Patents by Inventor Augusto Cesar Esteves

Augusto Cesar Esteves 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).

  • POLYETHYLENE FOR INJECTION STRETCH BLOW MOLDING AND METHODS THEREOF
    Publication number: 20220267488
    Abstract: A polyethylene-based resin composition for injection stretch blow molding may include a copolymer of ethylene and one or more C4-C8 ?-olefins. The composition may have a density, according to ASTM D792, that ranges from about 0.946 to 0.960 g/cm3 and a melt index (15), as measured according to ASTM D 1238 at 190° C. under a 5.0 kg load, ranging from about 5.0 to 50 g/10 min. A method of producing an article may include injection molding the composition to give a preform; and stretch-blowing the preform to provide the article.
    Type: Application
    Filed: July 16, 2020
    Publication date: August 25, 2022
    Applicants: Braskem S.A., SERVIÇO NACIONAL DE APRENDIZAGEM INDUSTRIAL DEPARTAMENTO REGIONAL DO RIO GRANDE DO SUL.
    Inventors: Leonardo Souza Bento, Augusto Cesar Esteves, André Luís dos Santos da Silva, Marcelo Farah
  • Polyolefin compositions with improved soft touch properties
    Patent number: 11220592
    Abstract: Compositions may include a tactile polymer composition prepared from a mixture of polyolefin and a rubber component, wherein the mixture is prepared in a post-reactor process, and wherein the tactile polymer composition has a complex viscosity at 0.10 rad/s according to ASTM D4440 in the range of 1,000 to 40,000 Pa·s. Methods may include preparing a tactile polymer composition by combining a mixture of polyolefin and a rubber component at elevated temperature to produce a blended polymer composition; wherein the tactile polymer composition has a complex viscosity at 0.10 rad/s according to ASTM D4440 in the range of 1,000 to 40,000 Pa·s.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: January 11, 2022
    Assignee: Braskem S.A.
    Inventors: Leonardo Souza Bento, Augusto Cesar Esteves
  • POLYOLEFIN COMPOSITIONS WITH IMPROVED SOFT TOUCH PROPERTIES
    Publication number: 20190367712
    Abstract: Compositions may include a tactile polymer composition prepared from a mixture of polyolefin and a rubber component, wherein the mixture is prepared in a post-reactor process, and wherein the tactile polymer composition has a complex viscosity at 0.10 rad/s according to ASTM D4440 in the range of 1,000 to 40,000 Pa·s. Methods may include preparing a tactile polymer composition by combining a mixture of polyolefin and a rubber component at elevated temperature to produce a blended polymer composition; wherein the tactile polymer composition has a complex viscosity at 0.10 rad/s according to ASTM D4440 in the range of 1,000 to 40,000 Pa·s.
    Type: Application
    Filed: May 6, 2019
    Publication date: December 5, 2019
    Applicant: Braskem S.A.
    Inventors: Leonardo Souza Bento, Augusto Cesar Esteves