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1. 发明公开

EP0783034A3 Chelating agent and detergent comprising the same 无效
标题翻译：螯合剂和含有该洗涤剂
公开(公告)号：EP0783034A3
公开(公告)日：1998-07-08
申请号：EP96118762
申请日：1996-11-22
申请人： NITTO CHEMICAL INDUSTRY CO LTD
发明人： YAMAMOTO HIROSHI , TAKAYANAGI YASUYUKI , TAKAHASHI KIYOBUMI , NAKAHAMA TETURO
IPC分类号： C11D1/83 , C11D3/08 , C11D3/20 , C11D3/33 , C11D3/34 , C11D3/395
CPC分类号： C11D3/33 , C11D3/2075 , C11D3/2082 , C11D3/2086 , C11D3/3472 , C11D3/349
摘要： Disclosed is a biodegradable chelating agent which comprises a compound of the following formula [1] and at least one compound selected from the group consisting of aspartic acid, maleic acid, acrylic acid, malic acid, glycine, glycolic acid, iminodiacetic acid, nitrilotriacetic acid, α-alanine, β-alanine, iminodipropionic acid, fumaric acid, a synthetic starting amino acid and a synthetic intermediate amino acid and a salt thereof in an amount of 8% by weight or less based on the compound of the formula [1]: wherein R
1 represents hydrogen or an unsubstituted or substituted hydrocarbon group of 1-10 carbon atoms, R
2 represents hydrogen or an unsubstituted or substituted hydrocarbon group of 1-8 carbon atoms, R
1 and R
2 may form a ring together, the substituent which can be present in R
1 and R
2 is at least one member selected from the group consisting of -OH, -CO
2 M and -SO
3 M where M represents hydrogen or an alkali metal; X represents where R
3 represents hydrogen or an unsubstituted or substituted hydrocarbon group of 1-8 carbon atoms, the substituent is at least one member selected from the group consisting of -OH, -CO
2 M and -SO
3 M, R
4 represents at least one member selected from the group consisting of hydrogen, -CO
2 M and -SO
3 M, A
1 and A
2 each represent at least one member selected from the group consisting of hydrogen, CO
2 M and SO
3 M, A
5 represents an alkylene group of 1-8 carbon atoms which may be of straight chain or branched chain or may form a ring, the alkylene group may contain in the chain an ether bond -O-, an ester bond -COO- or an amide bond -CONH-, M represents hydrogen or an alkali metal, and n represents an integer of 1-8; and Y represents at least one member selected from the group consisting of hydrogen, CO
2 M and SO
3 M.

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