摘要:
A developer for electrophotography is disclosed, which comprises toner particles containing therein at least an olefin resin having a melt index of 25.about.700 g/10 min, which toner particles may comprise a colorant which is prepared by a flushing method by using a pigment component and an olefin resin having a melt index of 25.about.700 g/10 min, when necessary, with addition thereto a humic acid component selected from the group consisting of humic acid, a salt of humic acid, and a humic acid derivative.
摘要:
The present invention relates to a liquid developer for electrophotography having a solid content of not less than 10% by weight and the diffusion speed (as defined in the specification) of not lower than 1 mm/min., which comprises a toner containing a coloring agent covered with a resin and an aliphatic hydrocarbon dispersing medium dispersing said toner therein, wherein said coloring agent comprises a resinous composition containing an ethylene-vinylacetate copolymer as the essential component, which disperses therein a pigment coated with at least one of humic acid, humate and humic acid derivatives, and said toner comprises said coloring agent covered with a resinous composition containing a polymer prepared from a composition containing Monomer I of the following general formula, ##STR1## (wherein R represents hydrogen or methyl group and A represents --COOC.sub.n H.sub.2n+1 or --OCOC.sub.n H.sub.2n+1, n being an integer of 6 to 20) and Monomer II having an allyl group as the essential components.
摘要翻译:本发明涉及一种电子照相用液体显影剂,其固体含量不小于10重量%,扩散速度(如说明书中所定义)不低于1mm / min,其包含含有着色剂 其中所述着色剂包含含有乙烯 - 乙酸乙烯酯共聚物作为必需组分的树脂组合物,其中分散有涂覆有至少一种腐殖酸,腐殖酸的颜料 和腐殖酸衍生物,并且所述调色剂包含所述着色剂,该树脂组合物包含由含有下列通式的单体I的组合物制备的聚合物,其中R表示氢或甲基,A表示-COOC n H 2n + 1或-OCOCnH2n + 1,n为6〜20的整数)和具有烯丙基作为必要成分的单体II。
摘要:
A liquid developer for use in electrophotography is disclosed, which comprises (i) a toner comprising as the main toner components a colorant, a resin, and a polyolefin resin having an acid value of from 5 to 50 and a melt viscosity at 200.degree. C. of from 100 to 15,000 cps, and (ii) a carrier liquid in which the toner is dispersed. The polyolefin resin and the colorant in the liquid developer may constitute an integral flushing colorant which is prepared by subjecting the resin and the colorant to flushing processing.
摘要:
This invention relates to a non-aqueous type resin dispersion obtained by polymerizing a polymerizable composition containing at least monomer A represented by the general formula (I), ##STR1## (wherein, R.sup.1 represents --H or --CH.sub.3, X represents --COOC.sub.n H.sub.2n+1 or --OCOC.sub.n H.sub.2n+1, and n represents an integer of 6-20), monomer B represented by the general formula (II), ##STR2## (wherein, R.sup.2 and R.sup.3 represent --H or --CH.sub.3 and m represents an integer of 1-20), and monomer C having a carboxyl group or a glycidyl group in the presence of a polymerization initiator in an aliphatic hydrocarbon solvent.
