92  US 7,851,130 B2  91  In formula (A), R 250 , R 251  and R 252  each represents a  hydrogen atom, an alkyl group having from 1 to 20 carbon  atoms, a cycloalkyl group having from 3 to 20 carbon atoms,  or an aryl group having from 6 to 20 carbon atoms, and R 250  and R $^{251 }$may be bonded to each other to form a ring. These  groups may have a substituent, and as the alkyl group and  cycloalkyl group having a substituent, an aminoalkyl group  having from 1 to 20 carbon atoms or an aminocycloalkyl  group having from 3 to 20 carbon atoms, a hydroxyalkyl  group having from 1 to 20 carbon atoms or a hydroxycy› cloalkyl group having from 3 to 20 carbon atoms are pre› ferred.  These groups may contain an oxygen atom, a sulfur atom  or a nitrogen atom in the alkyl chain.  In formula (E), R  253 , R  254 , R  $^{255 }$and R $^{256 }$each represents  an alkyl group having from 1 to 6 carbon atoms, or a  cycloalkyl group having from 3 to 6 carbon atoms.  As the preferred examples of basic compounds, guanidine,  aminopyrrolidine, pyrazole, pyrazoline, piperazine, amino- morpholine, aminoalkylmorpholine, and piperidine can be  exemplified, and these compounds may have a substituent. As  more preferred basic compounds, compounds having an imi› dazole structure, a diazabicyclo structure, an onium hydrox› ide structure, an onium carboxylate structure, a trialkylamine  structure, an aniline structure, or a pyridine structure, alky› lamine derivatives having a hydroxyl group and/or an ether  bond; and aniline derivatives having a hydroxyl group and/or  an ether bond can be exemplified.  As the compounds having an imidazole structure, imida- zole, 2,4,5-triphenylimidazole, and benzimidazole can be  exemplified. As the compounds having a diazabicyclo struc› ture, 1,4-diazabicyclo[2.2.2]octane, 1,5-diazabicyclo[ 4.3.0]  nona-5-ene, and 1,8-diazabicyclo[5.4.0]undeca-7-ene can be  exemplified. As the compounds having an onium hydroxide  structure, triarylsulfonium hydroxide, phenacylsulfonium  hydroxide, sulfonium hydroxide having a 2-oxoalkyl group,  specifically triphenylsulfonium hydroxide, tris(t-butyl-phe› ny l)sulfonium  hydroxide,  bis( t-buty lpheny l)iodonium  hydroxide, phenacylthiophenium hydroxide, and 2-oxopro- pyl-thiophenium hydroxide can be exemplified. The com› pounds having an onium carboxylate structure are com› pounds having an onium hydroxide structure in which the  anionic part is carboxylated, e.g., acetate, adamantane-1-car› boxylate, and perfluoroalkyl carboxylate are exemplified. As  the compounds having a trialkylamine structure, tri(n-butyl)  amine and tri(n-octyl)amine can be exemplified. As the  aniline compounds, 2,6-diisopropylaniline and N,N-dim- In the above formulae, L$_{1 }$to L$_{8}$ ,  which may be the same or  different, each represents a hydrogen atom, a hydroxymethyl  group, a methoxymethyl group, an ethoxymethyl group, or an  alkyl group having from 1 to 6 carbon atoms.  Crosslinking agents are used generally in proportion of  from 3 to 70 mass% in the solids content of the photosensitive  composition, and preferably from 5 to 50 mass %.  For decreasing the fluctuation of performances due to  aging during the period of time from exposure to heating, it is  preferred for the photosensitive composition of the invention  to contain a basic compound.  As the preferred structures of basic compounds, the struc› tures represented by any of the following formulae (A) to (E)  can be exemplified.  -continued  OH  OH  Ls  Ls  OH  OH  OH  OH  Ls  Ls  OH  OH  (A)  R2s1  I  R2so_N-R2s2  I  I  (B)  -N-C=N- I  I  (C)  =C-N=C- I  I  (D)  =C-N- (E)  rS4  1  rss  R2s3_C-N-C-R2s6  I  I  Basic Compound (F): 