Rhodia Poliamida E Especialidades Ltda

Rhodia Poliamida E Especialidades S.a.

Thomas Gonzaga Canova

Gabriel Gorescu

Tarcis Cordeiro Bastos

Renata Redondo Bonaldi

Everton Ferreira Dos Santos

The present invention relates to a method for providing resistance to phenolic yellowing, during storage, transportation and processing of polyamide articles, caused by the presence of phenolic compounds in plastic package materials. The phenolic yellowing resistance is obtained by adding a sulfonated reagent during polymerization of the polyamide and/or during the formation of the polyamide article, like melt-spinning extrusion, and/or during the conversion of the polyamide article by texturizing.

Method for providing resistance to yellowing in polyamide articles and polyamide articles obtained from this method

A cosmetic composition is described that includes particles of a polymeric composition that includes a polymer matrix and one or a plurality of mineral filler(s), uniformly dispersed in the polymer matrix, having properties of absorption and/or emission in the far infrared region ranging from 2 &#x3bc;m to 20 &#x3bc;m. The particles of the polymeric composition can be dispersed in a carrier fluid including water and/or one or a plurality of organic fluids. The composition is, for example, intended to prevent or reduce the signs of skin aging.

Growing community of inventors

São Paulo, Brazil

Thomas Gonzaga Canova