Patents by Inventor Pierre-Andre Buetikofer

Pierre-Andre Buetikofer 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).

  • Low-viscosity epoxy resin composition with low blushing
    Patent number: 8703844
    Abstract: A two-component epoxy resin composition, including: a resin component which includes at least one epoxy resin and at least one aldehyde, and a hardener component which includes at least one polyamine having at least one primary amino group.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: April 22, 2014
    Assignee: Sika Technology AG
    Inventors: Urs Burckhardt, Ursula Stadelmann, Pierre-André Bütikofer
  • Water soluble amine and uses thereof
    Patent number: 8524807
    Abstract: Compounds VB of the formula (I) or (II), said compounds being particularly suitable as curing agents for epoxide resins. The compounds can be produced easily and rapidly. They can be used in the form of aqueous curing agents and form stabile aqueous emulsions in particular. This facilitates the formulation of ECC compounds for use primarily as coatings.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: September 3, 2013
    Assignee: Sika Technology AG
    Inventor: Pierre-André Bütikofer
  • Moisture-hardening compositions containing silane-functional polymers and aminosilane adducts
    Patent number: 8399102
    Abstract: The current invention relates to a moisture-hardening composition that contains, in addition to a silane-functional polymer with end groups of formula (I), a reaction product that can be manufactured from an amino silane with primary amino groups and an alkene that is free of silane groups. The compositions are characterized by improved expandability with concurrent high reactivity, good adhesion characteristics, and high tear strength and are suited especially for use as elastic bonding substance or sealant.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: March 19, 2013
    Assignee: Sika Technology AG
    Inventors: Marcel Oertli, Barbara Jucker, Ueli Pfenninger, Pierre-André Bütikofer
  • LOW-VISCOSITY EPOXY RESIN COMPOSITION WITH LOW BLUSHING
    Publication number: 20120270967
    Abstract: A two-component epoxy resin composition, including: a resin component which includes at least one epoxy resin and at least one aldehyde, and a hardener component which includes at least one polyamine having at least one primary amino group.
    Type: Application
    Filed: June 8, 2012
    Publication date: October 25, 2012
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Urs BURCKHARDT, Ursula STADELMANN, Pierre-André BÜTIKOFER
  • Moisture-curing compositions containing silane-functional polymers and aminosilane adducts with good adhesive properties
    Patent number: 8012302
    Abstract: Moisture-curing compositions include at least one silane-functional polymer P with at least two terminal groups of formula (I) and at least one reaction product R which is produced from at least one aminosilane AS with at least one primary amino group and at least one silane group-free alkene M which is capable of entering in 1,4 addition reactions with primary amino groups. The compositions have improved adhesive properties and are especially suitable for use as adhesives, sealing materials or coatings, especially as elastic adhesive or sealing materials.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: September 6, 2011
    Assignee: Sika Technology AG
    Inventors: Barbara Jucker, Marcel Oertli, Pierre-André Buetikofer, Urs Burckhardt
  • WATER SOLUBLE AMINE AND USES THEREOF
    Publication number: 20110166259
    Abstract: Compounds VB of the formula (I) or (II), said compounds being particularly suitable as curing agents for epoxide resins. The compounds can be produced easily and rapidly. They can be used in the form of aqueous curing agents and form stabile aqueous emulsions in particular. This facilitates the formulation of ECC compounds for use primarily as coatings.
    Type: Application
    Filed: June 12, 2009
    Publication date: July 7, 2011
    Applicant: SIKA TECHNOLOGY AG
    Inventor: Pierre-André Bütikofer
  • Moisture-Curing Compositions Containing Silane-Functional Polymers and Aminosilane Adducts With Good Adhesive Properties
    Publication number: 20090081470
    Abstract: Moisture-curing compositions include at least one silane-functional polymer P with at least two terminal groups of formula (I) and at least one reaction product R which is produced from at least one aminosilane AS with at least one primary amino group and at least one silane group-free alkene M which is capable of entering in 1,4 addition reactions with primary amino groups. The compositions have improved adhesive properties and are especially suitable for use as adhesives, sealing materials or coatings, especially as elastic adhesive or sealing materials.
    Type: Application
    Filed: January 24, 2007
    Publication date: March 26, 2009
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Barbara Jucker, Marcel Oertli, Pierre-Andre Buetikofer, Urs Burckhardt