Patent ID: 11866525
Assignee: ARCHROMA IP GMBH
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  D | IPC C  D

Claim 6:
7. Method according to at claim 1, wherein the emulsion polymerization is initiated by a water-soluble azo compound of formula (2) and/or formula (3), in which
X and Y signify independently from each other O or NH,
R and R′ signify independently from each other hydrogen, or linear or branched C1-C4 alkyl substituted with one or more hydroxyl, CO3M1 or CO3M2 groups, wherein M1 and M2 signify at least one cation for balancing the anionic charge of the azo compound of formula (3) and are independently from each other selected from the group comprising or essentially consisting of hydrogen, an alkali metal cation, an alkaline earth metal cation, ammonium, ammonium which is mono-, di-, tri- or tetrasubstituted by a C1 to C4 linear or branched alkyl radical, ammonium which is mono-, di-, tri- or tetrasubstituted by a C1 to C4 linear or branched hydroxyalkyl radical, ammonium which is di-, tri-, or tetrasubstituted by a mixture of C1 to C4 linear or branched alkyl radical or C1 to C4 linear or branched hydroxyalkyl radical or mixtures of said cations.