发明授权
- 专利标题: Photosensitive resin composition
- 专利标题(中): 感光树脂组合物
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申请号: US09088505申请日: 1998-06-01
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公开(公告)号: US06245483B1公开(公告)日: 2001-06-12
- 发明人: Chihiro Oshimo , Tohru Wada , Masahiko Nakamori
- 申请人: Chihiro Oshimo , Tohru Wada , Masahiko Nakamori
- 优先权: JP9151231 19970609
- 主分类号: G03F7027
- IPC分类号: G03F7027
摘要:
A photosensitive resin composition for flexographic printing comprising dispersed particles of (1) a core phase mainly composed of a non-crosslinkable hydrophobic polymer (A) having a glass transition temperature at 5° C. or lower, and (2) a shell phase covering the core phase which is mainly composed of a hydrophilic polymer; and (3) a matrix phase mainly composed of a mixture of a hydrophobic polymer (B) which is immiscible with the hydrophobic polymer (A) and a non gaseous ethylenic unsaturated compound. The difference between refractive index of said hydrophobic polymer (A) of the core phase (1) and that of the mixture of said hydrophobic polymer (B) and said ethylenic unsaturated compound of the matrix phase (3) is 0.010 or less, thereby decreasing light scattering in the resin. The photosensitive resin composition can be developed with an aqueous developer and has wide light exposure latitude, improved printing reproducibility and improved aqueous ink resistance.