发明名称 |
Composition for photo imaging |
摘要 |
An improved photoimagable cationically polymerizable epoxy based coating material is provided, that is suitable for use on a variety of substrates. The material includes an epoxy resin system consisting essentially of between about 10% and about 80% by weight of a polyol resin which preferably is a condensation product of epichlorohydrin and bisphenol A having a molecular weight of between about 40,000 and 130,000; and between about 35% and 72% by weight of an epoxidized glycidyl ether of a brominated bisphenol A having a softening point of between about 60 DEG C. and about 110 DEG C. and a molecular weight of between about 600 and 2,500. A third resin, either an epoxy cresol novolak or a polyepoxy resin, is also added to the resin system. To this resin system is added about 0.1 to about 15 parts by weight per 100 parts of resin of a cationic photoinitiator capable of initiating polymerization of said epoxidized resin system upon exposure to actinic radiation; the system being further characterized by having an absorbance of light in the 330 to 700 nm region of less than 0.1 for a 2.0 mil thick film. Optionally a photosensitizer such as perylene and its derivatives or anthracene and its derivatives may be added.
|
申请公布号 |
US5264325(A) |
申请公布日期 |
1993.11.23 |
申请号 |
US19920918304 |
申请日期 |
1992.07.21 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ALLEN, ROBERT D.;DAY, RICHARD A.;GLATZEL, DONALD H.;HINSBERG, WILLIAM D.;MERTZ, JOHN R.;RUSSELL, DAVID J.;WALLRAFF, GREGORY M. |
分类号 |
G03F7/038;G03F7/20;H05K3/00;H05K3/28;(IPC1-7):D04H1/08 |
主分类号 |
G03F7/038 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|