发明名称 |
AQUEOUS METAL SALTS OF P-PHENYLENEDIAMINE FREE BASE COLOR DEVELOPER AND METHOD OF MAKING SAME |
摘要 |
A stabilized solution of an alkali metal or alkaline earth metal salt of N-ethyl-N-2-(methanesulfonylaminoethyl)-2-methyl-p-phenylenediamine includes from about 10 to 40 weight percent of an alkali metal or alkaline earth metal salt of N-ethyl-N-2(methanesulfonylaminoethyl)-2-methyl-p-phenylenediamine; from about 30 to 70 weight percent of at least one photographically inactive water-miscible or water-soluble hydroxy-containing, organic solvent of the alkali metal or alkaline earth metal salt of N-ethyl-N-2(methanesulfonylaminoethyl)-2-methyl-p-phenylenediamine; from about 5 to 40 weight percent water; and from about 1 to 40 weight percent of a preservative for the alkali metal or alkaline earth metal salt of N-ethyl-N-2-(methane sulfonylaminoethyl)-2-methyl-p-phenylenediamine, wherein the weight percentages are based on the total weight of the stabilized solution. Another aspect of the invention are processes for making stabilized p-phenylenediamine color developer solutions. Another embodiment is a stabilized aqueous solution of an alkali metal or alkaline earth metal salt of N-ethyl-N-2-(methanesulfonylaminoethyl)-2-methyl-p-phenylenediamine having from about 10 to 40 weight percent of an alkali metal or alkaline earth metal salt of N-ethyl-N-2-(methane sulfonylaminoethyl)-2-methyl-p-phenylenediamine; from about 20 to 88 weight percent water; and from about 1 to 40 weight percent of a preservative for the alkali metal or alkaline earth metal salt of N-ethyl-N-2-(methane sulfonylaminoethyl)-2-methyl-p-phenylenediamine, wherein the weight percentages are based on the total weight of the composition. Another aspect of the invention are processes for making stabilized p-phenylenediamine color developer solutions.
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申请公布号 |
WO02063393(A8) |
申请公布日期 |
2003.03.13 |
申请号 |
WO2001US50669 |
申请日期 |
2001.10.19 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
HUDNALL, PHILLIP, MONTGOMERY |
分类号 |
G03C5/305;G03C7/413;(IPC1-7):G03C7/413;G03C5/26 |
主分类号 |
G03C5/305 |
代理机构 |
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