Patents by Inventor David William Whitman

David William Whitman 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: 7799943
    Abstract: Homogeneously dispersed solid reaction promoters having an average particle size from 0.01 ?m to 500 ?m are disclosed for preparing curable mixtures of at least one Michael donor and at least one Michael acceptor. The resulting curable mixtures are useful as coatings, adhesives, sealants and elastomers.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: September 21, 2010
    Assignee: Rohm and Haas Company
    Inventors: Pankaj V. Shah, David E. Vietti, David William Whitman
  • Publication number: 20090275713
    Abstract: Homogeneously dispersed solid reaction promoters having an average particle size from 0.01 ?m to 500 ?m are disclosed for preparing curable mixtures of at least one Michael donor and at least one Michael acceptor. The resulting curable mixtures are useful as coatings, adhesives, sealants and elastomers.
    Type: Application
    Filed: May 30, 2006
    Publication date: November 5, 2009
    Inventors: Pankaj V. Shah, David E. Vietti, David William Whitman
  • Patent number: 7514528
    Abstract: Functional mixtures and polymer compositions are provided, each comprising at least one multi-functional Michael acceptor, at least one multi-functional Michael donor, in which at least 20% of either the donor or acceptor or a combination of the donor and acceptor is derived from bio-based materials and at least one catalyst.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: April 7, 2009
    Assignee: Rohm and Haas Company
    Inventors: Thomas Frederick Kauffman, David William Whitman, Michael John Zajaczkowski, David Elmer Vietti
  • Patent number: 7396429
    Abstract: A functional mixture is provided that comprises at least one multi-functional Michael acceptor, at least one multi-functional Michael donor, and at least one weakly basic catalyst.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: July 8, 2008
    Assignee: Rohm and Haas Company
    Inventors: Ronald Scott Beckley, Thomas Frederick Kauffman, Michael John Zajaczkowski, David William Whitman
  • Patent number: 7056408
    Abstract: A method is provided for bonding substrates using a homogeneous fluid and a polymerizing condition. Also provided are composite articles formed by such a method. The composite articles show improved adhesion between the substrates and the adhesive composition over a wide range of temperatures.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: June 6, 2006
    Assignee: Rohm and Haas Company
    Inventor: David William Whitman
  • Patent number: 6939922
    Abstract: Provided are improved coatings, polymeric dispersions, and polymeric composites, which include crosslinked polymeric nanoparticles (hereafter “PNPs”). Also provided are methods for forming improved coatings, polymeric dispersions, and polymeric composites, which include PNPs. The PNPs have polymerized units of at least one multi-ethylenically-unsaturated monomer have a mean diameter of from 1 to 50 nanometers. PNPs having polymerized units of at least one multi-ethylenically-unsaturated monomer and at least one surface-active monomer are also provided.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: September 6, 2005
    Assignee: ROHM and HAAS Company
    Inventors: Ronald Scott Beckley, Robert Mitchell Blankenship, Albert Benner Brown, James Tinney Brown, Shang-Jaw Chiou, Anton Georges El A'mma, Susan Jane Fitzwater, Robert Howard Gore, Eric Jon Langenmayr, Dennis Paul Lorah, Warren Harvey Machleder, James Watson Neely, George Harvey Redlich, Curtis Schwartz, Frederick James Schindler, Robert Victor Slone, David William Whitman, Mark Robert Winkle
  • Patent number: 6884843
    Abstract: A method of preparing a cured laminate employing electron beam radiation is provided. The cured laminate is prepared from an uncured laminate including a prepolymer composition containing oligomer, tackifying resin, and optionally, monomer. Also provided are a prepolymer composition and an article including the cured laminate prepared by the method of this invention. The method is useful for preparing cured laminates such as flexible laminates for food packaging.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: April 26, 2005
    Assignee: Rohm and Haas Company
    Inventors: Thomas Frederick Kauffman, David William Whitman
  • Publication number: 20040213846
    Abstract: An extended release dosage form and an extended release polymeric dispenser containing polymer-clay nanocomposite are provided. The polymer-clay nanocomposite contains exfoliated clay platelets dispersed in a polymer matrix. The extended release dosage form contains active ingredient in the polymer-clay nanocomposite. The extended release polymeric dispenser contains a reservoir of an active ingredient partially or completely encapsulated by a polymer-clay nanocomposite layer. Also provided are a method of providing release of an active ingredient from the extended release dosage form and a method or providing release of an active ingredient from the extended release polymeric dispenser. The extended release dosage form and the extended release polymeric dispenser are useful for the application of pharmaceutical compounds, agricultural compounds, and perfumes.
