Patents Assigned to Rhodia Poliamida E Especialidades Ltda
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Patent number: 10239116Abstract: The present invention relates to a solvent system characterized by the fact that is comprises one or more dioxolane-derived esters of formula I where R1, R2 and R3 are the same or different, selected from hydrogen, alkyl, alkenyl and phenyl, and n is an integer between 1 and 5.Type: GrantFiled: February 12, 2014Date of Patent: March 26, 2019Assignee: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Ronaldo Nascimento, Suelbi Silva
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Patent number: 9919461Abstract: The use of thermoplastic polymers for the preparation of injection-molded articles and the resulting articles are described. Also described, is the use of a lubricated polyamide, obtained by means of the addition of at least one lubricant during the polyamide polymerization method, for the preparation of injection-molded articles.Type: GrantFiled: March 22, 2011Date of Patent: March 20, 2018Assignee: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Gisela Perez Gesteira, Olivier Chaubet, Thomas Canova, Guainumbi Medeiros, Suzana Kupidlowski
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Patent number: 9814798Abstract: 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 ?m far-infrared region.Type: GrantFiled: May 16, 2012Date of Patent: November 14, 2017Assignee: Rhodia Poliamida E Especialidades LTDAInventors: Tarcis Cordeiro Bastos, Gabriel Gorescu, Thomas Canova
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Patent number: 9492373Abstract: 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 ?m to 20 ?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.Type: GrantFiled: May 21, 2013Date of Patent: November 15, 2016Assignee: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Thomas Gonzaga Canova, Gabriel Gorescu, Tarcis Cordeiro Bastos
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Patent number: 9421162Abstract: 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 ?m to 20 ?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 ?m.Type: GrantFiled: December 17, 2012Date of Patent: August 23, 2016Assignee: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Thomas Canova, Dany Bizaroli De Mendonca, Tarcis Cordeiro Bastos
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Publication number: 20150361281Abstract: The present invention relates to a solvent system characterized by the fact that is comprises one or more dioxolane-derived esters of formula I where R1, R2 and R3 are the same or different, selected from hydrogen, alkyl, alkenyl and phenyl, and n is an integer between 1 and 5.Type: ApplicationFiled: February 12, 2014Publication date: December 17, 2015Applicant: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Ronaldo NASCIMENTO, Suelbi SILVA
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Patent number: 9126967Abstract: A process for the production of dioxolane compounds of formula (I): wherein R1 and R2 independently represent hydrogen or an alkyl chain from 1 to 10 carbon atoms; R3 and R4 independently represent hydrogen, an alkyl chain from 1 to 5 carbon atoms, or an alkyl chain from 1 to 5 carbon atoms which is endowed with one or more hydroxyl groups, such process comprising a reaction between crude glycerol and an aldehyde or a ketone, with a molar ratio of aldehyde:glycerol or ketone:glycerol from 3:1 to 20:1.Type: GrantFiled: September 30, 2011Date of Patent: September 8, 2015Assignee: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Edson Rodrigues, Arthur Malheiro
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Patent number: 9044384Abstract: 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 ?m to 20 ?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 ?m.Type: GrantFiled: December 11, 2008Date of Patent: June 2, 2015Assignee: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Thomas Canova, Dany Bizaroli De Mendonca, Tarcis Cordeiro Bastos
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Patent number: 9024081Abstract: Crude glycerol obtained from raw materials, such as the glycerol obtained during the production of biodiesel or glycerol obtained during the conversion of fats or oils, is purified by forming a dioxolane therefrom by reacting the crude glycerol with a ketone or aldehyde, separating the dioxolane thus formed, converting the dioxolane into purified glycerol and ketone/aldehyde, and recovering the glycerol thus purified.Type: GrantFiled: May 18, 2009Date of Patent: May 5, 2015Assignee: Rhodia Poliamida e Especialidades LTDAInventors: Richard Macret, Celio Ferraz Wagner Lourenco
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Patent number: 8871863Abstract: 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.Type: GrantFiled: July 20, 2009Date of Patent: October 28, 2014Assignee: Rhodia Poliamida e Especialidades LTDAInventors: Daniel Hideki Di Petta, Karla Krivtzoff Laguens, Leo Ricardo Bedore Dos Santos, Tarcis Cordeiro Bastos, Thomas Canova
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Patent number: 8853310Abstract: A method for preparing a lubricated thermoplastic polymer, in particular a lubricated polyamide is described. A method for preparing a lubricated thermoplastic polymer, in particular a lubricated polyamide, according to which a mixture of lubricants is added to the molten polymer during the polymerization process is also described.Type: GrantFiled: December 11, 2009Date of Patent: October 7, 2014Assignee: Rhodia Poliamida e Especialidades LtdaInventors: Giseal Perez Gesteira, Antonio Cesar Silva
