SURFACTANT COMPOSITION CONTAINING N-SUBSTITUTED-BETA- ALANINE OR ITS SALT

• Main Authors: WAKUI TSUGIO, IZUMIMOTO HIROYUKI, OKANO TOMOMICHI, SUGIMOTO NOBUKO
• Format: Patent
• Language: English
• Published: 07.03.2000
• Edition: 7
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ADHESIVES; ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMISTRY; DETERGENT COMPOSITIONS; DETERGENTS; DYES; FATTY ACIDS THEREFROM; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC CHEMISTRY; PAINTS; POLISHES; RECOVERY OF GLYCEROL; RESIN SOAPS; SOAP OR SOAP-MAKING; USE OF SINGLE SUBSTANCES AS DETERGENTS

PROBLEM TO BE SOLVED: To obtain a surfactant composition having good odor and color in spite of the use of an N-substituted-β-alanine by including a specific N- substituted-β-alanine (salt) and a specific sulfur compound. SOLUTION: The objective composition contains (A) an N-substituted-β-alanine (salt) of formula RNXCH2CH2COOM [R is a (substituted) 6-25C hydrocarbon group; X is H or (CH2)2COOH; M is H, an alkali metal, an alkaline earth metal or the like] and (B) 0.05-50 wt.%, preferably 5-20 wt.% (based on the component A) of a sulfur compound selected from sulfurous acid (salt) (e.g. sodium sulfite), acidic sulfurous acid (salt) (e.g. sodium bisulfite), persulfuric acid (salt) (e.g. sodium persulfate), dithionous acid (salt) (e.g. sodium dithionite) and thiosulfuric acid (e.g. sodium thiosulfate). The component A is preferably produced by reacting an aliphatic primary amine with an acrylic acid derivative.