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：US20200332107A1

公开(公告)日：2020-10-22

申请号：US16957981

申请日：2018-12-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael H. Mitchell ,  Miguel A. Guerra

IPC: C08L27/18 ,  C08L27/16 ,  C08L33/16 ,  C08L23/12 ,  C08L53/00 ,  C08K5/54 ,  C08K5/5475 ,  C08K5/3492 ,  C08K5/14

Abstract: Curable compositions that include at least one fluorinated elastomeric gum; and at least one compound according to formula I: X—(CF2)n—(O)p—(CH2)m—Si—Y3 (I) wherein X is Br, I, CF2═CF—O—, CH2═CHCH2—O—, CH2═CH—, or CH2═CHCH2—, n is an integer from 2 to 8, m is an integer from 2 to 5, p is 0 or 1, and Y is Cl— or —OR, where R is a linear or branched alkyl having 1 to 4 carbon atoms. In some embodiments, Y is —O(CH2)xCH3, where x is an integer from 0 to 3.

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.