Waterbone photoresists having associate thickeners
US5364737A · kind A · utility
7Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1994 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Feb 18, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/111
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A waterborne photoimageable composition or photoresist comprises a latex binder polymer having sufficient carboxylic acid functionality to render it developable in alkaline aqueous solution, a photopolymerizeable monomer fraction, a photoinitiator and a polyether polyurethane associate thickener which supports an emulsion of the monomer fraction in aqueous medium. The carboxylic acid functionality of the latex binder polymer is neutralized at from 0 to about 20%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.