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).

  • Patent number: 12146034
    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: Grant
    Filed: December 16, 2019
    Date of Patent: November 19, 2024
    Assignees: Dow Silicones Corporation, Dow Global Technologies LLC
    Inventors: Emmanuel Duquesne, Martin Grasmann, Brian Harkness, William Johnson, Bindu Krishnan, Elizabeth Santos, Justin Scherzer, Jeanette Young, Bizhong Zhu
  • Patent number: 11807775
    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: Grant
    Filed: December 16, 2019
    Date of Patent: November 7, 2023
    Assignees: Dow Silicones Corporation, Dow Global Technologies LLC
    Inventors: Emmanuel Duquesne, Michael S. Ferrito, Martin Grasmann, Brian Harkness, William Johnson, Bindu Krishnan, Elizabeth Santos, Justin Scherzer, Jeanette Young, Bizhong Zhu
  • Patent number: 11760841
    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: Grant
    Filed: November 16, 2019
    Date of Patent: September 19, 2023
    Assignees: DOW SILICONES CORPORATION, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Emmanuel Duquesne, Martin Grasmann, Brian Harkness, William Johnson, Elizabeth Santos, Justin Scherzer, Jeanette Young, Bizhong Zhu
  • Patent number: 11679292
    Abstract: A foam stabilizing composition is disclosed. The composition comprises (A) a siloxane cationic surfactant comprising a cationic moiety having the formula Z1-D1-N(Y)a(R)2?a, wherein Z1 is a siloxane moiety, D1 is a divalent linking group, R is H or an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms, subscript a is 1 or 2, and each Y has formula -D-NR13+, where D is a divalent linking group and each R1 is independently an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms. The composition also comprises (B) an organic cationic surfactant comprising a cationic moiety having the formula Z2-D2-N(Y)b(R)2?b, wherein Z2 is an unsubstituted hydrocarbyl group, D2 is a covalent bond or a divalent linking group, subscript b is 1 or 2, and R, Y, and subscript a, are defined above. An aqueous film-forming foam comprising the composition and method of using the same are also disclosed.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: June 20, 2023
    Assignees: DOW SILICONES CORPORATION, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Nanguo Liu, Zachary Wenzlick, Brian Harkness, Jon Hannington, Scott Miller, Gerald Witucki, Brian Dorvel
  • 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
  • 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
  • Publication number: 20130023109
    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: Application
    Filed: December 15, 2010
    Publication date: January 24, 2013
    Inventor: Brian Harkness
  • Patent number: 8258502
    Abstract: A composition includes: (I) an alkenyl functional, phenyl-containing polyorganosiloxane, an Si—H functional phenyl-containing polyorganosiloxane, or a combination thereof; (II) a hydrogendiorganosiloxy terminated oligodiphenylsiloxane having specific molecular weight, an alkenyl-functional, diorganosiloxy-terminated oligodiphenylsiloxane having specific molecular weight, or a combination thereof; and (III) a hydrosilylation catalyst. A light emitting device is made by applying the composition onto a light source followed by curing. The composition provides a cured material with mechanical properties suited for use as an encapsulant for a light emitting device.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: September 4, 2012
    Assignee: Dow Corning Corporation
    Inventors: Makoto Yoshitake, Masashi Murakami, Yoshitsugu Morita, Tomoko Kato, Hiroji Enami, Masayoshi Terada, Brian Harkness, Tammy Cheng, Michelle Cummings, Ann Norris, Malinda Howell
  • Patent number: 8227181
    Abstract: A method of preparing a patterned film on a substrate includes applying a silicone composition onto a substrate to form a film of the silicone composition. A portion of the film is exposed to radiation to produce a partially exposed film having an exposed region and a non-exposed region. The partially exposed film is heated for a sufficient amount of time and at a sufficient temperature to substantially insolubilize the exposed region in a developing solvent that includes a siloxane component. The non-exposed region of the partially exposed film is removed with the developing solvent to reveal a film-free region on the substrate and to form the patterned film including the exposed region that remains on the substrate. The film-free regions is substantially free of residual silicone due to the presence of the siloxane component in the developing solvent.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: July 24, 2012
    Assignee: Dow Corning Corporation
    Inventors: Herman C. G. D. C. Meynen, Brian Harkness
  • Publication number: 20100276721
    Abstract: A composition includes: (I) an alkenyl functional, phenyl-containing polyorganosiloxane, an Si—H functional phenyl-containing polyorganosiloxane, or a combination thereof; (II) a hydrogendiorganosiloxy terminated oligodiphenylsiloxane having specific molecular weight, an alkenyl-functional, diorganosiloxy-terminated oligodiphenylsiloxane having specific molecular weight, or a combination thereof; and (III) a hydrosilylation catalyst. A light emitting device is made by applying the composition onto a light source followed by curing. The composition provides a cured material with mechanical properties suited for use as an encapsulant for a light emitting device.
    Type: Application
    Filed: February 1, 2007
    Publication date: November 4, 2010
    Applicants: DOW CORNING CORPORATION, DOW CORNING TORAY CO., LTD.
    Inventors: Makoto Yoshitake, Masashi Murakami, Yoshitsugu Morita, Tomoko Kato, Hiroji Enami, Masayoshi Terada, Brian Harkness, Tammy Cheng, Michelle Cummings, Ann Norris, Malinda Howell
  • Publication number: 20100206470
    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: Application
    Filed: October 23, 2008
    Publication date: August 19, 2010
    Inventors: Wei Chen, Brian Harkness, Jae Woong Lim, Michael Stanga
  • Publication number: 20100178472
    Abstract: A method of preparing a patterned film on a substrate includes applying a silicone composition onto a substrate to form a film of the silicone composition. A portion of the film is exposed to radiation to produce a partially exposed film having an exposed region and a non-exposed region. The partially exposed film is heated for a sufficient amount of time and at a sufficient temperature to substantially insolubilize the exposed region in a developing solvent that includes a siloxane component. The non-exposed region of the partially exposed film is removed with the developing solvent to reveal a film-free region on the substrate and to form the patterned film including the exposed region that remains on the substrate. The film-free regions is substantially free of residual silicone due to the presence of the siloxane component in the developing solvent.
    Type: Application
    Filed: August 8, 2007
    Publication date: July 15, 2010
    Inventors: Herman C.G.D.C. Meynen, Brian Harkness