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:
Dec. 16, 1997
Filed:
Jun. 16, 1995
Wendy R Carroll, Pittsburgh, PA (US);
Bruce A Bartrug, Lower Burrell, PA (US);
PPG Industries, Inc., Pittsburgh, PA (US);
Abstract
A plastic ply having at least one thermoplastic layer is positioned on a major surface of a glass ply to form a preliminary assembly, with the thermoplastic layer contacting selected portions of the major surface of the glass ply. A rigid press plate is placed on the plastic ply with the plate contacting a substantial portion of the plastic ply. Air is then removed from between the plastic and glass plies. After de-airing, the press plate is removed from the preliminary assembly and the preliminary assembly is subjected to elevated temperatures and pressures sufficient to intimately secure the plastic ply to the glass ply and form a laminate. If desired, the preliminary assembly and press plate may be heated to a temperature sufficient to soften the thermoplastic layer of the plastic ply while removing air from between the plastic and glass plies.