Use of polyalkylkene oxide-containing graft copolymers as solubilizers

US6271307A · kind A · utility

Assignee

• BASF SE

Inventors

• Jürgen Huff · Ludwigshafen, DE
• Helmut Meffert · Mannheim, DE
• Folker Ruchatz · Neustadt, DE

Key dates

• Filing date: Apr 1, 1999
• Grant date: Aug 7, 2001
• Expiry date: Apr 1, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K9/2031
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The use of graft copolymers obtainable by grafting PA1 a) polyalkylene oxides with PA1 b) at least one monomer selected from the group of PA2 b.sub.1) C.sub.1 -C.sub.30 -alkyl esters of monoethylenically unsaturated C.sub.3 -C.sub.8 -carboxylic acids; PA2 b.sub.2) vinyl esters of aliphatic C.sub.1 -C.sub.30 -carboxylic acids; PA2 b.sub.3) C.sub.1 -C.sub.30 -alkyl vinyl ethers; PA2 b.sub.4) N--C.sub.1 -C.sub.12 -alkyl-substituted amides of monoethylenically unsaturated C.sub.3 -C.sub.8 -carboxylic acids; PA2 b.sub.5) N,N--C.sub.1 -C.sub.12 -dialkyl-substituted amides of monoethylenically unsaturated C.sub.3 -C.sub.8 -carboxylic acids as solubilizer.