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US 5,854,199 AGranted
Cleaning compositions containing acylated dipeptides and acylated amino acids
AssigneeAjinomoto Co., Inc.
InventorsEiko Oshimura, Hideki Yoshihara, Kazutami Sakamoto, Tatsuya Hattori
Life of this patent
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Abstract
A cleansing composition containing a N-long-chain-acylated dipeptide and an N-long-chain-acylated acidic amino acid. The cleansing composition exhibits low skin irritation, excellent resistance to hard water, is free from turbidity and the unpleasant odor associated with some natural peptides. The composition also provides excellent skin and hair feel qualities during and after use.
Claims17
A cleansing composition, comprising:
- (A) an N-long-chain-acylated dipeptide represented by formula (1):
- R.sup.1 --CO--(X--Y)--OM.sup.1 ( 1),
- wherein
- X and Y are each, independently, an acidic amino acid residue,
- R.sup.1 is a linear or branched alkyl or alkenyl group having from 7 to 21 carbon atoms, and
- M.sup.1 is a hydrogen atom, an alkali metal ion, an ammonium ion, an alkylammonium ion, an alkanolammonium ion or a protonated basic amino acid;
- and
- (B) a N-long-chain-acylated acidic amino acid or a salt thereof.
5 more elements
An N-long-chain-acylated dipeptide represented by formula (2):
- ##STR3## wherein R.sup.2 is a linear or branched alkyl or alkenyl group having from 7 to 21 carbon atoms;
- and
- M.sup.2, M.sup.3 and M.sup.4 are each, independently, a hydrogen atom, an alkali metal ion, an ammonium ion, an alkylammonium ion, an alkanolammonium ion or a protonated basic amino acid.
Dependencies are inferred from the claim text.