Patents by Inventor Craig E. Hamer

Craig E. Hamer 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).

  • Publication number: 20130184394
    Abstract: The methods of preparing hot melt processable pressure sensitive adhesives include combining an elastomeric (meth)acrylate random copolymer contained within a thermoplastic pouch and greater than 50 parts by weight per 100 parts by weight of hot melt processable elastomeric (meth)acrylate random co-polymer of at least one tackifying resin in a hot melt mixing apparatus, and mixing to form a hot melt processable pressure sensitive adhesive. The elastomeric (meth)acrylate random copolymer may contain branching agents and photosensitive crosslinking agents. The hot melt processable pressure sensitive adhesives can be used to prepare transfer tapes.
    Type: Application
    Filed: September 23, 2011
    Publication date: July 18, 2013
    Inventors: Andrew Satrijo, Megan P. Lehmann, Nathan B. Fong, Craig E. Hamer, John R. Jacobsen, Mark F. Ellis
  • Patent number: 8431668
    Abstract: Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: April 30, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Audrey A. Sherman, David B. Olson, Stephen A. Johnson, Craig E. Hamer, David S. Hays, Richard G. Hansen
  • Publication number: 20130102731
    Abstract: Grafted compounds are formed by reacting (1) a first compound having both an aziridinyl group and a polymeric group with (2) a second compound having at least one acidic group. This reaction results in the opening of the aziridinyl ring on the first compound by the acidic group on the second compound and the formation of an attachment group that connects polymeric group of the first compound to the second compound. In some embodiments, the second compound is a polymeric material having multiple acidic groups and the product of the reaction of the first compound with the second compound results in the formation of a grafted copolymer.
    Type: Application
    Filed: May 19, 2011
    Publication date: April 25, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jason D. Clapper, Kevin M. Lewandowski, Mark F. Ellis, Craig E. Hamer
  • Publication number: 20120175566
    Abstract: Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.
    Type: Application
    Filed: March 20, 2012
    Publication date: July 12, 2012
    Inventors: Audrey A. Sherman, David B. Olson, Stephen A. Johnson, Craig E. Hamer, David S. Hays, Richard G. Hansen
  • Patent number: 8202934
    Abstract: Packaged viscoelastic compositions comprising viscoelastic copolymers and a packaging material are disclosed. The viscoelastic copolymers are urea copolymers, which are the reaction product of polyisocyanates and polyamines. The packaged viscoelastic compositions are hot melt processable.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: June 19, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Audrey A. Sherman, Craig E. Hamer, Donald H. Lucast, Thomas E. Augustine, Wendi J. Winkler
  • Patent number: 8158739
    Abstract: Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: April 17, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Audrey A. Sherman, David B. Olson, Stephen A. Johnson, Craig E. Hamer, David S. Hays, Richard G. Hansen
  • Publication number: 20120004335
    Abstract: This disclosure provides (meth)acryloyl pressure-sensitive adhesive foams and foam articles having one or more of the following properties: small cells, uniform cell sizes, pressure sensitive adhesive compositions, compliance to irregular substrates and vibration damping, and shock absorbing properties.
    Type: Application
    Filed: June 22, 2011
    Publication date: January 5, 2012
    Inventors: Craig E. Hamer, Ilyess H. Romdhane, Andrew Satrijo, Thomas E. Augustine, Neil J. Fischer, Michael C. Martin, Robert B. Secor, Robert D. Waid, Sharon Wang
  • Publication number: 20110263798
    Abstract: Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.
