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...http://www.google.fr/patents/US6410005?utm_source=gb-gplus-shareBrevet US6410005 - Branched/block copolymers for treatment of keratinous substrates
Branched/block copolymers for treatment of keratinous substrates
