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. 09, 2011
Filed:
Jul. 16, 2008
Applicants:
Ralf Hala, Lindenberg, DE;
Botho Hoffmann, Domat/Ems, DE;
Nikolai Lamberts, Bonaduz, CH;
Inventors:
Assignee:
EMS-Patent AG, Domat/Ems, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 69/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A polyamide molding composition is described, comprising at least one transparent polyesteramide in a proportion by weight of from 70 to 99.99% by weight; at least one further polymer in a proportion by weight of from 0 to 30% by weight; at least one photochromic dye in a proportion by weight of from 0.01 to 2% by weight; and also optionally further dyes and/or additives. The invention further encompasses articles manufactured therefrom, e.g. foils, for the coating of photochromic ophthalmic lenses, or the like.