COMPOSITION DE FONDANT DE POLYAMINE ET PROCEDE DE BRASAGE

A polyamine flux composition is provided, comprising, as an initial component: a polyamine fluxing agent represented by formula I: wherein R1, R2, R3 and R4 are independently selected from a hydrogen, a substituted C1-80 alkyl group, an unsubstituted C1-80 alkyl group, a substituted C7-80 arylalkyl...

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Bibliographische Detailangaben
Hauptverfasser:	HO KIM SANG, FLEMING DAVID D, GALLAGHER MIKE K, LIU XIANG-QIAN, WINKLE MARK R
Format:	Patent
Sprache:	fre
Schlagworte:	CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MACHINE TOOLS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PRINTED CIRCUITS SOLDERING OR UNSOLDERING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A polyamine flux composition is provided, comprising, as an initial component: a polyamine fluxing agent represented by formula I: wherein R1, R2, R3 and R4 are independently selected from a hydrogen, a substituted C1-80 alkyl group, an unsubstituted C1-80 alkyl group, a substituted C7-80 arylalkyl group and an unsubstituted C7-80 arylalkyl group; wherein R7 comprises at least two tertiary carbons and is selected from an unsubstituted C5-80 alkyl group, a substituted C5-80 alkyl group, an unsubstituted C12-80 arylalkyl group and a substituted C12-80 arylalkyl group; and, wherein the two nitrogens shown in formula I are each separately bound to one of the at least two tertiary carbons of R7; with the proviso that when the polyamine fluxing agent of formula I is represented by formula Ia: then zero to three of R1, R2, R3 and R4 is(are) hydrogen. Also provided is a method of soldering an electrical contact using the polyamine flux composition.