    Type: Application
    Filed: June 29, 2011
    Publication date: October 27, 2011
    Inventors: Audrey A. Sherman, David B. Olson, Stephen A. Johnson, Craig E. Hamer, David S. Hays, Richard G. Hansen
  • Patent number: 8013098
    Abstract: Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: September 6, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Audrey A. Sherman, David B. Olson, Stephen A. Johnson, Craig E. Hamer, David S. Hays, Richard G. Hansen
  • Publication number: 20110178250
    Abstract: The present application is directed to a non-aqueous composition. The composition comprises a blend of an acidic copolymer derived from a first group of monomers comprising at least one acidic monomer, and a basic copolymer derived from a second group of monomers comprising at least one basic monomer. The basic copolymer may comprise an amide functionality. In some embodiments, the composition comprises an acidic (meth)acrylic copolymer having a Tg less than 0° C., which is derived from a first group of monomers comprising at least one acidic monomer, and a basic (meth)acrylic copolymer having a Tg less than 0° C., which is derived from a second group of monomers comprising at least one basic monomer. Additionally, the composition may comprise a minimum of 0.10 moles of acid/base pairs per kilogram of composition.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 21, 2011
    Inventors: Ronald S. Steelman, Michael P. Daniels, David J. Yarusso, Craig E. Hamer
  • Publication number: 20110123798
    Abstract: Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.
    Type: Application
    Filed: February 4, 2011
    Publication date: May 26, 2011
    Inventors: Audrey A. Sherman, David B. Olson, Stephen A. Johnson, Craig E. Hamer, David S. Hays, Richard G. Hansen
  • Patent number: 7915370
    Abstract: Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: March 29, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Audrey A. Sherman, David B. Olson, Stephen A. Johnson, Craig E. Hamer, David S. Hays, Richard G. Hansen
  • Publication number: 20100163809
    Abstract: Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.
    Type: Application
    Filed: March 4, 2010
    Publication date: July 1, 2010
    Inventors: Audrey A. Sherman, David B. Olson, Stephen A. Johnson, Craig E. Hamer, David S. Hays, Richard G. Hansen
  • Patent number: 7705101
    Abstract: Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: April 27, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Audrey A. Sherman, David B. Olson, Stephen A. Johnson, Craig E. Hamer, David S. Hays, Richard G. Hansen
  • Patent number: 7705103
    Abstract: Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a precursor having at least one polydiorganosiloxane segment and at least two oxalyamino groups. The polydiorganosiloxane polyoxamide block copolymers are of the (AB)n type.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: April 27, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Audrey A. Sherman, Stephen A. Johnson, Craig E. Hamer, Wendi J. Winkler
  • Publication number: 20090036598
    Abstract: Packaged viscoelastic compositions comprising viscoelastic copolymers and a packaging material are disclosed. The viscoelastic copolymers are urea copolymers, which are the reaction product of polyisocyanates and polyamines. The packaged viscoelastic compositions are hot melt processable.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 5, 2009
    Inventors: Audrey A. Sherman, Craig E. Hamer, Donald H. Lucast, Thomas E. Augustine, Wendi J. Winkler
  • Publication number: 20080318057
    Abstract: Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 25, 2008
    Inventors: Audrey A. Sherman, David B. Olson, Stephen A. Johnson, Craig E. Hamer, David S. Hays, Richard G. Hansen
  • Publication number: 20080318059
    Abstract: Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a precursor having at least one polydiorganosiloxane segment and at least two oxalyamino groups. The polydiorganosiloxane polyoxamide block copolymers are of the (AB)n type.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 25, 2008
    Inventors: Audrey A. Sherman, Stephen A. Johnson, Craig E. Hamer, Wendi J. Winkler
  • Patent number: 6928794
    Abstract: A machine for forming filled sealed pouches from a continuously moving sealable web of material includes a first sealing station for forming a longitudinal seal along a side edge of the web, and a horizontal sealing station for forming a plurality of transverse seals in the web. The horizontal sealing station includes a pair of conveyors each carrying jaws that mate along a sealing path to form the transverse seals. A method of forming filled sealed pouches from a continuously moving sealable web of material is also described.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: August 16, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Craig E. Hamer, John F. Macklin, Gary W. Schukar, Jeffery N. Jackson, Neil J. Schwartzbauer
  • Patent number: 6294249
    Abstract: Methods for preparing viscoelastic compositions (e.g., adhesives such as hot melt adhesives) in which a pre-viscoelastic composition (e.g., a pre-adhesive composition) is combined with a packaging material and then polymerized.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: September 25, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Craig E. Hamer, John D. Moon, Thomas A. Kotnour