Clear surface-active mixtures containing anionic surfactant, APG, and temporarily cationic copolymer

US5811386A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Reinhard Mueller · Unterhaching, DE
• Kurt Seidel · Goldkronach, DE
• Detlef Hollenberg · Hilden, DE
• Manuela Ehlert · Leverkusen, DE

Key dates

• Filing date: Jul 31, 1997
• Grant date: Sep 22, 1998
• Expiry date: Jul 31, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/662
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A surface active mixture comprising: (A) from about 1 to about 50% by weight of an anionic surfactant having one or two lipophilic groups and having from 1 to 22 carbon atoms and a polar group selected from the group consisting of carboxylate, sulfate and sulfonate groups; (B) from about 0.5 to about 15% by weight of an alkyl glycoside of the formula R(G).sub.x, wherein R is a linear saturated alkyl radical having from 8 to 22 carbon atoms and (G).sub.x is a glycoside or oligoglycoside unit with a degree of oligomerization x of 1 to 10; (C) from about 0.1 to about 7% by weight of a nitrogen-containing copolymer having a molecular weight of from about 15,000 to about 1,500,000 wherein said copolymer is comprised of: (i) from about 99.5 to about 45 mole-% of units derived from vinyl pyrrolidone, (ii) from at 0.5 to about 50 mole-% of units derived from a monomer corresponding to formula (I): EQU CH.sub.2 .dbd.CHR.sup.1 --COOR.sup.2 --NR.sup.3 R.sup.4 (I) R.sup.1 is hydrogen or methyl, R.sup.2 is a C.sub.1-20 alkylene group and each of R.sup.3 and R.sup.4 is independently a C.sub.1-4 alkyl group and, (iii) from 0 to about 50 mole-% of units derived from at least one ethylenically unsa…