| 摘要 |
The invention relates to a method for the production of biosourced aliphatic polyester powder having a volume median diameter of less than 30 mum, comprising: a step consisting in supplying an aliphatic polyester having an inherent viscosity of less than 0.5 dl/g; and a step consisting in grinding the polyester, so as to obtain a polyester powder having a volume median diameter of less than 30 mum. The invention also relates to a powder in which the particles have a volume median diameter of less than 30 mum and are impregnated with a compound selected from among polyols and/or carboxylic acids. The invention further relates to the use of the powder for the production of cosmetic, pharmaceutical and perfume products. |
