申请人:Fuji Photo Film Co., Ltd.
公开号:US05728879A1
公开(公告)日:1998-03-17
A bisguanidine salt selected from the group consisting of a 4-(phenylsulfonyl)phenylsulfonylacetic acid salt of N,N'-bis(1,3-diethylguanyl)ethylenediamine, a 4-(phenylsulfonyl)phenylsulfonylacetic acid salt of N,N'-bis(1,3-diisopropylguanyl)ethylenediamine, a 4-(phenylsulfonyl)phenylsulfonylacetic acid salt of N,N'-bis-(imidazoline-2-yl)ethylenediamine, a 4-(phenylsulfonyl)-phenylsulfonylacetic acid salt of 1,4-bis(1,3-diisopropylguanyl)piperazine, a 4-(phenylsulfonyl)phenylsulfonylacetic acid salt of 1,4-bis(1,3-diethylguanyl)piperazine, a 4-(4-methylphenylsulfonyl)phenylsulfonylacetic acid salt of N,N'-bis(1,3-diethylguanyl)ethylenediamine and a 4-(4-ethylphenylsulfonyl)phenylsulfonylacetic acid salt of 1,4-bis(1,3-diethylguanyl)piperazine which can be used as a base precursor which is rapidly decomposed by heat treatment at 120.degree. C. or less to release a base.
从以下组中选择的一种双胍盐:N,N'-双(1,3-二乙基胍基)乙二胺的4-(苯基磺酰基)苯磺酸盐,N,N'-双(1,3-二异丙基胍基)乙二胺的4-(苯基磺酰基)苯磺酸盐,N,N'-双(咪唑啉-2-基)乙二胺的4-(苯基磺酰基)苯磺酸盐,1,4-双(1,3-二异丙基胍基)哌嗪的4-(苯基磺酰基)苯磺酸盐,1,4-双(1,3-二乙基胍基)哌嗪的4-(苯基磺酰基)苯磺酸盐,N,N'-双(1,3-二乙基胍基)乙二胺的4-(4-甲基苯基磺酰基)苯磺酸盐和1,4-双(1,3-二乙基胍基)哌嗪的4-(4-乙基苯基磺酰基)苯磺酸盐,可用作基本前体,通过在120度或更低的温度下进行热处理迅速分解以释放碱。