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:
Aug. 07, 2012
Filed:
Mar. 13, 2007
Applicants:
Rolf Van Bonn, Duisburg, DE;
Joachim Barbe, Tönisvorst, DE;
Inventors:
Rolf Van Bonn, Duisburg, DE;
Joachim Barbe, Tönisvorst, DE;
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B32B 9/04 (2006.01); B05D 1/40 (2006.01); B05D 3/02 (2006.01); B05D 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for the modification of the surface of shaped parts made of plastic by treatment with a gas mixture which comprises fluorine and oxygen. The surface tension of the modified surface of the shaped part is more than 25 mN/m greater than that of a surface comprising non-modified plastic material. The ratio of the partial pressure of fluorine to the partial pressure of oxygen is 1:10 or lower and the shaped part has a fluorine occupancy of less than 0.5 μg/cmas a result of the treatment.