Process for producing flexible optical waveguide
US7120345B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2005 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Jul 11, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/25
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a process for producing a flexible optical waveguide which comprises the steps of: immersing a substrate having an optical waveguide formed thereon in water to thereby reduce adhesion between the optical waveguide and the substrate and then peeling the optical waveguide from the substrate; temporarily bonding the peeled optical waveguide to a surface of a pressure-sensitive adhesive layer containing a foaming agent; cutting the temporarily bonded optical waveguide into a given length; allowing the foaming-agent-containing pressure-sensitive adhesive layer after the cutting step to foam by heating, thereby reducing adhesion between the foaming-agent-containing pressure-sensitive adhesive layer and the optical waveguide; and peeling the optical waveguide cut into the given length from the foamed adhesive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.