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1.发明授权Method for the preparation of stable aqueous dispersions of polymer beads and the use of these dispersions in photographic elements 失效用于制备聚合物珠的稳定水分散体的方法以及这些分散体在照相元件中的应用
公开(公告)号：US4614708A
公开(公告)日：1986-09-30
申请号：US580272
申请日：1984-02-16
IPC分类号： G03C1/32 , C08F2/00 , C08F2/16 , C08F2/18 , C08F257/02 , C08F267/02 , C08F291/00 , G03C1/825 , G03C1/89 , G03C1/95 , G03C1/84 , G03C1/02
CPC分类号： C08F257/02 , C08F267/02 , G03C1/825 , G03C1/89 , G03C1/95 , Y10S430/132 , Y10S430/151 , Y10S430/162
摘要： Method for the preparation of stable aqueous dispersions of finely divided solid spherical polymer beads having an average particle size between about 0.5 and about 5 .mu.m and having a glass transition temperature of at least 40.degree. C. by dissolving in an aqueous solvent mixture at least one .alpha.,.beta.-ethylenically unsaturated monomer capable of forming a polymer that is soluble in the monomer(s) present in said aqueous solvent mixture but which is insoluble in said aqueous solvent mixture, a free radical-forming polymerization initiator, and a graft-polymerizable polymer containing hydrophilic groups, heating the solution to a temperature from 50.degree. C. to the reflux temperature thereof with stirring so as to form said polymer beads. The polymer beads can be used in an antifriction surface layer, an antihalation surface layer, an antistatic surface layer, or in a protective surface layer of a photographic element or in a top layer of a drafting film containing a photosensitive layer.
摘要翻译： 制备平均粒径为约0.5至约5μm的玻璃化转变温度为至少40℃的细分固体球形聚合物珠粒的稳定水分散体的方法，通过将至少 能够形成可溶于所述水性溶剂混合物中存在但不溶于所述水性溶剂混合物中的单体的聚合物的一种α，β-烯属不饱和单体，自由基形成聚合引发剂和接枝 - 含有亲水基团的可聚合聚合物，在搅拌下将溶液加热至50℃至其回流温度，以形成所述聚合物珠粒。 聚合物珠可以用于减摩表面层，防光晕表面层，抗静电表面层，或照相元件的保护表面层或含有感光层的牵伸膜的顶层中。
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2.发明授权
公开(公告)号：US4132552A
公开(公告)日：1979-01-02
申请号：US738487
申请日：1976-11-03
CPC分类号： G03C1/7954 , G03C1/93 , G11B5/633 , G11B5/7305 , Y10S430/135 , Y10T428/31797 , Y10T428/31801
摘要： A process is described for the manufacture of a dimensionally stable polyester film support carrying a primer coating for improving the adhesion thereto of subsequently applied coatings, which process comprises applying to an unstretched or only monoaxially stretched polyester film support a layer of a coating composition from an aqueous dispersion, drying said layer, stretching it biaxially or in a direction perpendicular to the said first stretching operation together with the polyester film support and heat-setting the polyester film, wherein said coating composition, before drying and heat-setting, comprises a mixture of:(A) 52 to 79% by weight of a copolymeric binder comprising 60 to 95% by weight of methyl methacrylate, 3 to 20% by weight of a divinyl or diallyl monomer, 0 to 30% by weight of a plasticizing vinyl monomer, and 0 to 5% by weight of an ethylenically unsaturated carboxylic acid,(B) 0.5 to 3% by weight of a water-insoluble wax-like material and/or of a water-insoluble polymer characterized by the presence of repeating units corresponding to the formula : ##STR1## wherein each of X, X.sup.1, X.sup.2, and X.sup.3 represents hydrogen or fluorine, or each of X, X.sup.1, and X.sup.2 represents hydrogen and X.sup.3 represents a methyl group, or X represents chlorine and each of X.sup.1, X.sup.2, and X.sup.3 represents fluorine,(C) 20 to 40% by weight of an external plasticizer, said external plasticizer being wholly or almost entirely eliminated from the coating composition during the heat-setting, and(D) 0 to 5% by weight of a hydrophilic polymer.
