Patents by Inventor Paul W. Pretzer

Paul W. Pretzer 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: 10933011
    Abstract: A composition comprises (A) a silicone elastomer. The (A) silicone elastomer comprises the reaction product of: (a) an organohydrogensiloxane having an average of at least two silicon-bonded hydrogen atoms per molecule; (b) a crosslinking agent having an average of at least two ethylenically unsaturated groups per molecule; and (c) a hydrosilylation catalyst. The reaction product is formed in the in the presence of (d) a silicone polyether polymer; and (e) particles. The composition further comprises (B) a carrier fluid. The (e) particles are dispersed in the (A) silicone elastomer in the composition. A method of preparing the composition is also disclosed.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: March 2, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Zhi Li, Bartley D. Maxon, Kimmai T. Nguyen, Paul W. Pretzer, Kristen E. Steinbrecher, Lisa M. Vanommeren, Evan Waddell, Fang Zhang, Kenneth E. Zimmerman
  • Publication number: 20200085720
    Abstract: A composition comprises (A) a silicone elastomer. The (A) silicone elastomer comprises the reaction product of: (a) an organohydrogensiloxane having an average of at least two silicon-bonded hydrogen atoms per molecule; (b) a crosslinking agent having an average of at least two ethylenically unsaturated groups per molecule; and (c) a hydrosilylation catalyst. The reaction product is formed in the in the presence of (d) a silicone polyether polymer; and (e) particles. The composition further comprises (B) a carrier fluid. The (e) particles are dispersed in the (A) silicone elastomer in the composition. A method of preparing the composition is also disclosed.
    Type: Application
    Filed: November 8, 2016
    Publication date: March 19, 2020
    Inventors: Zhi LI, Bartley D. MAXON, Kimmai T. NGUYEN, Paul W. PRETZER, Kristen E. STEINBRECHER, Lisa M. VANOMMEREN, Evan WADDELL, Fang ZHANG, Kenneth E. ZIMMERMAN
  • Publication number: 20160331673
    Abstract: A cosmetic composition comprises a silicone organic elastomer comprising an amino functional group, and at least one cosmetic ingredient, generally in a cosmetically acceptable medium. The silicone organic elastomer is a reaction product of: (A) a linear, branched or cyclic organohydrogensiloxane comprising at least one (1) silicon-bonded hydrogen atom; and (B) a XZ?n derivative comprising at least two (2) unsaturated aliphatic groups; in the presence of (C) a hydrosilylation catalyst. X is an amine group containing compound, Z? is a ring-opened ethylenically-unsaturated epoxide comprising at least one (1) unsaturated aliphatic group and n=1 or 2. A process of preparing the cosmetic composition and method of using the cosmetic composition are also disclosed.
    Type: Application
    Filed: January 16, 2015
    Publication date: November 17, 2016
    Applicants: Dow Coming Corporation, Dow Coming (China) Holding Co., Ltd.
    Inventors: Michael Salvatore FERRITTO, Donald Anthony KADLEC, Kimmai Thi NGUYEN, Paul W. PRETZER, Justin M. SCHERZER, Adriana C. URRUTIA, Isabelle VAN REETH, Kenneth ZIMMERMAN
  • Patent number: 8298517
    Abstract: Personal care composition having improved compatibility and providing improved sun protection are obtained by including a liquid silicone resin having greater than 50 mole percent Me3SiO1/2 and PrSiC3/2 units, where Me is methyl and Pr is propyl in the composition. If desired to enable additional compatibility of ingredients comprising the personal care composition, the liquid silicone resin can also contain PhSiO3/2 or Ph2SiO2/2 units, where Ph is phenyl, or a mixture thereof.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: October 30, 2012
    Assignee: Dow Corning Corporation
    Inventors: John Bernard Horstman, Douglas W. King, Paul W. Pretzer, Randall Schmidt, Gary Wieber, Tina Leaym, Maria R. Pretzer
  • Publication number: 20110110873
    Abstract: Personal care composition having improved compatibility and providing improved sun protection are obtained by including a liquid silicone resin having greater than 50 mole percent Me3SiO1/2 and PrSiC3/2 units, where Me is methyl and Pr is propyl in the composition. If desired to enable additional compatibility of ingredients comprising the personal care composition, the liquid silicone resin can also contain PhSiO3/2 or Ph2SiO2/2 units, where Ph is phenyl, or a mixture thereof.
    Type: Application
    Filed: July 6, 2009
    Publication date: May 12, 2011
    Applicant: DOW CORNING CORPORATION
    Inventors: John Bernard Horstman, Douglas W. King, Paul W. Pretzer, Randall Schmidt, Gary Wieber, Tina Leaym, Maria R. Pretzer