Patents by Inventor Alexandre da Luz

Alexandre da Luz 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).

  • Polyolefins having improved dimensional stability in three-dimensional printing, articles formed therefrom, and methods thereof
    Patent number: 11680158
    Abstract: A polymer composition suitable for manufacturing of isotropic three-dimensional printed articles, the composition including: a matrix phase including a propylene-based polymer or copolymer; and a dispersed phase in the matrix phase, the dispersed phase including an ethylene-based copolymer having a C3-C12 comonomer, wherein the dispersed phase has a different composition than the matrix phase, wherein the matrix phase has a crystallization half-time of less than 60 minutes.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: June 20, 2023
    Assignee: Braskem S.A.
    Inventors: Jason Clark, Leonardo Ito, Alexandre da Luz
  • POWDER FLOWABILITY IMPROVEMENT
    Publication number: 20220056280
    Abstract: A method of manufacturing an article using a powder bed fusion technique including depositing a first layer of a dry blend mixture on to a target surface, the dry blend mixture comprising a thermoplastic polymer powder and a stearate additive in a range of 2,000 ppm to 20,000 ppm; directing energy to the first layer of the dry blend mixture so as to melt and sinter at least portion of the first layer of the dry blend mixture; and successively depositing layers of the dry blend mixture and directing energy to the deposited layers so as to melt and sinter at least a portion of the successive layers to a prior layer to perform a layer-by-layer process until a three-dimensional structure is obtained.
    Type: Application
    Filed: August 23, 2021
    Publication date: February 24, 2022
    Applicant: Braskem S.A.
    Inventors: Alexandre da Luz, Juliana Breda Soares, Dillan Passos Bernardes
  • POLYOLEFINS HAVING IMPROVED DIMENSIONAL STABILITY IN THREE-DIMENSIONAL PRINTING, ARTICLES FORMED THEREFROM, AND METHODS THEREOF
    Publication number: 20200332103
    Abstract: A polymer composition suitable for manufacturing of isotropic three-dimensional printed articles, the composition including: a matrix phase including a propylene-based polymer or copolymer; and a dispersed phase in the matrix phase, the dispersed phase including an ethylene-based copolymer having a C3-C12 comonomer, wherein the dispersed phase has a different composition than the matrix phase, wherein the matrix phase has a crystallization half-time of less than 60 minutes.
    Type: Application
    Filed: November 13, 2018
    Publication date: October 22, 2020
    Applicant: Braskem S.A.
    Inventors: Jason Clark, Leonardo Ito, Alexandre da Luz