Hair treatment compositions

US6524563B1 · kind B1 · utility

Assignee

• Unilever Home & Personal Care USA, Division of Conopco, Inc. · US

Inventors

• Stephen Lee Wire · Bebington, GB
• Keith Leslie Rutherford · Palatine, US
• Robert George Riley · West Richland, US
• David H. Birtwistle · Trongsa, BT

Key dates

• Filing date: Oct 25, 2000
• Grant date: Feb 25, 2003
• Expiry date: Oct 25, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/413
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A hair treatment composition which comprises 0.01-5.0 wt % of a particulate substance which is substantially unagglomerated or unaggregated prior to incorporation in the composition, which particulate substance has a modal primary particle size of 7-40 nm, and a Youngs modulus of at least 4 Gpa, preferably at least 6 GPa.