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. 27, 1997
Filed:
Apr. 24, 1995
Applicant:
Inventors:
Gary J Blanchard, Okemos, MI (US);
Julie L Jessop, Lansing, MI (US);
Alec B Scranton, East Lansing, MI (US);
Assignee:
Board of Trustees operating Michigan State University, East Lansing, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; C08J / ; C08K / ; B29C / ;
U.S. Cl.
CPC ...
524719 ; 356303 ; 356306 ; 356311 ; 436172 ; 524718 ; 524722 ;
Abstract
A method and apparatus (10) for detection of the degree of cure of a polymer in situ and non-invasively. The method and apparatus uses a solvatochromic probe molecule which upon curing produces a shift in the fluorescence emission spectrum as compared to a liquid polymerizable composition. The method and apparatus is particularly adapted for poly(vinyl) polymers. Preferred solvatochromic probe molecules are oxazones and pyrene.