Laundry detergent compositions with amino acid based polymers to provide appearance and integrity benefits to fabrics laundered therewith

US6407053B1 · kind B1 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Sherri Lynn Randall · Hamilton, US
• Rajan Keshav Panandiker · Sharonville, US
• Eugene Paul Gosselink · Cincinnati, US
• Bernhard Mohr · Titting, DE
• Dieter Boeckh · Schifferstadt, DE

Key dates

• Filing date: Feb 7, 2000
• Grant date: Jun 18, 2002
• Expiry date: Feb 7, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/72
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Modified polyaspartic acids are obtained by polycondensing (a) 1 to 99.9 mol % aspartic acid with (b) 99 to 0.1 mol % fatty acids, polybasic carboxylic acids, anhydrides of polybasic carboxylic acids, polybasic hydroxycarboxylic acids, monobasic poly-hydroxycarboxylic acids, alcohols, amines, alkoxylated alcohols and amines, amino sugars, carbohydrates, sugar carboxylic acids and/or non-proteinogenic aminocarboxylic acids, or by polymerizing monoethylenically unsaturated monomers in the presence of polyaspartic acids, in the manner of radically initiated graft copolymerization. Also disclosed is a process for preparing these modified polyaspartic acids, as well as the use of these modified polyaspartic acids as additives to washing and cleaning agents, as water conditioning agents and as deposit inhibitors during the condensation of sugar juice.