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. 11, 1982
Filed:
Dec. 19, 1980
Bruce A Banks, Olmsted Township, Cleveland County, OH (US);
Albert J Weigand, Lakewood, OH (US);
James S Sovey, Strongsville, OH (US);
Abstract
This invention is concerned with fabricating textured surfaces on polymers without altering their surface chemistries. A surface of a fluorocarbon polymer 10 is exposed to a beam 12 of ions from a source 14 to texture it. The polymer 18 which is to be surface-roughened is then cast over the textured surface 20 of the fluorocarbon polymer. After curing, the cast polymer is peeled off the textured fluorocarbon polymer, and the peeled off surface 22 has a negative replica of the textured surface 20. The microscopic surface texture provides large surface areas for adhesive bonding. In cardiovascular prosthesis applications the surfaces are relied on for the development of a thin adherent well nourished thrombus.