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    • 26. 发明申请
    • Positive working thermal imaging assembly or structure, method for the manufacture thereof and products used as lithographic printing plates and the like
    • 正性工作热成像组件或结构,其制造方法和用作平版印刷版的产品等
    • US20040152018A1
    • 2004-08-05
    • US10726623
    • 2003-12-04
    • Andre Luiz AriasLuiz Nei AriasMarjorie AriasMario Italo Provenzano
    • G03F007/038G03F007/095G03F007/16G03F007/14
    • C09D161/30B41C1/1008B41C1/1016B41C2201/04B41C2210/02B41C2210/06B41C2210/14B41C2210/22B41C2210/24B41C2210/26B41C2210/262B41M5/368B41M5/465C09D161/06C09D161/24Y10S430/165
    • The invention relates to Positive working thermal imaging assembly comprising: A) a substrate; and B) a thermally sensitive imaging element of a composite layer structure comprising: (i) a first layer on the substrate of a polymeric material soluble in aqueous alkali solution, optionally containing compounds that absorb and convert light to heat and/or a coloured dye or pigment; said first layer being converted at its surface by treatment with solutions at elevated temperatures that contain an active compound or compounds capable of rendering said first polymeric material insoluble to aqueous alkali developer at the point of contact ; the first layer being oleophilic; (ii) optionally, a first intermediate layer between the substrate and the said first layer with a second polymeric material which is soluble or dispersible in aqueous solution optionally containing compounds that absorb and convert light or radiation to heat and/or a coloured dye or pigment coated from a solvent that does not substantially dissolve the first layer; and (iii) optionally, a third or top layer over the converted first layer and composed of a second polymeric material which is soluble or dispersible in aqueous solution optionally containing compounds that absorb and convert light or radiation to heat and/or a visible coloured dye or pigment; the first intermediate layer and the third layer being applied with a solvent that does not substantially dissolve the converted first layer. The assembly is useful as off-set lithographic printing plates, for color proofing films and photoresist. The invention also refers to the process for making such assembly and products formed therefrom.
    • 本发明涉及正工作热成像组件,其包括:A)衬底; 和B)复合层结构的热敏成像元件,包括:(i)基底上的可溶于碱水溶液的聚合材料的第一层,任选地含有吸收和转化光的化合物和/或着色染料 或颜料; 所述第一层在其表面上通过在高温下用溶液处理而被转化,所述溶液含有活性化合物或能够使所述第一聚合物材料在接触点处不溶于碱性显影剂的化合物; 第一层是亲油的; (ii)任选地,在所述基材和所述第一层之间的第一中间层具有可溶于或分散于水溶液中的第二聚合物材料,所述第二聚合物材料任选地含有吸收并将光或辐射转化成热和/或着色染料或颜料的化合物 由基本不溶解第一层的溶剂涂布; 和(iii)可选地,在转化的第一层上方的第三层或顶层,并且由可溶或可分散在水溶液中的第二聚合物材料组成,任选地含有吸收和转换光或辐射至热的化合物和/或可见的着色染料 或颜料; 第一中间层和第三层被施加有基本上不溶解转化的第一层的溶剂。 该组件可用作偏光平版印刷版,用于防色膜和光致抗蚀剂。 本发明还涉及用于制造这样的组装和由其形成的产品的方法。
    • 28. 发明授权
    • Methods for treating fiberboard with aminoplast copolymer blends
    • 用氨基苯酚共聚物共混处理纤维板的方法
    • US3856562A
    • 1974-12-24
    • US32944973
    • 1973-02-05
    • REICHHOLD CHEMICALS INC
    • WHITE JGUMPRECHT D
    • C09D161/30D21H19/26D21H1/40
    • D21H19/26C09D161/30Y10T428/31949
    • Stable, homogeneous thermosetting, liquid resin compositions useful for treating the surface of felted mineral fiber-board panels which are bonded with a hydrophilic binder to reduce sag and method of making the same. Compositions of this invention comprise a copolymer blend of (1) from about 25% to about 55% by weight, of a melamine-formaldehyde copolymer and (2) from about 75% to about 45% by weight of a urea-formaldehyde copolymer. These compositions may be stabilized through the addition of from about 0.05% to about 0.5% by weight of an ammonium hydroxidesodium hydroxide stabilizer solution. Resin compositions of this invention may be reduced with water and/or compounded with fillers and other materials or they may be used alone.
    • 稳定的,均匀的热固性液体树脂组合物,其用于处理与亲水性粘合剂结合以减少凹陷的毡状矿物纤维板板的表面及其制备方法。 本发明的组合物包含(1)约25重量%至约55重量%的三聚氰胺 - 甲醛共聚物和(2)约75重量%至约45重量%的脲 - 甲醛共聚物的共聚物共混物。 这些组合物可以通过加入约0.05%至约0.5%重量的氢氧化铵 - 氢氧化钠稳定剂溶液来稳定。 本发明的树脂组合物可以用水还原和/或与填料和其它材料混合,或者它们可以单独使用。