The invention pertains to a polyunsaturated compound having formula (I) [compound (DAIC-PFPE)]: T.sup.A-OR.sub.f-T.sup.A wherein: R.sub.f is (per)fluoropolyoxyalkylene chain [chain (R.sub.f)] comprising recurring units having at least one catenary ether bond and Sat least one fluorocarbon moiety; T.sup.A and T.sup.A, equal to or different from each other, are selected from the group consisting of: (i) C.sub.1-C.sub.24 (hydro)(fluoro)carbon groups, possibly comprising one or more than one of H, O, and Cl; and (ii) (hydro)(fluoro)carbon group comprising at least one diallylisocyanurate group of formula (A) wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 is, independently, a hydrogen atom or a C.sub.1-C.sub.3 hydrocarbon group, preferably a hydrogen atom (group T.sup.DAIC), with the provisio that at least one of T.sup.A and T.sup.A is a group T.sup.DAIC, to a process for its manufacture and its use for curing fluoroelastomers, to fluoroelastomer compositions comprising the same, as well as to a process for producing fluororubber mouldings therefrom.

##STR00001##

The invention pertains to a polyunsaturated compound having formula (I) [compound (DAIC-PFPE)]: T.sup.A-OR.sub.f-T.sup.A wherein: R.sub.f is (per)fluoropolyoxyalkylene chain [chain (R.sub.f)] comprising recurring units having at least one catenary ether bond and Sat least one fluorocarbon moiety; T.sup.A and T.sup.A, equal to or different from each other, are selected from the group consisting of: (i) C.sub.1-C.sub.24 (hydro)(fluoro)carbon groups, possibly comprising one or more than one of H, O, and Cl; and (ii) (hydro)(fluoro)carbon group comprising at least one diallylisocyanurate group of formula (A) wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 is, independently, a hydrogen atom or a C.sub.1-C.sub.3 hydrocarbon group, preferably a hydrogen atom (group T.sup.DAIC), with the provisio that at least one of T.sup.A and T.sup.A is a group T.sup.DAIC, to a process for its manufacture and its use for curing fluoroelastomers, to fluoroelastomer compositions comprising the same, as well as to a process for producing fluororubber mouldings therefrom.

##STR00001##

The present invention pertains to a process for manufacturing a vinylidene fluoride polymer, to a polymer obtainable via said process and to an article comprising the same.

The present invention pertains to a process for manufacturing a vinylidene fluoride polymer, to a polymer obtainable via said process and to an article comprising the same.

To provide a polyvinylidene fluoride resin composition that is less likely to cause dehydrofluorination reaction of the vinylidene fluoride-based polymer during molding and that has high transparency, and a molded body thereof. The resin composition that achieves the object described above contains a vinylidene fluoride-based polymer as a main component, and an ammonium phosphate and/or an imidazolium sulfate.

In some aspects, polymeric yarns and communications cables incorporating the same are provided herein. Additionally, in some aspects, methods of producing polymeric yarns and communications cables incorporating the same are provided.

In some aspects, polymeric yarns and communications cables incorporating the same are provided herein. Additionally, in some aspects, methods of producing polymeric yarns and communications cables incorporating the same are provided.

The invention relates to a method of polymerizing at least one fluorinated monomer comprising an ethylene bond, the method comprising putting in contact the at least one fluorinated monomer with a polymerization initiator and a chain transfer agent, the chain transfer agent being a polysulfide compound, preferably a disulfide compound. The invention also relates to a telechelic fluoride-based polymer obtained with said method.

A packing article for the storage and/or transport of items and materials requiring high levels of cleanliness is described. Methods of making and using the packaging article are also described. The packaging article may be used to store or transport, for example, advanced optical components, or materials and components used in the manufacturing of microelectronic devices or optical components. A method of making the packaging article includes contacting the packaging article with organic solvent(s) and acidic solution(s) and rinsing with ultrapure water. Interior cleanliness levels for various contaminants, such as, metals, anionic materials, organic compounds, and particles may be verified and the packaging articles may be labeled and sorted according to cleanliness level.

A packing article for the storage and/or transport of items and materials requiring high levels of cleanliness is described. Methods of making and using the packaging article are also described. The packaging article may be used to store or transport, for example, advanced optical components, or materials and components used in the manufacturing of microelectronic devices or optical components. A method of making the packaging article includes contacting the packaging article with organic solvent(s) and acidic solution(s) and rinsing with ultrapure water. Interior cleanliness levels for various contaminants, such as, metals, anionic materials, organic compounds, and particles may be verified and the packaging articles may be labeled and sorted according to cleanliness level.