Patent · US Expired

Cycloolefin copolymers having low melt viscosity and low optical attenuation

US5637400A · kind A · utility

52Cited by

3References

19Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Michael-Joachim Brekner · Frankfurt am Main, DE
Hellmuth Deckers · Ingelheim am Rhein, DE
Frank Osan · Kelkheim, DE

Key dates

Filing date	Aug 10, 1995
Grant date	Jun 10, 1997
Priority date	—
Expiry date	Aug 10, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31913
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Thermoplastic cycloolefin copolymers (COCs) having low melt viscosity and low optical attenuation, a process for their preparation, and their use as optical waveguides (optical fibers).

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