All polymer process compatible optical polymer material
US6503421B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2000 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Mar 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/121
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A terploymer containing N-halogenated phenyl maleimide units or N-halogenated phenyl bismaleimide units, one or more second units selected from the group consisting of halogenated acrylates, halogenated styrenes, halogenated vinyl ethers, halogenated olefins, halogenated vinyl isocyanates, halogenated N-vinyl amides, halogenated allyls, halogenated propenyl ethers, halogenated methacrylates, halogenated maleates, halogenated itaconates, and halogenated crotonates and one or more third units comprising a monomer containing both a free radically polymerizable group and cationic ring opening polymerizable group, is prepared by radical co-polymerization. The resulting linear plastic polymer group contains a UV, or e-beam curable ring opening polymerizable functional groups. Such plastic polymer is then blended with cationic photoiniator and processed into optical waveguide structures using a hot embossing technique. The terpolymer is subsequently crosslinked by exposure to UV or E-beam radiation and thermal post-bake. Alternatively, in a direct contact photolithographic process, the terpolymer is mixed with cationic photoinitiator, and deposited or coated onto a substrate. Then optical…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.