Wax, copper foil flexible wire with wax and speakers using this

Details Wax, copper foil flexible wire with wax and speakers using this Wax, copper foil flexible wire with wax and speakers using this

1997-09-18

2000-09-05

Kuntz, Curtis A.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

381410, 427443, H04R 100, H04R 906, H04R 1102

Patent

active

061154792

ABSTRACT:
This invention is intended to provide a wax excellent as a surface treating agent, a copper foil flexible wire capable of accommodating with flame resistance, and a speaker using this flexible wire. It is characterized in that petroleum wax is mixed with 50 wt %-150 wt % of liquid phosphoric ester flame retardant. In case of forming this flexible wire constituted by a plurality of core wires (8), each of which is wound by copper foil (9) and braided together or stranded, and then impregnated with the wax in order to form a wax layer (10), it realizes to provide a highly flame resistant flexible wire which satisfies the UL Standards 94V-2 or higher level without degrating its flexibility.

REFERENCES:
patent: 5602931 (1997-02-01), Geisenberger

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