Curable solid adducts of polyene-polythiol compositions with urea
US3993549A · kind A · utility
14Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1974 |
| Grant date | Nov 23, 1976 |
| Priority date | — |
| Expiry date | Jul 12, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31692
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a solid curable composition formed by adding finely divided urea in amounts ranging from 10 to 70 weight percent of the composition to liquid polyene/polythiol curable systems wherein the combined polyene and polythiol contain at least 20 percent by weight of oxyethylene units. The thus formed solid compositions are readily cured by radiation, e.g., high energy ionizing radiation or U. V. radiation in the presence of a photocuring rate accelerator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.