Cables which include non-halogenated plastic materials

Details Cables which include non-halogenated plastic materials Cables which include non-halogenated plastic materials

1990-12-14

1991-12-24

Gonzalez, Frank

Optical waveguides

Optical transmission cable

Loose tube type

174120R, 174120SR, G02B 644

Patent

active

050746405

ABSTRACT:
A cable which may be used in buildings in concealed areas such as in plenums or in riser shafts includes a core (22) which includes at least one transmission medium each of which is enclosed with a non-halogenated plastic composition of matter. The core is enclosed with a jacket (28) which also is made of a non-halogenated plastic composition. The non-halogenated plastic material of the insulation includes a polyetherimide constituent and an additive system. The additive system includes an antioxidant/thermal stabilizer and a synergistic metal deactivator and may include a lubricant. For the jacket, the plastic material is a composition which may include a siloxane/polyimide copolymer constituent blended with a polyetherimide constituent and an additive system to improve processing and long term aging, or a siloxane/polyimide copolymer constituent with a flame retardant system.

REFERENCES:
patent: 4374972 (1983-02-01), Bolon et al.
patent: 4433131 (1984-02-01), Bolon et al.
patent: 4485127 (1984-11-01), Pauze
patent: 4699461 (1987-10-01), Taylor et al.
patent: 4816426 (1989-03-01), Bridges et al.
patent: 4907855 (1990-03-01), Oestreich
patent: 4941729 (1990-07-01), Hardin et al.
patent: 4969706 (1990-11-01), Hardin et al.
patent: 5024506 (1991-06-01), Hardin et al.
Fairmount Chemical Co. brochure, Rev. 3/31/82, "Mixxim AO-30", 117 Blanchard st., Newark, N.J. 07105.
Ciba-Geigy brochure, "Irganox.RTM. MD-1024", Ciba-Geigy Corp., Three Skyline Dr., Hawthorne, NY 10532, 1983.

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