Patents by Inventor Lucas Dos Santos Freire

Lucas Dos Santos Freire 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).

  • SILICA-GRAPHENIC CARBON COMPOSITE PARTICLES AND ELASTOMERIC MATERIALS INCLUDING SUCH PARTICLES
    Publication number: 20230416534
    Abstract: Composite particles may be produced by drying slurries containing silica particles and graphenic carbon particles in a liquid carrier. Elastomeric formulations comprising a base elastomer composition and the silica-graphenic carbon composite particles are also disclosed. The formulations possess favorable properties such as increased stiffness and are useful for many applications such as tire treads.
    Type: Application
    Filed: September 1, 2023
    Publication date: December 28, 2023
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: LUCAS DOS SANTOS FREIRE, QI DING, CYNTHIA KUTCHKO, SHUYANG PAN, NATHAN J. SILVERNAIL
  • Silica-graphenic carbon composite particles and elastomeric materials including such particles
    Patent number: 11781020
    Abstract: Composite particles may be produced by drying slurries containing silica particles and graphenic carbon particles in a liquid carrier. Elastomeric formulations comprising a base elastomer composition and the silica-graphenic carbon composite particles are also disclosed. The formulations possess favorable properties such as increased stiffness and are useful for many applications such as tire treads.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: October 10, 2023
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Lucas Dos Santos Freire, Qi Ding, Cynthia Kutchko, Shuyang Pan, Nathan J. Silvernail
  • Method for preparing modified filler, compositions and articles containing same
    Patent number: 11708475
    Abstract: Provided is a method for preparing a modified filler. The method includes in sequence providing an acidified aqueous slurry of an untreated inorganic filler which has not been previously dried; an emulsifier material; and a hydrophobating agent having the following structural formula (I): Ra?M-X(4?a)??(I) wherein: R is C6 to C22 alkyl, M is silicon, titanium or zirconium, X is OR? or halogen, R? is C1 to C4 alkyl, and a is 1; washing and/or filtering the acidified aqueous slurry to obtain a modified filler; and, optionally, drying the modified filler. Polymeric compositions and articles also are provided.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: July 25, 2023
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Lucas Dos Santos Freire, Sik Boen, Nathan J. Silvernail
  • METHOD FOR PREPARING MODIFIED FILLER, COMPOSITIONS AND ARTICLES CONTAINING SAME
    Publication number: 20230033274
    Abstract: Provided is a method for preparing a modified filler. The method includes in sequence providing an acidified aqueous slurry of an untreated inorganic filler which has not been previously dried; an emulsifier material; and a hydrophobating agent having the following structural formula (I): (I) Ra-M-X(4-a) wherein: R is C6 to C22 alkyl, M is silicon, titanium or zirconium, X is OR? or N halogen, R? is C1 to C4 alkyl, and a is 1; washing and/or filtering the acidified aqueous slurry to obtain a modified filler, and, optionally, drying the modified filler. Polymeric compositions and articles also are provided.
    Type: Application
    Filed: December 17, 2020
    Publication date: February 2, 2023
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Lucas Dos Santos Freire, Sik Boen, Nathan J. Silvernail
  • Method for Preparing Modified Filler, Compositions and Articles Containing Same
    Publication number: 20210189096
    Abstract: Provided is a method for preparing a modified filler. The method includes in sequence providing an acidified aqueous slurry of an untreated inorganic filler which has not been previously dried; an emulsifier material; and a hydrophobating agent having the following structural formula (I): Ra?M-X(4?a)??(I) wherein: R is C6 to C22 alkyl, M is silicon, titanium or zirconium, X is OR? or halogen, R? is C1 to C4 alkyl, and a is 1; washing and/or filtering the acidified aqueous slurry to obtain a modified filler; and, optionally, drying the modified filler. Polymeric compositions and articles also are provided.
    Type: Application
    Filed: December 15, 2020
    Publication date: June 24, 2021
    Inventors: Lucas Dos Santos Freire, Sik Boen, Nathan J. Silvernail
  • Silica-Graphenic Carbon Composite Particles and Elastomeric Materials Including Such Particles
    Publication number: 20210095131
    Abstract: Composite particles may be produced by drying slurries containing silica particles and graphenic carbon particles in a liquid carrier. Elastomeric formulations comprising a base elastomer composition and the silica-graphenic carbon composite particles are also disclosed. The formulations possess favorable properties such as increased stiffness and are useful for many applications such as tire treads.
    Type: Application
    Filed: August 10, 2020
    Publication date: April 1, 2021
    Inventors: Lucas Dos Santos Freire, Qi Ding, Cynthia Kutchko, Shuyang Pan, Nathan J. Silvernail