Patents by Inventor Robert E. Hefner

Robert E. Hefner 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).

  • Patent number: 9920168
    Abstract: A polymer of intrinsic microporosity having a repeating subunit including a spirobisindane imide moiety as illustrated below.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: March 20, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Robert E. Hefner, Jr., Brian L. Cramm, Ian A. Tomlinson, Lauren M. Huffman, Abhishek Roy
  • Publication number: 20180066103
    Abstract: A copolymer including a repeating unit represented by Formula I: wherein: L is a divalent hydrocarbon group comprising from 1 to 12 carbon atoms; and L? is optional and when present is represented by Formula II: wherein: Y, Y? and Y? if present, are independently selected from: a carboxylic acid, sulfonic acid, phosphorous acid and phosphoric acid and their corresponding salt or ester; imino, amide, nitrile, hydrogen, hydroxyl and alkyl comprising from 1 to 6 carbon atoms; and A, A? and A? if present, are independently selected from an arylene moiety, with the proviso one or both Y? and A? may not be present.
    Type: Application
    Filed: May 16, 2016
    Publication date: March 8, 2018
    Applicant: Dow Global Technologies LLC
    Inventors: Robert E. Hefner, JR., Brian L. Cramm
  • Publication number: 20170369652
    Abstract: A polymer of intrinsic microporosity having a repeating subunit including both a spirobisindane imide moiety and an amido (lactam) moiety.
    Type: Application
    Filed: February 26, 2016
    Publication date: December 28, 2017
    Inventors: Robert E. Hefner, Jr., Brian L. Cramm, Ian A. Tomlinson, Lauren M. Huffman, Abhishek Roy
  • Publication number: 20170174793
    Abstract: The present invention relates to a compound which is a di- and/or a tristyrylphenol monoglycidyl ether adduct of the compound of Formula I: where m is from 1 to 60. The compound of the present invention is useful as an open time additive in coatings formulations.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 22, 2017
    Inventors: David J. Brennan, Gregoire Cardoen, Jonathan DeRocher, Robert E. Hefner, JR., Antony K. Van Dyk, Tianlan Zhang
  • Patent number: 9656936
    Abstract: Disclosed herein are compositions and methods related to the hydroformylation of cyclododecatriene to form cyclododecatriene trialdehyde, and the conversion of the trialdehyde to the polyphenols of Formula 1: where R, m p and Q are as defined herein. Curable compositions comprising compounds of Formula 1, including powder coating compositions, and methods of curing the compositions are also disclosed.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: May 23, 2017
    Inventors: Erich J. Molitor, Robert E. Hefner, Jr.
  • Publication number: 20170137358
    Abstract: Disclosed herein are compositions and methods related to the hydroformylation of cyclododecatriene to form cyclododecatriene trialdehyde, and the conversion of the trialdehyde to the polyphenols of Formula 1: where R, m p and Q are as defined herein. Curable compositions comprising compounds of Formula 1, including powder coating compositions, and methods of curing the compositions are also disclosed.
    Type: Application
    Filed: January 31, 2017
    Publication date: May 18, 2017
    Inventors: Erich J. Molitor, Robert E. Hefner, JR.
  • Publication number: 20170107189
    Abstract: The present invention relates to a compound having the following structure: where R, R1, and m are as defined herein. The compound is useful as a precursor to a surfactant with a low hydrophilic-lipophylic balance (HLB), which can be used to increase open time for coatings.
