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## [Basic Compound] 

The composition of the present invention may further com› prise a basic compound. It is preferred for the basic com- 

-continued 

pound to be a compound whose basicity is stronger than that of phenol. This basic compound is preferably an organic basic compound, more preferably a nitrogen-atom-containing basic compound. 

Useful nitrogen-atom-containing basic compounds are not particularly limited. For example, use can be made of the compounds of categories (1) to (7) below. 

(1) Compounds of general formula (BS-1) below 

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In general formula (BS-1 ), each of Rs independently rep› resents a hydrogen atom or an organic group, provided that in no event all the three Rs are hydrogen atoms. As the organic group, there can be mentioned a linear or branched alkyl group, a cycloalkyl group (monocyclic or polycyclic), an aryl group and an aralkyl group. 

The numberof carbon atoms of the alkyl group represented by R is not particularly limited. However, it is generally in the range of 1 to 20, preferably 1 to 12. 

The number of carbon atoms of the cycloalkyl group rep- resented by R is not particularly limited. However, it is gen› erally in the range of3 to 20, preferably 5 to 15. 

The number of carbon atoms of the aryl group represented by R is not particularly limited. However, it is generally in the range of 6 to 20, preferably 6 to 10. In particular, a phenyl group, a naphthyl group and the like can be mentioned. 

The number of carbon atoms of the aralkyl group repre› sented by R is not particularly limited. However, it is gener- ally in the range of 7 to 20, preferably 7 to 11. In particular, a benzyl group and the like can be mentioned. 

In the alkyl group, cycloalkyl group, aryl group and aralkyl group represented by R, a hydrogen atom thereof may be replaced by a substituent. As the substituent, there can be mentioned, for example, an alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, a hydroxyl group, a carboxyl group, an alkoxy group, an aryloxy group, an alkylcarbony› loxy group, an alkyloxycarbonyl group or the like. 

The compounds represented by general formula (BS-1) in which the at least two Rs are the organic groups are preferred. 

Specific examples of the compounds of general formula (BS-1) include tri-n-butylamine, tri-n-pentylamine, tri-n-oc› tylamine, tri-n-decylamine, triisodecylamine, dicyclohexyl› methylamine, tetradecylamine, pentadecylamine, hexadecy- !amine, octadecylamine, didecylamine, methyloctadecylamine, dimethylundecylamine, N,N-dim› ethy ldodecy !amine, methy ldioctadecy !amine, N,N-dibuty !a› niline, N,N-dihexylaniline, 2,6-diisopropylaniline, 2,4,6-tri (t-butyl)aniline and the like. 

The compounds represented by general formula (BS-1) in which at least one of Rs is a hydroxy lated alkyl group are also preferred. Specific examples of the compounds include tri› ethanolamine, N,N-dihydroxyethylaniline and the like. 

With respect to the alkyl group represented by R, an oxy- gen atom may be present in the alkyl chain to thereby form an oxyalkylene chain. The oxyalkylene chain preferably con› sists of-CH$_{2}$CH$_{2}$ 0-. As particular examples thereof, there can be mentioned tris(methoxyethoxyethyl)amine, com› pounds shown in column 3 line 60 et seq. of U.S. Pat. No. 6,040,112 and the like. 

Specific examples of the basic compounds of general for› mula (BS-1) are shown below. 

