Global Patent Index - EP 1657299 A1

EP 1657299 A1 20060517 - Microcapsules

Title (en)

Microcapsules

Title (de)

Mikrokapseln

Title (fr)

Microcapsules

Publication

EP 1657299 A1 20060517 (DE)

Application

EP 04026980 A 20041112

Priority

EP 04026980 A 20041112

Abstract (en)

Aqueous preparation (I) comprises surface-active substances (a) and micro capsules (b) consisting of a covering (obtained by reaction of a protein with an anionic polymer), an oil phase and/or an active agent. An independent claim is also included for a preparation of micro capsules with an average diameter of 0.1-500 micros, comprising pH-induced coacervation of oil phases and/or active substances into a covering (made of proteins and anionic polymers), cross linking the resulting covering by contacting with an aldehyde component; and treating the reaction products (with a large extent of anionic charge in the covering order) with cationic surfactants and/or polymers with neutral or cationic character.

IPC 8 full level

C11D 17/00 (2006.01); B01J 13/02 (2006.01); C11D 3/38 (2006.01); C11D 3/382 (2006.01); C11D 3/384 (2006.01)

CPC (source: EP)

C11D 3/38 (2013.01); C11D 3/382 (2013.01); C11D 3/384 (2013.01); C11D 17/0039 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

EP 1657299 A1 20060517

DOCDB simple family (application)

EP 04026980 A 20041112