公开(公告)号：US5061601A

公开(公告)日：1991-10-29

申请号：US554232

申请日：1990-07-17

申请人： Paul R. West ,  James E. Mitchell ,  Gary R. Miller ,  Paul R. Josephson, Jr. ,  Raymond W. Ryan, Jr.

发明人： Paul R. West ,  James E. Mitchell ,  Gary R. Miller ,  Paul R. Josephson, Jr. ,  Raymond W. Ryan, Jr.

IPC分类号： C08L67/06 ,  G03F7/038

CPC分类号： G03F7/0384 ,  C08L67/06

摘要： Radiation-sensitive compositions which are especially useful in the production of negative-working lithographic printing plates comprise a photocrosslinkable polymer containing the photosensitive group ##STR1## as an integral part of the polymer backbone and, in an amount sufficient to improve the properties of the composition, a polymer of vinyl pyrrolidone. The polymer of vinyl pyrrolidone improves the properties of the radiation-sensitive composition in regard to such factors as shelf life, image contrast, and developability and thereby provides a superior lithographic printing plate.

摘要翻译： 特别可用于制备负性平版印刷版的辐射敏感组合物包含含有作为聚合物主链的组成部分的光敏基团“IMAGE”的光可交联聚合物，其用量足以改善组合物的性质 ，乙烯基吡咯烷酮的聚合物。 关于诸如保质期，图像对比度和显影性的因素，乙烯基吡咯烷酮的聚合物改善了辐射敏感组合物的性能，从而提供了优异的平版印刷版。

公开(公告)号：US5316892A

公开(公告)日：1994-05-31

申请号：US918869

申请日：1992-07-23

申请人： John E. Walls ,  Gary R. Miller ,  Raymond W. Ryan, Jr.

发明人： John E. Walls ,  Gary R. Miller ,  Raymond W. Ryan, Jr.

IPC分类号： G03F7/32 ,  G03F7/30 ,  G03F7/021

CPC分类号： G03F7/322

摘要： A negative-working lithographic printing plate having a radiation-sensitive layer comprising a diazo resin, an acid-substituted ternary acetal polymer and an unsaturated polyester is developed with an aqueous developing composition comprising an organic solvent, an anionic surface active agent, sodium oxalate, sodium nitrate or an alkali metal tetraborate an aliphatic monocarboxylic acid, an aliphatic dicarboxylic acid and sufficient alkaline buffering system to provide an alkaline pH. The method effectively avoids problems of blinding and background sensitivity which are of critical concern in the printing art.

摘要翻译： 具有包含重氮树脂，酸取代的三元缩醛聚合物和不饱和聚酯的辐射敏感层的负性平版印刷版用含水显影组合物显影，所述水性显影组合物包含有机溶剂，阴离子表面活性剂，草酸钠， 硝酸钠或碱金属四硼酸盐，脂肪族单羧酸，脂族二羧酸和足够的碱性缓冲体系，以提供碱性pH。 该方法有效地避免了印刷艺术中令人关切的盲目和背景敏感问题。

公开(公告)号：US5279927A

公开(公告)日：1994-01-18

申请号：US918988

申请日：1992-07-23

申请人： John E. Walls ,  Gary R. Miller ,  Raymond W. Ryan, Jr.

发明人： John E. Walls ,  Gary R. Miller ,  Raymond W. Ryan, Jr.

IPC分类号： G03F7/32

CPC分类号： G03F7/322

摘要： Aqueous alkaline developing compositions useful in the development of negative-working lithographic printing plates are comprised of an organic solvent, an anionic surface active agent, sodium oxalate, sodium nitrate or an alkali metal tetraborate, an aliphatic monocarboxylic acid, an aliphatic dicarboxylic acid and sufficient alkaline buffering system to provide an alkaline pH. The developing composition is resistant to oxidation, highly effective in dissolution-type processing, and able to effectively desensitize the background areas of the printing plate.

摘要翻译： 用于开发负性平版印刷版的水性碱性显影组合物由有机溶剂，阴离子表面活性剂，草酸钠，硝酸钠或碱金属四硼酸盐，脂族一元羧酸，脂族二羧酸和足够的 碱性缓冲系统提供碱性pH。 显影组合物耐氧化，在溶解型处理中高效，并且能够有效地使印版的背景区域脱敏。

公开(公告)号：US4425424A

公开(公告)日：1984-01-10

申请号：US390488

申请日：1982-06-21

申请人： Henry W. Altland ,  Raymond W. Ryan, Jr. ,  Phillip P. Senise, Jr. ,  Michael J. Lindstrom

发明人： Henry W. Altland ,  Raymond W. Ryan, Jr. ,  Phillip P. Senise, Jr. ,  Michael J. Lindstrom

IPC分类号： C07D209/48 ,  C07D221/14 ,  G03C1/73 ,  G03C1/52 ,  G03C1/68

CPC分类号： C07D209/48 ,  C07D221/14 ,  G03C1/732 ,  Y10S430/121

摘要： There is disclosed a radiation-sensitive composition comprising a leuco dye and a sulfonyloxy-N photooxidant that converts the leuco dye to a dye having a color different from that of its leuco form, when exposed to activating radiation. Improved print-out densities are obtained using this composition in image-forming methods.

