Patents by Inventor Sharon P. Lee

Sharon P. Lee 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: 7062421
    Abstract: This invention relates to a process for using computerized molecular interaction modeling to predict the adhesive interactions between a substrate and a polymer. The molecular modeling method may be used to predict and select optimal adhesion promoting monomers for use in latex polymer coatings, providing the best wet adhesion to alkyd-coated substrates. The molecular modeling method could also predict substrate polymer pairs having the least affinity, and thus the most useful as a release liner.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: June 13, 2006
    Assignee: Celanese International Corporation
    Inventors: Solomon Jacobson, Rajeev Farwaha, Sharon P. Lee
  • Publication number: 20030158717
    Abstract: This invention relates to a process for using computerized molecular interaction modeling to predict the adhesive interactions between a substrate and a polymer. The molecular modeling method may be used to predict and select optimal adhesion promoting monomers for use in latex polymer coatings, providing the best wet adhesion to alkyd-coated substrates. The molecular modeling method could also predict substrate polymer pairs having the least affinity, and thus the most useful as a release liner.
    Type: Application
    Filed: June 17, 2002
    Publication date: August 21, 2003
    Inventors: Solomon Jacobson, Rajeev Farwaha, Sharon P. Lee
  • Patent number: 6291580
    Abstract: A polyurethane, soluble or dispersible in water, prepared from organic diisocyanate diols or other isocyanate reactive materials and a 2,2-hydroxymethyl-substituted carboxylic acid diol neutralized with a cosmetically acceptable organic or inorganic base and formulated into a hair fixative composition containing low amounts of volatile organic solvent. The present invention is also directed to a process for the preparation of polyurethanes comprising dispersing the polyurethane after at least 70% of the theoretical isocyanate reaction has taken place, but before completion of the reaction.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: September 18, 2001
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Pravin K. Kukkala, Sharon P. Lee, Andrew J. Kielbania, Jr., Melissa J. Vitale
  • Patent number: 6140388
    Abstract: Abrasive articles comprising a cured thermosetting binder and abrasive grains. The binder is prepared with a poly-functional molecule comprising at least two functional groups selected from the group consisting of carboxyl and anhydride, and a crosslinking agent which is selected from the group consisting of a mono(hydroxyalkyl)urea comprising a single urea group, a single hydroxyl group, and at least two carbon atoms disposed between the urea group and the hydroxyl group, and 2-oxazolidone. The abrasive articles comprise bonded, nonwoven or coated abrasive articles.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: October 31, 2000
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: David R. Nass, Andrew J. Kielbania, Jr., Sharon P. Lee, Steven P. Pauls, Sr.
  • Patent number: 6051646
    Abstract: Abrasive articles comprising a cured thermosetting binder and abrasive grains. The binder is prepared with a poly-functional molecule which contains at least two functional groups selected from the group consisting of carboxyl, anhydride and amine, and a (hydroxyalkyl)urea crosslinking agent containing a single urea group, at least two hydroxyl groups, and have at least two carbon atoms disposed between the urea group and each of the hydroxyl groups. The abrasive articles comprise bonded, nonwoven or coated abrasive articles.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: April 18, 2000
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: David R. Nass, Andrew J. Kielbania, Jr., Sharon P. Lee
  • Patent number: 6031041
    Abstract: A polyurethane hybrid dispersion comprising a carboxylated polyurethane dispersion and a functionalized polymer. The functionalized polymer is the emulsion polymerization product of an ethylenically unsaturated monomer and from 0.1 to 5 pphm of a ureido functional comonomer, wherein the functionalized polymer is prepared in the presence of the carboxylated polyurethane dispersion. he polyurethane hybrid dispersions of the invention exhibit improved wet adhesion to alkyd substrates. Moreover, the polyurethane hybrid dispersions provide the treated substrates with improved solvent resistance.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: February 29, 2000
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Jocelyn K. Chung, Sharon P. Lee, Rajeev Farwaha
  • Patent number: 5968494
    Abstract: A polyurethane, soluble or dispersible in water, prepared from organic diisocyanate diols or other isocyanate reactive materials and a 2,2-hydroxymethyl-substituted carboxylic acid diol neutralized with a cosmetically acceptable organic or inorganic base and formulated into a hair fixative composition containing low amounts of volatile organic solvent. The present invention is also directed to a process for the preparation of polyurethanes comprising dispersing the polyurethane after at least 70% of the theoretical isocyanate reaction has taken place, but before completion of the reaction.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: October 19, 1999
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Pravin K. Kukkala, Sharon P. Lee, Andrew J. Kielbania, Jr., Melissa J. Vitale
  • Patent number: 5945473
    Abstract: The invention relates to methods of preparing aqueous polymeric dispersions which contain a water-dispersible polyurethane, a polymer prepared from an ethylenically unsaturated monomer and at least one additional polymer which is capable of enhancing certain properties of products which utilize the aqueous dispersions of the present invention, wherein the ethylenically unsaturated monomer is polymerized in the presence of the water-dispersible polyurethane dispersion and the additional polymer and in the absence of a surfactant and an organic solvent, to aqueous compositions containing the aqueous polymeric dispersions and to articles of manufacture prepared from the aqueous compositions containing the aqueous polymeric dispersions.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: August 31, 1999
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Andrew J. Kielbania, Joseph G. Kleiner, Michael T. Sarkis, Antonios Tontisakis, Sharon P. Lee
  • Patent number: 5895804
    Abstract: Polysaccharide based thermosetting systems and compositions which utilize such thermosets are disclosed. The composition comprises a polysaccharide having a weight average molecule weight of at least 10,000 and a polycarboxylated polymer having at least two carboxylic acid functional groups and a weight average molecular weight of at least 1,000.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: April 20, 1999
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Sharon P. Lee, Steven P. Pauls, Sr., Daniel B. Solarek
  • Patent number: 5840822
    Abstract: Mono(hydroxyalkyl)urea and 2-oxazolidone crosslinking agents and compositions which utilize such crosslinking agents are disclosed. The mono(hydroxyalkyl)urea crosslinking agents contain a single urea group, a single hydroxyl group, and have at least two carbon atoms disposed between the urea group and the hydroxyl group. The compositions contain a poly-functional molecule which contains at least two functional groups selected from the group consisting of carboxyl and anhydride.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: November 24, 1998
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Sharon P. Lee, Steven P. Pauls, Sr.