Patents by Inventor Maryangel G. Dunlavy

Maryangel G. Dunlavy 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).

  • Refresh agent
    Patent number: 11773230
    Abstract: A coated rubber composition includes a rubber composition coated with a liquid refresh agent selected from the group consisting of one or more liquid terpenes, limonene, carvone, pinene, pine needle oil, citral, orange oil, C9-C15 aliphatics, C9-C15 cycloaliphatics, ethyl lactate, dipentene, 1,8-cineole, eucalyptol, citronellol, geraniol, citronellene, terpinen-4-ol, and combinations thereof. A method of application and a coated rubber composition are also disclosed.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: October 3, 2023
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Amy M. Randall, Maryangel G. Dunlavy
  • SILICA-FILLED RUBBER COMPOSITION AND METHOD FOR MAKING THE SAME
    Publication number: 20230129988
    Abstract: Disclosed is a method of preparing a rubber composition comprising the steps of (a) blending in at least one preparatory mixing step at least one natural or synthetic rubbery polymer, a silica filler, a silica coupling agent, and at least one vulcanization accelerator; and (b) subsequently blending therewith in a final mixing step a sulfur curative, wherein the average glass transition temperature of the polymer(s) is ?55° C. or less.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 27, 2023
    Inventor: Maryangel G. Dunlavy
  • Silica-filled rubber composition and method for making the same
    Patent number: 11535687
    Abstract: Disclosed is a method of preparing a rubber composition comprising the steps of (a) blending in at least one preparatory mixing step at least one natural or synthetic rubbery polymer, a silica filler, a silica coupling agent, and at least one vulcanization accelerator; and (b) subsequently blending therewith in a final mixing step a sulfur curative, wherein the average glass transition temperature of the polymer(s) is ?55° C. or less.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: December 27, 2022
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventor: Maryangel G. Dunlavy
  • Refresh Agent
    Publication number: 20210002442
    Abstract: A coated rubber composition includes a rubber composition coated with a liquid refresh agent selected from the group consisting of one or more liquid terpenes, limonene, carvone, pinene, pine needle oil, citral, orange oil, C9-C15 aliphatics, C9-C15 cycloaliphatics, ethyl lactate, dipentene, 1,8-cineole, eucalyptol, citronellol, geraniol, citronellene, terpinen-4-ol, and combinations thereof. A method of application and a coated rubber composition are also disclosed.
    Type: Application
    Filed: July 20, 2020
    Publication date: January 7, 2021
    Applicant: Bridgestone Americas Tire Operations, LLC
    Inventors: Amy M. Randall, Maryangel G. Dunlavy
  • Refresh agent
    Patent number: 10717838
    Abstract: A coated rubber composition includes a rubber composition coated with a liquid refresh agent selected from the group consisting of one or more liquid terpenes, limonene, carvone, pinene, pine needle oil, citral, orange oil, C9-C15 aliphatics, C9-C15 cycloaliphatics, ethyl lactate, dipentene, 1,8-cineole, eucalyptol, citronellol, geraniol, citronellene, terpinen-4-ol, and combinations thereof. A method of application and a coated rubber composition are also disclosed.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: July 21, 2020
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Amy M. Randall, Maryangel G. Dunlavy
  • Rubber composition containing a blend of silicas and related processes for improving wear
    Patent number: 10654993
    Abstract: Disclosed herein are rubber compositions comprising: (a) natural rubber, polyisoprene, or a combination thereof; (b) at least one conjugated diene monomer containing polymer or polymer; (c) a first silica filler having a BET surface area of at least 220 m2/g; (d) a second silica filler having a BET surface area lower than that of the first silica filler and greater than 135 m2/g; and (e) optionally carbon black filler.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: May 19, 2020
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Maryangel G. Dunlavy, Michael R. Beaulieu, Natalie V. Weingart
  • Methods for preparing tire treads with advantageous wear characteristics
    Patent number: 10590267
    Abstract: A method for preparing a vulcanizable composition of matter, the method comprising mixing rubber, silica, silica coupling agent, a strong base, and nicotinamide to form a masterbatch, introducing a curative to the masterbatch, and mixing the curative into the masterbatch to form a vulcanizable composition of matter.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: March 17, 2020
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Benjamin C. Galizio, Maryangel G. Dunlavy
  • RUBBER COMPOSITION CONTAINING A BLEND OF SILICAS AND RELATED PROCESSES FOR IMPROVING WEAR
    Publication number: 20190241720
    Abstract: Disclosed herein are rubber compositions comprising: (a) natural rubber, polyisoprene, or a combination thereof; (b) at least one conjugated diene monomer containing polymer or polymer; (c) a first silica filler having a BET surface area of at least 220 m2/g; (d) a second silica filler having a BET surface area lower than that of the first silica filler and greater than 135 m2/g; and (e) optionally carbon black filler.
