Patents by Inventor Gregory F. Schmidt

Gregory F. Schmidt 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: 6844399
    Abstract: Sulfonated substantially random interpolymers made from monomer components comprise from 1 to 65 mole percent of (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinylidene monomer, or (c) a combination of at least one vinyl or vinylidene aromatic monomer and at lest one hindered aliphatic or cycloaliphatic vinylidene monomer, and from 35 to 99 mole percent of at least one aliphatic ?-olefin having from 2 to 20 carbon atoms; and optionally, from 0 to 20 mole percent of a diene containing from 4 to 20 carbon atoms; wherein the sulfonated interpolymer contains at least one mer (or moiety) of a group represented by the formula —SO3?M where M is hydrogen or a group 1, 7 or 12 metal in ionic form or combination thereof. Blends of these polymers with polyamides and polyolefins are made.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: January 18, 2005
    Assignee: Dow Global Technologies, Inc.
    Inventors: Yunwa W. Cheung, Stephen F. Hahn, James C. Stevens, Francis J. Timmers, Gregory F. Schmidt, Thoi H. Ho, Robert H. Terbrueggen
  • Publication number: 20030149189
    Abstract: Sulfonated substantially random interpolymers made from monomer components comprise from 1 to 65 mole percent of (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinylidene monomer, or (c) a combination of at least one vinyl or vinylidene aromatic monomer and at lest one hindered aliphatic or cycloaliphatic vinylidene monomer, and from 35 to 99 mole percent of at least one aliphatic &agr;-olefin having from 2 to 20 carbon atoms; and optionally, from 0 to 20 mole percent of a diene containing from 4 to 20 carbon atoms; wherein the sulfonated interpolymer contains at least one mer (or moiety) of a group represented by the formula —SO3−M where M is hydrogen or a group 1, 7 or 12 metal in ionic form or combination thereof. Blends of these polymers with polyamides and polyolefins are made.
    Type: Application
    Filed: October 7, 2002
    Publication date: August 7, 2003
    Applicant: Dow Global Technologies Inc.
    Inventors: Yunwa W. Cheung, Stephen F. Hahn, James C. Stevens, Francis J. Timmers, Gregory F. Schmidt, Thoi H. Ho, Robert H. Terbrueggn
  • Patent number: 6512049
    Abstract: Sulfonated substantially random interpolymers made from monomer components comprise from 1 to 65 mole percent of (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinylidene monomer, or (c) a combination of at least one vinyl or vinylidene aromatic monomer and at lest one hindered aliphatic or cycloaliphatic vinylidene monomer, and from 35 to 99 mole percent of at least one aliphatic &agr;-olefin having from 2 to 20 carbon atoms; and optionally, from 0 to 20 mole percent of a diene containing from 4 to 20 carbon atoms; wherein the sulfonated interpolymer contains at least one mer (or moiety) of a group represented by the formula —SO3M where M is hydrogen or a group 1, 7 or 12 metal in ionic form or combination thereof. Blends of these polymers with polyamides and polyolefins are made.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: January 28, 2003
    Assignee: Dow Global Technologies Inc.
