Preparations containing hyperbranched polymers

Details Preparations containing hyperbranched polymers Preparations containing hyperbranched polymers

C - Chemistry, Metallurgy

08

L

C08L 67/00 (2006.01) C08J 3/20 (2006.01) C08K 11/00 (2006.01)

Patent

CA 2627459

The present invention relates to preparations comprising at least one low molecular weight substance and at least one hyperbranched polymer, wherein the hyperbranched polymer comprises a hydrophilic core having polyester units and hydrophobic end groups, said hyperbranched polymer having a molecular weight greater than or equal to 6000 g/mol and a hydroxyl number in the range from 0 to 200 mg KOH/g, the degree of branching being in the range from 20 to 70%, and said hyperbranched polymer having a melting point of at least 30°C.

L'invention concerne des préparations comprenant au moins une substance à faible poids moléculaire et au moins un polymère hyperramifié, ledit polymère hyperramifié comprenant un noyau hydrophile comportant des unités polyester. Ledit polymère hyperramifié présente un poids moléculaire supérieur ou égale à 6000 g/mol et une quantité d'hydroxy comprise entre 0 et 200 mg KOH/g, le degré de ramification étant compris entre 20 et 70%. Ledit polymère hyperramifié présente une température de fusion d'au moins 30°C.

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