High temperature performance polymers for stereolithography
US6054250A · kind A · utility
36Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1998 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Jan 26, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/027
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to polymer precursors used in sterolithography. Specifically, the invention provides a novel resin having a glass transition temperature (Tg) that is substantially higher than any existing resins. The polymer precursors comprise an admixture of at least one vinyl ether, functionalized compound and at least one epoxy functionalized compound, at least one acrylate functionalized compound, and a photoinitiator, wherein the polymer precursor composition cures by a dual cure mechanism utilizing a free radical pathway as well as a cationic pathway thus yielding improved green strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.