Preparation, useful e.g. as a hardening agent and catalyst, and in cosmetics and medicines, comprises a low-molecular substance and a hyperbranched polymer having a hydrophilic core containing polyester unit and hydrophobic terminal group

摘要

Preparation (I) comprises at least a low-molecular substance and at least a hyperbranched polymer having a hydrophilic core containing polyester units and hydrophobic terminal groups, where the hyperbranched polymer exhibits a molecular weight of = 6000 g/mol and a hydroxyl value of 0-200 mg potassium hydroxide (KOH)/g, the degree of branching is 20-70% and the hyperbranched polymer exhibits a melting temperature of at least 30[deg]C. Independent claims are included for: (1) the preparation of (I) comprising either mixing the hyperbranched polymer and low-molecular substance, or using a compressed gas or forming at least two liquid phases, where both phases contain the low-molecular substance and at least a liquid phase hyperbranched polymer, or preparing a polymer melt comprising at least a hyperbranched polymer and a low-molecular substance, initiating the polymer melt into a second liquid phase, in which the hyperbranched polymer is highly soluble and the exhibits a hardening temperature that is lower than the hardening temperature of the hyperbranched polymer, dispersing the polymer melt in the second fluid phase in a temperature that is larger or similar to the hardening temperature of the hyperbranched polymer, and hardening the polymer melt that is dispersed in the second liquid phase; and (2) a procedure to release the low-molecular substances from (I), comprising enzymatically degrading the hyperbranched polymer.