Stock material or miscellaneous articles – Composite – Of bituminous or tarry residue
Patent
1989-04-26
1990-12-25
Ullah, Akm
Stock material or miscellaneous articles
Composite
Of bituminous or tarry residue
428373, 525199, 264 15, G02B 5172, C08L 2712, B29D 1100, D02G 300
Patent
active
049797999
ABSTRACT:
An optical waveguide having a core/sheath structure whose sheath comprises a terpolymer based on vinylidene fluoride, tetrafluoroethylene and hexafluorpropylene, is suitable for transmission paths of ca. 10 to 100 m and can also be used at a temperature of above 100.degree. C. without significant reduction of the transmission path.
REFERENCES:
patent: 3993834 (1976-11-01), Chimura et al.
patent: 4575188 (1986-03-01), Ueba
patent: 4681400 (1987-07-01), Ueba et al.
patent: 4747662 (1988-05-01), Fitz
Fitz Herbert
Herbrechtsmeier Peter
Kuhls Jurgen
Tschacher Manfred
Wieners Gerhard
Hoechst Aktiengesellschaft
Ullah Akm
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