    Type: Application
    Filed: November 29, 2016
    Publication date: August 8, 2019
    Inventors: Maryangel G. Dunlavy, Michael R. Beaulieu, Natalie V. Weingart
  • METHODS FOR PREPARING TIRE TREADS WITH ADVANTAGEOUS WEAR CHARACTERISTICS
    Publication number: 20170247530
    Abstract: A method for preparing a vulcanizable composition of matter, the method comprising mixing rubber, silica, silica coupling agent, a strong base, and nicotinamide to form a masterbatch, introducing a curative to the masterbatch, and mixing the curative into the masterbatch to form a vulcanizable composition of matter.
    Type: Application
    Filed: July 28, 2015
    Publication date: August 31, 2017
    Inventors: Benjamin C. Galizio, Maryangel G. Dunlavy
  • Refresh Agent
    Publication number: 20150368419
    Abstract: A coated rubber composition includes a rubber composition coated with a liquid refresh agent selected from the group consisting of one or more liquid terpenes, limonene, carvone, pinene, pine needle oil, citral, orange oil, C9-C15 aliphatics, C9-C15 cycloaliphatics, ethyl lactate, dipentene, 1,8-cineole, eucalyptol, citronellol, geraniol, citronellene, terpinen-4-ol, and combinations thereof. A method of application and a coated rubber composition are also disclosed.
    Type: Application
    Filed: March 13, 2014
    Publication date: December 24, 2015
    Inventors: Amy M. Randall, Maryangel G. Dunlavy
  • Silica-Filled Rubber Composition And Method For Making The Same
    Publication number: 20150031792
    Abstract: Disclosed is a method of preparing a rubber composition comprising the steps of (a) blending in at least one preparatory mixing step at least one natural or synthetic rubbery polymer, a silica filler, a silica coupling agent, and at least one vulcanization accelerator; and (b) subsequently blending therewith in a final mixing step a sulfur curative, wherein the average glass transition temperature of the polymer(s) is ?55° C. or less.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 29, 2015
    Inventor: Maryangel G. Dunlavy
  • Pneumatic Tire
    Publication number: 20140373995
    Abstract: A tire comprising a tread portion, a bead portion including a bead core, and a body ply including a turn-up portion positioned on an exterior of the tire, the turn-up portion of the body ply extending between said bead core and said tread and across a side portion of the tire.
    Type: Application
    Filed: December 31, 2012
    Publication date: December 25, 2014
    Inventors: Robert W. Handlos, David G. Abdallah, JR., Maryangel G. Dunlavy, Kent D. Weatherwax
  • Silica-Filled Rubber Composition And Method For Making The Same
    Publication number: 20140296375
    Abstract: Disclosed is a method of preparing a rubber composition comprising the steps of (a) blending in at least one preparatory mixing step at least one natural or synthetic rubbery polymer, a silica filler, a silica coupling agent, and at least one vulcanization accelerator; and (b) subsequently blending therewith in a final mixing step a sulfur curative, wherein the final mixing step is void of any vulcanization accelerator.
    Type: Application
    Filed: July 25, 2012
    Publication date: October 2, 2014
    Applicant: BRIDGESTONE AMERICAS TIRE OPERATIONS, LLC
    Inventors: Maryangel G. Dunlavy, Melissa M. Clark