Photosensitive materials containing ionic dye compound as initiators
US4977511A · kind A · utility
27Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1988 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Apr 13, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/128
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for making three dimensional models is disclosed which is characterized in that a photohardenable composition is used which comprises a free radical addition polymerizable or crosslinkable compound and an ionic dye-counter ion compound, said compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.