摘要:
A liquid developer for use in electrophotography which is prepared by making a carrier liquid comprising a non-aqueous solvent having a highly insulating property and a low dielectric constant contain a coloring agent and a resin dispersed therein, characterized in that said resin contains the following components (A) and (B):(A) a polymer comprising at least one kind of resin having an acetone tolerance value of 100-5000 and at least one kind of monomer capable of dissolving said resin, and(B) a non-aqueous type thermoplastic resin obtained by esterifying a copolymer obtained from a monomer having the general formula I ##STR1## [wherein R is --H or --CH.sub.3 and X is --COOC.sub.n H.sub.2n+1 or --OC.sub.n H.sub.2n+1 (6.ltoreq.n.ltoreq.20)], and any one of a monomer having a glycidyl group, an unsaturated carboxylic acid and its anhydride, with said unsaturated carboxylic acid or its anhydride when said copolymer has the glycidyl group as the constitution unit and with the monomer having the glycidyl group when the copolymer has the unsaturated carboxylic acid or its anhydride as the constitution unit; and further graft-polymerizing the unsaturated portion of the resulting esterification product with at least one member of monomers having the general formula II ##STR2## [wherein R is --H or --CH.sub.3 and Y is --COOC.sub.n' H.sub.2n'+1 (1.ltoreq.n'.ltoreq.4), --OCOC.sub.m H.sub.2m+1 (1.ltoreq.m.ltoreq.6), ##STR3## and the general formula III ##STR4## [wherein R is --H or --CH.sub.3, and Z is --COOCH.sub.2 CH--N (C.sub.n" H.sub.2n"+1).sub.2 (1.ltoreq.n".ltoreq.5), --COOH, --COOC.sub.2 H.sub.4 OH or ##STR5##
摘要翻译:通过制备包含具有高绝缘性和低介电常数的非水溶剂的载体液体制备的用于电子照相术的液体显影剂含有分散在其中的着色剂和树脂,其特征在于所述树脂含有以下成分 (A)和(B):(A)包含丙酮耐量值为100-5000的至少一种树脂和能够溶解所述树脂的至少一种单体的聚合物,(B)非水性 通过酯化由具有通式I的单体获得的共聚物获得的热塑性树脂[其中R是-H或-CH 3,X是-COOCnH 2 n + 1或-OC n H 2n + 1(6≤n= 20)]和具有缩水甘油基,不饱和羧酸及其酸酐的单体中的任一种与所述不饱和羧酸或其酸酐的共聚物,当所述共聚物具有缩水甘油基作为构成单元时,并且具有缩水甘油基的单体 当共聚物 具有不饱和羧酸或其酸酐作为构成单元; 并进一步将所得酯化产物的不饱和部分与至少一种具有通式II的单体接枝聚合[其中R为-H或-CH 3且Y为-COOCn'H 2n + 1(1 < / = n' = 4),-OCOCmH2m + 1(1 = 6),和通式III [其中R是-H或-CH 3,Z是 -COOCH 2 CH-N(Cn''H2n“+ 1)2(1 = n”5),-COOH,-COOC 2 H 4 OH或
摘要:
It is an object of the present invention to provide a recording material which contains at least a colorant and a resin wherein the colorant contains silver, and a toner which contains at least a colorant and a resin wherein the colorant is an alloy containing silver, zinc and aluminum.
摘要:
A liquid developer comprises an aliphatic hydrocarbon carrier liquid and a toner dispersed in the carrier liquid, which toner comprises a coloring agent and a resin component, wherein a solid toner component which is obtained by evaporating the liquid developer to dryness has a softening point of 60.degree. C. to 90.degree. C. and flow-initiating point of 110.degree. C. to 160.degree. C.
摘要:
A negatively chargeable toner for developing latent electrostatic images comprising a coloring agent, a resin component which comprises a homopolymer of a first monomer having formula (I) or a copolymer of the aforementioned first monomer and a second monomer: ##STR1## wherein R.sup.1 represents --H or --CH.sub.3 ; R.sup.2 and R.sup.3 each represent --CN, --COOH or --NO.sub.2 ; R.sup.4 represents --F, --Cl or --Br; and n is an integer of 1 to 10.
摘要:
A liquid developer for electrophotography is disclosed, which comprises a highly electrically insulating carrier liquid with a low dielectric constant and a colorant comprising a pigment component treated with a humic acid component selected from the group consisting of humic acid, a humic acid salt and a humic acid derivative, and then coated with a resin component, which colorant is dispersed in the highly electrically insulating carrier liquid.
摘要:
A liquid developer for use in electrophotography, which is superior in storage stability and transferability, said developer comprising a resin A and a coloring agent dispersed in a carrier liquid having a high electric resistivity and a low dielectric constant, said coloring agent having a high electric resistivity and consisting essentially of fine particles of pigment coated with a resin B which is different from said resin A and is substantially insoluble in said carrier liquid.