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:
May. 20, 1986
Filed:
Jul. 11, 1984
Robin Korinek, Kansas City, MO (US);
Transilwrap Company, Kansas City, MO (US);
Abstract
A method for laminating a composite assembly having outer films of plastic to provide such a composite assembly without appreciable transverse curl. The method includes the steps of preparing two oppositely facing outer films which may be of bi-axially oriented plastic. Each film may have an outer layer of a tough abrasion resistant material and an inner layer of thermoplastic bonding resin. In one embodiment, a portion of the inner layer of thermoplastic bonding resin may be coated with a strip of electrically conductive material. The inner layers of thermoplastic bonding resins are heated and the films are brought together in a common plane. In one embodiment, a central core is inserted between the converging films at spaced intervals. The outer films and the central core are laminated by passing them between first and second pairs of pressure rolls. The first and second pairs of pressure rolls are tilted at equal and opposite angles to the plane of the films.