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    FLUOROELASTOMER COMPOSITION
    6.
    发明申请
    FLUOROELASTOMER COMPOSITION 审中-公开

    公开(公告)号：US20170313849A1

    公开(公告)日：2017-11-02

    申请号：US15523023

    申请日：2015-10-29

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

    Inventor： Marco AVATANEO ,  Matteo FANTONI ,  Luca CIRILLO ,  Stefano BOSSOLO

    IPC: C08K5/00 ,  B29C47/00 ,  B29C45/00 ,  B29C43/00 ,  C08K3/04 ,  B29C35/00 ,  B29K27/12

    CPC classification number: C08K5/0025 ,  B29C35/00 ,  B29C43/003 ,  B29C45/0001 ,  B29C48/022 ,  B29K2027/12 ,  C08K3/04 ,  C08L27/18

    Abstract: The invention pertains to a fluoroelastomer composition comprising:—at least one fluoroelastomer [perfluoroelastomer (A)], said fluoroelastomer (A) comprising iodine and/or bromine atoms and having a backbone comprising:—recurring units derived from tetrafluoroethylene (TFE);—recurring units derived from at least one perfluorinated monomer selected from the group consisting of:—perfluoroalkylvinylethers complying with formula CF2═CFORf1 in which Rn is a C1-C6 perfluoroalkyl (monomers of this type being referred to, herein after, as PAVE), e.g. —CF3, —C2F5, —C3F7;—perfluoro-oxyalkylvinylethers complying with formula CF2=CFOX0, in which X0 can be (i) a C1-C12 perfluorooxyalkyl having one or more ether groups, e.g. —C2F5—O—CF3; or (ii) a group of formula —CF2ORf2 in which Rf2 is a C1-C6 perfluoroalkyl, e.g. —CF3, —C2F5, —C3F7 (monomers of this type being referred to, herein after, as MOVE);—recurring units derived from vinylidene fluoride (VDF) in an amount of up to 30% by moles, with respect to the total moles of recurring units; and—optionally, recurring units derived from at least one perfluorinated C3-C8 alpha-olefin, in an amount of up to 5% moles;—optionally, recurring units derived from at least one fluorine-free alpha-olefin, in an amount of up to 10% moles;—from 0.5 to 5 weight parts, per 100 parts by weight of said fluoroelastomer (A), of at least one polyunsaturated compound;—from 0.1 to 3 weight parts, per 100 parts by weight of said fluoroelastomer (A), of at least one organic peroxide;—from 0.1 to 3 weight parts, per 100 parts by weight of said fluoroelastomer (A), of at least one organic base [base (B)] selected from the group consisting of: (i) non-aromatic primary amines or amides complying with general formula (B1m) or (B1d): Rbm—[C(0)]t-NH2 (B1m) H2N—[C(O)]t′—Rdm—[C(O)]t″—NH2 (B1d) wherein:—each of t, t′ and t″, equal to or different from each other and at each occurrence is zero or 1;—Rbm is a monovalent hydrocarbon non-aromatic group having 12 to 30 carbon atoms;—Rbm is a divalent hydrocarbon non-aromatic group having 6 to 30 carbon atoms; and (ii) cycloaliphatic secondary or tertiary amines complying with general formula (B2m) or (B2d) wherein:—Cy represents a divalent aliphatic group comprising at least 4 carbon atoms, optionally comprising one or more than one ethylenically unsaturated double bond, and optionally comprising one or more catenary nitrogen atoms, forming a cycle with the nitrogen atom which is connected thereto;—Cy′ represent a trivalent aliphatic group comprising at least 5 carbon atoms, optionally comprising one or more than one ethylenically unsaturated double bond, and optionally comprising one or more catenary nitrogen atoms, forming a cycle with the nitrogen atom which is connected thereto.

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