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:
May. 27, 2025
Filed:
Dec. 17, 2019
3m Innovative Properties Company, St. Paul, MN (US);
Tatsuo Fukushi, Woodbury, MN (US);
Tamon Aoki, Tokyo, JP;
Qilin Chan, Woodbury, MN (US);
Miguel A. Guerra, Woodbury, MN (US);
Klaus Hintzer, Kastl, DE;
Florian D. Jochum, Ingelheim, DE;
Michael H. Mitchell, Woodbury, MN (US);
Allen M. Sohlo, Lindstrom, MN (US);
Yuta Suzuki, Kanagawa, JP;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
The composition includes a curable fluoropolymer having nitrogen-containing cure sites and a curative including an organo onium cation and an anion represented by Formula (I) or Formula (II). The composition is free of metal cations or has not more than 20 parts per million metal cations and free of silicon dioxide or has less than 0.5 percent by weight silicon dioxide, based on the total weight of the composition. In some cases, the composition consists of the curable fluoropolymer and the curative. Shaped articles including the composition, a fluoroelastomer prepared by curing the composition, a method of making a fluoroelastomer article, and a process for making the composition are also described.