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:
Nov. 30, 2021
Filed:
Dec. 14, 2018
3m Innovative Properties Company, St. Paul, MN (US);
Joshua M. Fishman, Minneapolis, MN (US);
Ying Lin, Woodbury, MN (US);
Hassan Sahouani, Hastings, MN (US);
Caitlin E. Meree, St. Paul, MN (US);
Jeffrey P. Kalish, St. Paul, MN (US);
Aaron T. Hedegaard, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Composite particles are provided including a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are compositions and foam compositions containing the composite particles. Further, articles are provided including the foam compositions, such as a sheet, tape, or hearing protection article. Methods of making and using the foam compositions are additionally described herein.