Polymerization method comprising sequential irradiation
US6866899B2 · kind B2 · utility
12Cited by
17References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Sep 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2861
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A two-step method of polymerizing a composition containing a free radical photoinitiator includes the sequential steps of exposing the composition to a first radiation source having a maximum spectral output occurring at a wavelength of greater than 300 nm and, thereafter, exposing the composition to a second radiation source having a maximum spectral output occurring at a wavelength of less than 300 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.