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. 25, 2019
Filed:
Sep. 06, 2017
3m Innovative Properties Company, St. Paul, MN (US);
Wendy L. Thompson, Roseville, MN (US);
Wayne S. Mahoney, St. Paul, MN (US);
Donald K. Larson, Cedar Park, TX (US);
Daniel J. Treadwell, Austin, TX (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An adhesive composition for joining optical components is described. The adhesive composition comprises at least one epoxy resin, a visible light photoinitiating system comprising at least one of a cationic photoinitiator and a sensitizer, a polyol and at least 50 wt. % of a nanoparticle filler. The visible light photoinitiating system includes at least one of a cationic photoinitiator and a sensitizer and the nanoparticle filler comprises a first nanoparticle having a first nominal size and a second nanoparticle having a second size. The adhesive composition has a refractive index between 1.44 and 1.47 and a dn/dT of less than −2E−4 when cured.