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:
Apr. 28, 1992
Filed:
Dec. 01, 1989
Applicant:
Inventors:
Curt Niebling, Jr, Penzberg, DE;
Joachim Wank, Dormagen, DE;
Assignee:
Bayer Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156245 ; 156280 ; 264500 ; 264510 ; 264544 ;
Abstract
A method of manufacturing a deep-drawn formed plastic piece comprises providing a cold-stretchable sheet material with a coating selected from a group of an ink film, an ink imprint, a vacuum evaporated metallic thin film, and an electrically conductive varnish film. The coated sheet is heated with a fluid pressure medium which has a fluid medium pressure of more than 20 bars, and at an operating temperature lower than the softening temperature of the sheet material, in order to deform the sheet material isostatically to obtain the deep-drawn formed coated plastic piece.