Title:
WAX, COPPER FOIL YARN WIRE PREPARED BY USING THE SAME AND USED FOR LOUDSPEAKER, AND LOUDSPEAKER
Document Type and Number:
Japanese Patent JP3874467
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a wax excellent as a surface-treating agent, a copper foil yarn wire which can cope with the requirement for flame retardation and a loudspeaker made by using this wire.
SOLUTION: This wax is prepared by mixing a petroleum-derived wax base with 50-150wt.% liquid phosphate flame retardant. When a copper foil yarn wire 7a is formed by winding a copper foil 9 around a wadding 8 to form a single wire, braiding or stranding such single wire and impregnating the formed copper foil yarn wire with a wax 19, it can realize flame retardancy at least equivalent to UL standard 94V-2 without detriment to flexibility.
Inventors:
Kazuo Okusawa
Koeiyan Tamei
Koeiyan Tamei
Application Number:
JP25522196A
Publication Date:
January 31, 2007
Filing Date:
September 27, 1996
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
C08K3/22; C08L91/08; C08K5/00; C08K5/02; C08K5/03; C08K5/521; C08K5/523; C08K5/57; H04R9/02; H04R9/04; (IPC1-7): C08L91/08; C08K3/22; C08K5/00; C08K5/02; C08K5/521; C08K5/57; //H04R9/04
Domestic Patent References:
| JP50078604A |
Attorney, Agent or Firm:
Yoshihiro Morimoto