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    • 2. 发明申请
    • PROCESS FOR PREPARING FLUORINE-CONTAINING POLYMER
    • 制备含氟聚合物的方法
    • US20090215980A1
    • 2009-08-27
    • US12300252
    • 2007-05-09
    • Mitsuru KishineMasanori KitaichiDaisuke OtaMasahiko Oka
    • Mitsuru KishineMasanori KitaichiDaisuke OtaMasahiko Oka
    • C08G61/12
    • C08F214/18C08F2/001C08F2/22C08F2/44C08F214/22
    • The fluorine-containing polymer having a small number of ionic functional groups is prepared by a process, in which emulsion polymerization proceeds stably and produced polymer does not adhere to side walls of a polymerization reactor even without using an emulsifying agent, and the process comprises a first step for preparing a dispersion comprising fluorine-containing emulsified particles having ionic functional groups by polymerizing a fluorine-containing monomer mixture comprising a perhalo ethylenic monomer and a nonperhalo ethylenic monomer by using a water soluble radical polymerization initiator without adding an emulsifying agent, and a second step for preparing a fluorine-containing polymer having ionic functional groups in a small amount by emulsion polymerization of fluorine-containing monomers using a radical polymerization initiator in the presence of the fluorine-containing emulsified particles having ionic functional groups without adding an emulsifying agent, wherein the fluorine-containing emulsified particles having ionic functional groups prepared in the first step are used in an amount of from 0.01 to 5.0% by mass based on the fluorine-containing polymer to be obtained in the second step, and an amount of the water soluble radical polymerization initiator used in the first step is from 0.01 to 1,000% by mass based on the fluorine-containing emulsified particles having ionic functional groups prepared in the first step.
    • 具有少量离子官能团的含氟聚合物通过乳液聚合稳定进行并且生产的聚合物即使不使用乳化剂也不粘附到聚合反应器的侧壁的方法制备,并且该方法包括 通过在不添加乳化剂的情况下使用水溶性自由基聚合引发剂使包含全卤乙烯性单体和非卤代乙烯性单体的含氟单体混合物聚合,制备包含具有离子性官能团的含氟乳化颗粒的分散体的第一步骤, 在不添加乳化剂的情况下,在具有离子性官能团的含氟乳化粒子的存在下,使用自由基聚合引发剂使含氟单体进行乳液聚合,制备少量具有离子性官能团的含氟聚合物的第二工序, 其中t 相对于第二工序中得到的含氟聚合物,第一工序中制备的具有离子性官能团的含氟乳化粒子的使用量为0.01〜5.0质量%,水溶性 基于在第一步骤中制备的具有离子性官能团的含氟乳化颗粒,第一步中使用的自由基聚合引发剂为0.01〜1000质量%。
    • 7. 发明申请
    • CURABLE COMPOSITION AND MOLDED ARTICLE MADE OF SAME
    • 可固化组合物和成型品
    • US20110112265A1
    • 2011-05-12
    • US13002016
    • 2009-06-29
    • Keiko WashinoShoji FukuokaDaisuke OtaMitsuru Kishine
    • Keiko WashinoShoji FukuokaDaisuke OtaMitsuru Kishine
    • C08F4/00C08F2/38
    • C09K3/1009C08K5/16C08L27/16
    • A curable composition comprising (A) a vinylidene fluoride type elastomer which is a copolymer of vinylidene fluoride (a1), at least one perfluoroolefin (a2) selected from the group consisting of tetrafluoroethylene, hexafluoropropylene and perfluoro(alkyl vinyl ether) and a cyano group-containing monomer (a3) (the proportion of vinylidene fluoride exceeds 20% by mole), and (B) a compound generating ammonia at 40° to 330° C. alone as a curing agent. The present invention can provide a curable composition of a vinylidene fluoride type elastomer assuring improved crosslinking speed and making it possible to use a cheap curing agent, and a molded article obtained from the curable composition. Physical properties under normal conditions can also be improved by the presence of the solvent having affinity for the compound generating ammonia.
    • 一种可固化组合物,其包含(A)偏二氟乙烯类弹性体,其是偏二氟乙烯(a1),至少一种选自四氟乙烯,六氟丙烯和全氟(烷基乙烯基醚)的全氟烯烃(a2)的共聚物和氰基 (a3)(偏二氟乙烯的比例超过20摩尔%),(B)仅在40〜330℃产生氨的化合物作为固化剂。 本发明可以提供一种偏二氟乙烯类弹性体的固化性组合物,其确保交联速度提高,并且可以使用廉价的固化剂,以及由可固化组合物获得的成型体。 在正常条件下的物理性能也可以通过对产生氨的化合物具有亲和性的溶剂的存在来改善。
    • 9. 发明申请
    • Peroxide-Vulcanizable Fluorine-Containing Elastomer Composition
    • 过氧化物可硫化含氟弹性体组合物
    • US20080306196A1
    • 2008-12-11
    • US11658255
    • 2005-07-28
    • Masaki IrieYousuke NishimuraManabu FujisawaMitsuru KishineDaisuke Ota
    • Masaki IrieYousuke NishimuraManabu FujisawaMitsuru KishineDaisuke Ota
    • C08K5/14
    • C08F214/26B82Y30/00C08F214/22C08K5/14C08L27/12
    • The present invention provides a peroxide-vulcanizable fluorine-containing elastomer composition which is remarkably improved in fluidity and thereby exhibits improved processability, though conventional fluorine-containing elastomer compositions could be molded only by a molding process having a problem in its productivity, for instance, compression molding or transfer molding which has been used so far as a general molding process. The present invention further provides a molded article obtained by vulcanizing the composition. The present invention also provides a fluorine-containing elastomer composition in which a large amount of a filler can be blended. Specifically, the present invention relates to the fluorine-containing elastomer composition comprising a fluorine-containing elastomer (A) composed of a structural unit derived from vinylidene fluoride and/or a structural unit of tetrafluoroethylene and a structural unit derived from at least one other monomer, and having (a) a number average molecular weight (Mn) of 30,000 to 70,000 g/mol, and (b) an iodine content of 0.3 to 1.0% by weight and an organoperoxide vulcanizing agent (B).
    • 本发明提供了一种过氧化物可硫化的含氟弹性体组合物,其流动性显着提高,从而表现出改进的加工性能,但是常规的含氟弹性体组合物可以仅通过其生产率问题的模制方法模制, 压缩成型或传递模塑,其已经被用于一般的模塑工艺。 本发明还提供通过硫化该组合物获得的模制品。 本发明还提供了可以混合大量填料的含氟弹性体组合物。 具体地说,本发明涉及包含由偏氟乙烯衍生的结构单元和/或四氟乙烯的结构单元构成的含氟弹性体(A)和来自至少一种其它单体的结构单元的含氟弹性体组合物 (a)数均分子量(Mn)为30,000〜70,000g / mol,(b)碘含量为0.3〜1.0重量%和有机过氧化物硫化剂(B)。