公开(公告)号：US20230416430A1

公开(公告)日：2023-12-28

申请号：US18254020

申请日：2021-11-19

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A

Inventor： Fiorenza D'aprile ,  Alessio Marrani ,  Eliana leva

IPC: C08F214/26

CPC classification number: C08F214/262

Abstract: The present invention pertains to a surfactant free method for manufacturing a fluoropolymer F comprising, preferably consisting of:



from 45 to 95% by moles of recurring units derived from tetrafluoroethylene (TFE)
from 5 to 35% by moles of recurring units derived from vinylidene fluoride (VDF)
from 0.5 to 20% by moles of one or more perfluoroalkylvinylether (PAVE) of formula (I)






CF2═CF—O—Rf  (I)

wherein Rf is a C1-C6 perfluoroalkyl group and

wherein the molar amounts of said recurring units are relative to the total moles of recurring units in said polymer F.

公开(公告)号：US11629249B2

公开(公告)日：2023-04-18

申请号：US16340050

申请日：2017-09-29

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Alessio Marrani ,  Ivan Falco ,  Valeriy Kapelyushko

IPC: C08L27/16 ,  C08F214/22 ,  H01B3/44 ,  H01G7/06 ,  H01L49/02 ,  H01L37/02 ,  H01L41/193

Abstract: The invention provides novel latexes of particles of vinylidene fluoride/trifluoroethylene copolymers possessing a more ordered ferroelectric crystalline phase, and hence improved ferro-, pyro-, and piezo-electric properties, and a method for manufacturing the same by emulsion polymerization in the presence of certain cyclic fluorosurfactants.

公开(公告)号：US20230002518A1

公开(公告)日：2023-01-05

申请号：US17784965

申请日：2020-12-09

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Stefana Musio ,  Fiorenza D'aprile ,  Serena Carella ,  Valeriy Kapelyushko ,  Bradley Lane Kent ,  Alessio Marrani

IPC: C08F14/24

Abstract: The present invention relates to a process for preparing a fluoropolymer in a liquid reaction medium, comprising the following steps: provide a reactor containing a liquid reaction medium comprising water introduce in said reactor ethylene monomers and fluorinated monomers, said fluorinated monomers being selected from tetrafluoroethylene (TFE), chlorotrifluoroethylene (CTFE) or mixtures thereof, pressurize the reactor, initiate polymerization feeding into said reactor a redox initiator comprising an oxidising agent and a reducing agent, wherein said reducing agent in said redox couple initiator is free from sulphur atoms having an oxidation number of 4 or below, wherein the reaction medium is free of fluorinated surfactants.

公开(公告)号：US11084923B2

公开(公告)日：2021-08-10

申请号：US15780160

申请日：2016-11-25

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Alessio Marrani ,  Francesco Pedroli

IPC: C08L27/16 ,  H01L41/45 ,  H01L41/193 ,  C09D127/16 ,  C08J5/18 ,  C08L33/14

Abstract: The present invention pertains to a fluoropolymer composition comprising a copolymer of vinylidene fluoride (VDF) and trifluoroethylene (TrFE), to a process for the manufacture of said fluoropolymer composition and to uses of said fluoropolymer composition in various applications, in particular to uses of fluoropolymer films obtainable therefrom in electrical or electronic devices.

公开(公告)号：US10414844B2

公开(公告)日：2019-09-17

申请号：US14365451

申请日：2012-12-06

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Alessio Marrani ,  Ivan Wlassics ,  Vito Tortelli ,  Ivan Falco

IPC: C08F214/22 ,  C08F214/18 ,  C08K5/28 ,  B05D1/00 ,  C08J3/24

Abstract: The present invention pertains to semi-crystalline fluoropolymer [polymer (F)] comprising: —recurring units derived from vinylidene fluoride (VDF); —from 10% to 50% by moles [with respect to the total moles of recurring units of polymer (F)] of recurring units derived from trifluoroethylene (TrFE); and —from 0.01% to 10% by moles [with respect to the total moles of recurring units of polymer (F)] of recurring units derived from at least one monomer comprising an azide group [monomer (Az)], to a process for its manufacture, to a crosslinkable composition comprising the same, to a process for crosslinking the same and to a method for manufacturing one of electrical and electronic devices using the same.

