Patents by Inventor Aaron A. RACHFORD

Aaron A. RACHFORD 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: 11746184
    Abstract: Disclosed is a bis-imide compound comprising two or more aryl moieties substituted with ethynyl moieties and the two or more aryl moieties each having one or more polar substituents. Further disclosed is a polymer composition comprising a copolymer polymerized from a monomer mixture of (a) one or more first monomers comprising a bis-imide compound comprising two or more aryl moieties substituted with ethynyl moieties and the two or more aryl moieties each having one or more polar substituents; and (b) one or more second monomers comprising two or more cyclopentadienone moieties. The polymer compositions exhibit favorable properties for use in electronics and displays applications.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: September 5, 2023
    Assignee: ROHM AND HAAS ELECTRONIC MATERIALS LLC
    Inventors: Aaron A. Rachford, Charles R. Kinzie, Michael K. Gallagher, Christopher Gilmore, Young-Seok Kim
  • Patent number: 11114617
    Abstract: Provided is a composition comprising a compound having structure (I) wherein each of A1, A2, A3, A4, A5, A6, A7, and A8 is independently CR12 or N; wherein one to four of A1, A2, A3, A4, A5, A6, A7, and A8 are N; wherein J1 is C or Si; wherein J2 is C(R13)n, O, (C(R13)n)2, S, NR13, or Se; wherein n is 1 or 2; wherein each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, and R13 is independently H, deuterium, or an organic group. Also provided is a method of making the composition, a method of making an organic light-emitting diode using the composition, and an organic light-emitting diode made by that method.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: September 7, 2021
    Assignees: Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLC
    Inventors: Laura Havens, Sukrit Mukhopadhyay, David S. Laitar, David D. Devore, Aaron A. Rachford, Erich J. Molitor
  • Publication number: 20210147616
    Abstract: Disclosed is a bis-imide compound comprising two or more aryl moieties substituted with ethynyl moieties and the two or more aryl moieties each having one or more polar substituents. Further disclosed is a polymer composition comprising a copolymer polymerized from a monomer mixture of (a) one or more first monomers comprising a bis-imide compound comprising two or more aryl moieties substituted with ethynyl moieties and the two or more aryl moieties each having one or more polar substituents; and (b) one or more second monomers comprising two or more cyclopentadienone moieties. The polymer compositions exhibit favorable properties for use in electronics and displays applications.
    Type: Application
    Filed: November 4, 2020
    Publication date: May 20, 2021
    Inventors: Aaron A. Rachford, Charles R. Kinzie, Michael K. Gallagher, Christopher Gilmore, Young-Seok Kim
  • Publication number: 20210020837
    Abstract: Provided is a composition comprising a compound having structure (I) wherein each of A1, A2, A3, A4, A5, A6, A7, and A8 is independently CR12 or N; wherein one to four of A1, A2, A3, A4, A5, A6, A7, and A8 are N; wherein J1 is C or Si; wherein J2 is C(R13)n, O, (C(R13)n)2, S, NR13, or Se; wherein n is 1 or 2; wherein each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, and R13 is independently H, deuterium, or an organic group. Also provided is a method of making the composition, a method of making an organic light-emitting diode using the composition, and an organic light-emitting diode made by that method.
