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公开(公告)号：US5480752A
公开(公告)日：1996-01-02
申请号：US309674
申请日：1994-09-21
摘要： An electrophotographic lithograph printing plate material having excellent anti-toner fogging property and dimensional stability has an intermediate layer formed between a front surface of a substrate and a photoconductive layer and including a mixture of a polymeric binder, a specific dispersing agent comprising a member selected from a polyisoprenesulfonic acid and carboxylic acid-modified polyisoprenesulfonic acids, and pigment particles and electroconductive whiskers uniformly dispersed in the binder by the aid of the specific dispersing agent.
摘要翻译： 具有优异的抗调色剂起雾性和尺寸稳定性的电子照相平版印刷版材料具有在基材的前表面和光导电层之间形成的中间层，并且包括聚合物粘合剂，特定的分散剂，其包含选自 聚异戊二烯磺酸和羧酸改性的聚异戊二烯磺酸，以及通过特定的分散剂均匀分散在粘合剂中的颜料颗粒和导电晶须。
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2.发明授权Electrophotographic lithograph printing plate material having a mixture of sensitizing dyes 失效具有敏感染料混合物的电子照相平版印刷材料
公开(公告)号：US5213930A
公开(公告)日：1993-05-25
申请号：US783439
申请日：1991-10-28
申请人： Masahiro Yamana , Koji Sato
发明人： Masahiro Yamana , Koji Sato
摘要： An electrophotographic lithograph printing plate material having an enhanced sensitivity to laser rays, an excellent heat resistance and a low dark decay comprises an electroconductive, water-resistant substrate and an electrophotographic layer comprising a photoconductive zinc oxide, a resinous binder and a sensitizing dye material which comprises at least one compound (A) of the formula (I) and at least one compound (B) of the formula (II): ##STR1## wherein each of A.sub.1 and A.sub.2 represents a C.sub.5-7 polymethine group non-substituted or substituted with at least one substituent, for example, --Cl, the substituted polymethine group may have a cyclic structure, for example, of: ##STR2## each of from B.sub.1 to B.sub.4 is a divalent non-substituted or substituted, benzene or naphthalene group, each of from X.sub.1 to X.sub.4 is a S, Se, or O atom or a --C(CH.sub.3).sub.2 -- group, each of from R.sub.1 to R.sub.4 is a C.sub.1-5 alkyl group, each of M.sub.1 and M.sub.5 is a metal atom, organic base or hydrogen atom, each of Y.sub.1 and Y.sub.2 is an anion, and m and n is zero or 1 but when n= 1, m= 1 and when n= 0, m= 0 and --R.sub.3 COO group adjacent to the (M.sub.1).sub.m group in the formula (II) is anionic, the weight ratio of the compound (A) to the compound (B) being 3:1 to 20:1.
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公开(公告)号：US5185227A
公开(公告)日：1993-02-09
申请号：US750371
申请日：1991-08-27
申请人： Masahiro Yamana , Koji Sato
发明人： Masahiro Yamana , Koji Sato
CPC分类号： G03G5/09
摘要： An electroghraphic lithograph printing plate material having an enhanced spectral sensitivity to semiconductor laser rays, comprises a electroconductive water-resistant support and electrophotographic layer formed on the support and comprising a photoconductive zinc oxide, a binder resin and a sensitizing dye material comprising (a) 30 to 99% by weight of a low adsorption sensitizing dye for which the zinc oxide exhibits a low adsorption rate of less than 90% and (b) 1 to 70% by weight of a high adsorption sensitizing dye for which the zinc oxide exhibits a high adsorption rate for 90% or more, the adsorption rate being measured by spectrophotometry.
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公开(公告)号：US4968554A
公开(公告)日：1990-11-06
申请号：US259682
申请日：1988-10-19
CPC分类号： D21F11/00 , G03C1/79 , G03C1/81 , Y10T428/24975 , Y10T428/3188 , Y10T428/31895 , Y10T428/31902
摘要： A support sheet for photographic paper having an enhanced resistance to curling, especially twist-curling, comprises a substrate paper sheet composed of a half stratum portion thereof at the face side of a surface on which a photographic emulsion layer will be formed and the other half stratum portion thereof at the back side of the opposite surface, and two polyolefin resin coating layers on the two surfaces of the substrate paper sheet, the substrate paper sheet having a resiliency satisfying the relationships (I) and (II):1.5.ltoreq.E.sub.fl /E.sub.bt .ltoreq.2.25 (I)=and ##EQU1## wherein E.sub.fl =a modulus of elasticity of the face side half stratum portion in the longitudinal direction of the substrate, E.sub.bt =a modulus of elasticity of the back side half stratum portion in the transverse direction of the substrate, E.sub.ft =a modulus of elasticity of the face side half stratum portion in the transverse direction of the substrate, and E.sub.bl =a modulus of elasticity of the back side half stratum portion in the longitudinal direction of the substrate.
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公开(公告)号：US4777114A
公开(公告)日：1988-10-11
申请号：US98693
申请日：1987-09-18
申请人： Kunihiro Ichimura , Masataka Ito , Masahiro Yamana , Hiroshi Ito
发明人： Kunihiro Ichimura , Masataka Ito , Masahiro Yamana , Hiroshi Ito
CPC分类号： G03F7/0388 , C08F8/44
摘要： A photosensitive resin emulsion composition comprising an aqueous emulsion of a film-forming resin and a protective colloid for said emulsion, wherein the protective colloid comprises at least one photosensitive saponified polyvinyl acetate derivative which is at least partially grafted onto the film-forming resin, and the photosensitive saponified polyvinyl acetate derivative comprises a backbone formed of saponified polyvinyl acetate and at least one photosensitive unit and at least one hydrophobic unit bonded to the backbone.
摘要翻译： 一种感光树脂乳液组合物，其包含成膜树脂的水性乳液和所述乳液的保护胶体，其中所述保护胶体包含至少部分接枝到成膜树脂上的至少一种光敏皂化聚乙酸乙烯酯衍生物，以及 光敏皂化的聚乙酸乙烯酯衍生物包含由皂化的聚乙酸乙烯酯和至少一个光敏单元形成的主链和至少一个与主链结合的疏水单元。
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