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:
Sep. 30, 2014
Filed:
Jun. 24, 2011
Susan A. Odom, Champaign, IL (US);
Mary M. Caruso, Urbana, IL (US);
Aaron D. Finke, Urbana, IL (US);
Aaron C. Jackson, Urbana, IL (US);
Jeffrey S. Moore, Savoy, IL (US);
Nancy R. Sottos, Champaign, IL (US);
Scott R. White, Champaign, IL (US);
Susan A. Odom, Champaign, IL (US);
Mary M. Caruso, Urbana, IL (US);
Aaron D. Finke, Urbana, IL (US);
Aaron C. Jackson, Urbana, IL (US);
Jeffrey S. Moore, Savoy, IL (US);
Nancy R. Sottos, Champaign, IL (US);
Scott R. White, Champaign, IL (US);
Board of Trustees of the University of Illinois, Urbana, IL (US);
Abstract
A self-indicating material system may include a solid polymer matrix having a first color, a first plurality of capsules in the matrix, and a plurality of particles in the matrix. The first plurality of capsules includes a first reactant, and the plurality of particles includes a second reactant, which forms a product when in contact with the first reactant. When a crack forms in the polymer matrix, at least a portion of the first plurality of capsules is ruptured, the first and second reactants form the product in the matrix, and the portion of the polymer matrix containing the product has a second color different from the first color. A self-indicating material system may include a solid polymer matrix, a plurality of capsules in the matrix, and an activator in the matrix, where the polymer matrix includes a first polymer and has a first color, the plurality of capsules includes a polymerizer, and the activator is an activator for the polymerizer. When a crack forms in the polymer matrix, at least a portion of the plurality of capsules is ruptured, the polymerizer and the activator form a second polymer in the crack, and the second polymer has a second color different from the first color.