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. 02, 2002
Filed:
Nov. 20, 1998
Alexandra Atzesdorfer, Weil am Rhein, DE;
Klaus Heckmann, Pettendorf, DE;
Josef Thumbs, Regensburg, DE;
Infineon Technologies AG, Munich, DE;
Abstract
The adhesion of plastic to metal surfaces is improved by adding a specific filler in the sheathing material. The filler is formed of spherical SiO particles with a graduated diameter distribution defining individual diameter stages wherein the standard deviation in mean particle diameter of at least one diameter stage of said SiO particles is less than 10%. Spherical SiO particles with a graduated diameter distribution defining individual diameter stages are also mixed together in such ratio to obtain packing densities of 90% or more. Said spherical SiO particles with a graduated diameter distribution defining individual diameter stages may also be characterized as having an index of refraction which increases from the center of a particle to the surface.