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. 27, 2019
Filed:
Sep. 20, 2016
Illinois Tool Works, Inc., Glenview, IL (US);
Daniel K. Doe, Andover, MA (US);
Camus Weng, Wujiang, CN;
Welkin Li, Wujiang, CN;
Peter A. Carbutt, Groton, MA (US);
Frank Zhao, Wujiang, CN;
Illinois Tool Works, Inc., Glenview, IL (US);
Abstract
An adhesive composition is provided that includes a block copolymer present at greater than or equal to 30 total weight percent of the adhesive system comprising a high glass transition temperature in subunits Y and Y', each of the subunits Y and Y′ having a high glass transition temperature of from 70° C. to 130° C. with a low glass transition temperature subunit Z having a low glass transition temperature of from −100° C. to 10° C. intermediate between said high glass transition temperature acrylate subunits to define a structure Y-Z-Y′. The triblock copolymer is dissolved in a monomer curable under free radical. A free radical initiator of a peroxide or a hydroperoxide are present in combination with a sulfonyl chloride, dihydropyridine and copper or vanadium salt. By heating the cured adhesive at or above 70° C., the adhesive is amenable to being removed, repaired, or reworked.