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. 03, 2019
Filed:
Apr. 24, 2017
3m Innovative Properties Company, St. Paul, MN (US);
Ying Lin, Woodbury, MN (US);
Hassan Sahouani, Hastings, MN (US);
Mary M. Caruso Dailey, Maplewood, MN (US);
Luke E. Heinzen, Shoreview, MN (US);
Michael A. Kropp, Cottage Grove, MN (US);
Patricia M. Savu, Maplewood, MN (US);
Jonathan W. Kemling, Woodbury, MN (US);
Wayne S. Mahoney, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Composite particles are provided that can be used to cure epoxy resins. More particularly, the composite particles have a porous polymeric core particle, a curing agent and/or a curing catalyst for an epoxy resin positioned within the porous polymeric core particle, and a fluoropolymer-containing coating layer around the porous polymeric core particle. Additionally, curable compositions are provided that are mixtures containing an epoxy resin and the composite particles. The epoxy resin typically does not react until the curable composition is heated causing the release of the curing agent and/or curing catalyst from the composite particle. Further, cured compositions formed from the curable composition are provided.