摘要翻译： 公开了一种辐射敏感性组合物，其包含无色染料和磺酰氧基-N光氧化剂，当暴露于活化辐射时，将无色染料转化为具有与其隐色形式不同的颜色的染料。 在成像方法中使用该组合物获得了改进的印刷密度。

公开(公告)号：US5061600A

公开(公告)日：1991-10-29

申请号：US554230

申请日：1990-07-17

申请人： Paul R. West ,  James E. Mitchell ,  Gary R. Miller ,  Paul R. Josephson, Jr. ,  Raymond W. Ryan, Jr.

发明人： Paul R. West ,  James E. Mitchell ,  Gary R. Miller ,  Paul R. Josephson, Jr. ,  Raymond W. Ryan, Jr.

IPC分类号： G03F7/038

CPC分类号： G03F7/0384

摘要： Radiation-sensitive compositions which are especially useful in the production of negative-working lithographic printing plates comprise a photocrosslinkable polymer containing the photosensitive group ##STR1## as an integral part of the polymer backbone and, in an amount sufficient to improve the properties of the composition, both a polymer of vinyl pyrrolidone and an unsaturated polyester such as a polyester derived from fumaric acid and a 4,4'-isopropylidine-diphenol. The combination of a polymer of vinyl pyrrolidone and an unsaturated polyester improves the properties of the radiation-sensitive composition in regard to such factors as shelf life, image contrast, developability and ink receptivity and thereby provides a superior lithographic printing plate.

摘要翻译： 特别可用于制备负性平版印刷版的辐射敏感组合物包含含有作为聚合物主链的组成部分的光敏基团“IMAGE”的光可交联聚合物，其用量足以改善组合物的性质 ，乙烯基吡咯烷酮和不饱和聚酯的聚合物，例如衍生自富马酸的聚酯和4,4'-异丙基 - 二酚。 关于乙烯基吡咯烷酮和不饱和聚酯的聚合物的组合改善了辐射敏感组合物在保质期，图像对比度，显影性和油墨接收性等因素方面的性能，从而提供了优越的平版印刷版。

公开(公告)号：US5053315A

公开(公告)日：1991-10-01

申请号：US554231

申请日：1990-07-17

申请人： Paul R. West ,  James E. Mitchell ,  Gary R. Miller ,  Paul R. Josephson, Jr. ,  Raymond W. Ryan, Jr.

发明人： Paul R. West ,  James E. Mitchell ,  Gary R. Miller ,  Paul R. Josephson, Jr. ,  Raymond W. Ryan, Jr.

IPC分类号： G03F7/038

CPC分类号： G03F7/038

摘要： Radiation-sensitive compositions which are especially useful in the production of negative-working lithographic printing plates comprise a photocrosslinkable polymer containing the photosensitive group ##STR1## as an integral part of the polymer backbone and, in an amount sufficient to improve the properties of the composition, an unsaturated polyester such as a polyester derived from fumaric acid and a 4,4'-isopropylidenediphenol. The unsaturated polyester additive improves the properties of the radiation-sensitive composition in regard to processing characteristics and ink receptivity and thereby provides a superior lithographic printing plate.

摘要翻译： 特别可用于制备负性平版印刷版的辐射敏感组合物包含含有作为聚合物主链的组成部分的光敏基团“IMAGE”的光可交联聚合物，其用量足以改善组合物的性质 ，不饱和聚酯如来自富马酸的聚酯和4,4'-异丙基二苯酚。 不饱和聚酯添加剂改善了辐射敏感组合物在加工特性和油墨接受性方面的性能，从而提供了优越的平版印刷版。

公开(公告)号：US5045432A

公开(公告)日：1991-09-03

申请号：US554229

申请日：1990-07-17

申请人： Paul R. West ,  James E. Mitchell ,  Gary R. Miller ,  Paul R. Josephson, Jr. ,  Raymond W. Ryan, Jr.

发明人： Paul R. West ,  James E. Mitchell ,  Gary R. Miller ,  Paul R. Josephson, Jr. ,  Raymond W. Ryan, Jr.

IPC分类号： G03F7/038

CPC分类号： G03F7/038

摘要： Radiation-sensitive compositions which are especially useful in the production of negative-working lithographic printing plates comprise a photocrosslinkable polymer containing the photosensitive group ##STR1## as an integral part of the polymer backbone and, in an amount sufficient to improve the properties of the composition, both a poly(N-acyl-alkyleneimine) and an unsaturated polyester such as a polyester derived from fumaric acid and a 4,4'-isopropylidenediphenol. The combination of a poly(N-acylalkyleneimine) and an unsaturated polyester improves the properties of the radiation-sensitive composition in regard to such factors as shelf life, image contrast, developability, ink receptivity and reduction in mottle and thereby provides a superior lithographic printing plate.

摘要翻译： 特别可用于制备负性平版印刷版的辐射敏感组合物包含含有作为聚合物主链的组成部分的光敏基团“IMAGE”的光可交联聚合物，其用量足以改善组合物的性质 ，聚（N-酰基 - 亚烷基亚胺）和不饱和聚酯如衍生自富马酸的聚酯和4,4'-异丙基二苯酚。 关于聚（N-酰基亚烷基亚胺）和不饱和聚酯的组合改善了辐射敏感组合物在保质期，图像对比度，显影性，油墨接受性和斑点的还原等因素方面的性能，从而提供优异的平版印刷 盘子。