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:
Jan. 09, 2024
Filed:
Jan. 22, 2021
3m Innovative Properties Company, St. Paul, MN (US);
Derek J. Dehn, Maplewood, MN (US);
Bharat R. Acharya, Woodbury, MN (US);
Brandon A. Bartling, Woodbury, MN (US);
Paul T. Hines, Prior Lake, MN (US);
Clinton P. Waller, Jr., White Bear Lake, MN (US);
Satinder K. Nayar, Woodbury, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
Polymer matrix composite comprising a porous polymeric network; and a plurality of intumescent particles distributed within the polymeric network structure; wherein the intumescent particles are present in a range from 15 to 99 weight percent, based on the total weight of the intumescent particles and the polymer (excluding the solvent); and wherein the polymer matrix composite volumetrically expands at least 2 times its initial volume when exposed to at least one temperature greater than 135° C.; and methods for making the same. The polymer matrix composites are useful, for example, as fillers, thermally initiated fuses, and fire stop devices.