ACIDIC AQUEOUS COMPOSITION FOR SEMIGLOSSY TIN PLATING AND MEMBER HAVING SEMIGLOSSY TIN PLATING FILM
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United States of America Patent
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Issued Date -
Feb 27, 2014
app pub date -
Feb 28, 2013
filing date -
Aug 24, 2012
priority date (Note) -
Abandoned
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Abstract
An acidic aqueous composition for semiglossy tin electroplating has a water-soluble tin (II)-containing substance and a surfactant. The surfactant includes a surfactant (A) comprising N,N′,N′-polyoxyethylene-N-alkyl-1,3-diaminopropane. The surfactant (A) the number of carbon atoms of the alkyl group that bonds to N ranges from 14 to 18. The weight-average molecular weight of the surfactant (A) ranges from 300 to 1500.
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