Patents by Inventor Paul R. Baukema

Paul R. Baukema 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).

  • Coreactants for polyurea coatings
    Patent number: 10703933
    Abstract: A method to accelerate cure of a multicomponent coating composition is described herein, including the steps of providing an isocyanate and an isocyanate-reactive compound, and replacing a portion of the isocyanate-reactive compound with a compound of formula I:
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: July 7, 2020
    Assignee: The Sherwin-Williams Company
    Inventors: Paul R. Baukema, Sanjay Luthra
  • Coreactants for Polyurea Coatings
    Publication number: 20150105517
    Abstract: A method to accelerate cure of a multicomponent coating composition is described herein, including the steps of providing an isocyanate and an isocyanate-reactive compound, and replacing a portion of the isocyanate-reactive compound with a compound of formula I:
    Type: Application
    Filed: December 16, 2014
    Publication date: April 16, 2015
    Applicant: Valspar Sourcing, Inc.
    Inventors: Paul R. Baukema, Sanjay Luthra
  • Process for preparing low formaldehyde polyacetal containing coating
    Patent number: 5155170
    Abstract: The instant invention involves a process for forming a low formaldehyde, essentially color-free coating composition by applying the composition preferably to a wood substrate and curing. The composition comprises a blend of a polyhydroxy-containing polymer, an hexaalkoxymethylolmelamine, a polyacetal having the formula: ##STR1## wherein R is C.sub.1 -C.sub.3 and A is C.sub.1 -C.sub.20 allyl or aryl and an acid catalyst. The coating compositions of the instant invention exhibit extremely low color and give off a significantly reduced amount of formaldehyde when cured in comparison to conventional prior art, acid catalyzed melamine/formaldehyde cured coatings.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: October 13, 1992
    Assignee: Akzo Coatings, Inc.
    Inventors: Paul R. Baukema, Milton J. Kaelin, Donald W. Waltrip, Kenneth M. Znidersic
  • Low formaldehyde polyacetal containing coating
    Patent number: 5102954
    Abstract: The instant invention involves a process for forming a low formaldehyde, essentially color-free coating composition by applying the composition preferably to a wood substrate and curing. The composition comprises a blend of a polyhydroxy-containing polymer, an hexaalkoxymethylolmelamine, a polyacetal having the formula: ##STR1## wherein R is C.sub.1 -C.sub.3 and A is C.sub.1 -C.sub.20 allyl or aryl and an acid catalyst. The coating compositions of the instant invention exhibit extremely low color and give off a significantly reduced amount of formaldehyde when cured in comparison to conventional prior art, acid catalyzed melamine/formaldehyde cured coatings.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: April 7, 1992
    Inventors: Paul R. Baukema, Milton J. Kaelin, Donald W. Waltrip, Kenneth M. Znidersic