    Type: Application
    Filed: March 24, 2004
    Publication date: October 28, 2004
    Inventors: Gary David Greenblatt, Lyn Hughes, David William Whitman
  • Publication number: 20040106693
    Abstract: A curable composition containing at least one ethylenically unsaturated compound and at least one liquid elastomer is provided. The curable composition is useful for preparing a cold seal adhesive. A method is provided for preparing the cold seal adhesive, which includes the use of electron beam radiation to initiate polymerization of the curable composition.
    Type: Application
    Filed: November 25, 2003
    Publication date: June 3, 2004
    Inventors: Thomas Frederick Kauffman, David William Whitman
  • Publication number: 20040097630
    Abstract: Curable clay compositions containing at least one ethylenically unsaturated compound and exfoliated clay platelets are provided. The curable clay compositions are useful for preparing articles having improved barrier properties to oxygen, moisture, or odor such as flexible laminates. Methods including polymerization of the curable clay composition using electron beam radiation are provided and are suitable for preparing laminates or coatings with improved barrier properties. Also provided is a method for preparing the curable clay composition using a moving media mill.
    Type: Application
    Filed: October 22, 2003
    Publication date: May 20, 2004
    Inventors: David William Whitman, Thomas Frederick Kauffman
  • Publication number: 20040045662
    Abstract: A method is provided for bonding substrates using a homogeneous fluid and a polymerizing condition. Also provided are composite articles formed by such a method. The composite articles show improved adhesion between the substrates and the adhesive composition over a wide range of temperatures.
    Type: Application
    Filed: August 28, 2003
    Publication date: March 11, 2004
    Inventor: David William Whitman
  • Publication number: 20030232187
    Abstract: Provided is a curable fluid with relatively low viscosity capable of forming a polymeric composition, subsequent to exposure to cure conditions. Also provided are coated articles made of substrates coated by such compositions, and further provided are composite articles made of substrates bonded by such compositions; further provided are methods of making such coated and composite articles.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 18, 2003
    Inventors: Thomas Frederick Kauffman, David William Whitman
  • Patent number: 6645562
    Abstract: A method of preparing a curable coating and a method of curing the curable coating are disclosed. The curable composition from which the curable coating is prepared may be applied to the surface of a substrate in neat form or in aqueous medium to produce the coating. Curing of the curable coating may be accomplished by chemical generation of free radicals, by electrochemical generation of free radicals, by electron beam, by photochemical generation of free radicals, or by other electromagnetic irradiation.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: November 11, 2003
    Inventors: Gary David Greenblatt, Ward Thomas Brown, Michael Damian Bowe, Richard Foster Merritt, Ronald Scott Beckley, Barry Clifford Lange, Robert Wilczynski, David William Whitman, Martha Harbaugh Wolfersberger
  • Patent number: 6566549
    Abstract: A continuous process for oligomers which do not contain, as polymerized units, carboxylic acid-containing monomers and their salts, including the steps of: (1) forming a reaction mixture, substantially free of carboxylic acid-containing monomers and their salts, containing: (i) 0.5 to 99.95% by weight of the reaction mixture of at least one ethylenically unsaturated monomer; and (ii) 0.05 to 25% by weight, based on the weight of the ethylenically unsaturated monomer, of at least one free-radical initiator; and (2) continuously passing the reaction mixture through a heated zone wherein the reaction mixture is maintained at a temperature of at least 150° C. and a pressure of at least 30 bars for from 0.1 seconds to 4 minutes to form terminally-unsaturated oligomers. In addition, processes for forming oligomers of vinyl acetate and oligomers of vinyl alcohol are disclosed. Mixtures of fully saturated and terminally unsaturated oligomers are also disclosed.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: May 20, 2003
    Assignee: Rohm and Haas Company
    Inventors: Gary David Greenblatt, Barry Clifford Lange, Michael Damian Bowe, Richard Foster Merritt, Robert Wilczynski, Gary Robert Larson, Lori Marie Petrovich, David William Whitman
  • Publication number: 20030069363
    Abstract: A method of preparing a curable coating and a method of curing the curable coating are disclosed. The curable composition from which the curable coating is prepared may be applied to the surface of a substrate in neat form or in aqueous medium to produce the coating. Curing of the curable coating may be accomplished by chemical generation of free radicals, by electrochemical generation of free radicals, by electron beam, by photochemical generation of free radicals, or by other electromagnetic irradiation.
