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:
Jun. 02, 1992
Filed:
Jun. 03, 1991
Applicant:
Inventors:
Robert J DeVoe, St. Paul, MN (US);
Katherine A Brown-Wensley, Lake Elmo, MN (US);
George V Tiers, St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; D04H / ; D04H / ;
U.S. Cl.
CPC ...
428262 ; 428264 ; 428266 ; 428290 ; 428265 ; 428267 ; 428268 ; 428447 ; 428500 ; 428511 ; 428515 ; 428516 ;
Abstract
A curable composition, the cure of which can be monitored optically, comprises at least one of a hydride curable silicone, an ethylenically unsaturated compound, and a cationically polymerizable monomer, and as cure monitor dibenzofulvene or derivatives thereof. The cure monitor is a latent fluorophore which reacts under the cure conditions to form a UV-detectable fluorophore. The invention also provides a method for measuring degree of cure of a polymeric material which can be a coating or an article.