Radiation-curable optical fiber coating composition
US6472450B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2000 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Jan 10, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2938
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided is a radiation-curable, glass optical fiber coating composition which when suitably cured exhibits resistance to attack from hydrocarbon gel cable filing material. The composition containsabout 10 to about 90% by weight of a first radiation-curable oligomer;from 0 to about 40% by weight of a reactive diluent;from 0 to about 40% by weight of a photoinitiator;from 0 to about 10% by weight of a pigment; andabout 10 to about 90% by weight of a second radiation-curable oligomer according to the following formula:R1-L1-C1-L2-R2  (1)where:R1 and R2, independently, each represent a radiation-curable functional group;L1 and L2, independently, each represent an an alkyleneoxy chain having from about 2 to about 40 carbon atoms, wherein L1 and L2 are linked to C1 through an oxygen atomC1 comprises a hydrocarbon having from about 5 to about 40 carbon atoms and containing at least one cyclic group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.