Zwitterionic polymers and their use in hair treatment preparations

US4814101A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Ludwig Schieferstein · Ratingen, DE
• Horst Hoeffkes · Goldkronach, DE
• Kurt Seidel · Goldkronach, DE
• Karl Giede · Hilden, DE
• Peter Busch

Key dates

• Filing date: Mar 15, 1988
• Grant date: Mar 21, 1989
• Expiry date: Mar 15, 2008

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/5428
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

New zwitterionic polymers are obtained as the copolymerization product of: PA0 from about 30 to about 70 mole % of monomers containing quaternary ammonium groups and corresponding to the following formula: EQU R.sup.1 --CH.dbd.CR.sup.2 --CO--Z--(C.sub.n H.sub.2n)--N.sup.(+) (CH.sub.3).sub.3 ; about 10 to about 30 mole % of monomeric carboxylic acids corresponding to the following formula: EQU R.sup.3 --CH.dbd.CR.sup.4 --COOH; about 10 to about 30 mole % of monomeric esters corresponding to the following formula: EQU R.sup.5 --CH.dbd.CR.sup.6 --COOR.sup.7 ; and, optionally, PA0 0 to about 40 mole % of monomers containing tertiary amino groups and corresponding to the following formula: EQU R.sup.8 --CH.dbd.CR.sup.9 --CO--Z--(C.sub.n H.sub.2n)--NR.sup.10 R.sup.11. The zwitterionic polymers are suitable for the production of hair-washing and hair-care preparations which have a long-lasting hair-softening effect.