物在接枝共聚之前通过与钡盐接触而纯化时,弹性氟代烃树脂的热稳定性提高。 当具有0.1-50重量%水含量的含氟弹性体共聚物作为第一链段分散在含有叔丁醇和水的液体介质中时,在接枝共聚之前不需要干燥该弹性体共聚物。 当作为第一段的含氟弹性体共聚物分散在含有叔丁醇,水,羧酸酯和氢氧化钡的另一种液体介质中时,弹性氟代烃树脂的热稳定性提高,接枝共聚速率更高。