Patents by Inventor Brian Harkness

Brian Harkness 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: 20220267535
    Abstract: A silicone-polyether copolymer has the formula (X-D2)g-Y, where each X is an independently selected silicone moiety having a particular structure, D2 is a divalent hydrocarbon group, subscript g is greater than 1, and Y is a linear or branched polyether moiety. A method of preparing the silicone-polyether copolymer comprising reacting a polyether compound and an organosilicon compound in the presence of a hydrosilylation-reaction catalyst. A sealant is also disclosed, the sealant comprising the silicone-polyether copolymer and a condensation-reaction catalyst.
    Type: Application
    Filed: May 12, 2022
    Publication date: August 25, 2022
    Inventors: Martin GRASMANN, David HAGAN, Brian HARKNESS, William H. HEATH, Stephen Michael HLINKA, II, Eric JOFFRE, William JOHNSON, Bindu KRISHNAN, Jeanette YOUNG, Bizhong ZHU
  • Publication number: 20220081515
    Abstract: A silicone-polycarbonate copolymer has the formula Xg[ZjYo]c, where each X is an independently selected silicone moiety having a particular structure, each Y is an independently selected polycarbonate moiety, each Z is an independently selected siloxane moiety, subscript c is from 1 to 150, subscript g is >1, 0?j<2, and 0<o<2, with the proviso that j+o=2 in each moiety indicated by subscript c. Methods of preparing the silicone-polycarbonate copolymer are also disclosed. Further, a sealant is disclosed, the sealant comprising the silicone-polycarbonate copolymer and a condensation-reaction catalyst.
    Type: Application
    Filed: December 16, 2019
    Publication date: March 17, 2022
    Inventors: Emmanuel DUQUESNE, Martin GRASMANN, Brian HARKNESS, William JOHNSON, Elizabeth SANTOS, Justin SCHERZER, Jeanette YOUNG, Bizhong ZHU
  • Publication number: 20220064482
    Abstract: A silicone-organic copolymer has the formula Xg[ZjYo]c, where each X is an independently selected silicone moiety having a particular structure, each Y is an independently selected polyacrylate moiety, each Z is an independently selected siloxane moiety, subscript c is from 1 to 150, subscript g is >1, 0<j<2, and 0<o<2, with the proviso that j+o=2 in each moiety indicated by subscript c. Methods of preparing the silicone-organic copolymer are also disclosed. Further, a sealant is disclosed, the sealant comprising the silicone-organic copolymer and a condensation-reaction catalyst.
    Type: Application
    Filed: December 16, 2019
    Publication date: March 3, 2022
    Inventors: Emmanuel DUQUESNE, Michael S. FERRITO, Martin GRASMANN, Brian HARKNESS, William JOHNSON, Bindu KRISHNAN, Elizabeth SANTOS, Justin SCHERZER, Jeanette YOUNG, Bizhong ZHU
  • Publication number: 20220064383
    Abstract: A silicone-polyacrylate copolymer has the formula Xg[ZjYo]c, where each X is an independently selected silicone moiety having a particular structure, each Y is an independently selected polyacrylate moiety, each Z is an independently selected siloxane moiety, subscript c is from 1 to 150, subscript g is >1, 0?j<2, and 0<o<2, with the proviso that j+o=2 in each moiety indicated by subscript c. Methods of preparing the silicone-polyacrylate copolymer are also disclosed. Further, a sealant is disclosed, the sealant comprising the silicone-polyacrylate copolymer and a condensation-reaction catalyst.
    Type: Application
    Filed: December 16, 2019
    Publication date: March 3, 2022
    Inventors: Emmanuel DUQUESNE, Michael S. FERRITO, Martin GRASMANN, Brian HARKNESS, William JOHNSON, Bindu KRISHNAN, Elizabeth SANTOS, Justin SCHERZER, Jeanette YOUNG, Bizhong ZHU
  • Publication number: 20220041813
    Abstract: A silicone-polyester copolymer has the formula Xg[ZjYo]c, where each X is an independently selected silicone moiety having a particular structure, each Y is an independently selected polyester moiety, each Z is an independently selected siloxane moiety, subscript c is from 1 to 150, subscript g is >1, 0?j<2, and 0<o<2, with the proviso that j+o=2 in each moiety indicated by subscript c. Methods of preparing the silicone-polyester copolymer are also disclosed. Further, a sealant is disclosed, the sealant comprising the silicone-polyester copolymer and a condensation-reaction catalyst.
