Arkema France

Thierry Ouvrard

Karine Loyen

Holger Senff

Thierry Senninger

The invention relates to a method for obtaining polyamide or copolyamide particles which are spheroidal and whose average diameter is between 40 and 150 &#x3bc;m, preferably between 60 and 100 &#x3bc;m. Said method consists of introducing a mineral charge, preferably silica, having an average diameter of 1-30 &#x3bc;m into the reaction mixture. The invention also relates to a polyamide or copolyester amide powder and to the use thereof in order to manufacture coatings, ink compositions, paint compositions, cosmetic compositions, pharmaceutical compositions, alloys with metal powders or metal oxide powders and parts by agglomerating said powder by laser sintering, IR radiation or UV radiation.

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Poey de Lescar, France

Thierry Ouvrard