Patent ID: 11873357
Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 4:
5. The composition (C) of claim 4, wherein said fluoroelastomer (A) is selected from:
(1) VDF-based copolymers, in which VDF is copolymerized with at least one additional comonomer selected from the group consisting of:
(a) C2-C8 perfluoroolefins;
(b) hydrogen-containing C2-C8 fluorinated olefins;
(c) C2-C8 fluoroolefins comprising at least one of iodine, chlorine and bromine;
(d) (per)fluoroalkylvinylethers (PAVE) of formula CF2═CFORf, wherein Rf is a C1-C6 (per)fluoroalkyl group;
(e) (per)fluoro-oxy-alkylvinylethers of formula CF2═CFOX, wherein X is a C1-C12 ((per)fluoro)-oxyalkyl comprising catenary oxygen atoms;
(f) (per)fluorodioxoles having formula:, , wherein each of Rf3, Rf4, Rf5, Rf6, equal to or different from each other, is independently selected from the group consisting of fluorine atom and C1-C6 (per)fluoroalkyl groups, optionally comprising one or more than one oxygen atom;
(g) (per)fluoro-methoxy-vinylethers having formula:

CF2═CFOCF2ORf2 

wherein Rf2 is selected from the group consisting of C1-C6 (per)fluoroalkyls; C5-C6 cyclic (per)fluoroalkyls; and C2-C6 (per)fluorooxyalkyls, comprising at least one catenary oxygen atom;
(h) C2-C8 non-fluorinated olefins (Ol); and
(2) TFE-based copolymers, in which TFE is copolymerized with at least one additional comonomer selected from the group consisting of (c), (d), (e), (g), (h) and (i) as above detailed.