    Type: Application
    Filed: August 11, 2017
    Publication date: January 21, 2021
    Inventors: Laura HAVENS, Sukrit Mukhopadhyay, David S. Laitar, David D. Devore, Aaron A. Rachford, Erich J. Moiitor
  • Patent number: 10794866
    Abstract: Acoustic wave sensors comprise: a piezoelectric layer, first and second electrodes arranged with the piezoelectric layer in a piezoelectric transducer circuit; and a polymeric sensing layer for adsorbing a gas-phase analyte, the adsorption of which analyte causes a change in resonant frequency of the piezoelectric transducer circuit, wherein the polymeric sensing layer comprises: (a) a polymer chosen from substituted or unsubstituted: polyarylenes comprising the reaction product of monomers comprising a first monomer comprising an aromatic acetylene group and a second monomer comprising a cyclopentadienone group; polyamides; polypyrazoles; or novolacs; or a cured product thereof; (b) a polymer chosen from substituted or unsubstituted: polyamic acids; or polyamic acid-polyimide copolymers; (c) a polymer formed from one or more monomers comprising a monomer comprising a polar group-substituted arylcyclobutene group, or a cured product thereof; or (d) a polymer comprising polymerized units of a monomer chosen fr
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: October 6, 2020
    Assignees: Rohm and Haas Electronic Materials LLC, Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Christopher Gilmore, Aaron A. Rachford, Hee Jae Yoon, Jaclyn Murphy, Peter Trefonas, III, Deyan Wang
  • Publication number: 20190219543
    Abstract: Acoustic wave sensors comprise: a piezoelectric layer, first and second electrodes arranged with the piezoelectric layer in a piezoelectric transducer circuit; and a polymeric sensing layer for adsorbing a gas-phase analyte, the adsorption of which analyte causes a change in resonant frequency of the piezoelectric transducer circuit, wherein the polymeric sensing layer comprises: (a) a polymer chosen from substituted or unsubstituted: polyarylenes comprising the reaction product of monomers comprising a first monomer comprising an aromatic acetylene group and a second monomer comprising a cyclopentadienone group; polyamides; polypyrazoles; or novolacs; or a cured product thereof; (b) a polymer chosen from substituted or unsubstituted: polyamic acids; or polyamic acid-polyimide copolymers; (c) a polymer formed from one or more monomers comprising a monomer comprising a polar group-substituted arylcyclobutene group, or a cured product thereof; or (d) a polymer comprising polymerized units of a monomer chosen fr
    Type: Application
    Filed: January 8, 2019
    Publication date: July 18, 2019
    Inventors: Christopher GILMORE, Aaron A. Rachford, Hee Jae Yoon, Jaclyn Murphy, Peter Trefonas, III, Deyan Wang
  • Patent number: 10329483
    Abstract: The present disclosure provides a composition comprising at least one compound selected from the group consisting of Compound 1, Compound 2, and combinations thereof, as shown below, and described herein: wherein, for Compound 1 and Compound 2, independently, R1 and R2 each independently is selected from the group consisting of hydrogen, a substituted alkyl, an unsubstituted alkyl, a substituted heteroalkyl, an unsubstituted heteroalkyl, a substituted aryl, an unsubstituted aryl, a substituted heteroaryl and an unsubstituted heteroaryl; wherein, for Compound 1 and Compound 2, independently, the Component A is selected from the group consisting of Group a) through Group h): wherein Group a) through Group h) are described herein.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: June 25, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Kaitlyn Gray, Aaron Rachford, David Laitar, Sukrit Mukhopadhyay, Robert Froese
  • Publication number: 20180162967
    Abstract: Polyarylene oligomer compositions capable of curing at lower temperatures than conventional polyarylene oligomers are useful in forming dielectric material layers in electronics applications.
    Type: Application
    Filed: October 18, 2017
    Publication date: June 14, 2018
    Inventors: Christopher Gilmore, Aaron A. Rachford, Jieqian Zhang, Ping Ding, Dong Eun Lee, Anton Li, Young-Seok Kim
  • Publication number: 20180162992
    Abstract: Polyarylene oligomer compositions having improved adhesion to surfaces as compared to conventional polyarylene oligomers are useful in forming dielectric material layers in electronics applications.
    Type: Application
    Filed: October 13, 2017
    Publication date: June 14, 2018
    Inventors: Christopher Gilmore, Aaron A. Rachford, Elizabeth K. Michael-Sapia, Dong Eun Lee, Jieqian Zhang, Ping Ding, Young-Seok Kim
  • Publication number: 20180138407
    Abstract: A compound having a four-coordinate boron atom to which is connected a first C3-C25 substituent, a second C3-C25 substituent and a bridging substituent comprising from eight to forty non-hydrogen atoms and having two bonds to the boron atom; wherein: (i) each of the first and second C3-C25 substituents is bonded to the boron atom through a carbon, nitrogen or oxygen atom, and, optionally the first and second C3-C25 substituents are connected to form a single substituent having two bonds to the boron atom; (ii) at least one of the first and second C3-C25 substituents is a C6-C25 aromatic substituent; (iii) said aromatic substituent comprises at least one nitrogen atom which is bonded only to carbon or boron atoms; and (iv) the bridging substituent has at least one oxygen, nitrogen, sulfur or phosphorus atom bonded to the boron atom and at least one aromatic ring.
