Patents by Inventor Michal Elizabeth Porter

Michal Elizabeth Porter 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).

  • Amorphous polyester composition and method of making
    Patent number: 11535744
    Abstract: An amorphous polyester or copolyester composition comprises the reaction product of a crystalline or semicrystalline polyester or copolyester, optionally derived from a recycled waste stream, at least one diol or aromatic diacid or an ester of a diacid or a hydroxycarboxylic acid or a lactone or a dianhydride, and a catalyst, wherein the amorphous composition has a weight average molecular weight of at least 10,000 g/mol (polystyrene equivalent molecular weight) as measured by gel permeation chromatography.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: December 27, 2022
    Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, LLC.
    Inventors: Mark Alan Barger, Stephane Costeux, Michal Elizabeth Porter, Patrick Heider
  • Chemically modified polyesters and process for making
    Patent number: 11525045
    Abstract: Chemically modified polyesters, foamable compositions thereof that form low density foams, and methods of making the foamable compositions and foams are disclosed. The compositions comprise an amorphous copolyester, or amorphous co-polyesterpolycarbonate or amorphous co-polyesterpolyether or combination thereof. Additionally, uses for the low density foams are disclosed.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: December 13, 2022
    Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, INC.
    Inventors: Michal Elizabeth Porter, Mark Alan Barger, Yiyong He, Stéphane Costeux, Gerald F Billovits, Wenyi Huang, Edoardo Nicoli
  • AMORPHOUS POLYESTER COMPOSITION AND METHOD OF MAKING
    Publication number: 20200308396
    Abstract: An amorphous polyester or copolyester composition comprises the reaction product of a crystalline or semicrystalline polyester or copolyester, optionally derived from a recycled waste stream, at least one diol or aromatic diacid or an ester of a diacid or a hydroxycarboxylic acid or a lactone or a dianhydride, and a catalyst, wherein the amorphous composition has a weight average molecular weight of at least 10,000 g/mol (polystyrene equivalent molecular weight) as measured by gel permeation chromatography.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Inventors: Mark Alan Barger, Stephane Costeux, Michal Elizabeth Porter, Patrick Heider
  • CHEMICALLY MODIFIED POLYESTERS AND PROCESS FOR MAKING
    Publication number: 20200308363
    Abstract: Chemically modified polyesters, foamable compositions thereof that form low density foams, and methods of making the foamable compositions and foams are disclosed. The compositions comprise an amorphous copolyester, or amorphous co-polyesterpolycarbonate or amorphous co-polyesterpolyether or combination thereof. Additionally, uses for the low density foams are disclosed.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Inventors: Michal Elizabeth Porter, Mark Alan Barger, Yiyong He, Stephane Costeux, Gerald F. Billovits, Wenyi Huang, Edoardo Nicoli
  • Method for producing brominated and halohydrated polymers
    Patent number: 10781271
    Abstract: Conjugated diene polymers such as a styrene-butadiene copolymer are sequentially brominated by reaction with a quaternary ammonium tribromide or quaternary phosphonium tribromide and halohydrated by reaction with an N-haloimide compound. This produces a brominated and halohydrated polymer with very good thermal stability. The product is useful as a flame retardant in a variety of polymer systems.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: September 22, 2020
    Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, INC.
    Inventors: John W. Hull, Jr., Shari Kram, Michal Elizabeth Porter, William G. Stobby
  • METHOD FOR PRODUCING BROMINATED AND HALOHYDRATED POLYMERS
    Publication number: 20200002442
    Abstract: Conjugated diene polymers such as a styrene-butadiene copolymer are sequentially brominated by reaction with a quaternary ammonium tribromide or quaternary phosphonium tribromide and halohydrated by reaction with an N-haloimide compound. This produces a brominated and halohydrated polymer with very good thermal stability. The product is useful as a flame retardant in a variety of polymer systems.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 2, 2020
    Inventors: John W. Hull, JR., Shari Kram, Michal Elizabeth Porter, William G. Stobby
  • Method for producing brominated and halohydrated polymers
    Patent number: 10457751
    Abstract: Conjugated diene polymers such as a styrene-butadiene copolymer are sequentially brominated by reaction with a quaternary ammonium tribromide or quaternary phosphonium tribromide and halohydrated by reaction with an N-haloimide compound. This produces a brominated and halohydrated polymer with very good thermal stability. The product is useful as a flame retardant in a variety of polymer systems.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: October 29, 2019
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: John W. Hull, Jr., Shari Kram, Michal Elizabeth Porter, William G. Stobby
  • METHOD FOR PRODUCING BROMINATED AND HALOHYDRATED POLYMERS
    Publication number: 20180002455
    Abstract: Conjugated diene polymers such as a styrene-butadiene copolymer are sequentially brominated by reaction with a quaternary ammonium tribromide or quaternary phosphonium tribromide and halohydrated by reaction with an N-haloimide compound. This produces a brominated and halohydrated polymer with very good thermal stability. The product is useful as a flame retardant in a variety of polymer systems.
    Type: Application
    Filed: January 27, 2016
    Publication date: January 4, 2018
    Applicant: Dow Global Technologies LLC
    Inventors: John W. Hull, JR., Shari Kram, Michal Elizabeth Porter, William G. Stobby