Branched/block copolymers for treatment of keratinous substrates

US6410005B1 · kind B1 · utility

Assignee

• PMD Holdings Corp. · US

Inventors

• Ramiro Galleguillos · Glendale Heights, US
• David J. Smith · Shoreview, US
• Steven Constantino · LaGrange, US
• Daniel F. Hasman, Jr. · North Royalton, US

Key dates

• Filing date: Jun 15, 2000
• Grant date: Jun 25, 2002
• Expiry date: Jun 15, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L53/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A block copolymer for hair styling compositions includes hydrophilic and hydrophobic blocks which allow for optimization of desirable characteristics of the hair styling composition, such as flow onto the hair, prevention of curl droop, style retention at high humidity, tack, hardness, resistance to flaking, restylability, volumizing, and washability from the hair. The copolymer includes a polyacrylate backbone of hydrophobic blocks, with hydrophilic acrylate side chains. The copolymer is suitable for the formulation of a number personal care, household, hair care, skin care and other formulation. The copolymer is suited to incorporation into low VOC hydro-alcoholic hair styling compositions to meet reduced VOC, regulations.