Patents by Inventor David Flosser

David Flosser 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).

  • Process for preparing epoxy resins
    Patent number: 10899873
    Abstract: An epoxy oligomerization catalyst can be employed to prepare an epoxy resin employing a method including admixing a first epoxy resin having a first epoxy equivalent weight of from about 100 to about 600 with a diphenolic compound, and a catalyst, thereby forming a second epoxy resin having a second epoxy equivalent weight of from about 200 to about 10,000; wherein the catalyst is a guanidinium catalyst. The second equivalent weight is greater than the first equivalent weight.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: January 26, 2021
    Assignee: HEXION INC.
    Inventors: David Flosser, Jerry R. Hite, Larry Steven Corley, Bedri Erdem
  • PROCESS FOR PREPARING EPOXY RESINS
    Publication number: 20190077906
    Abstract: An epoxy oligomerization catalyst can be employed to prepare an epoxy resin employing a method including admixing a first epoxy resin having a first epoxy equivalent weight of from about 100 to about 600 with a diphenolic compound, and a catalyst, thereby forming a second epoxy resin having a second epoxy equivalent weight of from about 200 to about 10,000; wherein the catalyst is a guanidinium catalyst. The second equivalent weight is greater than the first equivalent weight.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 14, 2019
    Inventors: David FLOSSER, Jerry R. HITE, Larry Steven CORLEY, Bedri ERDEM
  • Curing agent for epoxy coatings
    Patent number: 10119046
    Abstract: Compositions, methods, and coating composition using a curing agent are provided herein. In one embodiment, a curing agent for epoxy resins may be prepared using a formulation including: (a) an adduct of: (i) a diglycidyl ether of a bisphenol, and (ii) a first polyamine; (b) a second polyamine; and (c) water; wherein the composition has an amine hydrogen equivalent weight, based on solids, of less than or equal to 105.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 6, 2018
    Assignee: HEXION INC.
    Inventors: David Flosser, Patricia Garcia, Larry Steven Corley, Bedri Erdem, Lucy Phan
  • CURING AGENT FOR EPOXY COATINGS
    Publication number: 20170137664
    Abstract: Compositions, methods, and coating composition using a curing agent are provided herein. In one embodiment, a curing agent for epoxy resins may be prepared using a formulation including: (a) an adduct of: (i) a diglycidyl ether of a bisphenol, and (ii) a first polyamine; (b) a second polyamine; and (c) water; wherein the composition has an amine hydrogen equivalent weight, based on solids, of less than or equal to 105.
    Type: Application
    Filed: December 16, 2016
    Publication date: May 18, 2017
    Inventors: David Flosser, Patricia Garcia, Larry Steven Corley, Bedri Erdem, Lucy Phan
  • Curing agent for epoxy coatings
    Patent number: 9550912
    Abstract: Compositions, methods, and coating composition using a curing agent are provided herein. In one embodiment, a curing agent for epoxy resins may be prepared using a formulation including: (a) an adduct of: (i) a diglycidyl ether of a bisphenol, and (ii) a first polyamine; (b) a second polyamine; and (c) water; wherein the composition has an amine hydrogen equivalent weight, based on solids, of less than or equal to 105.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: January 24, 2017
    Assignee: HEXION INC
    Inventors: David Flosser, Patricia Garcia, Larry Steven Corley, Bedri Erdem, Lucy Phan
  • CURING AGENT FOR EPOXY COATINGS
    Publication number: 20160177125
    Abstract: Compositions, methods, and coating composition using a curing agent are provided herein. In one embodiment, a curing agent for epoxy resins may be prepared using a formulation including: (a) an adduct of: (i) a diglycidyl ether of a bisphenol, and (ii) a first polyamine; (b) a second polyamine; and (c) water; wherein the composition has an amine hydrogen equivalent weight, based on solids, of less than or equal to 105.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 23, 2016
    Inventors: David Flosser, Patricia Garcia, Larry Steven Corley, Bedri Erdem, Lucy Phan