Patents by Inventor Roger E. Mulder

Roger E. Mulder 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).

  • Glass fiber mats, laminates reinforced with the same and methods for making the same
    Patent number: 6680115
    Abstract: The present invention provides a mat having at least one primary area and at least one secondary area and adapted to reinforce a polymeric matrix material, the mat comprising (a) a first layer comprising a plurality of generally parallel, essentially continuous glass fiber strands oriented generally parallel to a longitudinal axis of the mat, at least a portion of outer surfaces of the first layer glass fiber strands having applied thereon at least a partial layer comprising at least a partially dried residue of first coating composition which is compatible with a polymeric matrix material, wherein at least a first portion of the first layer glass fiber strands are positioned within the at least one primary area at a primary strand density and at least a second portion of the first layer glass fiber strands are positioned within the at least one secondary area at a secondary strand density which is different from the primary strand density; and (b) a second layer comprising a plurality of randomly oriented gl
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: January 20, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Roger E. Mulder, Charles W. Peterson, Harri Dittmar
  • Glass fiber mats, laminates reinforced with the same and methods for making the same
    Publication number: 20010033923
    Abstract: The present invention provides a mat having at least one primary area and at least one secondary area and adapted to reinforce a polymeric matrix material, the mat comprising (a) a first layer comprising a plurality of generally parallel, essentially continuous glass fiber strands oriented generally parallel to a longitudinal axis of the mat, at least a portion of outer surfaces of the first layer glass fiber strands having applied thereon at least a partial layer comprising at least a partially dried residue of first coating composition which is compatible with a polymeric matrix material, wherein at least a first portion of the first layer glass fiber strands are positioned within the at least one primary area at a primary strand density and at least a second portion of the first layer glass fiber strands are positioned within the at least one secondary area at a secondary strand density which is different from the primary strand density; and (b) a second layer comprising a plurality of randomly oriented gl
    Type: Application
    Filed: May 31, 2001
    Publication date: October 25, 2001
    Inventors: Roger E. Mulder, Charles W. Peterson, Harri Dittmar
  • Glass fiber mats, laminates reinforced with the same and methods for making the same
    Patent number: 6268047
    Abstract: A method for making a mat adapted to reinforce a polymeric matrix material, the method including the steps of (a) positioning a plurality of generally parallel, essentially continuous glass fiber strands oriented generally parallel to a longitudinal axis of the mat to form a first layer, at least a portion of outer surfaces of the first layer glass fiber strands having applied thereon at least a partial layer having at least a partially dried residue of a first coating composition which is compatible with a polymeric matrix material, wherein at least a first portion of the first layer glass fiber strands are positioned within an at least one primary area at a primary strand density and at least a second portion of the first layer glass fiber strands are positioned within an at least one secondary area at a secondary strand density which is different from the primary strand density; (b) dispersing a plurality of randomly oriented glass fiber strands within the at least one primary area and the at least one sec
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: July 31, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Roger E. Mulder, Charles W. Peterson, Harri Dittmar