{HEAD ~ Examples} of the compound employed in the present invention and having an active hydrogen include benzoic acid, salicylic acid, thiosalicylic acid, p hydroxybenzoic acid, 3,5 dihydroxybenzoic acid, p aminobenzoic acid, anthranilic acid, mercaptobenzophenone, p hydroxyphenylacetic acid, phenylurea, diphenylurea, diphenylthiourea, {TAIL ~ benzamide}, benzenesulfonamide, acetylacetone, polyvinylphenol, a novolak resin, bisphenol A, and the like 
include
{ HEAD ~ Examples } of the compound employed in the present invention and having an active hydrogen include benzoic acid , salicylic acid , thiosalicylic acid , p hydroxybenzoic acid , 3,5 dihydroxybenzoic acid , p aminobenzoic acid , anthranilic acid , mercaptobenzophenone , p hydroxyphenylacetic acid , phenylurea , diphenylurea , diphenylthiourea , { TAIL ~ benzamide } , benzenesulfonamide , acetylacetone , polyvinylphenol , a novolak resin , bisphenol A , and the like
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