Patent · US Expired

Optical fibres based on polycarbonate fibres, and a process for the production thereof

US4919514A · kind A · utility

15Cited by

2References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Wolfgang Ebert · Krefeld, DE
Wilfried Haese · Rheydt, DE
Roland Vogelsgesang · Leverkusen, DE
Rolf Dhein · Krefeld, DE

Key dates

Filing date	Jan 5, 1989
Grant date	Apr 24, 1990
Priority date	—
Expiry date	Jan 5, 2009

Classification

Technology area (CPC G)Physics
CPC primaryG02B1/048
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for the production of optical fibers based on aromatic polycarbonates wherein the polycarbonate fibres are coated with a plastic, the improvement which comprises PA0 (a) to coat the fiber with an UV irradiation-polymerizable mixture which comprises PA1 (A) 25 to 75% by weight, based on the total weight of the polymerizable compounds, of a polyfunctional (meth)acrylic acid derivative of the formula ##STR1## (B) 75 to 25% by weight, based on the total weight of the polymerizable compounds, of a monofunctional (meth)acrylate of the formula ##STR2## (C) 0.1 to 10% by weight, based on the total weight of the polymerizable compounds, of a photoinitiator, and PA0 (b) to polymerize this mixture on the fibre by UV irradiation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.