Patents by Inventor Robert Louis Ferenz

Robert Louis Ferenz 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).

  • Sealant and adhesive using green prepolymer
    Patent number: 9309439
    Abstract: A polyurethane prepolymer comprising the reaction product of a reactant formulation comprising a polyol entirely derived from a natural oil; a natural oil-petroleum blend polyol; an isocyanate, at least one catalyst, drying agent, and plasticizer, wherein the prepolymer has a bio-based content of from about 15% to about 75% by weight. The prepolymer may be used in adhesive, or sealant compositions.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: April 12, 2016
    Assignee: Construction Research & Technology GmbH
    Inventors: Jyothi Thazhakuzhy Varkey, Jayesh Neginbhai-Patel, Robert Louis Ferenz, Patrick Knoll
  • Reduction in modulus of polyurethane sealants and adhesives
    Patent number: 9080087
    Abstract: Low modulus, polyurethane sealant or adhesive compositions and a method of reducing the modulus of a polyurethane sealant or adhesive composition, including adding a modulus reducing additive of at least one of rosin esters, hydrogenated rosin esters, or mixtures thereof, to a sealant or adhesive composition including a polyurethane prepolymer, optionally having a bio-based content of from about 15% to about 75% by weight.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: July 14, 2015
    Assignee: Construction Research & Technology GmbH
    Inventors: Jyothi Thazhakuzhy Varkey, Patrick Knoll, Robert Louis Ferenz, Eric S. Wymer
  • Sealant and Adhesive Using Green Prepolymer
    Publication number: 20130303690
    Abstract: A polyurethane prepolymer comprising the reaction product of a reactant formulation comprising a polyol entirely derived from a natural oil; a natural oil-petroleum blend polyol; an isocyanate, at least one catalyst, drying agent, and plasticizer, wherein the prepolymer has a bio-based content of from about 15% to about 75% by weight. The prepolymer may be used in adhesive, or sealant compositions.
    Type: Application
    Filed: July 18, 2011
    Publication date: November 14, 2013
    Applicant: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
    Inventors: Jyothi Thazhakuzhy Varkey, Jayesh Neginbhai-Patel, Robert Louis Ferenz, Patrick Knoll
  • Reduction In Modulus of Polyurethane Sealants and Adhesives
    Publication number: 20130267637
    Abstract: Low modulus, polyurethane sealant or adhesive compositions and a method of reducing the modulus of a polyurethane sealant or adhesive composition, including adding a modulus reducing additive of at least one of rosin esters, hydrogenated rosin esters, or mixtures thereof, to a sealant or adhesive composition including a polyurethane prepolymer, optionally having a bio-based content of from about 15% to about 75% by weight.
    Type: Application
    Filed: July 18, 2011
    Publication date: October 10, 2013
    Applicant: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
    Inventors: Jyothi Thazhakuzhy Varkey, Patrick Knoll, Robert Louis Ferenz, Eric S. Wymer