The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2018
Filed:
Aug. 19, 2013
Applicant:
Hexcel Holding Gmbh, Pasching, AT;
Inventor:
Johannes Moser, Linz, AT;
Assignee:
Hexcel Holding GMBH, Pasching, AT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/28 (2006.01); B32B 37/14 (2006.01); B32B 27/12 (2006.01); B32B 7/06 (2006.01); B32B 27/32 (2006.01); B29C 70/30 (2006.01);
U.S. Cl.
CPC ...
B32B 5/28 (2013.01); B29C 70/30 (2013.01); B32B 7/06 (2013.01); B32B 27/12 (2013.01); B32B 27/32 (2013.01); B32B 37/14 (2013.01); B32B 2260/021 (2013.01); B32B 2307/748 (2013.01); Y10T 156/10 (2015.01); Y10T 428/249934 (2015.04);
Abstract
Prepregs comprising fibrous reinforcing material and a heat curable resin are provided with a backing sheet whose surface has been treated to increase the surface tension which enhances the bonding between the prepreg and the backing sheet, and reduces resin removal when the backing sheet is removed. The use of the treated backing sheet also provides improved tack between prepregs when assembled in a stack for molding after removal of the backing sheet.