公开(公告)号：US12134669B2

公开(公告)日：2024-11-05

申请号：US18568981

申请日：2022-06-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tatsuo Fukushi ,  Julie A. Baker ,  Yuta Suzuki ,  Steffen Vowinkel ,  Justin P. McBride ,  Michael H Mitchell

IPC: C08F214/26 ,  C08L27/18

Abstract: Fluoroelastomers containing at least 25 weight percent perfluorinated thermoplastic fillers are described. The perfluorinated thermoplastic fillers comprise a first perfluorinated thermoplastic filler having a first d50 particle size of 10 to 250 nanometers, and a second perfluorinated thermoplastic filler having a second d50 particle size of 5 to 500 micrometers. The first thermoplastic filler may be obtained from a latex while the second thermoplastic filler may be obtained as a dry powder. Methods of making such materials and cured articles prepared from them are also described.