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:
Feb. 02, 2010
Filed:
Jun. 29, 2007
Hans Joachim Metz, Frankfurt am Main, DE;
Gion Calzaferri, Bern, CH;
André Devaux, Liebefeld, CH;
Stephane Suarez, Bern, CH;
Andreas Kunzmann, Staufen, CH;
Hans Joachim Metz, Frankfurt am Main, DE;
Gion Calzaferri, Bern, CH;
André Devaux, Liebefeld, CH;
Stephane Suarez, Bern, CH;
Andreas Kunzmann, Staufen, CH;
Clariant International Ltd., Muttenz, CH;
Universitat Bern, Bern, CH;
Optical Additives GmbH, Staufen, CH;
Abstract
The invention is about the preparation of novel highly transparent zeolite-doped polymer and zeolites monolayers. External coating of the zeolite crystals by covalently linked functionalized alkoxysilane derivatives allows for an efficient dispersion of the nano zeolite particles into an organic liquid monomer; the following co-polymerisation process leads to a hard, insoluble and transparent material containing said zeolites. Optical properties such as colour, refractive index, Abbe number or photochromism can be fine tuned by simply changing zeolite loading, while transparency is maintained.