Metal treatment – Compositions – Fluxing
Reexamination Certificate
2008-12-19
2011-12-13
Silverman, Stanley (Department: 1736)
Metal treatment
Compositions
Fluxing
C148S023000
Reexamination Certificate
active
08075706
ABSTRACT:
A paste composition for aluminum brazing of the invention contains 40 to 65% by weight of a metal powder for brazing (a), 5 to 35% by weight of a fluoride type flux (b), 1 to 10% by weight of a methacrylic acid ester type polymer (c), and 10 to 40% by weight of an organic solvent (d); and the component (d) is a hydrocarbon type organic solvent having no aromatic ring and no hydroxyl group and the composition is in a paste-like state having a viscosity of 6,000 to 200,000 mPa·s at 23° C. and accordingly, the storage stability and applicability (practically, discharge property and pressure stability by using a dispenser) and brazing property can be improved in good balance.
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Machine translation of JP 07-155987.
Akazawa Tomoaki
Itoh Akira
Muto Ken
Taninaka Ichiro
Teruse Masaki
Denso Corporation
Harima Chemicals Inc.
Silverman Stanley
Sughrue & Mion, PLLC
Walck Brian
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