The Universal Selection Source: Cosmetics Ingredients

Patent

FINE POWDER OF POLYAMIDE FROM RENEWABLE MATERIALS AND METHOD FOR MAKING SUCH A POWDER


Application Date:
May 11, 2017
USPTO Patent:
US 15412644
Abstract:

The present invention relates to a powder of polyamide PA (homopolyamide or copolyamide) derived at least partially from renewable materials, in which the particles have a nonspherical shape and a volume median diam...

Assignee:
Inventors:
Karine LOYEN, Pont-Audemer (FR)
Eric LABONNE, Bernay (FR)
International Classification:
C08J 3/12 (20170511); A61K 8/25 (20170511); C08K 3/36 (20170511); A61Q 1/12 (20170511); A61Q 1/10 (20170511); A61K 8/02 (20170511); A61K 8/88 (20170511)

Claims

What is claimed is:

1. A polyamide PA (PA) powder comprising a homopolyamide or copolyamide derived at least partially from renewable materials, in which particles of the powder have a nonspherical, irregular shape, without sharp edges, and a volume median diameter within the range of from 5 to 20 μm, an absorption capacity, measured...

Description

FIELD OF THE INVENTION

The present invention relates to fine powders, such as those using cosmetics, pharmacy or perfumery. The present invention relates more particularly to a fine powder of polyamide derived from renewable materials. The invention also relates to a process for the manufacture of such a powder derived from renewable starting materials.

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