Rhodia Poliamida E Especialidades Ltda

Tarcis Cordeiro Bastos

Thomas Canova

Gabriel Gorescu

Dany Bizaroli De Mendonca

Thomas Gonzaga Canova

Daniel Hideki Di Petta

Karla Krivtzoff Laguens

Leo Ricardo Bedore Dos Santos

Karla Krivtzoff Lagueens

Dany Bizaroli De Mendonça

Léo Ricardo Bedore Dos Santos

Karla Krivtzoff Lagüens

The subject of the present invention is yarns, fibers or filaments and also a textile article and a medical device obtained from said yarns, for improving skin cicatrization, in particular by activating collagen synthesis at the surface of the injured skin. The yarns, fibers or filaments of the invention comprise a polymeric matrix and inorganic fillers, uniformly dispersed in the polymeric matrix, having properties of absorption and/or of emission in the 2-20 &#x3bc;m far-infrared region.

Yarns, fibers or filaments, textile article, and medical device obtained from said yarns for skin cicatrization

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.

Cosmetic composition containing a dispersion of polymer particles and mineral fillers

Polymeric compositions containing additives having properties of emission and/or absorption of radiation in the long infrared region, and articles shaped therefrom are produced, including yarns and textile articles such as fabrics or knits; such additives include organic additives or inorganic fillers which have a capacity for absorption/emission of radiation in the infrared region, in a wavelength range of from 2 &#x3bc;m to 20 &#x3bc;m, and also a polymeric substrate, with the proviso that the inorganic fillers may be selected from among oxides, sulfates, carbonates, phosphates and silicates, and such inorganic fillers having an average particle size of less than 2 &#x3bc;m.

Methods of using polymeric compositions containing IR-emitting absorbing additives

Polymeric compositions containing IR-emitting/absorbing additives and shaped articles comprised thereof

A method for producing a thermoplastic polymeric matrix includes adding a suspension containing a silicate compound and/or barium sulfate either before or during the polymerization of the polymerizable polymeric matrix; various articles are obtained by forming this polymeric matrix, such as yarns, fibers, filaments, films and molded articles.

Production of thermoplastic polymer matrices

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Sao Paulo, Brazil

Tarcis Cordeiro Bastos