    Type: Application
    Filed: December 16, 2019
    Publication date: February 10, 2022
    Inventors: Emmanuel DUQUESNE, Martin GRASMANN, Brian HARKNESS, William JOHNSON, Bindu KRISHNAN, Elizabeth SANTOS, Justin SCHERZER, Jeanette YOUNG, Bizhong ZHU
  • Patent number: 10982052
    Abstract: A silicone block copolymer having an aminofunctional endblocking group is useful in personal care applications, particularly hair care. A process for making the silicone block copolymer is also described.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: April 20, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Qian Feng, Brian Harkness, Kimmai Thi Nguyen, Hannah Schmidt, Nisaraporn Suthiwangcharoen, Bethany Johnson
  • Patent number: 10920078
    Abstract: A silicone-polyether copolymer has the formula Xg[ZjYo]c, where each X is an independently selected silicone moiety having a particular structure, each Y is an independently selected polyether moiety, each Z is an independently selected siloxane moiety, subscript c is from 1 to 150, subscript g is >1, and each subscript j and o are independently >0 and <2, with the proviso that j+o=2 in each moiety indicated by subscript c. A method of preparing the silicone-polyether copolymer is also disclosed, and comprises reacting a polyether compound, a chain extending organosilicon compound, and an endcapping organosilicon compound in the presence of a hydrosilylation catalyst. A sealant is also disclosed, the sealant comprising the silicone-polyether copolymer and a condensation-reaction catalyst.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: February 16, 2021
    Assignees: Dow Silicones Corporation, Dow Global Technologies LLC
    Inventors: Martin Grasmann, David Hagan, Brian Harkness, William H. Heath, Stephen Michael Hlinka, II, Eric Joffre, William Johnson, Jeanette Young, Bizhong Zhu
  • Publication number: 20200325280
    Abstract: A silicone block copolymer having an aminofunctional endblocking group is useful in personal care applications, particularly hair care. A process for making the silicone block copolymer is also described.
    Type: Application
    Filed: April 24, 2017
    Publication date: October 15, 2020
    Inventors: Qian Feng, Brian Harkness, Kimmai Thi Nguyen, Hannah Schmidt, Nisaraporn Suthiwangcharoen, Bethany Johnson
  • Patent number: 10800921
    Abstract: An isocyanate-functional silicone-polyether copolymer having a particular structure is disclosed. A method of preparing the isocyanate-functional silicone-polyether copolymer is also disclosed, the method comprising reacting a polyether compound and an organosilicon compound to give the isocyanate-functional silicone-polyether copolymer. A silicone-polyether-urethane copolymer formed therewith, as well as a method of preparing the silicone-polyether-urethane copolymer, are also disclosed. Sealants comprising the isocyanate-functional silicone-polyether copolymer and/or the silicone-polyether-urethane copolymer are further disclosed.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: October 13, 2020
    Assignees: DOW SILICONES CORPORATION, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Martin Grasmann, David Hagan, Brian Harkness, William H. Heath, Stephen Michael Hlinka, II, Eric Joffre, William Johnson, Bindu Krishnan, Qiuyun Xu, Bizhong Zhu
  • Patent number: 10738191
    Abstract: A silicone-polyether copolymer has the formula X—Y, where X is a silicone moiety having a particular structure and Y is a polyether moiety. An isocyanate-functional silicone-polyether copolymer formed therewith is also disclosed. Further, a silicone-polyether-urethane copolymer formed with the isocyanate-functional silicone-polyether copolymer is disclosed. Related methods of preparation as well as sealants and cured products thereof are further disclosed.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: August 11, 2020
    Assignees: Dow Silicones Corporation, Dow Global Technologies LLC
    Inventors: Martin Grasmann, David Hagan, Brian Harkness, William H. Heath, Stephen Michael Hlinka, II, Eric Joffre, William Johnson, Bindu Krishnan, Qiuyun Xu, Bizhong Zhu
  • Patent number: 10676568
