Patents by Inventor Stuart ROWAN

Stuart ROWAN 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).

  • METHOD FOR PRODUCTION OF CELLULOSE NANOCRYSTALS FROM MISCANTHUS GIGANTEUS AND COMPOSITES THEREFROM
    Publication number: 20210139613
    Abstract: Methods for isolating cellulose nanocrystals (CNCs) from the plant Miscanthus Giganteus (MxG). Impressive yields are obtained through a combination of processing steps including base hydrolysis, bleaching and acid hydrolysis. MxG-CNCs are produced having high aspect ratios, are biorenewable and can be used for a wide range of applications such as nanofillers in composites. MxG-CNC-containing composites are also disclosed.
    Type: Application
    Filed: September 4, 2020
    Publication date: May 13, 2021
    Inventors: Stuart Rowan, Mo Hunsen, Amanda Way
  • Method for production of cellulose nanocrystals from and composites therefrom
    Patent number: 10793647
    Abstract: Cellulose nanocrystals (CNCs) from the plant Miscanthus Giganteus (MxG) and a matrix material are present in a composite composition. Impressive yields of MxG-CNCs are obtained through a combination of processing steps including base hydrolysis, bleaching and acid hydrolysis. MxG-CNCs are produced having high aspect ratios, are biorenewable and can be used for a wide range of applications such as nanofillers in composites.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 6, 2020
    Assignee: CASE WESTERN RESERVE UNIVERSITY
    Inventors: Stuart Rowan, Mo Hunsen, Amanda Way
  • Polymer cellulose nanocrystal composite aerogels
    Patent number: 10150848
    Abstract: Composite materials including cellulose nanocrystals incorporated into a polymer aerogel scaffold, wherein the cellulose nanocrystals serve as a reinforcement agent to result in the formation of less dense aerogels, improve the tensile mechanical properties of aerogel films, and reduce aerogel shrinkage upon thermal exposure. After gelation, the gel is dried via a suitable method such as supercritical CO2 extraction, freeze drying or other method, to produce the CNC/polymer composite aerogel. Properties of the composite aerogel can be tailored via surface modification of the cellulose nanocrystals as well as through the backbone structure of the polymer.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: December 11, 2018
    Assignees: CASE WESTERN RESERVE UNIVERSITY, THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE ADMINISTRATOR OF NASA
    Inventors: Baochau Nguyen, Mary Ann Meador, Stuart Rowan, Elvis Cudjoe
  • Method for Production of Cellulose Nanocrystals from Miscanthus Giganteus and Composites Therefrom
    Publication number: 20180265598
    Abstract: Methods for isolating cellulose nanocrystals (CNCs) from the plant Miscanthus Giganteus (MxG). Impressive yields are obtained through a combination of processing steps including base hydrolysis, bleaching and acid hydrolysis. MxG-CNCs are produced having high aspect ratios, are biorenewable and can be used for a wide range of applications such as nanofillers in composites. MxG-CNC-containing composites are also disclosed.
    Type: Application
    Filed: May 21, 2018
    Publication date: September 20, 2018
    Inventors: Stuart Rowan, Mo Hunsen, Amanda Way
  • Method for production of cellulose nanocrystals from and composites therefrom
    Patent number: 10000578
    Abstract: Methods for isolating cellulose nanocrystals (CNCs) from the plant Miscanthus Giganteus (MxG). Impressive yields are obtained through a combination of processing steps including base hydrolysis, bleaching and acid hydrolysis. MxG-CNCs are produced having high aspect ratios, are biorenewable and can be used for a wide range of applications such as nanofillers in composites. MxG-CNC-containing composites are also disclosed.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: June 19, 2018
    Assignee: Case Western Reserve University
    Inventors: Stuart Rowan, Mo Hunsen, Amanda Way
  • Method for Production of Cellulose Nanocrystals from Miscanthus Giganteus and Composites Therefrom
    Publication number: 20160319043
    Abstract: Methods for isolating cellulose nanocrystals (CNCs) from the plant Miscanthus Giganteus (MxG). Impressive yields are obtained through a combination of processing steps including base hydrolysis, bleaching and acid hydrolysis. MxG-CNCs are produced having high aspect ratios, are biorenewable and can be used for a wide range of applications such as nanofillers in composites. MxG-CNC-containing composites are also disclosed.
    Type: Application
    Filed: December 19, 2014
    Publication date: November 3, 2016
    Inventors: Stuart ROWAN, Mo HUNSEN, Amanda WAY
  • POLYMER CELLULOSE NANOCRYSTAL COMPOSITE AEROGELS
    Publication number: 20160032073
    Abstract: Composite materials including cellulose nanocrystals incorporated into a polymer aerogel scaffold, wherein the cellulose nanocrystals serve as a reinforcement agent to result in the formation of less dense aerogels, improve the tensile mechanical properties of aerogel films, and reduce aerogel shrinkage upon thermal exposure. After gelation, the gel is dried via a suitable method such as supercritical CO2 extraction, freeze drying or other method, to produce the CNC/polymer composite aerogel. Properties of the composite aerogel can be tailored via surface modification of the cellulose nanocrystals as well as through the backbone structure of the polymer.
    Type: Application
    Filed: July 31, 2015
    Publication date: February 4, 2016
    Inventors: Baochau NGUYEN, Mary Ann MEADOR, Stuart ROWAN, Elvis CUDJOE