Title (en)

MICROCAPSULES WITH AQUEOUS CORE CONTAINING OXIDATION-REDUCTION ENZYMES AND THEIR USE IN OXIDATIVE DYEING COMPOSITIONS

Title (de)

MIKROKAPSEL MIT WASSERHALTIGEM KERN ENTHALTEND OXIDOREDUKTASE-ENZYME SOWIE IHRE VERWENDUNG IN HAARFÄRBEMITTEL

Title (fr)

MICROCAPSULES À COEUR AQUEUX CONTENANT DES ENZYMES D'OXYDO-RÉDUCTION ET LEUR UTILISATION DANS DES COMPOSITIONS DE TEINTURE D'OXYDATION

Publication

EP 1367983 A1 20031210 (FR)

Application

EP 02708419 A 20020227

Priority

• FR 0200704 W 20020227
• FR 0102972 A 20010305

Abstract (en)

[origin: WO02069922A1] The invention concerns microcapsules with aqueous core containing at least an oxidation-reduction enzyme selected among the oxidoreductases with 2 electrons, the oxidoreductases with 4 electrons and the peroxidases, and with a polymer coating consisting of at least a polymer selected among polycaprolactone, poly(3-hydroxybutyrate), poly(ethylene adipate), poly(butylene adipate), cellulose esters and at least a C1-C4 carboxylic acid, styrene and maleic anhydride copolymers, styrene and acrylic acid copolymers, styrene-ethylene/butylene-styrene block terpolymers, styrene-ethylene/propylene-styrene block terpolymers, and ethylene, vinyl acetate and maleic anhydride terpolymers. The invention also concerns a method for preparing said microcapsules and oxidation dyeing compositions containing same.

IPC 1-7

A61K 7/13; A61K 7/06

IPC 8 full level

A61Q 5/10 (2006.01); A61K 8/11 (2006.01); A61K 8/66 (2006.01); A61K 8/73 (2006.01)

CPC (source: EP)

A61K 8/11 (2013.01); A61K 8/66 (2013.01); A61Q 5/10 (2013.01); A61K 2800/412 (2013.01)

Citation (search report)

See references of WO 02069922A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 02069922 A1 20020912; EP 1367983 A1 20031210; FR 2821548 A1 20020906; FR 2821548 B1 20030530

DOCDB simple family (application)

FR 0200704 W 20020227; EP 02708419 A 20020227; FR 0102972 A 20010305