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    Crosslinked polyester resin from trihydric alcohol
    1.
    发明授权
    Crosslinked polyester resin from trihydric alcohol 失效
    来自三氯乙烯的交联聚酯树脂

    公开(公告)号：US5057596A

    公开(公告)日：1991-10-15

    申请号：US553415

    申请日：1990-07-17

    申请人： Shinji Kubo ,  Noriyuki Tajiri ,  Masayuki Takyu ,  Ryo Funato ,  Hirokazu Ito

    发明人： Shinji Kubo ,  Noriyuki Tajiri ,  Masayuki Takyu ,  Ryo Funato ,  Hirokazu Ito

    IPC分类号： C08G63/12 ,  C08G63/20 ,  G03G9/087

    CPC分类号： G03G9/08793 ,  C08G63/20 ,  G03G9/08755

    摘要： Disclosed is a crosslinked polyester resin comprised of, based on the total acid units, (a) 1 to 30 mole % of units of a trihydric or higher alcohol or units of a trivalent or higher carboxylic acid, (b) 1 to 60 mole % of units of an alicyclic diol in which at least one alcohol component is a secondary alcohol, (c) 40 to 100 mole % of units of an aromatic dicarboxylic acid and (d) 40 to 99 mole % of units of a non-alicyclic diol, wherein the acid value is 0.5 to 25 mg-KOH/g, the glass transition temperature is 50.degree. to 80.degree. C., the softening temperature is not higher than 145.degree. C., the fixing-possible temperature covers a range of at least 30.degree. C., and the difference between the softening temperature and the glass transition temperature is not larger than 75.degree. C. The crosslinked polyester is used for toner for electrostatic recording.

    Crosslinked polyester for toner and process for preparation thereof
    2.
    发明授权
    Crosslinked polyester for toner and process for preparation thereof 失效
    用于调色剂的交联聚酯和其制备方法

    公开(公告)号：US4980448A

    公开(公告)日：1990-12-25

    申请号：US323793

    申请日：1989-03-15

    申请人： Noriyuki Tajiri ,  Masayuki Takyu ,  Hirokazu Ito ,  Ryo Funato ,  Shinji Kubo

    发明人： Noriyuki Tajiri ,  Masayuki Takyu ,  Hirokazu Ito ,  Ryo Funato ,  Shinji Kubo

    IPC分类号： C08G63/20 ,  G03G9/087

    CPC分类号： G03G9/08755 ,  C08G63/20 ,  G03G9/08793

    摘要： Disclosed is a crosslinked polyester for a toner, which has an acid value of 5 to 20 mgKOH/g, a flow index of 0.1.times.10.sup.-4 to 300.times.10.sup.-4 ml/sec and a softening point lower than 145.degree. C., the polyester being formed by mixing a dicarboxylic acid component, a diol component and at least one crosslinking component selected from a polyfunctional carboxylic acid component having a trivalency or a higher valency and a polyhydric alcohol component having a trivalency or a higher valency at a mixing ratio represented by the following formula (1), reacting the mixture at a reaction ratio represented by the following formula (2) and subjecting the esterification product to polycondensation and crosslinking.0.8.ltoreq.R.ltoreq.1+5a (1)0.7.ltoreq.P.ltoreq.[R/(1+a)].sup.1/2 (2)wherein R is the ratio of the mole number of the total alcohol components to the mole number of the total acid components, a is the ratio of the sum of the mole number of the polyvalent carboxylic acid component and the mole number of the polyhydric alcohol component to the mole number of the total acid components, and P is the conversion of the carboxylic acid components.The toner comprising this crosslinked polyester as the binder has an excellent offset-preventing property, low-temperature fixing property and blocking resistance and good charging characteristics with a high moisture resistance, and gives a copied image having good sharpness and image density.

