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. 24, 1982
Filed:
Sep. 25, 1981
Applicant:
Inventors:
Thomas B Garrett, Warwick Township, Lancaster County, PA (US);
John E Herweh, East Hempfield Township, Lancaster County, PA (US);
Alan B Magnusson, East Hempfield Township, Lancaster County, PA (US);
Normal L Miller, Manheim Township, Lancaster County, PA (US);
Assignee:
Armstrong World Industries, Inc., Lancaster, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524 82 ; 524 84 ; 524 88 ; 524104 ; 524110 ; 524111 ;
Abstract
The present invention relates to processes for fixing photo-induced colored derivatives of spiropryans in solvent and solid solutions, and to compositions in which said photo-induced colored derivatives may be fixed, said processes comprising irradiating solvent or solid solutions comprising a spiropryan and an iodonium salt.