Concentrated fabric softening composition with good freeze/thaw recovery and highly unsaturated fabric softener compound therefor

US5877145A · kind A · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Errol Hoffman Wahl · Cincinnati, US
• Helen Bernardo Tordil · Sharonville, US
• Toan Trinh · Maineville, US
• Eugene Robert Carr · Peoria, US
• Robert O. Keys · Columbus, US
• Laura Marie Meyer · Cincinnati, US
• Hugo Jean Marie Demeyere · Merchtem, BE
• Dean Larry DuVal · Lebanon, US
• Mitsuyo Okamoto · Kobe, JP

Key dates

• Filing date: Jan 26, 1998
• Grant date: Mar 2, 1999
• Expiry date: Jan 26, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/0015
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Biodegradable fabric softener compounds that contain ester linkages a substantial level of polyunsaturation in the hydrophobic chains. The compounds can be used to form fabric softening compositions that are aqueous dispersions of the compounds or clear compositions. These compositions have a desirable low viscosity and recover, after freezing and thawing to have a stable low viscosity.