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:
Sep. 11, 1990
Filed:
Jul. 14, 1989
Wolfgang Wagner, Neuberg, DE;
Klemens Ruebsam, Jossgrund, DE;
Helmut Kubik, Hesselroth, DE;
Stefan Heimrich, Bad Orb, DE;
Klaus Eckert, Hanau, DE;
Werner Pflueger, Hammersbach, DE;
Leybold Aktiengesellschaft, Hanau, DE;
Abstract
In a method and in an apparatus for the production of a corrosion-resistant coating of high reflectivity on the surface of workpieces, especially reflector inserts formed from plastic, in a vacuum chamber with a glow-discharge cathode and an evaporator, there is deposited on a coating consisting of a protective lacquer a second coating of a polymer, preferably of hexadimethylsilane, then a third coating of a metal, preferably aluminum, and lastly a fourth coating of a polymer, preferably of hexadimethylsilane. Both the metal evaporation and the polymerization of the protective coatings on the reflective coating and on the lacquer coating are performed in the same vacuum chamber.