Patents by Inventor Paul Hattam

Paul Hattam 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: 7005143
    Abstract: A gel material and medical articles including such material, wherein the transparent gel material includes a polymerized poly(alkylene oxide) macromonomer that, prior to polymerization, is free-radically polymerizable, multifunctional (preferably difunctional), and has an average molecular weight of at least about 2000.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: February 28, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Ahmed S. Abuelyaman, Scott A. Burton, Duane Fansler, Babu N. Gaddam, Paul Hattam, Maureen A. Kavanagh, Kevin M. Lewandowski, Peter M. Seiler, Steven C. Stickels
  • Publication number: 20060039982
    Abstract: A gel material and medical articles including such material, wherein the transparent gel material includes a polymerized poly(alkylene oxide) macromonomer that, prior to polymerization, is free-radically polymerizable, multifunctional (preferably difunctional), and has an average molecular weight of at least about 2000.
    Type: Application
    Filed: October 21, 2005
    Publication date: February 23, 2006
    Inventors: Ahmed Abuelyaman, Scott Burton, Duane Fansler, Babu Gaddam, Paul Hattam, Maureen Kavanagh, Kevin Lewandowski, Peter Seiler, Steven Stickels
  • Publication number: 20030203011
    Abstract: A gel material and medical articles including such material, wherein the transparent gel material includes a polymerized poly(alkylene oxide) macromonomer that, prior to polymerization, is free-radically polymerizable, multifunctional (preferably difunctional), and has an average molecular weight of at least about 2000.
    Type: Application
    Filed: April 12, 2002
    Publication date: October 30, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Ahmed S. Abuelyaman, Scott A. Burton, Duane Fansler, Babu N. Gaddam, Paul Hattam, Maureen A. Kavanagh, Kevin M. Lewandowski, Peter M. Seiler, Steven C. Stickels
  • Patent number: 6630239
    Abstract: Disclosed is a composite pressure-sensitive adhesive comprising from about 95 to about 5 parts by weight of an acrylic pressure-sensitive adhesive; from about 5 to about 95 parts by weight of an at least partially soluble (in a solvent) polymer, and a compatibilizer present in the composite pressure-sensitive adhesive in an amount greater than 0 to about 10 parts by weight of the composite pressure-sensitive adhesive. The polymer is selected from the group consisting of a butadiene-containing polymer, an isoprene-containing polymer, a saturated olefin-containing polymer, and a styrene-containing polymer.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: October 7, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey J. Cernohous, Douglas A. Devens, Jr., Maria B. Urquiola, Paul Hattam, Patrick D. Hyde, Richard A. Kollaja
  • Publication number: 20020132925
    Abstract: Disclosed is a composite pressure-sensitive adhesive comprising from about 95 to about 5 parts by weight of an acrylic pressure-sensitive adhesive; from about 5 to about 95 parts by weight of an at least partially soluble (in a solvent) polymer, and a compatibilizer present in the composite pressure-sensitive adhesive in an amount greater than 0 to about 10 parts by weight of the composite pressure-sensitive adhesive. The polymer is selected from the group consisting of a butadiene-containing polymer, an isoprene-containing polymer, a saturated olefin-containing polymer, and a styrene-containing polymer.
    Type: Application
    Filed: February 5, 2002
    Publication date: September 19, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: Jeffrey J. Cernohous, Douglas A. Devens, Maria B. Urquiola, Paul Hattam, Patrick D. Hyde, Richard A. Kollaja
  • Patent number: 6379791
    Abstract: Disclosed is a composite pressure-sensitive adhesive comprising from about 95 to about 5 parts by weight of an acrylic pressure-sensitive adhesive; from about 5 to about 95 parts by weight of an at least partially soluble (in a solvent) polymer, and a compatibilizer present in the composite pressure-sensitive adhesive in an amount greater than 0 to about 10 parts by weight of the composite pressure-sensitive adhesive. The polymer is selected from the group consisting of a butadiene-containing polymer, an isoprene-containing polymer, a saturated olefin-containing polymer, and a styrene-containing polymer.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: April 30, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey J. Cernohous, Douglas A. Devens, Jr., Maria B. Urquiola, Paul Hattam, Patrick D. Hyde, Richard A. Kollaja
  • Patent number: 5840783
    Abstract: The present invention provides a pressure sensitive adhesive comprising the polymerization reaction product of starting materials comprising:(a) 50 to 100 parts by weight of at least one acrylic or methacrylic ester of a non-tertiary alkyl alcohol in which the alkyl group contains 4 to 20 carbon atoms;(b) 0 to 50 parts by weight of at least one reinforcing monomer, copolymerizable with component (a), the sum of (a) and (b) amounting to 100 parts by weight; and(c) 0.1 to 15 parts by weight, per 100 parts by weight of the sum of components (a) and (b), of a substantially soluble chlorinated polyolefin;said starting materials being substantially solvent-free.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: November 24, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Bradley S. Momchilovich, Michael A. Johnson, Paul Hattam, Mark D. Purgett, Albert I. Everaerts, Kevin Kaczorek
  • Patent number: 5741543
    Abstract: This invention relates to a process in which a composition is coated onto a substrate and crosslinked so as to form a PSA by means of polymerizing free radically polymerizable monomers from covalently attached pendent unsaturation in the polymer component of the composition. The coating can carried out by a wide variety of industrial methods because the process of the invention allows for compositions with a wide degree of possible viscosities.
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: April 21, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Louis E. Winslow, Greggory S. Bennett, Gaddam N. Babu, Paul Hattam, Michael L. Tumey, Bhaskar V. Velamakanni