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US 12,391,819 B2Granted
Fluoropolymer-based hybrid organic/inorganic composites
AssigneeSyensqo SA
InventorsChristine Hamon, Ségolène Brusseau, Riccardo Rino Pieri, Julio A. Abusleme
Life of this patent
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Abstract
The invention pertains to a process for manufacturing a fluoropolymer hybrid organic/inorganic composite, to fluoropolymer hybrid organic/inorganic composites obtained therefrom and to the use of the same in several fields of use.
Claims18
A polymer (F-h), wherein polymer (F-h) is a fluoropolymer hybrid organic/inorganic composite comprising fluoropolymer domains and inorganic domains, said polymer (F-h) being obtained by reaction between:
- at least one polymer (F), wherein polymer (F) is at least one fluoropolymer comprising:
- (i) recurring units derived from at least one fluorinated monomer (FM)
- (ii) recurring units derived from at least one (meth)acrylic monomer (MA) of formula:
- wherein each of R1, R2, R3, equal or different from each other, is independently a hydrogen atom or a C1-C3 hydrocarbon group, and ROH is a C1-C5 hydrocarbon moiety comprising at least one hydroxyl groups, and
- (iii) optionally recurring units derived from at least one fluorinated monomer (FM2) different from VDF;
- wherein polymer (F) has an intrinsic viscosity measured in dimethylformamide at 25° C. higher than 0.09 l/g and lower than 0.6 l/g;
- and
- at least one metal compound (M) of formula (I):
- X4-mAYm (I)
- wherein m is an integer from 1 to 4, A is a metal selected from the group consisting of Si, Ti and Zr, Y is a hydrolysable group, X is a hydrocarbon group, optionally comprising one or more functional groups,
- wherein the fluoropolymer domains derive from polymer (F) and the inorganic domains derive from compound (M), and
- wherein the inorganic domains are grafted to the fluoropolymer domains through reaction of at least a fraction of the ROH groups of the monomer (MA) with at least a fraction of the hydrolysable groups Y of compound (M).
9 more elements
A process for manufacturing a polymer (F-h), wherein polymer (F-h) is a fluoropolymer hybrid organic/inorganic composite, said process comprising:
- (a) providing a mixture of:
- at least one polymer (F), wherein polymer (F) is at least one fluoropolymer comprising:
- (i) recurring units derived from at least one fluorinated monomer (FM),
- (ii) recurring units derived from at least one (meth)acrylic monomer (MA) of formula:
- wherein each of R1, R2, R3, equal or different from each other, is independently a hydrogen atom or a C1-C3 hydrocarbon group, and ROH is a C1-C5 hydrocarbon moiety comprising at least one hydroxyl group, and
- (iii) optionally recurring units derived from at least one fluorinated monomer (FM2) different from VDF;
- wherein polymer (F) has an intrinsic viscosity measured in dimethylformamide at 25° C. higher than 0.09 l/g and lower than 0.6 l/g;
- and
- at least one metal compound (M) of formula (I):
- X4-mAYm (1)
- wherein m is an integer from 1 to 4, A is a metal selected from the group consisting of Si, Ti and Zr, Y is a hydrolysable group, X is a hydrocarbon group, optionally comprising one or more functional groups,
- (b) reacting at least a fraction of hydroxyl groups of the ROH groups of said monomer (MA) of said polymer (F) with at least a fraction of said compound (M), so as to obtain a grafted polymer comprising pendant —Ym-1AX4-m groups, with m, Y, A and X having same meaning as above detailed;
- (c) hydrolyzing and/or polycondensing compound (M) and/or pendant —Ym-1AX4-m groups, as above detailed to yield a polymer (F-h) comprising inorganic domains.
10 more elements
Dependencies are inferred from the claim text.