Patents by Inventor E. Steven McAlister

E. Steven McAlister 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).

  • Patent number: 7425279
    Abstract: The present invention relates to a fluorochemical composition for rendering fibrous substrates oil repellent, water repellent and/or stain or soil repellent. Additionally, the invention also relates to fluorochemical compositions for providing stain release or soil release properties to fibrous substrates. In particular, the present invention relates to fluorochemical compositions that contain a fluorinated polyether compound that can be obtained by reacting an isocyanate component with a particular isocyanate reactive fluorinated polyether compound and a stain release compound. The invention further relates to a method of treating the fibrous substrate with the fluorochemical composition.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: September 16, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Linda G. Coté, E. Steven McAlister
  • Patent number: 7300989
    Abstract: The present invention provides a method of preparing an aqueous dispersion of poly(perfluorovinyl ether) homopolymers. The present invention further relates to a method of making an aqueous fluoropolymer dispersion comprising bicomponent particles of poly(perfluorovinyl ether) homopolymers and a second fluoropolymer. The dispersions of the present invention may be used for rendering fibrous substrates oil repellent, water repellent and/or stain repellent without altering the looks and feel of the substrate.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: November 27, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Richard S. Buckanin, Lian S. Tan, E. Steven McAlister
  • Patent number: 7214736
    Abstract: Fluorochemical composition for rendering fibrous substrates oil repellent, water repellent, and/or stain or soil repellent. The composition comprises a dispersion or a solution of a fluorinated compound which comprises the reaction product of the following combination of reactants: (i) a fluorinated polyether according to the formula: Rf—Q—Tk ??(I) ?wherein Rf represents a monovalent perfluorinated polyether group having a molecular weight of at least 750 g/mol, Q represents a chemical bond or a divalent or trivalent organic linking group, T represents a functional group capable of reacting with an isocyanate and k is 1 or 2; (ii) an isocyanate component selected from a polyisocyanate compound that has at least 3 isocyanate groups or a mixture of polyisocyanate compounds wherein the average number of isocyanate groups per molecule is more than 2; and (iii) optionally one or more co-reactants capable of reacting with an isocyanate group.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: May 8, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Frans A. Audenaert, Rudolf J. Dams, Richard S. Buckanin, Cheryl L. S. Elsbernd, Chetan P. Jariwala, E. Steven McAlister, Pierre J. Vander Elst
  • Patent number: 7199196
    Abstract: The present invention provides a method of preparing an aqueous dispersion of poly(perfluorovinyl ether) homopolymers. The present invention further relates to a method of making an aqueous fluoropolymer dispersion comprising bicomponent particles of poly(perfluorovinyl ether) homopolymers and a second fluoropolymer. The dispersions of the present invention may be used for rendering fibrous substrates oil repellent, water repellent and/or stain repellent.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: April 3, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Lian S. Tan, Richard S. Buckanin, E. Steven McAlister
  • Patent number: 6833418
    Abstract: The present invention provides a method of preparing an aqueous dispersion of poly(perfluorovinyl ether)homopolymers. The present invention further relates to a method of making an aqueous fluoropolymer dispersion comprising bicomponent particles of poly(perfluorovinyl ether)homopolymers and a second fluoropolymer. The dispersions of the present invention may be used for rendering fibrous substrates oil repellent, water repellent and/or stain repellent.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: December 21, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Lian S. Tan, Richard S. Buckanin, E. Steven McAlister
  • Patent number: 6822059
    Abstract: The present invention provides a method of preparing an aqueous dispersion of poly(perfluorovinyl ether) homopolymers. The present invention further relates to a method of making an aqueous fluoropolymer dispersion comprising bicomponent particles of poly(perfluorovinyl ether) homopolymers and a second fluoropolymer. The dispersions of the present invention may be used for rendering fibrous substrates oil repellent, water repellent and/or stain repellent without altering the looks and feel of the substrate.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: November 23, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Richard S. Buckanin, Lian S. Tan, E. Steven McAlister
  • Patent number: 6737489
    Abstract: A fluorochemical composition for rendering a fibrous substrate oil and/or water repellent which comprises a solution or dispersion of a fluoropolymer having a partially or fully fluorinated backbone and comprising one or more repeating units corresponding to the general formula: wherein Rf represents a perfluorinated organic group having a chain length of at least 2 atoms and having at least one carbon atom and optional auxiliary components.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: May 18, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey G. Linert, E. Steven McAlister, Lian S. Tan, Richard S. Buckanin, Naiyong Jing, Frans A. Audenaert, Thomas J. Blong, John C. Clark, Linda G. Coté, Harald Kaspar, Franz März
  • Publication number: 20040077237
    Abstract: A fluorochemical composition for rendering a fibrous substrate oil and/or water repellent without substantially adversely affecting the look and/or feel of the fibrous substrate, comprising a fluorinated polyether compound and an extender. The fluorinated polyether compound comprises one or more perfluorinated polyether groups and the extender comprises a non-fluorinated organic compound comprising one or more blocked isocyanate groups and/or a carbodiimide compound.
    Type: Application
    Filed: May 23, 2003
    Publication date: April 22, 2004
    Inventors: Frans A. Audenaert, Rudolf J. Dams, Richard S. Buckanin, Chetan P. Jariwala, E. Steven McAlister, Pierre J. Vander Elst
  • Publication number: 20040077238
    Abstract: Fluorochemical composition for rendering fibrous substrates oil repellent, water repellent, and/or stain or soil repellent.
    Type: Application
    Filed: May 23, 2003
    Publication date: April 22, 2004
    Inventors: Frans A. Audenaert, Rudolf J. Dams, Richard S. Buckanin, Cheryl L.S. Elsbernd, Chetan P. Jariwala, E. Steven McAlister, Pierre J. Vander Elst
  • Publication number: 20030195314
    Abstract: The present invention provides a method of preparing an aqueous dispersion of poly(perfluorovinyl ether) homopolymers. The present invention further relates to a method of making an aqueous fluoropolymer dispersion comprising bicomponent particles of poly(perfluorovinyl ether) homopolymers and a second fluoropolymer. The dispersions of the present invention may be used for rendering fibrous substrates oil repellent, water repellent and/or stain repellent without altering the looks and feel of the substrate.
    Type: Application
    Filed: April 5, 2002
    Publication date: October 16, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Richard S. Buckanin, Lian S. Tan, E. Steven McAlister
  • Publication number: 20030191258
    Abstract: The present invention provides a method of preparing an aqueous dispersion of poly(perfluorovinyl ether)homopolymers. The present invention further relates to a method of making an aqueous fluoropolymer dispersion comprising bicomponent particles of poly(perfluorovinyl ether)homopolymers and a second fluoropolymer. The dispersions of the present invention may be used for rendering fibrous substrates oil repellent, water repellent and/or stain repellent.
    Type: Application
    Filed: April 5, 2002
    Publication date: October 9, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Lian S. Tan, Richard S. Buckanin, E. Steven McAlister
  • Publication number: 20030139521
    Abstract: A fluorochemical composition for rendering a fibrous substrate oil and/or water repellent which comprises a solution or dispersion of a fluoropolymer having a partially or fully fluorinated backbone and comprising one or more repeating units corresponding to the general formula: 1
    Type: Application
    Filed: May 21, 2001
    Publication date: July 24, 2003
    Inventors: Jeffrey G. Linert, E. Steven McAlister, Lian S. Tan, Richard S. Buckanin, Naiyong Jing, Frans A. Audenaert, Thomas J. Blong, John C. Clark, Linda G. Cote, Harald Kaspar, Franz Marz