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. 17, 2016
Filed:
Oct. 01, 2015
Applicant:
Rohm and Haas Company, Philadelphia, PA (US);
Inventors:
Jitendra Goela, Marlborough, MA (US);
Nathaniel Brese, Marlborough, MA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 16/30 (2006.01); G02B 1/10 (2015.01);
U.S. Cl.
CPC ...
C23C 16/306 (2013.01); G02B 1/10 (2013.01);
Abstract
Low scatter water clear zinc sulfide with reduced metal contamination is prepared by coating a chuck which holds zinc sulfide and machining the zinc sulfide with uncoated particles. An inert foil is cleaned with an acid cleaning method and also cleaning the zinc sulfide. The zinc sulfide is wrapped in the inert foil and then treated by a HIP process to provide a low scatter water-clear zinc sulfide. The low scatter water-clear zinc sulfide may be used in articles such as windows and domes.