Patents by Inventor David Laitar

David Laitar 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).

  • Publication number: 20230123215
    Abstract: A composition includes a silyl hydride (having at least one silicon-bonded hydrogen atom per molecule) and a fluorinated triarylborane Lewis acid. In the method, the Lewis acid catalyzes reaction of silicon bonded hydrogen atoms from the silyl hydride and water, thereby forming a siloxane bond in the resulting product. The composition and method can be used to form siloxane intermediates and cured networks.
    Type: Application
    Filed: June 16, 2021
    Publication date: April 20, 2023
    Inventors: Marc-Andre Courtemanche, Anne-Catherine Bedard, Heather Spinney, David Wilson, Arjun Raghuraman, Sukrit Mukhopadhyay, Andrew Shah, David Devore, David Laitar, Jordan Reddel, Shuqi Lai
  • Patent number: 11390703
    Abstract: Iodine transfer radical polymerization of an ethylenically unsaturated monomer comprising (meth)acrylic acid, salt thereof, or combination thereof, in the presence of a radical polymerization initiator, an organoiodide, and a solvent, is a useful method for making (meth)acrylic acid polymers. The amounts of components utilized can be 2 to 100 equivalents of acrylic acid and 2 to 100 equivalents of sodium acrylate, both dissolved in water to form a 15 to 50 weight percent solution, based on the total weight of the acrylic acid, sodium acrylate, and water; 0.05 to 1 equivalent of an azo polymerization initiator, 1 equivalent of an organoiodide; and 0 to 3 equivalents of an iodide salt. (Meth)acrylic acid polymer solutions are made by these methods. The (meth)acrylic polymers are useful as dispersants.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: July 19, 2022
    Assignees: DOW GLOBAL TECHNOLOGIES LLC, ROHM AND HAAS COMPANY, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Jing Ming Ren, Craig Hawker, Johannes Willenbacher, Alaina McGrath, Benjaporn Narupai, David Laitar, Antony Van Dyk
  • Patent number: 11352454
    Abstract: Reverse iodine transfer polymerization of an ethylenically unsaturated monomer comprising (meth)acrylic acid, salt thereof, or combination thereof, in the presence of a radical polymerization initiator, an oxidant, an iodide salt, and a solvent, is a useful method for making (meth)acrylic acid polymers. The amounts of components utilized can be 5 to 500 equivalents of the ethylenically unsaturated monomer comprising (meth)acrylic acid, salt thereof, or combination thereof, in the presence of 1 to 3 equivalents of the radical polymerization initiator, 0.2 to 1 equivalent of the oxidant, and 1 equivalent of the iodide salt. (Meth)acrylic acid polymer solutions are made by these methods. The (meth)acrylic polymers are useful as dispersants.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: June 7, 2022
    Assignees: DOW GLOBAL TECHNOLOGIES LLC, ROHM AND HAAS COMPANY, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Emre Discekici, In-Hwan Lee, Alaina McGrath, Craig Hawker, Jing Ming Ren, David Laitar, Antony Van Dyk
  • Publication number: 20220112317
    Abstract: Reverse iodine transfer polymerization of an ethylenically unsaturated monomer comprising (meth)acrylic acid, salt thereof, or combination thereof, in the presence of a radical polymerization initiator, an oxidant, an iodide salt, and a solvent, is a useful method for making (meth)acrylic acid polymers. The amounts of components utilized can be 5 to 500 equivalents of the ethylenically unsaturated monomer comprising (meth)acrylic acid, salt thereof, or combination thereof, in the presence of 1 to 3 equivalents of the radical polymerization initiator, 0.2 to 1 equivalent of the oxidant, and 1 equivalent of the iodide salt. (Meth)acrylic acid polymer solutions are made by these methods. The (meth)acrylic polymers are useful as dispersants.
    Type: Application
    Filed: February 7, 2020
    Publication date: April 14, 2022
    Inventors: Emre DISCEKICI, In-Hwan LEE, Alaina MCGRATH, Craig HAWKER, Jing Ming REN, David LAITAR, Antony VAN DYK
  • Publication number: 20220106423
    Abstract: Iodine transfer radical polymerization of an ethylenically unsaturated monomer comprising (meth)acrylic acid, salt thereof, or combination thereof, in the presence of a radical polymerization initiator, an organoiodide, and a solvent, is a useful method for making (meth)acrylic acid polymers. The amounts of components utilized can be 2 to 100 equivalents of acrylic acid and 2 to 100 equivalents of sodium acrylate, both dissolved in water to form a 15 to 50 weight percent solution, based on the total weight of the acrylic acid, sodium acrylate, and water; 0.05 to 1 equivalent of an azo polymerization initiator, 1 equivalent of an organoiodide; and 0 to 3 equivalents of an iodide salt. (Meth)acrylic acid polymer solutions are made by these methods. The (meth)acrylic polymers are useful as dispersants.
    Type: Application
    Filed: February 7, 2020
    Publication date: April 7, 2022
    Inventors: Jing Ming REN, Craig HAWKER, Johannes WILLENBACHER, Alaina McGRATH, Benjaporn NARUPAI, David LAITAR, Antony VAN DYK
  • Publication number: 20210236409
    Abstract: A cross-linked composition is disclosed. In various embodiments, the cross-linked composition comprises the reaction product of: a first siloxane having at least one pendant polycyclic anhydride group; a second siloxane having at least one pendant polycyclic anhydride group; and a polyol having at least two hydroxyl groups reactive with the pendant polycyclic anhydride groups of the first and second siloxanes. A personal care composition is also provided. The personal care composition comprises a cross-linked composition having at least two carboxyl groups. In various embodiments, the cross-linked composition is as described above. The personal care composition further comprises a least one cosmetic component; optionally in a cosmetically acceptable medium. Methods of forming the cross-linked composition and the personal care composition are also disclosed. A polycyclic anhydride composition and polyorganosiloxane composition are also disclosed.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 5, 2021
    Inventors: Ryan BAUMGARTNER, Roxanne Renee HALLER, Matthew JELETIC, David LAITAR, Kimmai Thi NGUYEN, Fang ZHANG, Kenneth Edward ZIMMERMAN
  • 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: 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