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.

公开(公告)号：US12116476B2

公开(公告)日：2024-10-15

申请号：US17413053

申请日：2019-12-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Klaus Hintzer ,  Tamon Aoki ,  Tatsuo Fukushi ,  Florian D. Jochum ,  Peter J. Scott ,  Yuta Suzuki ,  Karl D. Weilandt ,  Steffen Vowinkel

IPC: C08L27/18 ,  B29B9/08 ,  C08F214/26 ,  C08F214/28 ,  C08L19/02 ,  C08L27/20 ,  B29K19/00

CPC classification number: C08L27/18 ,  B29B9/08 ,  C08F214/262 ,  C08F214/282 ,  C08L19/02 ,  C08L27/20 ,  B29K2019/00

Abstract: Described herein is a latex blend comprising (i) an amorphous perfluoropolymer and (ii) an aqueous dispersion of semi crystalline fluoropolymer particles, wherein the particles comprise a TFE homopolymer or a TFE copolymer comprising no more than 1 wt % of a second fluorinated monomer, wherein the semi crystalline fluoropolymer particles (a) have an MFI (372° C. with 2.16 kg) of less than 50 g/10 min or (b) are not melt processible and have an SSG of less than 2.190, wherein the semi crystalline fluoropolymer particles have an average diameter greater than 100 nm.

公开(公告)号：US20220073664A1

公开(公告)日：2022-03-10

申请号：US17414280

申请日：2019-12-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tatsuo Fukushi ,  Tamon Aoki ,  Qilin Chan ,  Miguel A. Guerra ,  Klaus Hintzer ,  Florian D. Jochum ,  Michael H. Mitchell ,  Allen M. Sohlo ,  Yuta Suzuki

IPC: C08F214/26

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.

公开(公告)号：US10323142B2

公开(公告)日：2019-06-18

申请号：US15573848

申请日：2016-05-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tamon Aoki ,  Tatsuo Fukushi ,  Yuta Suzuki ,  Noriyuki Usami

IPC: C08K3/04 ,  C08K3/22 ,  C08K3/26 ,  C08K3/34 ,  C08K3/36 ,  C08K5/14 ,  C08K5/353 ,  C08L27/12 ,  C08L27/14 ,  C08L27/18 ,  C08L27/20 ,  C08K5/3492

Abstract: Described herein is a curable composition comprising: (a) a perfluoroelastomer gum having a carboxylic acid integrated absorbance ratio of at least 0.015; and (b) a compound comprising at least one oxazole moiety, and cured articles thereof.