    Inventors: Yunwa W. Cheung, Stephen F. Hahn, James C. Stevens, Francis J. Timmers, Gregory F. Schmidt, Robert H. Terbrueggen, Thoi H. Ho
  • Patent number: 6479594
    Abstract: Sulfonated substantially random interpolymers made from monomer components comprise from 1 to 65 mole percent of (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinylidene monomer, or (c) a combination of at least one vinyl or vinylidene aromatic monomer and at least one hindered aliphatic or cycloaliphatic vinylidene monomer, and from 35 to 99 mole percent of at least one aliphatic &agr;-olefin having from 2 to 20 carbon atoms; and optionally, from 0 to 20 mole percent of a diene containing from 4 to 20 carbon atoms; wherein the sulfonated interpolymer contains at least one mer (or moiety) of a group represented by the formula —SO3−M where M is hydrogen or a group 1, 7 or 12 metal in ionic form or combination thereof. Blends of these polymers with polyamides and polyolefins are made.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: November 12, 2002
    Assignee: The Dow Chemical Company
    Inventors: Yunwa W. Cheung, Stephen F. Hahn, James C. Stevens, Francis J. Timmers, Gregory F. Schmidt, Thoi H. Ho, Robert H. Terbrueggen
  • Patent number: 5646084
    Abstract: Compositions comprising Group 4 metal complexes containing a diene moiety and activating cocatalysts are used as catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers. Vinylidene aromatic monomers, particularly styrene are polymerized to form highly syndiotactic polymers.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: July 8, 1997
    Assignee: The Dow Chemical Company
    Inventors: Jasson Todd Patton, David D. Devore, Franis J. Timmers, Jorge Soto, Gregory F. Schmidt, David R. Wilson
  • Patent number: 5543480
    Abstract: Compositions comprising Group 4 metal complexes containing a diene moiety and activating cocatalysts are used as catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers. Vinylidene aromatic monomers, particularly styrene are polymerized to form highly syndiotactic polymers.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: August 6, 1996
    Assignee: The Dow Chemical Company
    Inventors: Jasson T. Patton, David D. Devore, Francis J. Timmers, Jorge Soto, Gregory F. Schmidt, David R. Wilson
  • Patent number: 5264646
    Abstract: A process for preparing a vinylically-unsaturated product compound comprises reacting a halogenated organic compound with a hydrolytically-stable, vinylically-unsaturated precursor compound in the presence of (a) a homogeneous zerovalent palladium catalyst complex, (b) an organic hydrogen halide acceptor and (c) a diluent, wherein the diluent is water or an aqueous solution containing up to 95% by volume of an organic solvent. The halogenated organic compound is selected from aryl halides, benzyl halides or vinylic halides. The hydrolytically-stable, vinylically-unsaturated precursor compound is selected from organosilicon compounds, hydrocarbon compounds or compounds containing at least one of an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom or a combination thereof.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: November 23, 1993
    Assignee: The Dow Chemical Company
    Inventors: Robert A. DeVries, Gregory F. Schmidt, Hughie R.* Frick, Bonnie Frick
  • Patent number: 5015749
    Abstract: An improved process for the preparation of aluminoxanes comprising contacting an aluminoxane precursor such as a hydrocarbyl substituted aluminum compound with a porous organic or inorganic aqueous imbiber material containing water sorbed or imbibed therein.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: May 14, 1991
    Assignee: The Dow Chemical Company
    Inventors: Gregory F. Schmidt, Dennis A. Hucul, Richard E. Campbell, Jr.
  • Patent number: 4990716
    Abstract: Diphenylmethanes such as o-benzyltoluene are prepared by contacting a benzyl halide with a benzene in the presence of a catalytic amount of a normally solid, insoluble perfluorosulfonic acid polymer under reaction conditions. The o-benzyltoluenes are useful intermediates in the production of anthraquinone and anthracene.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: February 5, 1991
    Assignee: The Dow Chemical Company
    Inventors: Gregory F. Schmidt, Paul D. Williams
  • Patent number: 4808680
    Abstract: Polymers of vinyl aromatic monomers having a high degree of syndiotacticity are prepared by contacting with a catalyst comprising a cyclopentadienyl zirconium (IV) complex and polymethylaluminoxane under polymerization conditions.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: February 28, 1989
    Assignee: The Dow Chemical Company
    Inventors: Gregory F. Schmidt, Richard E. Campbell, Jr.
  • Patent number: 4774301
    Abstract: Polymers of vinyl aromatic monomers having a high degree of syndiotacticity are prepared by contacting with a catalyst comprising a zirconium (IV) complex and polymethylaluminoxane under polymerization conditions.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: September 27, 1988
    Assignee: The Dow Chemical Company
    Inventors: Richard E. Campbell, Jr., Gregory F. Schmidt
  • Patent number: 4659685
    Abstract: Catalyst compositions are disclosed which are a combination of a supported titanium compound such as titanium tetraisopropoxide supported on magnesium dichloride and at least one other supported metallic catalyst such as dicyclopentadienyl zirconium dichloride supported on alumina and a cocatalyst such as aluminoxane. These catalysts are useful in the polymerization of .alpha.-olefins.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: April 21, 1987
    Assignee: The Dow Chemical Company
    Inventors: William M. Coleman, III, Gregory F. Schmidt, Richard E. Campbell, Jr., Mark S. Delaney