发明授权
US3702765A Alkali-soluble light sensitive polymers and compositions and processes for using such polymers
失效
ALKALI可溶性光敏聚合物及其组合物和使用这种聚合物的方法
- 专利标题： Alkali-soluble light sensitive polymers and compositions and processes for using such polymers
- 专利标题（中）： ALKALI可溶性光敏聚合物及其组合物和使用这种聚合物的方法
-
申请号： US3702765D申请日： 1970-10-13
-
公开(公告)号： US3702765A公开(公告)日： 1972-11-14
- 发明人: LAAKSO THOMAS M
- 申请人： EASTMAN KODAK CO
- 专利权人： Eastman Kodak Co
- 当前专利权人： Eastman Kodak Co
- 优先权： US8049770 1970-10-13
- 主分类号： C08F8/00
- IPC分类号： C08F8/00 ; G03F7/038 ; G03C1/68 ; G03C1/70
摘要：
NOVEL ALKALI-SOLUBLE LIGHT SENSITIVE POLYMERS ARE PREPARED BY A PROCESS INVOLVING THE CONTROLLED SAPONIFICATION OF A LIGHT SENSITIVE POLYESTER WHICH HAS BEEN PREPARED BY CONDENSATION OF A POLYMER CONTAINING GROUPS, SUCH AS HYDROXYL OR AMINO GROUPS, CONDENSIBLE WITH A LIGHT SENSITIVE DICARBOXYLIC ACID REACTANT WHEREIN ONE OF THE CARBOXYL GROUPS HAS BEEN BLOCKED BY CONVERSION TO THE ESTER, E.G., WITH THE HALF ESTER-HALF ACID CHLORIDE OF THE LIGHT SENSITIVE DICARBOXYLIC ACID. THESE ALKALI-SOLUBLE POLYMERS ARE USEFUL IN PHOTOSENSITIVE COMPOSITIONS AND ELEMENTS TO PREPARE PHOTOMECHANICAL IMAGES SUCH AS LITHOGRAPHIC PRINTING PLATES, RESISTS, AND THE LIKE.