摘要翻译： 描述了一种用于制造尺寸稳定的聚酯薄膜载体的方法，其承载底漆涂层以改善随后涂覆的涂层的粘附性，该方法包括施加到未拉伸或仅单轴拉伸的聚酯薄膜上，从而将涂层组合物从 水分散体，干燥所述层，双轴拉伸或垂直于所述第一拉伸操作的方向与聚酯薄膜载体一起拉伸并热固定聚酯薄膜，其中所述涂料组合物在干燥和热定型之前包含混合物 的：
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公开(公告)号：US4990434A
公开(公告)日：1991-02-05
申请号：US412489
申请日：1989-09-26
摘要： The present invention provides a photographic element comprising a dimensionally stable hydrophobic transparent polyester film support, at least one light-sensitive silver halide emulsion layer, and at the side of said support opposite to that of said emulsion layer(s), a subbing layer essentially consisting of poly-N-vinyl pyrrolidone, and an antihalation layer comprising carbon black dispersed in a water-insoluble alkali-soluble copolymer of 1 to 65% by weight of a C.sub.1 -C.sub.4 alkyl methacrylate, 10 to 79% by weight of a C.sub.1 -C.sub.8 alkyl acrylate, and 10 to 50% by weight of acrylic acid or methacrylic acid. The present invention also provides a process of manufacturing a dimensionally stable hydrophobic transparent polyester film support carrying a subbing layer and an alkali-soluble carbon black antihalation layer, said process comprising monoaxially stretching an extruded amorphous polyester film, coating it with an aqueous solution of poly-N-vinyl pyrrolidone to form said subbing layer, drying it, stretching it together with said film in a direction perpendicular to that of the first stretching, heat-setting, coating the film support with an aqueous dispersion of carbon black in said above-mentioned water-insoluble alkali-soluble copolymer to form said alkali-soluble antihalation layer.
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4.发明授权Method for the preparation of stable aqueous dispersions of polymer beads and the use of these dispersions in photographic elements 失效用于制备聚合物珠的稳定水分散体的方法以及这些分散体在照相元件中的用途
公开(公告)号：US4861818A
公开(公告)日：1989-08-29
申请号：US911465
申请日：1986-09-25
IPC分类号： G03C1/32 , C08F2/00 , C08F2/16 , C08F2/18 , C08F257/02 , C08F267/02 , C08F291/00 , G03C1/825 , G03C1/89 , G03C1/95
CPC分类号： C08F257/02 , C08F267/02 , G03C1/825 , G03C1/89 , G03C1/95 , Y10S430/132 , Y10S430/151 , Y10S430/162
摘要： Method for the preparation of stable aqueous dispersions of finely divided solid spherical polymer beads having an average particle size between about 0.5 and about 5 .mu.m and having a glass transition temperature of at least 40.degree. C. by dissolving in an aqueous solvent mixture at least one .alpha.,.beta.-ethylenically unsaturated monomer capable of forming a polymer that is soluble in the monomer(s) present in said aqueous solvent mixture but which is insoluble in said aqueous solvent mixture, a free radical-forming polymerization initiator, and a graft-polymerizable polymer containing hydrophilic groups, heating the solution to a temperature from 50.degree. C. to the reflux temperature thereof with stirring so as to form said polymer beads. The polymer beads can be used in an antifriction surface layer, an antihalation surface layer, an antistatic surface layer, or in a protective surface layer of a photographic element or in a top layer of a drafting film containing a photosensitive layer.
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5.发明授权Electrophotographic liquid developer comprising acrylic or methacrylic acid ester of hydrogenated abietyl alcohol polymer 失效包含氢化的聚乙烯醇聚合物的丙烯酸或甲基丙烯酸酯的电子照相液体显影剂
公开(公告)号：US4241159A
公开(公告)日：1980-12-23
申请号：US852977
申请日：1977-11-18
IPC分类号： C08F20/00 , C08F20/10 , C08F220/00 , C08F220/10 , G03G9/12 , G03G9/13 , G03G9/18
摘要： An electrostatic liquid developer for the development of electrostatic charge patterns comprises an electrically insulating carrier liquid having a dielectric constant of less than 3 and a volume resistivity in excess of 10.sup.9 Ohm.cm. In this electrically insulating carrier liquid are dispersed resin-precoated toner particles formed of a pigment or coloring agent precoated with a polymer of an acrylic or methacrylic acid ester of hydrogenated abietyl alcohol.
摘要翻译： 用于开发静电荷图案的静电液体显影剂包括介电常数小于3且体积电阻率超过109欧姆·厘米的电绝缘载液。 在这种电绝缘载体液体中，分散有树脂预涂的调色剂颗粒，其由预先涂覆有氢化绝育醇的丙烯酸或甲基丙烯酸酯的聚合物的颜料或着色剂形成。
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