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. 27, 1998
Filed:
Jun. 07, 1995
Applicant:
Inventors:
Joseph M Makhlouf, Mars, PA (US);
John R Schneider, Glenshaw, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ;
U.S. Cl.
CPC ...
521 76 ; 521 54 ; 521 59 ; 521135 ;
Abstract
The present invention provides a method of reinforcing thin rigid plates. The method comprises applying, preferably by spray application, a curable composition onto one side of the rigid plate followed by curing the composition while only in contact with the rigid plate. The curable composition comprises: (i) a thermosetting resinous composition and (ii) expandable microspheres. The composition may optionally contain a particulate reinforcing material selected from the group consisting of milled glass fibers, milled carbon fibers, and mixtures thereof.