Method for manufacturing a heat resistant voice coil

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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Details

156169, 156325, 1563311, 29606, 296091, 427116, 427120, 381194, H01F 306, B65H 8100

Patent

active

050910280

ABSTRACT:
This invention provides a heat-resistant voice coil of H class in heat-resistance standard, which is characterized in that an electrically insulated adhesive paint applied onto both a bobbin and conductor wire is mainly consisted of a mixture comprising all aromatic polyamide resin and a hardening agent composed of aromatic polyamic acid. This invention further provides a method of manufacturing such a heat-resistant voice coil, wherein the conductor wire coated with the paint is wound around the bobbin preliminarily coated with the paint in a semihardened state, while applying a non-water polar solvent onto the bobbin.

REFERENCES:
patent: 3006899 (1961-10-01), Hill, Jr. et al.
patent: 3179614 (1965-04-01), Edwards
patent: 3444183 (1969-05-01), Hubbuch
patent: 3492270 (1970-01-01), Parish
patent: 3906139 (1975-09-01), Hiraoka et al.
patent: 3926760 (1975-12-01), Allen et al.
patent: 4467011 (1984-08-01), Brooks et al.
"Nomenclature for the Adhesives Industry", Nov. 23, 1959.

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