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:
Oct. 21, 2025
Filed:
Oct. 15, 2020
3m Innovative Properties Company, St. Paul, MN (US);
Lianzhou Chen, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Provided is an aqueous primer composition including a first thermosetting resin that is a particulate solid at ambient conditions and a second thermosetting resin that is liquid at ambient conditions and acting as a reactive coalescent agent in which the first thermosetting resin is at least partially soluble. The second thermosetting resin acts as a coalescent agent to enable a continuous primer film to be formed as the primer is being dried before it is cured. The composition further includes a curative that is substantially water-insoluble and reactive with the first and second thermosetting resins. The overall composition can contain up to 4 percent by weight of volatile solvents, other than water and provides a shelf-stable primer that can form a continuous film without the need for added organic solvents.