会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 122. 发明授权
    • Photoconductor coating having perfluoro copolymer and composition for
making same
    • US5834564A
    • 1998-11-10
    • US641125
    • 1996-04-30
    • Khe NguyenSivapackia Ganapathiappan
    • Khe NguyenSivapackia Ganapathiappan
    • C08F116/12C08F216/14C08F290/06C08F299/00C09D129/10C09D155/00G03G5/147C08F8/00C08F220/20C08F220/22
    • C08F290/062C08F216/1416G03G5/14726G03G5/1476G03G5/14786G03G5/14791
    • A photoconductor coating which is a cross-linked product of a copolymer is disclosed. The copolymer is a polymerization reaction product of reactant monomers comprising three types of monomers. The reactant monomers include from 0.1 to 20 mole percent of one or more first monomers on the reactant monomers, from 0.1 to 20 mole percent of one or more second monomers on the reactant monomers, and from 0.1 to 80 mole percent of one or more third monomers on the reactant monomers. The first monomers has the formula ##STR1## wherein R.sup.1, R.sup.2 each is selected from the group consisting of hydrogen, halogen, alkyl, phenyl, phenylalkyl, and alkylphenyl in which alkyl has 1 to 4 carbon atoms and is linear, R.sup.3 is selected from the group consisting of hydrogen, alkyl, phenyl, phenylalkyl, alkylphenyl, biphenyl, --COOR.sup.5, and --CONHR.sup.6 ; R.sup.5 and R.sup.6 each is selected from the group consisting of hydrogen, fluorine, alkyl, fluoroalkyl, chloroalkyl, alkyl, phenyl, phenylalkyl, and alkylphenyl in which alkyl has 1 to 4 carbon atoms and is linear. The second monomers has the formula ##STR2## wherein R.sup.7, R.sup.8 each is selected from the group consisting of hydrogen, alkyl, phenyl, phenylalkyl, and alkylphenyl in which alkyl has 1 to 4 carbon atoms and is linear, X is a bivalent linking group, and Y is selected from the group consisting of --OH, --NCO, --COR (where R is --H, --OH, alkyl, aryl), --NHR (where R is --H, --OH, alkyl, aryl), anhydride group, and epoxy group. The third monomers are perfluoropolyethers having the formula Z.sup.1 Q.sup.1 (CF.sub.2 CF.sub.2 O).sub.m (CF.sub.2 O).sub.n Q.sup.2 Z.sup.2 wherein m is from about 1 to about 10,000, n is from 1 to 10,000, Q.sup.1, Q.sup.2 each is a polyvalent linking group, Z.sup.1 and Z.sup.2 each has the formula ##STR3## and R.sup.9, R.sup.10 each is selected from the group consisting of hydrogen, alkyl, phenyl, phenylalkyl, and alkylphenyl in which alkyl has 1 to 4 carbon atoms and is linear. The copolymer has a molecular weight of from 1,000 to 500,000.
    • 123. 发明授权
    • Method of forming color images by electrophotographic process employing
a peelable transfer layer having a stratified structure
    • 通过使用具有分层结构的可剥离转印层的电子照相方法形成彩色图像的方法
    • US5725981A
    • 1998-03-10
    • US692238
    • 1996-08-07
    • Eiichi Kato
    • Eiichi Kato
    • G03G5/147G03G13/01G03G13/14
    • G03G5/14786G03G13/01G03G5/147
    • A method of forming a color image by an electrophotographic process comprising forming a peelable transfer layer on a surface of an electrophotographic light-sensitive element, forming a toner image by an electrophotographic process on the transfer layer, heat-transferring the toner image together with the transfer layer onto a receiving material, wherein the transfer layer has a stratified structure composed of a first transfer layer (T.sub.1) which is contact with the surface of electrophotographic light-sensitive element and is formed by an electrodeposition coating method using thermoplastic resin grains (AR) each containing a resin (AH) having a glass transition point of from 20.degree. C. to 140.degree. C. or a softening point of from 30.degree. C. to 180.degree. C. and a resin (AL.sub.1) having a glass transition point of from -40.degree. C. to 40.degree. C. or a softening point of from 0.degree. C. to 60.degree. C. wherein the glass transition point or softening point of resin (AH) is at least 2.degree. C. higher than that of resin (AL.sub.1) and a second transfer layer (T.sub.2) provided thereon containing a resin (AL.sub.2) having a glass transition point of from -40.degree. C. to 35.degree. C. or a softening point of from 0.degree. C. to 45.degree. C. The method can provide color images of high accuracy and high quality without color shear in a simple and stable manner. Good color duplicates can be obtained at a low temperature of transfer or a high speed of transfer irrespective of the kind of receiving material. Color duplicates obtained are excellent in retouching property, sealing property and filing property.
    • 通过电子照相方法形成彩色图像的方法包括在电子照相感光元件的表面上形成可剥离的转印层,通过电子照相方法在转印层上形成调色剂图像,将调色剂图像与 转印层到接收材料上,其中转印层具有由与电子照相感光元件的表面接触的第一转印层(T1)和使用热塑性树脂颗粒(AR)的电沉积涂布法形成的分层结构 ),其含有玻璃化转变点为20〜140℃,软化点为30〜180℃的树脂(AH)和具有玻璃化转变点的树脂(AL1) 为-40℃至40℃或软化点为0℃至60℃,其中树脂(AH)的玻璃化转变点或软化点比该树脂(AH)的玻璃化转变点或软化点高至少2℃ 的树脂(AL1)和第二转印层(T2),其上设置有玻璃化转变点为-40℃至35℃或软化点为0℃至45℃的树脂(AL2) 该方法可以以简单和稳定的方式提供高精度和高质量的彩色图像,无色差。 无论接收材料的种类如何,都可以在低转印温度或高转印速度下获得良好的颜色复制品。 获得的颜色复制品在润饰性,密封性和归档性方面是优异的。