    Type: Application
    Filed: June 27, 2002
    Publication date: April 10, 2003
    Inventors: Gary David Greenblatt, Ward Thomas Brown, Michael Damian Bowe, Richard Foster Merritt, Ronald Scott Beckley, Barry Clifford Lange, Robert Wilczynski, David William Whitman, Martha Harbaugh Wolfersberger
  • Publication number: 20030066600
    Abstract: A method of preparing a cured laminate employing electron beam radiation is provided. The cured laminate is prepared from an uncured laminate including a prepolymer composition containing oligomer, tackifying resin, and optionally, monomer. Also provided are a prepolymer composition and an article including the cured laminate prepared by the method of this invention. The method is useful for preparing cured laminates such as flexible laminates for food packaging.
    Type: Application
    Filed: April 30, 2002
    Publication date: April 10, 2003
    Inventors: Thomas Frederick Kauffman, David William Whitman
  • Publication number: 20030059599
    Abstract: Provided are improved coatings, polymeric dispersions, and polymeric composites, which include PNPs. Also provided are methods for forming improved coatings, polymeric dispersions, and polymeric composites, which include PNPs. The PNPs have polymerized units of at least one multi-ethylenically-unsaturated monomer have a mean diameter of from 1 to 50 nanometers. PNPs having polymerized units of at least one multi-ethylenically-unsaturated monomer and at least one surface-active monomer are also provided.
    Type: Application
    Filed: March 15, 2002
    Publication date: March 27, 2003
    Inventors: Ronald Scott Beckley, Robert Mitchell Blankenship, Albert Benner Brown, James Tinney Brown, Shang-Jaw Chiou, Anton Georges El A'mma, Susan Jane Fitzwater, Robert Howard Gore, Eric Jon Langenmayr, Dennis Paul Lorah, Warren Harvey Machleder, James Watson Neely, George Harvey Redlich, Curtis Schwartz, Frederick James Schindler, Robert Victor Slone, David William Whitman, Mark Robert Winkle
  • Patent number: 6451951
    Abstract: The present invention relates to an oligomer with a semi-telechelic nitrogen-functionality and at least one ethylenic unsaturation pendant to the backbone of the oligomer. In addition, a process is provided to prepare the semi-telechelic nitrogen-functional oligomer. The semi-telechelic nitrogen-functional oligomer is useful as a dispersant for pigments in radiation curable formulations.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: September 17, 2002
    Assignee: Rohm and Haas Company
    Inventors: Ronald Scott Beckley, Barry Clifford Lange, David William Whitman, Jo Ann Arceneaux, Michael Christopher Kramer, Peter Thomas Weissman
  • Publication number: 20020111448
    Abstract: A continuous process for oligomers which do not contain, as polymerized units, carboxylic acid-containing monomers and their salts, including the steps of:
    Type: Application
    Filed: December 19, 2001
    Publication date: August 15, 2002
    Inventors: Gary David Greenblatt, Barry Clifford Lange, Michael Damian Bowe, Richard Foster Merritt, Robert Wilczynski, Gary Robert Larson, Lori Marie Petrovich, David William Whitman
  • Publication number: 20020082371
    Abstract: A continuous process for oligomers which do not contain, as polymerized units, carboxylic acid-containing monomers and their salts, including the steps of:
    Type: Application
    Filed: December 19, 2001
    Publication date: June 27, 2002
    Inventors: Gary David Greenblatt, Barry Clifford Lange, Michael Damian Bowe, Richard Foster Merritt, Robert Wilczynski, Gary Robert Larson, Lori Marie Petrovich, David William Whitman