Patents by Inventor Vinicius GALHARD GRASSI
Vinicius GALHARD GRASSI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220127760Abstract: A yarn may include at least one filament formed from a polymer composition comprising: a polymer at an amount ranging from 95 wt % to 99.99 wt %; a carbon-based nanomaterial at an amount ranging from 0.01 wt % to 5 wt %. A method may include melt spinning a polymer composition to produce a yarn, where the polymer composition includes a polymer at an amount ranging from 95 wt % to 99.99 wt %; a carbon-based nanomaterial at an amount ranging from 0.01 wt % to 5 wt %.Type: ApplicationFiled: October 25, 2021Publication date: April 28, 2022Applicants: SENAI/CETIQT, Braskem S.A.Inventors: Nathan Riany Valerio Albino, Ricardo Rodrigo Ramos Cecci, Camila Vicente de Farias, Igor Lopes Soares, Vinicius Galhard Grassi
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Patent number: 11254808Abstract: Polymer compositions may include a polymer matrix containing a polyolefin, one or more polymer particles dispersed in the polymer matrix, wherein the one or more polymer particles include a polar polymer selectively crosslinked with a crosslinking agent, and wherein the one or more polymer particles has an average particle size of up to 200 ?m. Processes of preparing a polymer composition may include mixing a polyolefin, a polar polymer, and a crosslinking agent; and selectively crosslinking the polar polymer with the crosslinking agent in the presence of the polyolefin. Methods may include increasing stress cracking resistance of a polyolefin by mixing a polar polymer with the polyolefin; and selectively crosslinking the polar polymer in the presence of the polyolefin with a crosslinking agent to form crosslinked polar polymer particles dispersed in the polyolefin.Type: GrantFiled: May 20, 2019Date of Patent: February 22, 2022Assignees: Braskem S.A., Universidade Federal do Rio de JaneiroInventors: Alberto Cláudio Habert, Cristiano Piacsek Borges, Cristina Cardoso Pereira, Maria Elizabeth Ferreira Garcia, Jane Hitomi Fujiyama-Novak, Rafael Aislan Amaral, Bárbara Iria Silva Mano, Vinicius Galhard Grassi, Rogério Massanori Sakahara, Marcelo Farah, Mariele Kaipers Stocker, Marcos Roberto Paulino Bueno
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Patent number: 11111366Abstract: Polymer compositions may include a polymer matrix containing a polyolefin, one or more polymer particles dispersed in the polymer matrix, wherein the one or more polymer particles include a polar polymer selectively crosslinked with a crosslinking agent, and wherein the one or more polymer particles has an average particle size of up to 200 ?m. Processes of preparing a polymer composition may include mixing a polyolefin, a polar polymer, and a crosslinking agent; and selectively crosslinking the polar polymer with the crosslinking agent in the presence of the polyolefin. Methods may include increasing stress cracking resistance of a polyolefin by mixing a polar polymer with the polyolefin; and selectively crosslinking the polar polymer in the presence of the polyolefin with a crosslinking agent to form crosslinked polar polymer particles dispersed in the polyolefin.Type: GrantFiled: May 20, 2019Date of Patent: September 7, 2021Assignees: Braskem S.A., Universidade Federal do Rio de JaneiroInventors: Alberto Cláudio Habert, Cristiano Piacsek Borges, Cristina Cardoso Pereira, Maria Elizabeth Ferreira Garcia, Jane Hitomi Fujiyama-Novak, Rafael Aislan Amaral, Bárbara Iria Silva Mano, Vinicius Galhard Grassi, Rogério Massanori Sakahara, Marcelo Farah, Mariele Kaipers Stocker, Marcos Roberto Paulino Bueno
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Patent number: 10731029Abstract: Polymer compositions may include a polymer matrix containing a polyolefin, one or more polymer particles dispersed in the polymer matrix, wherein the one or more polymer particles include a polar polymer selectively crosslinked with a crosslinking agent, and wherein the one or more polymer particles has an average particle size of up to 200 ?m. Processes of preparing a polymer composition may include mixing a polyolefin, a polar polymer, and a crosslinking agent; and selectively crosslinking the polar polymer with the crosslinking agent in the presence of the polyolefin. Methods may include increasing stress cracking resistance of a polyolefin by mixing a polar polymer with the polyolefin; and selectively crosslinking the polar polymer in the presence of the polyolefin with a crosslinking agent to form crosslinked polar polymer particles dispersed in the polyolefin.Type: GrantFiled: September 30, 2016Date of Patent: August 4, 2020Assignees: Braskem S.A., Universidade Federal do Rio de JaneiroInventors: Alberto Cláudio Habert, Cristiano Piacsek Borges, Cristina Cardoso Pereira, Maria Elizabeth Ferreira Garcia, Jane Hitomi Fujiyama-Novak, Rafael Aislan Amaral, Bárbara Iria Silva Mano, Vinicius Galhard Grassi, Rogério Massanori Sakahara, Marcelo Farah, Mariele Kaipers Stocker, Marcos Roberto Paulino Bueno