    Polyester resin for toner
    3.
    发明授权
    Polyester resin for toner 失效
    聚碳酸酯树脂

    公开(公告)号：US5153301A

    公开(公告)日：1992-10-06

    申请号：US811619

    申请日：1991-12-23

    申请人： Noriyuki Tajiri ,  Hirokazu Ito ,  Masayuki Takyu ,  Ryo Funato ,  Shinji Kubo

    发明人： Noriyuki Tajiri ,  Hirokazu Ito ,  Masayuki Takyu ,  Ryo Funato ,  Shinji Kubo

    IPC分类号： C08G63/181 ,  C08G63/672 ,  C09D167/02 ,  G03G9/087

    CPC分类号： G03G9/08755 ,  C08G63/181 ,  C08G63/672 ,  C09D167/02

    摘要： A polyester resin comprised of (a) units derived from a terephthalic acid component and/or a isophthalic acid component, (b) 0 to 80 mole %, based on the total carboxylic acid component, of units derived from a diol component represented by the formula: ##STR1## wherein R represents an alkyl group having 2 or 3 carbon atoms, and x and y are integers satisfying the requirement of 2.ltoreq.x+y.ltoreq.6,and (c) 20 to 200 mole %, based on the total carboxylic acid component, of units derived from an aliphatic diol component. The polyester has a weight average molecular weight M.sub.w of 3,000 to 20,000, a number average molecular weight M.sub.n of 1,000 to 10,000, a glass transition temperature T.sub.g of 40.degree. to 70.degree. C., and a softening temperature of 70.degree. to 130.degree. C. The polyester is valuable for a toner.

    摘要翻译： 一种聚酯树脂，其包含（a）由对苯二甲酸组分和/或间苯二甲酸组分衍生的单元，（b）基于总羧酸组分为0至80摩尔％的衍生自由 式：其中R表示具有2或3个碳原子的烷基，x和y是满足2≤x+y≤6的整数，（c）20〜200摩尔％ 基于总羧酸组分，衍生自脂族二醇组分的单元。 聚酯的重均分子量Mw为3,000〜20,000，数均分子量Mn为1,000〜10,000，玻璃化转变温度Tg为40〜70℃，软化温度为70〜130℃ 聚酯对于调色剂是有价值的。

    Binder for toner and process for producing the same
    10.
    发明授权
    Binder for toner and process for producing the same 失效
    用于调色剂的粘合剂及其制造方法

    公开(公告)号：US5227273A

    公开(公告)日：1993-07-13

    申请号：US780383

    申请日：1991-10-23

    申请人： Keiji Yoshida ,  Ryo Funato ,  Syuji Takahiro ,  Shinji Kubo ,  Motoshi Inagaki

    发明人： Keiji Yoshida ,  Ryo Funato ,  Syuji Takahiro ,  Shinji Kubo ,  Motoshi Inagaki

    IPC分类号： G03G9/087

    CPC分类号： G03G9/08702

    摘要： A binder for toner comprising a styrene/(meth)acrylate copolymer obtained by polymerizing polymerizable vinyl monomers comprising styrene and/or its derivative and a (meth)acrylate by suspension polymerization of 0.001-3 wt. %, based on the total weight of the monomers used, of at least one polyvinyl alcohol having a degree of saponification of 75-98% and 1.0-10 wt. %, based on the total weight of the monomers used, of at least one azo initiator. According to the present invention, there is provided a binder for a toner which produces copied images having excellent stability of image quality (life) even after a large number of times of copying.

    摘要翻译： 一种用于调色剂的粘合剂，其包含通过使0.001-3重量％的悬浮聚合聚合包含苯乙烯和/或其衍生物的可聚合乙烯基单体和（甲基）丙烯酸酯而获得的苯乙烯/（甲基） ％，基于所使用的单体的总重量，至少一种皂化度为75-98％和1.0-10wt。％的聚乙烯醇。 ％，基于所用单体的总重量，至少一种偶氮引发剂。 根据本发明，提供了一种用于调色剂的粘合剂，即使在大量复印之后也产生具有优异的图像质量（寿命）稳定性的复印图像。