A resin composition including an aromatic polyether ketone resin (I), and a fluororesin (II), the fluororesin (II) being a copolymer of tetrafluoroethylene and a perfluoroethylenic unsaturated compound represented by the following formula (1):
CF.sub.2CFR.sub.f.sup.1(1)
wherein R.sub.f.sup.1 represents CF.sub.3 or OR.sub.f.sup.2, and R.sub.f.sup.2 represents a C1 to C5 perfluoroalkyl group; the composition containing the aromatic polyether ketone resin (I) and the fluororesin (II) at a mass ratio (I):(II) of 95:5 to 50:50; the fluororesin (II) being dispersed as particles in the aromatic polyether ketone resin (I) and having an average dispersed particle size of 3.0 m or smaller.

Fluorinated photoinitiators and polymerizable compositions including such fluorinated photoinitiators and at least one free-radically polymerizable monomer, oligomer, or mixture thereof. Multilayer films including a substrate and at least a first layer overlaying a surface of the substrate also are described, in which the at least first layer includes a (co)polymer obtained by polymerizing the foregoing polymerizable compositions. Processes for making a multilayer film using the polymerizable composition also are taught. Articles including the multilayer film also are disclosed, in which the article preferably is selected from a photovoltaic device, a display device, a solid-state lighting device, a sensor, a medical or biological diagnostic device, an electrochromic device, light control device, or a combination thereof.

Fluorinated photoinitiators and polymerizable compositions including such fluorinated photoinitiators and at least one free-radically polymerizable monomer, oligomer, or mixture thereof. Multilayer films including a substrate and at least a first layer overlaying a surface of the substrate also are described, in which the at least first layer includes a (co)polymer obtained by polymerizing the foregoing polymerizable compositions. Processes for making a multilayer film using the polymerizable composition also are taught. Articles including the multilayer film also are disclosed, in which the article preferably is selected from a photovoltaic device, a display device, a solid-state lighting device, a sensor, a medical or biological diagnostic device, an electrochromic device, light control device, or a combination thereof.

A method for making a halo (alkyl vinyl) ether comprising heating a reaction mixture comprising a combination of i) a metal; ii) a solvent; and iii) a halo (alkyl ethyl) ether according to formula (1) RCF.sub.2OC(H)(X)CF.sub.2Y (1) where R is independently H, F, Cl, Br, CF.sub.2H, CF.sub.3, CF.sub.2CF.sub.2H, linear perfluoroalkyl having 1 to 12 carbon atoms, or cyclic perfluoroalkyl having 1 to 12 carbon atoms, and X and Y are independently Cl, Br, I, or F, where X and Y are not both F; to form a reaction product mixture comprising a halo (alkyl vinyl) ether, the solvent, unreacted metal, and a metal salt.

A method for making a halo (alkyl vinyl) ether comprising heating a reaction mixture comprising a combination of i) a metal; ii) a solvent; and iii) a halo (alkyl ethyl) ether according to formula (1) RCF.sub.2OC(H)(X)CF.sub.2Y (1) where R is independently H, F, Cl, Br, CF.sub.2H, CF.sub.3, CF.sub.2CF.sub.2H, linear perfluoroalkyl having 1 to 12 carbon atoms, or cyclic perfluoroalkyl having 1 to 12 carbon atoms, and X and Y are independently Cl, Br, I, or F, where X and Y are not both F; to form a reaction product mixture comprising a halo (alkyl vinyl) ether, the solvent, unreacted metal, and a metal salt.

The invention relates to a method of polymerizing at least one monomer comprising a vinylidene fluoride monomer, the method comprising putting in contact the at least one monomer with a polymerization initiator and an oxidizing agent, the polymerization initiator having the formula (I):
(R.sub.fSO.sub.2.sup.).sub.xM.sup.x+(II)
wherein R.sub.f is a fluoroalkyl group comprising from 1 to 3 carbon atoms; and M.sup.x+ is chosen from a monovalent cation, or a divalent cation, or a trivalent cation, or a tetravalent cation.

The invention relates to a method of polymerizing at least one monomer comprising a vinylidene fluoride monomer, the method comprising putting in contact the at least one monomer with a polymerization initiator and an oxidizing agent, the polymerization initiator having the formula (I):
(R.sub.fSO.sub.2.sup.).sub.xM.sup.x+(II)
wherein R.sub.f is a fluoroalkyl group comprising from 1 to 3 carbon atoms; and M.sup.x+ is chosen from a monovalent cation, or a divalent cation, or a trivalent cation, or a tetravalent cation.

To provide a method for producing a fluorinated elastomer, by which a fluorinated polymer excellent in water dispersion stability can be efficiently produced without using an emulsifier, while an aqueous medium with a small environmental impact is used. A method for producing a fluorinated elastomer, which comprises, in an aqueous dispersion that contains substantially no water-soluble emulsifier, and contains a first fluorinated polymer having TFE units and PAVE units and an aqueous medium, polymerizing a monomer containing TFE and PAVE to produce a second fluorinated polymer, wherein in the first fluorinated polymer, a content of the PAVE units is 20 to 95 mol % to a total content of the TFE units and the PAVE units, in the second fluorinated polymer, a content of the PAVE units is 20 to 95 mol % to a total content of the TFE units and the PAVE units, and before start of the polymerization of the monomer, a content of the first fluorinated polymer is 0.01 to 4.0 mass % to a total mass of the aqueous dispersion.

To provide a method for producing a fluorinated elastomer, by which a fluorinated polymer excellent in water dispersion stability can be efficiently produced without using an emulsifier, while an aqueous medium with a small environmental impact is used. A method for producing a fluorinated elastomer, which comprises, in an aqueous dispersion that contains substantially no water-soluble emulsifier, and contains a first fluorinated polymer having TFE units and PAVE units and an aqueous medium, polymerizing a monomer containing TFE and PAVE to produce a second fluorinated polymer, wherein in the first fluorinated polymer, a content of the PAVE units is 20 to 95 mol % to a total content of the TFE units and the PAVE units, in the second fluorinated polymer, a content of the PAVE units is 20 to 95 mol % to a total content of the TFE units and the PAVE units, and before start of the polymerization of the monomer, a content of the first fluorinated polymer is 0.01 to 4.0 mass % to a total mass of the aqueous dispersion.