    Type: Application
    Filed: October 13, 2016
    Publication date: April 20, 2017
    Inventors: David J. Brennan, Gregoire Cardoen, Robert E. Hefner, JR., Antony K. Van Dyk
  • Publication number: 20170088663
    Abstract: A process for preparing an aliphatic or cycloaliphatic epoxy resin composition including the steps of: (I) reacting a mixture of the following components: (a) an aliphatic or cycloaliphatic hydroxyl-containing material, (b) an epihalohydrin, (c) a stoichiometric excess of a base compound or basic acting substance, (d) a catalyst, and (e) optionally, a solvent; wherein the reacting step (I) is carried out under reaction conditions sufficient to form a crude aliphatic or cycloaliphatic epoxy resin composition product in the resultant reaction mixture; (II) neutralizing the resultant reaction mixture of step (I) containing the crude aliphatic or cycloaliphatic epoxy resin composition product with a phosphate neutralizing agent sufficient to partially neutralize the base or basic acting substance and to form a neutralized fluid medium containing aliphatic or cycloaliphatic epoxy resin composition product; (III) removing at least a portion of unreacted epihalohydrin from the reaction mixture of step (II); and (IV)
    Type: Application
    Filed: February 26, 2015
    Publication date: March 30, 2017
    Inventors: Robert E. Hefner, Daryoosh Beigzadeh, David J. Couling, Robert W. Coyle, David A. Carr
  • Patent number: 9598339
    Abstract: Disclosed herein are compositions and methods related to the hydroformylation of cyclododecatriene to form cyclododecatriene trialdehyde, and the conversion of the trialdehyde to the polyphenols of Formula 1: where R, m p and Q are as defined herein. Curable compositions comprising compounds of Formula 1, including powder coating compositions, and methods of curing the compositions are also disclosed.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: March 21, 2017
    Inventors: Erich J. Molitor, Robert E. Hefner, Jr.
  • Publication number: 20170022134
    Abstract: Disclosed herein are compositions and methods related to the hydroformylation of cyclododecatriene to form cyclododecatriene trialdehyde, and the conversion of the trialdehyde to the polyphenols of Formula 1: where R, m p and Q are as defined herein. Curable compositions comprising compounds of Formula 1, including powder coating compositions, and methods of curing the compositions are also disclosed.
    Type: Application
    Filed: March 23, 2016
    Publication date: January 26, 2017
    Inventors: Erich J. Molitor, Robert E. Hefner
  • Patent number: 9487615
    Abstract: Polycyanates of the formula: where R, m, Q, p and Z are as defined herein. Methods of curing said polycyanates and methods of using said polycyanates to provide high Tg thermoset products.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: November 8, 2016
    Inventors: Robert E. Hefner, Jr., Erich J. Molitor
  • Patent number: 9487617
    Abstract: Polyglycidyl ethers of the formula: where R, m, Q, p and Z are as defined here. Methods of forming said polyglycidyl ethers and methods of using said polyglycidyl ethers to make epoxy resin oligomers and polymers, including powder coatings.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: November 8, 2016
    Inventors: Robert E. Hefner, Jr., Erich J. Molitor
  • Patent number: 9464224
    Abstract: A transformative wavelength conversion medium is provided, comprising: a phosphor; and, a curable liquid component, wherein the curable liquid component, comprises: an aliphatic resin component, wherein the aliphatic resin component has an average of two epoxide groups per molecule; and, a curing agent; wherein the curable liquid component contains less than 0.5 wt % of monoepoxide molecules (based on the total weight of the aliphatic resin component); and, wherein the curable liquid component is a liquid at 25° C. and atmospheric pressure; and, wherein the phosphor is dispersed in the curable liquid component.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: October 11, 2016
    Assignees: Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLC
    Inventors: Kishori Deshpande, Robert E. Hefner, Jr., Peter Trefonas, Maurice J. Marks, Jong Keun Park, Jieqian Zhang
  • Patent number: 9382472
    Abstract: A transformative wavelength conversion medium is provided, comprising: a phosphor; and, a curable liquid component, wherein the curable liquid component, comprises: an aliphatic resin component, wherein the aliphatic resin component has an average of at least two epoxide groups per molecule; and, a curing agent; wherein the curable liquid component contains less than 0.5 wt % of monoepoxide molecules (based on the total weight of the aliphatic resin component); wherein the curable liquid component contains 1 to 90 wt % of polyepoxide molecules containing at least three epoxide groups per molecule (based on the total weight of the aliphatic resin component); and, wherein the curable liquid component is a liquid at 25° C. and atmospheric pressure; wherein the phosphor is dispersed in the curable liquid component.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: July 5, 2016
    Assignees: Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLC
    Inventors: Robert E. Hefner, Jr., Kishori Deshpande, Maurice J. Marks, Peter Trefonas, Jong Keun Park, Jieqian Zhang
  • Patent number: 9371414
    Abstract: An epoxy resin adduct including the reaction product of (A) at least one polyfunctional aliphatic or cycloaliphatic epoxy resin; and (B) at least one reactive compound; wherein the polyfunctional aliphatic or cycloaliphatic epoxy resin is isolated from the epoxy resin formed by the epoxidation of (i) an aliphatic or cycloaliphatic hydroxyl-containing material using (ii) an epi-halohydrin, (iii) a basic-acting substance, (iv) a non-Lewis acid catalyst, and (v) optionally one or more solvents; and wherein the re-active compound (B) comprises one or more compounds having two or more reactive hydrogen atoms per molecule and the reactive hydrogen atoms are reactive with epoxide groups. A curable epoxy resin composition includes the adduct described above. A cured epoxy resin is prepared by a process of curing the curable epoxy resin composition containing the adduct described above.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: June 21, 2016
    Assignee: BLUE CUBE IP LLC
    Inventor: Robert E. Hefner, Jr.