    Abstract: A silicone-polyether copolymer has the formula Xg—Y, where each X is an independently selected silicone moiety having a particular structure, Y is a linear or branched polyether moiety, and subscript g is on average more than 1. A method of preparing the silicone-polyether copolymer comprising reacting a polyether compound and an organosilicon compound in the presence of a hydrosilylation-reaction catalyst. A sealant is also disclosed, the sealant comprising the silicone-polyether copolymer and a condensation-reaction catalyst.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: June 9, 2020
    Assignees: Dow Global Technologies LLC, Dow Silicones Corporation
    Inventors: Martin Grasmann, David Hagan, Brian Harkness, William H. Heath, Stephen Michael Hlinka, II, Eric Joffre, William Johnson, Bindu Krishnan, Jeanette Young, Bizhong Zhu
  • Publication number: 20200157279
    Abstract: A silicone-polyether copolymer has the formula (X-D2)g-Y, where each X is an independently selected silicone moiety having a particular structure, D2 is a divalent hydrocarbon group, subscript g is greater than 1, and Y is a linear or branched polyether moiety. A method of preparing the silicone-polyether copolymer comprising reacting a polyether compound and an organosilicon compound in the presence of a hydrosilylation-reaction catalyst. A sealant is also disclosed, the sealant comprising the silicone-polyether copolymer and a condensation-reaction catalyst.
    Type: Application
    Filed: June 26, 2018
    Publication date: May 21, 2020
    Inventors: Martin GRASMANN, David HAGAN, Brian HARKNESS, William H. HEATH, Stephen Michael HLINKA, II, Eric JOFFRE, William JOHNSON, Bindu KRISHNAN, Jeanette YOUNG, Bizhong ZHU
  • Publication number: 20200157278
    Abstract: A silicone-polyether copolymer has the formula Xg[ZjYo]c, where each X is an independently selected silicone moiety having a particular structure, each Y is an independently selected polyether moiety, each Z is an independently selected siloxane moiety, subscript c is from 1 to 150, subscript g is >1, and each subscript j and o are independently >0 and <2, with the proviso that j+o=2 in each moiety indicated by subscript c. A method of preparing the silicone-polyether copolymer is also disclosed, and comprises reacting a polyether compound, a chain extending organosilicon compound, and an endcapping organosilicon compound in the presence of a hydrosilylation catalyst. A sealant is also disclosed, the sealant comprising the silicone-polyether copolymer and a condensation-reaction catalyst.
    Type: Application
    Filed: June 26, 2018
    Publication date: May 21, 2020
    Inventors: Martin GRASMANN, David HAGAN, Brian HARKNESS, William H. HEATH, Stephen Michael HLINKA, II, Eric JOFFRE, William JOHNSON, Jeanette YOUNG, Bizhong ZHU
  • Publication number: 20200131369
    Abstract: A silicone-polyether copolymer has the formula Xg—Y, where each X is an independently selected silicone moiety having a particular structure, Y is a linear or branched polyether moiety, and subscript g is on average more than 1. A method of preparing the silicone-polyether copolymer comprising reacting a polyether compound and an organosilicon compound in the presence of a hydrosilylation-reaction catalyst. A sealant is also disclosed, the sealant comprising the silicone-polyether copolymer and a condensation-reaction catalyst.
    Type: Application
    Filed: June 26, 2018
    Publication date: April 30, 2020
    Inventors: Martin GRASMANN, David HAGAN, Brian HARKNESS, William H. HEATH, Stephen Michael HLINKA, II, Eric JOFFRE, William JOHNSON, Bindu KRISHNAN, Jeanette YOUNG, Bizhong ZHU
  • Publication number: 20200131302
    Abstract: A silicone-polyether copolymer has the formula X—Y, where X is a silicone moiety having a particular structure and Y is a polyether moiety. An isocyanate-functional silicone-polyether copolymer formed therewith is also disclosed. Further, a silicone-poly-ether-urethane copolymer formed with the isocyanate-functional silicone-polyether copolymer is disclosed. Related methods of preparation as well as sealants and cured products thereof are further disclosed.
