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    • 4. 发明申请
    • N-VINYL CYCLIC LACTAM POLYMER, PRODUCTION METHOD THEREOF, AND APPLICATION THEREOF
    • N-乙烯基环状乳液聚合物,其生产方法及其应用
    • US20090198029A1
    • 2009-08-06
    • US11915590
    • 2006-05-26
    • Takahiro TsumoriDaisuke ImaiYoshikazu Fujii
    • Takahiro TsumoriDaisuke ImaiYoshikazu Fujii
    • C08F4/30C08F26/06
    • C08F271/02C11D3/3776
    • To provide: an N-vinyl cyclic lactam polymer, which has excellent dispersibility and adsorptivity, and high calcium-ion capturing capability and can be preferably used in, for example, a detergent additive application; an application thereof; and a production method of the N-vinyl cyclic lactam polymer, the production method being capable of efficiently producing such an N-vinyl cyclic lactam polymer. An N-vinyl cyclic lactam polymer produced by a polymerization of a monomer component containing a carboxyl group-containing unsaturated monomer with a polymer having an N-vinyl cyclic lactam unit, wherein the carboxyl group-containing unsaturated monomer is 200 to 9900 parts by weight, relative to 100 parts by weight of the polymer having an N-vinyl cyclic lactam unit, and the N-vinyl cyclic lactam polymer has a viscosity at 25° C. of 100000 mPa·s or less in an aqueous solution with a solid content of 25% by weight.
    • 提供:分散性和吸附性优异,钙离子捕获能力高的N-乙烯基环状内酰胺聚合物,优选用于例如洗涤剂添加剂用途中。 其应用; 以及N-乙烯基环内酰胺聚合物的制造方法,该制造方法能够有效地制造这种N-乙烯基环状内酰胺类聚合物。 通过含有含羧基的不饱和单体的单体组分与具有N-乙烯基环状内酰胺单元的聚合物的聚合制备的N-乙烯基环状内酰胺聚合物,其中含羧基的不饱和单体为200〜9900重量份 相对于100重量份的具有N-乙烯基环内酰胺单元的聚合物,N-乙烯基环内酰胺聚合物在固体含量的水溶液中的25℃下的粘度为100000mPa.s以下 为25重量%。
    • 8. 发明授权
    • Vinylpyrrolidone-based copolymer and a method for production thereof
    • 乙烯基吡咯烷酮类共聚物及其制造方法
    • US07851568B2
    • 2010-12-14
    • US11907906
    • 2007-10-18
    • Daisuke ImaiKeiko IzumiYoshitomo Nakata
    • Daisuke ImaiKeiko IzumiYoshitomo Nakata
    • C08F26/10
    • C08F226/10
    • There is provided a vinylpyrrolidone-based copolymer having as essential components N-vinylpyrrolidone and hydroxyl group-containing (meth)acrylate, which gives a favorable crosslinked coating film, and a method for production by which the copolymer is easily obtained.A vinylpyrrolidone-based copolymer of the present invention contains a constitutional unit derived from N-vinylpyrrolidone and a constitutional unit derived from hydroxyl group-containing (meth)acrylate at a specific ratio, in which a K value according to Fikentscher is 12 or more, water insoluble matter is 0.5% by mass (on the basis of solid content) or less, and each content of iron, nickel, chromium, sodium and calcium is 500 ppb (on the basis of mass: the same hereinafter) or less, or electrical conductivity of a 10% by mass-aqueous solution of the vinylpyrrolidone-based copolymer is 35 μS/cm or less.
    • 提供了作为必要成分的N-乙烯基吡咯烷酮和含羟基(甲基)丙烯酸酯的乙烯基吡咯烷酮类共聚物,其具有良好的交联涂膜,以及易于获得共聚物的制造方法。 本发明的基于乙烯基吡咯烷酮的共聚物含有由N-乙烯基吡咯烷酮衍生的结构单元和来自含羟基(甲基)丙烯酸酯的结构单元,其特征在于,其中根据Fikentscher的K值为12以上, 水不溶物为0.5质量%(以固体成分为基准)以下,铁,镍,铬,钠和钙的含量为500ppb(以质量计:下同)或以下 乙烯基吡咯烷酮类共聚物的10质量%水溶液的导电率为35μS/ cm以下。