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：US20240117086A1

公开(公告)日：2024-04-11

申请号：US17766372

申请日：2020-10-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Naiyong Jing ,  Cheng Gu ,  Klaus Hintzer ,  Tho Q. Nguyen ,  Peter J. Scott

IPC: C08F214/22 ,  C08J7/04 ,  C08J7/18 ,  C09D127/16

CPC classification number: C08F214/225 ,  C08J7/04 ,  C08J7/18 ,  C09D127/16

Abstract: A method of making a crosslinked fluoropolymer is described. The method comprises applying a composition to a substrate, wherein the composition comprises fluoropolymer and a fluorinated solvent, one or more curing agents comprising an ethylenically unsaturated group and an electron donor group or precursor thereof. The method further comprises removing the solvent and curing the fluoropolymer with actinic (e.g. ultraviolet “UV”) radiation. Also described is a composition comprising a fluoropolymer dissolved in a fluorinated solvent, and one or more curing agents comprising an ethylenically unsaturated group and an electron donor group or precursor thereof; and article comprising the crosslinked fluoropolymer.

公开(公告)号：US11267922B2

公开(公告)日：2022-03-08

申请号：US16477006

申请日：2018-01-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael H. Mitchell ,  Denis Duchesne ,  Tatsuo Fukushi ,  Larry A. Last ,  Peter J. Scott ,  Karl D. Weilandt

IPC: C08F293/00 ,  C08F214/22 ,  C08F214/26 ,  C08F214/28 ,  C08F216/14

Abstract: There is provided a curable composition comprising a fluorinated block copolymer having (a) at least one A block, wherein the A block is a semi-crystalline segment comprising repeating divalent monomeric units derived from at least a fluorinated monomer; and (b) at least one B block, wherein the B block is a segment comprising repeating divalent monomeric units that comprises at least a fluorinated monomer and a nitrile-containing cure-site monomer.

公开(公告)号：US11261280B2

公开(公告)日：2022-03-01

申请号：US16477019

申请日：2018-01-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael H. Mitchell ,  Denis Duchesne ,  Tatsuo Fukushi ,  Larry A. Last ,  Peter J. Scott ,  Karl D. Weilandt

IPC: C08F293/00 ,  C08F2/22 ,  C08F214/16 ,  C08F214/22 ,  C08F214/26 ,  C08F214/28 ,  C08K5/14

Abstract: Described herein is a millable fluorinated block copolymer having (a) at least one A block, wherein the A block is a semi-crystalline segment comprising repeating divalent monomeric units derived from at least TFE, HFP and VDF; (b) at least one B block, wherein the B block is a segment comprising repeating divalent monomeric units derived from at least HFP and VDF; and (c) a bisolefin monomer, wherein at least (i) the semi-crystalline segment of the A block comprises repeating divalent monomeric units derived from TFE, HFP, VDF, and the bisolefin monomer, (ii) the segment of the B block comprises repeating divalent monomeric units derived from HFP, VDF, and the bisolefin monomer, or (iii) a combination thereof; and wherein the millable fluorinated block copolymer has a modulus of 0.1 to 2.5 MPa at 100° C.

公开(公告)号：US20190248057A1

公开(公告)日：2019-08-15

申请号：US16260172

申请日：2019-01-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael H. Mitchell ,  Tatsuo Fukushi ,  Karen L. Hopperstad ,  Jarod R. Lowry ,  Peter J. Scott ,  Nena M. Serios

IPC: B29C48/154 ,  B29C48/00 ,  B29C48/03 ,  B29C48/91 ,  C08F14/22 ,  C08F14/26 ,  C08F14/28 ,  C08K5/14 ,  F04C2/107 ,  F04C15/00

CPC classification number: B29C48/154 ,  B29C48/0021 ,  B29C48/022 ,  B29C48/03 ,  B29C48/91 ,  B29K2027/16 ,  B29K2027/18 ,  C08F14/22 ,  C08F14/26 ,  C08F14/28 ,  C08K5/14 ,  F04C2/1075 ,  F04C15/003

Abstract: Described herein is method of making elongated fluoroelastomeric articles using a millable composition comprising (a) a random fluorinated polymer, the random fluorinated polymer comprising repeating divalent monomeric units derived from TFE, HFP and VDF and further comprising 0.1 to 1% by weight iodine, wherein the random fluorinated polymer has an MFI greater than 5 g/10 min at 265° C. and 5 kg; (b) a filler, and (c) a peroxide, wherein the millable composition has a melting point less than 125° C. Such compositions can be used to make elongated articles such as stators.