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Patent number: 8821648Abstract: Multi-purpose cleaning compositions, in particular multi-purpose aqueous alkaline compositions for cleaning surfaces, and base preparations for this purpose. Such base preparations comprise one or more solvents that are at least partially water-miscible, one or more alkali metal salts of carboxylic acids, and water. Such multi-purpose cleaning compositions comprise at least such base preparation, a surfactant, a basifying agent, and water.Type: GrantFiled: April 10, 2012Date of Patent: September 2, 2014Assignee: Rhodia Poliamida e Especialidades LtdaInventor: Wagner Lourenco
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Publication number: 20140235878Abstract: A process for the production of dioxolane compounds of formula (I): wherein R1 and R2 independently represent hydrogen or an alkyl chain from 1 to 10 carbon atoms; R3 and R4 independently represent hydrogen, an alkyl chain from 1 to 5 carbon atoms, or an alkyl chain from 1 to 5 carbon atoms which is endowed with one or more hydroxyl groups, such process comprising a reaction between crude glycerol and an aldehyde or a ketone, with a molar ratio of aldehyde:glycerol or ketone:glycerol from 3:1 to 20:1.Type: ApplicationFiled: September 30, 2011Publication date: August 21, 2014Applicant: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Edson Rodrigues, Arthur Malheiro
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Patent number: 8809592Abstract: A process for producing diisobutyl ketone (DIBK) which includes bringing together triacetone dialcohol (TDA) and a bifunctional catalyst that can perform a dehydration and hydrogenation reaction is described.Type: GrantFiled: November 17, 2011Date of Patent: August 19, 2014Assignee: Rhodia Poliamida e Especialidades LtdaInventors: Giovanni Rosso, Wilson Martins
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Publication number: 20140228584Abstract: A process for the production of dioxolane compounds of formula (I), wherein R1 and R2 independently represent hydrogen or an alkyl chain from 1 to 10 carbon atoms; R3 and R4 independently represent hydrogen, an alkyl chain from 1 to 5 carbon atoms or an alkyl chain from 1 to 5 carbon atoms endowed with one or more hydroxyl groups. Such process comprises successively a reaction step between crude glycerol and aldehyde or ketone and a liquid-liquid extraction step with an extracting ketonic solvent corresponding to formula (II) with A and B independently being an alkyl chain with 2 to 10 carbon atoms, or phenyl, A and B not comprising hydroxyl functions.Type: ApplicationFiled: September 30, 2011Publication date: August 14, 2014Applicant: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Edson Rodrigues, Arthur Malheiro
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Patent number: 8754253Abstract: An process to obtain a mixture of lower carboxylic acid mono, di and triesters, from raw glycerin, a by-product of the process to obtain biodiesel, a transesterification of vegetable raw material with lower alcohols is described. Also described is a process to obtain triacetin or a mixture of mono-, di- and triacetin from that raw glycerin, without prior purification.Type: GrantFiled: June 29, 2010Date of Patent: June 17, 2014Assignee: Rhodia Poliamida e Especialidades LtdaInventors: Cristina Maria Schuch, Aires Lacovone
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Publication number: 20140065092Abstract: 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 ?m far-infrared region.Type: ApplicationFiled: May 16, 2012Publication date: March 6, 2014Applicant: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Tarcis Cordeiro Bastos, Gabriel Gorescu, Thomas Canova
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Publication number: 20140031271Abstract: Multi-purpose cleaning compositions, in particular multi-purpose aqueous alkaline compositions for cleaning surfaces, and base preparations for this purpose. Such base preparations comprise one or more solvents that are at least partially water-miscible, one or more alkali metal salts of carboxylic acids, and water. Such multi-purpose cleaning compositions comprise at least such base preparation, a surfactant, a basifying agent, and water.Type: ApplicationFiled: April 10, 2012Publication date: January 30, 2014Applicant: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventor: Wagner Lourenco
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Publication number: 20140018468Abstract: The present invention relates to foundry binder systems forming a curable polyurethane with a catalytically effective amount of a curing catalyst, comprising at least one phenolic resin component comprising at least: a phenolic resin and a solvent of triacetin type and a polyisocyanate component. The invention also relates to foundry mixtures prepared from the binder and an aggregate, to foundry forms such as cores and molds prepared via the no-bake or cold-box processes, and also to the respective processes. The foundry forms obtained by the present invention are especially used for manufacturing metallic components, especially for the casting of metallic components.Type: ApplicationFiled: March 20, 2012Publication date: January 16, 2014Applicant: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Cristina Maria Schuch, Denilson José Vicentim, Luciane Sereda, Suelbi Silva
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Publication number: 20130316024Abstract: A cosmetic kit and the use thereof for improving the appearance of the skin is described. Further described, is the prevention and/or controlling of cellulite or the orange peel syndrome and/or for slimming down the figure, through the increase of the elasticity and firmness of the skin by stepping up collagen synthesis, for increasing blood microcirculation and for improving thermoregulation of the skin.Type: ApplicationFiled: November 18, 2011Publication date: November 28, 2013Applicant: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Gabriel Gorescu, Thomas Canova, Tarcis Cordeiro Bastos, Karla Laguens