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    • 3. 发明申请
    • (METH)ACRYLATE COPOLYMER AND METHOD FOR PRODUCING SAME
    • (METH)丙烯酸酯共聚物及其生产方法
    • US20150252129A1
    • 2015-09-10
    • US14426293
    • 2013-10-02
    • NIPPON SHOKUBAI CO., LTD.
    • Masato NakanoYuki Sano
    • C08F220/06
    • C08F220/06C02F5/00C02F5/10C02F5/105C08F2/38C08F216/14C23F11/10C23F11/173C23F14/02C08F216/1466
    • Provided is a copolymer having excellent calcium ion trapping ability, calcium carbonate dispersing capacity, and gel resistance. A (meth)acrylic acid-based copolymer contains, as essential structural units, a structural unit (a) derived from a monomer represented by the following formula (1) in an amount of 2% by mole or more and 9% by mole or less, and a structural unit (b) derived from a (meth)acrylic acid (salt) in an amount of 91% by mole or more and 98% by mole or less, relative to 100% by mole of structural units derived from all monomers, wherein the copolymer contains a sulfonic acid (salt) group at least one end of the main chain and has a weight average molecular weight of 7000 to 100000, wherein R2 represents a hydrogen atom or a methyl group; and X and Y each independently represent a hydroxyl group or a sulfonic acid (salt) group (at least one of X and Y represents a sulfonic acid (salt) group).
    • 提供了具有优异的钙离子捕获能力,碳酸钙分散能力和凝胶电阻的共聚物。 (甲基)丙烯酸系共聚物作为必要结构单元包含由下式(1)表示的单体衍生的结构单元(a),其含量为2摩尔%以上且9摩尔%,或者 相对于衍生自全部的结构单元的100摩尔%,衍生自(甲基)丙烯酸(盐)的结构单元(b)的含量为91摩尔%以上且98摩尔%以下 单体,其中所述共聚物在主链的至少一个末端含有磺酸(盐)基团,其重均分子量为7000〜100000,其中R2表示氢原子或甲基; X和Y各自独立地表示羟基或磺酸(盐)基(X和Y中的至少一个表示磺酸(盐)基)。
    • 10. 发明申请
    • Process for producing fluoroionomer, method for purification and concentration of the ionomer, and method of film formation
    • 氟代离聚物的制造方法,离聚物的净化和浓缩方法以及成膜方法
    • US20030023015A1
    • 2003-01-30
    • US10182737
    • 2002-08-14
    • Masayoshi TatemotoTadashi InoKenji IshiiTakuji IshikawaTakuya Arase
    • C08F012/30
    • C08F216/1466C08F6/003C08L27/12
    • The present invention provides a process for producing a fluorinated ionomer, comprising copolymerizing, in the presence of a polymerization initiator, (i) a compound represented by Formula (I) (M)1/LOSO2CFY(CF2)mO(CFXCF2O)nCFnullCF2nullnull(I) wherein M is H or a metal with a valence of L (L is 1, 2 or 3), X is F, C1 or CF3, Y is halogen, m is 1 to 5, and n is 0 to 5, (ii) tetrafluoroethylene and (iii) at least one third monomer selected from the group consisting of hexafluoropropylene, chlorotrifluoroethylene, vinylidene fluoride, CF2nullCFORf (Rf is C1 to C5 perfluoroalkyl) and ethylene. The present invention further provides a method for purifying and concentrating a fluorinated ionomer, comprising ultrafiltration or dialysis of a fluorinated ionomer solution or dispersion, and a method for forming a film of the fluorinated ionomer.
    • 本发明提供了一种制备氟化离聚物的方法,包括在聚合引发剂存在下,将(ⅰ)由式(I)(M)1 / LOSO2CFY(CF2)mO(CFXCF2O)nCF = CF2 (I)其中M为H或价数为L(L为1,2或3)的金属,X为F,C1或CF3,Y为卤素,m为1至5,n为0至5, (ii)四氟乙烯和(iii)至少一种选自六氟丙烯,三氟氯乙烯,偏二氟乙烯,CF 2 = CFOR f(R f为C 1至C 5全氟烷基)和乙烯的第三单体。 本发明还提供了一种用于纯化和浓缩氟化离聚物的方法,其包括氟离聚物溶液或分散体的超滤或透析,以及形成氟化离聚物膜的方法。