Patents by Inventor James F. Engel

James F. Engel 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).

  • Method of rendering masonry materials water repellent with low VOC organoalkoxysilanes
    Patent number: 5112393
    Abstract: A composition and method for rendering a surface water repellent. The composition is a substantially solvent-free organoalkoxysilane having between two and nine silicon atoms per silane. An oleophobic organofluoro compound may be added to the composition in order to render the surface also oil repellent.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: May 12, 1992
    Assignee: ProSoCo, Inc.
    Inventors: James F. Engel, Gerald E. Boyer
  • .alpha.-substituted acrylic acid esters, their polymers and method of synthesizing same
    Patent number: 4876323
    Abstract: .alpha.-Substituted acrylic acid esters, their polymers and adhesives therefrom, and methods of synthesizing these compounds. The compounds of the invention are useful as intermediates in the synthesis of isocyanato esters and can be polymerized to form an effective, non-toxic adhesive. The method of the invention encompasses utilizing the adhesive composition in biomedical applications, such as joining live animal tissue. Other adhesive applications are contemplated for living tissue and inanimate objects. The compounds are also used as monomers which can be polymerized, used in conjunction with other monomers as adhesive compositions, cross-linking agents, dye acceptor additives to vinylic polymers and useful chemical intermediates. The method of the invention encompasses synthesizing the aforementioned monomers and intermediates. Methyl .alpha.-(ethoxycarbonamido)acrylate is synthesized from either DL-serine or methyl pyruvate.
    Type: Grant
    Filed: June 11, 1987
    Date of Patent: October 24, 1989
    Assignee: Midwest Research Institute
    Inventors: James F. Engel, Thomas J. Byerley, Howard W. Christie
  • .alpha.-substituted acrylic acid esters
    Patent number: 4704466
    Abstract: .alpha.-Substituted acrylic acid esters, their polymers and adhesives therefrom, and methods of synthesizing these compounds. The compounds of the invention are useful as intermediates in the synthesis of isocyanato esters and can be polymerized to form an effective, non-toxic adhesive. The method of the invention encompasses utilizing the adhesive composition in biomedical applications, such as joining live animal tissue. Other adhesive applications are contemplated for living tissue and inanimate objects. The compounds are also used as monomers which can be polymerized, used in conjunction with other monomers as adhesive compositions, cross-linking agents, dye acceptor additives to vinylic polymers and useful chemical intermediates. The method of the invention encompasses synthesizing the aformentioned monomers and intermediates. Methyl .alpha.-(ethoxycarbonamido)acrylate is synthesized from either DL-serine or methyl pyruvate.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: November 3, 1987
    Assignee: Midwest Research Institute
    Inventors: James F. Engel, Thomas J. Byerley, Howard W. Christie