Low gloss finishes by gradient intensity cure
US4169167A · kind A · utility
36Cited by
13References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1978 |
| Grant date | Sep 25, 1979 |
| Priority date | — |
| Expiry date | Jun 26, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M7/0081
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The gloss of energy-curable coating and ink compositions is reduced by exposing such compositions to actinic radiation in an oxygen-rich atmosphere at differential intensity levels. The intensities are selected to effect at a first intensity range substantially complete cure of the composition except for the surface, with final cure of the surface being effected subsequently at a different and higher intensity range. Gradient Intensity Cure can be employed with substantially any composition which is curable by free radical-induced addition polymerization using a photosensitizer-photoinitiator photocatalyst system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.