Printed circuit board surface protective agent
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United States of America Patent
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Apr 7, 1998
Grant Date -
N/A
app pub date -
Dec 20, 1993
filing date -
Dec 20, 1993
priority date (Note) -
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Abstract
Described herein is a printed circuit board surface protective agent containing compounds as expressed by Formula I. ##STR1## (herein, Y is a linear or a branched alkyl group having 1 to 20 carbon atoms or (2) ##STR2## X is any of halogen atom, amino group, di-lower alkylamino group, hydroxy group, lower alkoxy group, cyano group, formyl group, acetyl group, benzoyl group, carbamoyl group, carboxyl group, lower alkoxycarbonyl group, or nitro group; X' is any of alkyl group, halogen atom, amino group, di-lower alkylamino group, hydroxy group, lower alcoxy group, cyano group, formyl group, acetyl group, benzoyl group, carbamoyl group, carboxyl group, lower alkoxycarbonyl group or nitro group; n is an integral number from 1 to 4, and X may be either identical or different when n is in a range from 2 to 4. m is an integral number in a range from 1 to 10, p is 0 or an integral number in a range from 1 to 4, and X' may be either identical or different when p is in a range from 2 to 4.)
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