  • Patent number: 9340702
    Abstract: A curable resin composition including (I) at least one thermoset resin composition; and (II) at least one hardener; wherein the powder coating has a balance of properties including a combination of high glass transition temperature and low water absorption.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: May 17, 2016
    Assignee: BLUE CUBE IP LLC
    Inventors: Guillaume Metral, Bernd Hoevel, Joseph Gan, Michael J. Mullins, Robert E. Hefner, Jr.
  • Patent number: 9328193
    Abstract: Disclosed herein are compositions and methods related to the hydroformylation of cyclododecatriene to form cyclododecatriene trialdehyde, and the conversion of the trialdehyde to the polyphenols of Formula 1: where R, m p and Q are as defined herein. Curable compositions comprising compounds of Formula 1, including powder coating compositions, and methods of curing the compositions are also disclosed.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: May 3, 2016
    Inventors: Erich J. Molitor, Robert E. Hefner, Jr.
  • Patent number: 9284434
    Abstract: A re-epoxidized polyfunctional epoxy resin composition comprising the reaction product of: (I) an epoxidized polyfunctional epoxy resin oligomeric composition comprising a polyfunctional aliphatic or cycloaliphatic epoxy resin which has been isolated from an epoxy resin product formed as a result of an epoxidation process comprising the reaction of: (i) an aliphatic or cycloaliphatic hydroxyl-containing material; (ii) an epihalohydrin, (iii) a basic-acting substance, in the presence of (iv) a non-Lewis acid catalyst; and (v) optionally, one or more solvents; (II) an epihalohydrin; (III) a basic acting substance; in the presence of (IV) a non-Lewis acid catalyst; and (V) optionally, one or more solvents. A curable epoxy resin composition of the re-epoxidized polyfunctional epoxy resin composition and a thermoset of the curable composition is also disclosed.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: March 15, 2016
    Assignee: BLUE CUBE IP LLC
    Inventor: Robert E. Hefner, Jr.
  • Patent number: 9255177
    Abstract: A hybrid epoxy resin adduct comprising, consisting of, or consisting essentially of the reaction product of: (A) a material selected from the group consisting of a hybrid polyfunctional aliphatic epoxy resin, a hybrid cycloaliphatic epoxy resin, and combinations thereof; wherein (A) is formed by contacting: (a) a hydroxyl-containing material selected from the group consisting of an aliphatic hydroxyl-containing material, a cycloaliphatic hydroxyl-containing material, and combinations thereof; (b) a material selected from the group consisting of a monoglycidyl ether-containing material, a diglycidyl ether-containing material, and combinations thereof wherein (b) is prepared from a different precursor than (a); (c) an epihalohydrin; (d) a basic acting substance; (e) a non-Lewis acid catalyst; and (f) optionally, a solvent and (B) at least one epoxide reactive compound comprising one or more compounds having two or more epoxide-reactive hydrogen atoms per molecule, is disclosed.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: February 9, 2016
    Assignee: Blue Cube IP LLC
    Inventor: Robert E. Hefner, Jr.
  • Patent number: 9169352
    Abstract: Aromatic dicyanate compounds which comprise aliphatic moieties having at least about six carbon atoms and resins and thermoset products based on these compounds.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: October 27, 2015
    Assignee: Blue Cube IP LLC
    Inventors: Michael J. Mullins, Robert E. Hefner, Jr., Ulrich Herold, Mark B. Wilson