公开(公告)号：CA2278590C

公开(公告)日：2003-07-08

申请号：CA2278590

申请日：1998-01-21

Applicant: PPG IND OHIO INC

Inventor： UNITES THOMAS P ,  MARTINE EDWARD A ,  MORRIS STEVEN J ,  DANA DAVID E

IPC: B32B5/28 ,  D04H13/00

Abstract: The present invention provides a mat adapted to reinforce a thermosetting matrix material to form a composite, composites formed therefrom, and methods related thereto. The mat includes a primary, supporting layer having a plurality of randomly oriented essentially continuous glass fiber strands. The primary layer has about 1 to about 10 weight percent of the mat on a total solids basis. The mat also includes a secondary layer positioned upon and supported by a surface of the primary layer, the secondary layer including a plurality of glass fiber strands. The mean average length of the glass fiber strands of the secondary layer ranges from about 20 to about 125 millimeters. The strands of the primary layer are entangled with the strands of the secondary layer by needling the primary layer and the secondary layer together.

公开(公告)号：CA2278590A1

公开(公告)日：1998-07-30

申请号：CA2278590

申请日：1998-01-21

Applicant: PPG IND OHIO INC

Inventor： DANA DAVID E ,  MORRIS STEVEN J ,  UNITES THOMAS P ,  MARTINE EDWARD A

IPC: B32B5/28 ,  D04H13/00

Abstract: The present invention provides a mat adapted to reinforce a thermosetting matrix material to form a composite, composites formed therefrom, and methods related thereto. The mat includes a primary, supporting layer having a plurality of randomly oriented essentially continuous glass fiber strands. The primary layer has about 1 to about 10 weight percent of the mat on a total solids basis. The mat also includes a secondary layer positioned upon and supported by a surface of the primary layer, the secondary layer including a plurality of glass fiber strands. The mean average length of the glass fiber strands of the secondary layer ranges from about 20 to about 125 millimeters. The strands of the primary layer are entangled with the strands of the secondary layer by needling the primary layer and the secondary layer together.