    Type: Application
    Filed: June 26, 2018
    Publication date: April 30, 2020
    Inventors: Martin GRASMANN, David HAGAN, Brian HARKNESS, William H. HEATH, Stephen Michael HLINKA, II, Eric JOFFRE, William JOHNSON, Bindu KRISHNAN, Qiuyun XU, Bizhong ZHU
  • Publication number: 20200131368
    Abstract: An isocyanate-functional silicone-polyether copolymer having a particular structure is disclosed. A method of preparing the isocyanate-functional silicone-polyether copolymer is also disclosed, the method comprising reacting a polyether compound and an organosilicon compound to give the isocyanate-functional silicone-polyether copolymer. A silicone-polyether-urethane copolymer formed therewith, as well as a method of preparing the silicone-polyether-urethane copolymer, are also disclosed. Sealants comprising the isocyanate-functional silicone-polyether copolymer and/or the silicone-polyether-urethane copolymer are further disclosed.
    Type: Application
    Filed: June 26, 2018
    Publication date: April 30, 2020
    Inventors: Martin GRASMANN, David HAGAN, Brian HARKNESS, William H. HEATH, Stephen Michael HLINKA, II, Eric JOFFRE, William JOHNSON, Bindu KRISHNAN, Qiuyun XU, Bizhong ZHU
  • Patent number: 9346945
    Abstract: Filled silicone composition, in situ preparation and use thereof are provided. The composition comprises a mixture of (A) an in situ-prepared treated silica, (B) an in situ-prepared (siloxane-alkylene)-endblocked polydiorganosiloxane, (c) a cure catalyst and (D) a crosslinker. Moreover, the composition can be used as adhesive, coating and sealant.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: May 24, 2016
    Assignees: DOW CORNING CORPORATION, DOW CORNING (CHINA) HOLDING CO., LTD.
    Inventors: Lei Fang, Brian Harkness, Xiucuo Li, Lauren Tonge, James Tonge
  • Publication number: 20150051345
    Abstract: Filled silicone composition, in situ preparation and use thereof are provided. The composition comprises a mixture of (A) an in situ-prepared treated silica, (B) an in situ-prepared (siloxane-alkylene)-endblocked polydiorganosiloxane, (c) a cure catalyst and (D) a crosslinker. Moreover, the composition can be used as adhesive, coating and sealant.
    Type: Application
    Filed: October 11, 2011
    Publication date: February 19, 2015
    Inventors: Lei Fang, Brian Harkness, Xiucuo Li, Lauren Tonge, James Tonge
  • Patent number: 8734708
    Abstract: A method includes the steps of (I) fabricating a cured silicone product and (II) using the cured silicone product in a patterning technique. The cured silicone product is a reaction product of (A) a silicone cure package and (B) is a polar additive having a polyalkylene oxide functionality and a reactive functionality. The method is useful in soft lithography applications.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: May 27, 2014
    Assignee: Dow Corning Corporation
    Inventors: Wei Chen, Brian Harkness, Jae Woong Lim, Michael Stanga
  • Patent number: 8647964
    Abstract: A method for temporary wafer bonding employs a curable adhesive composition and a degradation agent combined with the curable adhesive composition. The adhesive composition may include (A) a polyorganosiloxane containing an average of at least two silicon-bonded unsaturated organic groups per molecule, (B) an organosilicon compound containing an average of at least two silicon-bonded hydrogen atoms per molecule in an amount sufficient to cure the composition, (C) a catalytic amount of a hydrosilylation catalyst, and (D) a base. The film prepared by curing the composition is degradable and removable by heating.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: February 11, 2014
    Assignee: Dow Corning Corporation
    Inventor: Brian Harkness