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Publication number: 20190270869Abstract: Polymer compositions may include a polymer matrix containing a polyolefin, one or more polymer particles dispersed in the polymer matrix, wherein the one or more polymer particles include a polar polymer selectively crosslinked with a crosslinking agent, and wherein the one or more polymer particles has an average particle size of up to 200 ?m. Processes of preparing a polymer composition may include mixing a polyolefin, a polar polymer, and a crosslinking agent; and selectively crosslinking the polar polymer with the crosslinking agent in the presence of the polyolefin. Methods may include increasing stress cracking resistance of a polyolefin by mixing a polar polymer with the polyolefin; and selectively crosslinking the polar polymer in the presence of the polyolefin with a crosslinking agent to form crosslinked polar polymer particles dispersed in the polyolefin.Type: ApplicationFiled: May 20, 2019Publication date: September 5, 2019Applicants: Braskem S.A., Universidade Federal do Rio de JaneiroInventors: Alberto Cláudio Habert, Cristiano Piacsek Borges, Cristina Cardoso Pereira, Maria Elizabeth Ferreira Garcia, Jane Hitomi Fujiyama-Novak, Rafael Aislan Amaral, Bárbara Iria Silva Mano, Vinicius Galhard Grassi, Rogério Massanori Sakahara, Marcelo Farah, Mariele Kaipers Stocker, Marcos Roberto Paulino Bueno
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Publication number: 20190270868Abstract: Polymer compositions may include a polymer matrix containing a polyolefin, one or more polymer particles dispersed in the polymer matrix, wherein the one or more polymer particles include a polar polymer selectively crosslinked with a crosslinking agent, and wherein the one or more polymer particles has an average particle size of up to 200 ?m. Processes of preparing a polymer composition may include mixing a polyolefin, a polar polymer, and a crosslinking agent; and selectively crosslinking the polar polymer with the crosslinking agent in the presence of the polyolefin. Methods may include increasing stress cracking resistance of a polyolefin by mixing a polar polymer with the polyolefin; and selectively crosslinking the polar polymer in the presence of the polyolefin with a crosslinking agent to form crosslinked polar polymer particles dispersed in the polyolefin.Type: ApplicationFiled: May 20, 2019Publication date: September 5, 2019Applicants: Braskem S.A., Universidade Federal do Rio de JaneiroInventors: Alberto Cláudio Habert, Cristiano Piacsek Borges, Cristina Cardoso Pereira, Maria Elizabeth Ferreira Garcia, Jane Hitomi Fujiyama-Novak, Rafael Aislan Amaral, Bárbara Iria Silva Mano, Vinicius Galhard Grassi, Rogério Massanori Sakahara, Marcelo Farah, Mariele Kaipers Stocker, Marcos Roberto Paulino Bueno
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Patent number: 10030130Abstract: Polymeric blends of polystyrene (PS) and polylactic acid (PLA) are described, in the preparation of which a compatibilizing agent was added, preferably a PS-PLA block copolymer. Such compatibilizing agents act controlling phase separation of the blending compounds, and preventing excessive growth of polystyrene domains scattered in the PLA matrix; and this results in blends with good mechanical and thermal resistance.Type: GrantFiled: May 16, 2014Date of Patent: July 24, 2018Inventors: Vinicius Galhard Grassi, Augusto Cesar De Carvalho Peres, Marcus Fernando Dal Pizzol, Joao Manoel Da Costa, Andreia Ossig, Cesar Liberato Petzhold
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Publication number: 20170096552Abstract: Polymer compositions may include a polymer matrix containing a polyolefin, one or more polymer particles dispersed in the polymer matrix, wherein the one or more polymer particles include a polar polymer selectively crosslinked with a crosslinking agent, and wherein the one or more polymer particles has an average particle size of up to 200 ?m. Processes of preparing a polymer composition may include mixing a polyolefin, a polar polymer, and a crosslinking agent; and selectively crosslinking the polar polymer with the crosslinking agent in the presence of the polyolefin. Methods may include increasing stress cracking resistance of a polyolefin by mixing a polar polymer with the polyolefin; and selectively crosslinking the polar polymer in the presence of the polyolefin with a crosslinking agent to form crosslinked polar polymer particles dispersed in the polyolefin.Type: ApplicationFiled: September 30, 2016Publication date: April 6, 2017Applicants: Braskem S.A., Universidade Federal do Rio de JaneiroInventors: Alberto Cláudio Habert, Cristiano Piacsek Borges, Cristina Cardoso Pereira, Maria Elizabeth Ferreira Garcia, Jane Hitomi Fujiyama-Novak, Rafael Aislan Amaral, Bárbara Iria Silva Mano, Vinicius Galhard Grassi, Rogério Massanori Sakahara, Marcelo Farah, Mariele Kaipers Stocker, Marcos Roberto Paulino Bueno
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Publication number: 20160130430Abstract: Polymeric blends of polystyrene (PS) and polylactic acid (PLA) are described, in the preparation of which a compatibilizing agent was added, preferably a PS-PLA block copolymer. Such compatibilizing agents act controlling phase separation of the blending compounds, and preventing excessive growth of polystyrene domains scattered in the PLA matrix; and this results in blends with good mechanical and thermal resistance.Type: ApplicationFiled: May 16, 2014Publication date: May 12, 2016Applicants: PETROLEO BRASILEIRO S.A. - PETROBRAS, Universidade Federal do Rio Grande do Sul - UFRGSInventors: Vinicius GALHARD GRASSI, Augusto Cesar DE CARVALHO PERES, Marcus Fernando DAL PIZZOL, Joao Manoel DA COSTA, Andreia OSSIG, Cesar LIBERATO PETZHOLD