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:
Jan. 09, 2018
Filed:
Nov. 13, 2015
Applicant:
Raytheon Company, Waltham, MA (US);
Inventors:
Thomas M. Deppert, Gilbert, AZ (US);
David R. Smith, Tucson, AZ (US);
Amanda Gravanda, Tucson, AZ (US);
Assignee:
RAYTHEON COMPANY, Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 123/20 (2006.01); C09D 145/00 (2006.01); C09D 123/06 (2006.01); C09D 123/12 (2006.01); C09D 147/00 (2006.01);
U.S. Cl.
CPC ...
C09D 123/20 (2013.01); C09D 123/06 (2013.01); C09D 123/12 (2013.01); C09D 145/00 (2013.01); C09D 147/00 (2013.01);
Abstract
A optical element includes a surface including a zinc sulfide layer; a coupling agent adhered to the zinc sulfide layer by a disulfide bond and including a hydrocarbon tail extending from the disulfide bond; and a polymer bonded to the hydrocarbon tail of the coupling agent by a covalent bond; wherein the polymer and the coupling agent are optically transparent in the long wavelength infrared (LWIR) region.