Patents by Inventor Felix D. Mai

Felix D. Mai 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).

  • Polyurethane adhesive film
    Patent number: 11802226
    Abstract: A thin self-supporting adhesive film is claimed that includes a first polyurethane and a solid surface-deactivated isocyanate.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: October 31, 2023
    Assignee: H.B. Fuller Company
    Inventors: Felix D. Mai, Brian W. Carlson
  • Reactive adhesive with enhanced adhesion to metallic surfaces
    Patent number: 9957427
    Abstract: Disclosed is an aqueous adhesive composition including a surface-deactivated solid isocyanate and a blend of two different polyurethanes. A method of making an article that includes a coated adhesive layer and article made thereby are also disclosed.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: May 1, 2018
    Assignee: H.B. Fuller Company
    Inventors: Brian W. Carlson, Rituparna Paul, Mutombo J. Muvundamina, Felix D. Mai, David B. Malcolm
  • Reactive film adhesives with enhanced adhesion to metallic surfaces
    Patent number: 9944834
    Abstract: Disclosed is a self-supporting, heat curable adhesive film including a surface-deactivated solid isocyanate and a blend of two different polyurethanes. A method of making an article that includes the adhesive film and article made thereby are also disclosed.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: April 17, 2018
    Assignee: H.B. Fuller Company
    Inventors: Brian W. Carlson, Rituparna Paul, Mutombo J. Muvundamina, Felix D. Mai
  • Tacky, heat curable multi-layer adhesive films
    Patent number: 9481814
    Abstract: Disclosed is a multi-layer adhesive film including a heat curable adhesive film and a first tacky adhesive composition disposed on the first major surface of the heat curable adhesive film. The heat curable adhesive film includes a surface-deactivated solid isocyanate and a polyurethane that includes functional groups that are reactive with isocyanate. A method of making an article that includes the multi-layer adhesive film and article made thereby are also disclosed.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: November 1, 2016
    Inventors: Mutombo J. Muvundamina, Rituparna Paul, Felix D. Mai, Brian W. Carlson
  • REACTIVE ADHESIVE WITH ENHANCED ADHESION TO METALLIC SURFACES
    Publication number: 20160168434
    Abstract: Disclosed is an aqueous adhesive composition including a surface-deactivated solid isocyanate and a blend of two different polyurethanes. A method of making an article that includes a coated adhesive layer and article made thereby are also disclosed.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 16, 2016
    Inventors: Brian W. Carlson, Rituparna Paul, Mutombo J. Muvundamina, Felix D. Mai, David B. Malcolm
  • REACTIVE FILM ADHESIVES WITH ENHANCED ADHESION TO METALLIC SURFACES
    Publication number: 20160168423
    Abstract: Disclosed is a self-supporting, heat curable adhesive film including a surface-deactivated solid isocyanate and a blend of two different polyurethanes. A method of making an article that includes the adhesive film and article made thereby are also disclosed.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 16, 2016
    Inventors: Brian W. Carlson, Rituparna Paul, Mutombo J. Muvundamina, Felix D. Mai
  • HEAT CURABLE ADHESIVE FILM
    Publication number: 20160046775
    Abstract: Disclosed is a one layer adhesive film including a heat curable adhesive and a second adhesive composition. The heat curable adhesive includes a surface-deactivated solid isocyanate and a polymer that includes functional groups that are reactive with isocyanate. A method of making an article that includes the adhesive film and article made thereby are also disclosed.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 18, 2016
    Inventors: FELIX D. MAI, MUTOMBO J. MUVUNDAMINA, BRIAN W. CARLSON, RITUPARNA PAUL
  • TACKY, HEAT CURABLE MULTI-LAYER ADHESIVE FILMS
    Publication number: 20150240128
    Abstract: Disclosed is a multi-layer adhesive film including a heat curable adhesive film and a first tacky adhesive composition disposed on the first major surface of the heat curable adhesive film. The heat curable adhesive film includes a surface-deactivated solid isocyanate and a polyurethane that includes functional groups that are reactive with isocyanate. A method of making an article that includes the multi-layer adhesive film and article made thereby are also disclosed.
    Type: Application
    Filed: February 26, 2015
    Publication date: August 27, 2015
    Inventors: Mutombo J. Muvundamina, Rituparna Paul, Felix D, Mai, Brian W. Carlson
  • POLYURETHANE ADHESIVE FILM
    Publication number: 20150037555
    Abstract: A thin self-supporting adhesive film is claimed that includes a first polyurethane and a solid surface-deactivated isocyanate.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Inventors: FELIX D. MAI, BRIAN W. CARLSON
  • Tamper-indicating retroreflective article
    Publication number: 20020142121
    Abstract: A tamper-indicating article for attachment to a surface of a substrate comprises (a) a retroreflective sheet and (b) an adhesive layer, wherein the retroreflective sheet comprises a reflective layer, a non-silicone-based release layer adjacent to the reflective layer, and a layer of lenses overlying said release layer and positioned in optical connection with said reflective layer so as to produce retroreflection. The article exhibits an interlayer cohesive failure at the release layer of the retroreflective sheet when an attempt is made to remove the article from the substrate surface.
    Type: Application
    Filed: January 16, 2002
    Publication date: October 3, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: Petra Hingsen-Gehrmann, Felix D. Mai