High temperature coating composition for glass optical fibers, a method of making a coating composition and a coated optical glass fiber
US5891930A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1996 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Aug 9, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D4/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a radiation-curable optical glass fiber coating composition adapted to provide the combination of properties of: PA1 (i) enhanced resistance to thermal degradation when suitably cured; and PA1 (ii) a viscosity sufficient to provide a surface substantially free-of pitting. The composition is formulated from components including: PA1 (A) at least one epoxy silicone monomer or oligomer which is crosslinkable via actinic radiation, or mixture thereof; PA1 (B) at least one thermoplastic resin which is substantially unreactive to actinic radiation and which is soluble or dispersible in component (A), said thermoplastic resin being present in an amount to provide said composition with a viscosity suitable for application to an optical glass fiber; and PA1 (C) a catalytically effective amount of a photoinitiator for catalyzing the crosslinking reaction of component (A) and which is soluble or dispersible in component (A) or a mixture of said component (A) and said thermoplastic resin. Also provided is a method of making the radiation-curable coating composition and a coated optical glass fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.