Hair care polymer
AssigneeDsm IP Assets B.V.
InventorsRobin Elisabeth Maria Jacobus Daenen, Franciscus Johannes Marie Derks, Dirk Weber, Ruediger Wilz
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Abstract
The invention relates to specific quaternized hyperbranched polymers having end-groups of formula (I) characterized in that said quaternized hyperbranched polymer is obtainable by preparation of a hyperbranched polymer having dimethylamino end groups by condensation of 2-dodecen-1-ylsuccinic anhydride, diisopropanolamine and N,N-bis[3-(dimethylamino)propyl]amine followed by quaternization of the dimethylamino end-groups to end groups of formula (I). Furthermore, the invention is directed to clear shampoo preparations comprising such quaternized hyperbranched polymers.
Claims16
A quaternized hyperbranched polymer having end-groups of formula (I):
- wherein the quaternized hyperbranched polymer is a condensation reaction product of a reaction mixture consisting of:
- (i) 2-dodecen-1-ylsuccinic anhydride,
- (ii) diisopropanolamine, and
- (iii) N,N bis[3-(dimethylamino)propyl]amine,
- to obtain a hyperbranched polymer having dimethylamino end groups followed by quaternization of the dimethylamino end-groups to end groups of formula (I).
A process for the preparation of a hyperbranched polymer having end-groups of formula (I):
- wherein
- the process comprises the steps of:
- (a) subjecting a reaction mixture consisting of (i) 2 dodecen-1-ylsuccinic anhydride, (ii) diisopropanolamine, and (iii) N,N bis[3-(dimethylamino)propyl]amine to condensation reaction conditions to form a hyperbranched polymer having dimethylamino end-groups, followed by
- (b) quaternization of the dimethylamino end-groups of the hyperbranched polymer to obtain a hyperbranched polymer with the end groups of formula (I).
Dependencies are inferred from the claim text.