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    • 4. 发明授权
    • Fluorine-containing graft copolymer and toner using the same
    • 含氟接枝共聚物和使用其的调色剂
    • US5328794A
    • 1994-07-12
    • US031952
    • 1993-03-16
    • Tsubuko KazuoShinichi KuramotoKazuhiko UmemuraToshihiko TakahashiHidemi Uematsu
    • Tsubuko KazuoShinichi KuramotoKazuhiko UmemuraToshihiko TakahashiHidemi Uematsu
    • C08F291/00G03G9/087G03G9/08C08F265/04
    • G03G9/08791C08F291/00G03G9/08728G03G9/08786
    • A fluorine-containing graft copolymer prepared by a step (i) of polymerizing a monomer having formula (I) and an unsaturated carboxylic acid or a monomer having a glycidyl group to obtain a copolymer, ##STR1## wherein R represents --H or --CH.sub.3 group; and A represents --COOC.sub.n H.sub.2n+1 or OC.sub.n H.sub.2n+1, in which n is an integer of 6 to 20; a step (ii) of esterifying the resulting copolymer by using a monomer having a glycidyl group in the case where a constituting monomer of the above copolymer is an unsaturated carboxylic acid, or by using an unsaturated carboxylic acid in the case where a constituting monomer of the above copolymer is a monomer having a glycidyl group; and a step (iii) of graft-polymerizing a monomer comprising at least fluoroalkyl acrylate or fluoroalkyl methacrylate on the above esterified copolymer. In addition, a toner comprising a coloring agent and a resin component which comprises the above-mentioned fluorine-containing graft copolymer is disclosed.
    • 通过聚合具有式(I)的单体和不饱和羧酸或具有缩水甘油基的单体的步骤(i)制备的含氟接枝共聚物以获得共聚物; A表示-COOC n H 2n + 1或OC n H 2n + 1,其中n为6至20的整数; 在上述共聚物的构成单体为不饱和羧酸的情况下使用具有缩水甘油基的单体或通过使用不饱和羧酸在所得共聚物的构成单体的情况下酯化所得共聚物的工序(ii) 上述共聚物是具有缩水甘油基的单体; 和在上述酯化共聚物上至少含有丙烯酸氟代烷基酯或甲基丙烯酸氟烷基酯的单体的接枝聚合步骤(iii)。 此外,公开了包含着色剂和包含上述含氟接枝共聚物的树脂组分的调色剂。
    • 8. 发明授权
    • Liquid developer for developing electrostatic image and image forming method
    • 用于显影静电图像和图像形成方法的液体显影剂
    • US06447973B1
    • 2002-09-10
    • US09644266
    • 2000-08-23
    • Tsuyoshi AsamiKazuo TsubukoAiko IshikawaAkihiro KosekiTakeo KudohKazuhiko Umemura
    • Tsuyoshi AsamiKazuo TsubukoAiko IshikawaAkihiro KosekiTakeo KudohKazuhiko Umemura
    • G03G900
    • G03G9/135G03G9/125G03G9/131G03G9/132
    • A liquid developer containing a carrier liquid containing silicone oil, and toner particles dispersed in the carrier liquid and each containing a coloring agent and a resin, the resin contains at least one member selected from the group consisting of the following resins (a)-(g): (a): rosin polymers having a softening point of 50-190° C., a glass transition point of 10-170° C. and a molecular weight of 2,000-40,000 and obtained by reacting (a1) a rosin glycidyl ester, (a2) dicarboxylic acid or dicarboxylic anhydride, (a3) at least one crosslinking agent selected from the group consisting of polyfunctional epoxy compounds, tri- or more polybasic acids or anhydrides thereof tri- or more polyhydric alcohols, and (a4) a dihydric alcohol; (b): vinyl polymers having a ratio of the weight average molecular weight to the number average molecular weight of greater than 4; (c): olefin resins having a melt index of 2.5-700; (d): polyolefins or polyolefin copolymers having an acid value of 0.5-80 and a melt viscosity of 50-20,000 mpa·s at 200° C.; (e): polymers obtained by crosslinking carboxyl group-containing vinyl polymers with an amine; (f): vinyl polymers having at least 0.005% by weight of a crosslinking monomer based on a total monomer; and (g): silicone copolymers, silicone rubber or silicone-modified resins. A liquid developer containing a carrier liquid containing silicone oil, toner particles each containing a coloring agent and a resin, and an erucamide compound.
    • 含有含有硅油的载体液体的液体显影剂和分散在载体液体中并分别含有着色剂和树脂的调色剂颗粒,所述树脂含有选自以下树脂中的至少一种:(a) - ( g):( a):软化点为50-190℃,玻璃化转变温度为10-170℃,分子量为2,000-40,000的松香聚合物,通过使(a1)松香缩水甘油基 酯,(a2)二羧酸或二羧酸酐,(a3)至少一种交联剂,其选自多官能环氧化合物,三元以上多元酸或其酸酐三元以上多元醇,和(a4)a 二元醇;(b):重均分子量与数均分子量之比大于4的乙烯基聚合物;(c):熔体指数为2.5-700的烯烃树脂;(d):聚烯烃或 酸值为0.5-80的聚烯烃共聚物和a (e):通过使含羧基的乙烯基聚合物与胺交联而获得的聚合物;(f):具有至少0.005重量%的交联单体的乙烯基聚合物 基于总单体; 和(g):硅氧烷共聚物,硅橡胶或硅氧烷改性树脂。 含有含有硅油的载体液体,各自含有着色剂和树脂的调色剂颗粒和芥酸酰胺化合物的液体显影剂。