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:
Apr. 21, 2025
Filed:
May. 18, 2020
Polyisobutylene adhesive comprising multifunctional component with (meth)acryl or vinyl ether groups
3m Innovative Properties Company, St. Paul, MN (US);
Vasav Sahni, St. Paul, MN (US);
Jason D. Clapper, Lino Lakes, MN (US);
John W. McAllister, St. Paul, MN (US);
Albert I. Everaerts, Tucson, AZ (US);
Jacob P. Johnson, St. Paul, MN (US);
Zhong Chen, Woodbury, MN (US);
Ying Zhang, Woodbury, MN (US);
Benjamin J. Bending, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An adhesive composition is described comprising a polyisobutylene polymer component; and up to 30 wt.-% of at least one aliphatic multifunctional component comprising at least two ethylenically unsaturated groups selected from (meth)acryl or vinyl ether. The monomer comprises a hydrocarbon moiety with greater than 12 contiguous carbon atoms. When the hydrocarbon moiety is branched, the hydrocarbon moiety comprises side chains with at least two carbon atoms. The aliphatic multifunctional component is sufficiently compatible such that crosslinked adhesive composition at a thickness of 20 microns has a haze of less than 3%. Also described are adhesive articles.