    Type: Application
    Filed: April 22, 2016
    Publication date: May 17, 2018
    Inventors: Thomas P. Clark, David S. Laitar, Sukrit Mukhopadhyay, Aaron A. Rachford, Robert DJ Froese, David D. Devore, Bethany Neilson, Jeong-Hwan Jeon, Hong-Yeop Na
  • Publication number: 20180127403
    Abstract: A compound having a tricyclic nucleus and having formula (I) wherein Ar is C3-C25 aryl in which at least one aromatic ring atom is nitrogen; X is O, S or CR9R10; R1, R2, R3, R4, R5 and R6 independently are hydrogen, deuterium, C1-C12 alkyl, C4-C12 aryl or C2-C12 alkenyl; R7 and R8 independently are hydrogen, deuterium, C1-C12 alkyl, C4-C12 aryl or C2-C12 alkenyl or R7 and R8 groups attached to a nitrogen atom are joined by a single bond, O, S or CR11R12 to form a single nitrogen-containing substituent; R9 and R10 independently are hydrogen, deuterium, C1-C12 alkyl, C4-C12 aryl or C2-C12 alkenyl; and R11 and R12 independently are hydrogen, deuterium, C1-C12 alkyl, C4-C12 aryl or C2-C12 alkenyl; provided that Ar does not contain an aromatic ring attached to the tricyclic nucleus which contains more than two aromatic ring nitrogen atoms.
    Type: Application
    Filed: July 7, 2016
    Publication date: May 10, 2018
    Inventors: Nolan T. McDougal, David S. Laitar, Sukrit Mukhopadhyay, Thomas P. Clark, David D. Devore, Kaitlyn Gray, Aaron A. Rachford, Robert DJ Froese
  • Publication number: 20180002597
    Abstract: The present disclosure provides a composition comprising at least one compound selected from the group consisting of Compound 1, Compound 2, and combinations thereof, as shown below, and described herein: wherein, for Compound 1 and Compound 2, independently, R1 and R2 each independently is selected from the group consisting of hydrogen, a substituted alkyl, an unsubstituted alkyl, a substituted heteroalkyl, an unsubstituted heteroalkyl, a substituted aryl, an unsubstituted aryl, a substituted heteroaryl and an unsubstituted heteroaryl; wherein, for Compound 1 and Compound 2, independently, the Component A is selected from the group consisting of Group a) through Group h): wherein Group a) through Group h) are described herein.
    Type: Application
    Filed: December 21, 2015
    Publication date: January 4, 2018
    Inventors: Kaitlyn Gray, Aaron Rachford, David Laitar, Sukrit Mukhopadhyay, Robert Froese
  • Publication number: 20170229670
    Abstract: The invention provides compositions comprising copper(I) pyrazolate dimer compounds for use in OLEDs applications. The inventive compositions can be used to generate visible light colors or a color blend in electronic devices.
    Type: Application
    Filed: October 6, 2015
    Publication date: August 10, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: David S. Laitar, Thomas P. Clark, Aaron A. Rachford, Sukrit Mukhopadhyay, Timothy S. De Vries, David D. Devore
  • Publication number: 20170009006
    Abstract: Polyarylene oligomers formed from an aromatic dialkyne monomer having a solubility enhancing moiety show improved solubility in certain organic solvents and are useful in forming dielectric material layers in electronics applications.
    Type: Application
    Filed: February 29, 2016
    Publication date: January 12, 2017
    Inventors: Ping Ding, Peng-Wei Chuang, Christopher Gilmore, Cecilia W. Kiarie, Young-Seok Kim, Jieqian Zhang, Aaron A. Rachford, Shintaro Yamada, James Cameron
  • Patent number: 9500947
    Abstract: Acid generator compounds are provided that are particularly useful as a photoresist composition component. Acid generator compounds of the invention comprise 1) a cyclic sulfonium salt and 2) a covalently linked photoacid-labile group. In one aspect, thioxanthone acid generator compounds are particularly preferred, including acid generator compounds that comprise (i) a thioxanthone moiety; and (ii) one or more covalently linked acid labile-groups.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: November 22, 2016
    Assignees: Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLC
    Inventors: Paul J. LaBeaume, Aaron A. Rachford, Vipul Jain
  • Publication number: 20140080059
    Abstract: Acid generator compounds are provided that are particularly useful as a photoresist composition component. Acid generator compounds of the invention comprise 1) a cyclic sulfonium salt and 2) a covalently linked photoacid-labile group. In one aspect, thioxanthone acid generator compounds are particularly preferred, including acid generator compounds that comprise (i) a thioxanthone moiety; and (ii) one or more covalently linked acid labile-groups.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Inventors: Paul J. LaBEAUME, Aaron A. RACHFORD, Vipul JAIN