公开(公告)号：US10208147B2

公开(公告)日：2019-02-19

申请号：US14365423

申请日：2012-12-06

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Ivan Wlassics ,  Vito Tortelli ,  Alessio Marrani

IPC: C07C311/49 ,  C08F214/22 ,  C08F14/18 ,  C08K5/00 ,  C08K5/43

Abstract: This invention pertains to fluoroallylsulfonyl azide compounds of formula: CF2═CF—CF2—Rf—SO2N3 formula (I) wherein Rf is a divalent (per)fluorinated group, optionally comprising one or more than one ethereal oxygen atom [monomer (Az)], which are useful as functional monomers in fluoropolymers, to the fluoropolymers which comprise recurring units derived from such fluoroallylsulfonyl azide compounds, to a process for their manufacture, to a curable compound comprising the same and to a method for crosslinking the same.

公开(公告)号：US20240141214A1

公开(公告)日：2024-05-02

申请号：US18262159

申请日：2022-01-17

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Alessio Marrani ,  Liubov Chernysheva ,  Mattia Bassi

IPC: C09J127/18 ,  B32B7/12 ,  B32B15/08 ,  B32B15/20 ,  B32B27/28 ,  C09J5/06 ,  C09J11/06

CPC classification number: C09J127/18 ,  B32B7/12 ,  B32B15/08 ,  B32B15/20 ,  B32B27/281 ,  C09J5/06 ,  C09J11/06 ,  B32B2250/02 ,  B32B2307/748 ,  C09J2400/166 ,  C09J2427/00 ,  C09J2479/028

Abstract: The present invention relates to a polymeric composition comprising a first polymer component C being selected from TFE/PAVE polymers comprising a small amount of chlorinated monomers selected from chlorotrifluoroethylene and dichlorodifluoroethylene and a second optional polymer component D being selected from TFE/PAVE polymers and being free from chlorine. The polymeric composition of the invention is characterized in that it has a total Cl content of from 0.01 to 0.25% by weight. The composition of the invention has very good adhesion on metals and plastics despite a very low total level of chlorine.

公开(公告)号：US11859033B2

公开(公告)日：2024-01-02

申请号：US16604869

申请日：2018-04-09

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Mattia Bassi ,  Alessio Marrani ,  Valeriy Kapelyushko

IPC: C08F214/26 ,  C09D127/18 ,  C08L27/18 ,  F16L11/04 ,  C08F214/22 ,  C08F2/30 ,  C08F114/26 ,  C08J3/05 ,  C08J5/18

CPC classification number: C08F214/262 ,  C08F2/30 ,  C08F114/26 ,  C08F214/22 ,  C08J3/05 ,  C08L27/18 ,  C09D127/18 ,  F16L11/04 ,  C08F214/222 ,  C08F214/26 ,  C08F2800/10 ,  C08J5/18 ,  C08L2201/52 ,  C08L2203/18 ,  C08F214/262 ,  C08F214/22 ,  C08F216/1408

Abstract: The present invention pertains to a melt-processible fluoropolymer, to a composition comprising the melt-processible fluoropolymer, to a process for manufacturing the melt-processible fluoropolymer and to uses of the melt-processible fluoropolymer in various applications.

公开(公告)号：US20230167291A1

公开(公告)日：2023-06-01

申请号：US17996820

申请日：2021-04-14

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Alessio Marrani ,  Ivan Falco ,  Stefano Millefanti

IPC: C08L27/16 ,  C08J5/18 ,  C08F214/22 ,  H10N30/098

CPC classification number: C08L27/16 ,  C08J5/18 ,  C08F214/222 ,  H10N30/098 ,  C08J2327/16 ,  C08L2203/20 ,  C08L2201/50

Abstract: The invention relates to aqueous dispersions of fluoropolymers comprising recurring units derived from vinylidene fluoride (VDF) in an amount of from 60% to 82% in moles and recurring units derived from trifluoroethylene (TrFE) in an amount of from 18% to 40% in moles, with respect to the total moles of recurring units, said fluoropolymers possessing an improved thermodynamic ordered structure in the ferroelectric phase.

公开(公告)号：US11414506B2

公开(公告)日：2022-08-16

申请号：US16604862

申请日：2018-04-09

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Mattia Bassi ,  Alessio Marrani ,  Fulvia Roncati ,  Eliana Ieva ,  Valeriy Kapelyushko

IPC: C08F214/22 ,  C08F214/26 ,  C08F2/30 ,  C09D127/18 ,  C08F114/26 ,  C08L27/18 ,  F16L11/04 ,  C08J3/05 ,  C08J5/18

Abstract: The present invention pertains to a process for manufacturing a semi-crystalline fluoropolymer, to the fluoropolymer obtainable by said process and to uses of said fluoropolymer in various applications.