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:
Mar. 05, 2002
Filed:
Jul. 24, 1997
Applicant:
Inventors:
Jack I. Hanoka, Brookline, MA (US);
Peter P. Klemchuk, Watertown, CT (US);
Assignee:
Evergreen Solar, Inc., Marlborough, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 9/10 ; H01L 3/1048 ; B32B 2/732 ; C08K 5/3435 ;
U.S. Cl.
CPC ...
C09K 9/10 ; H01L 3/1048 ; B32B 2/732 ; C08K 5/3435 ;
Abstract
An ultraviolet light stabilization additive package is used in an encapsulant material that may be used in solar cell modules, laminated glass and a variety of other applications. The ultraviolet light stabilization additive package comprises a first hindered amine light stabilizer and a second hindered amine light stabilizer. The first hindered amine light stabilizer provides thermal oxidative stabilization, and the second hindered amine light stabilizer providing photo-oxidative stabilization.