Disclosed are fluorinated vinyl polymer resin compositions, and prepregs and laminate materials containing the same. The fluorinated vinyl polymer resin composition includes a fluorine-substituted vinyl polymer resin and a functional polymer, where the fluorine-substituted vinyl polymer resin has the chemical structure: ##STR00001## where the maximum particle size is less than about 100 microns, at least one of the substituents R.sub.1, R.sub.2, R.sub.3, and R.sub.4 includes a fluorine atom, and where n is greater than about 100. The fluorinated vinyl polymer resin composition can be incorporated in prepreg and laminate materials.

Disclosed are fluorinated vinyl polymer resin compositions, and prepregs and laminate materials containing the same. The fluorinated vinyl polymer resin composition includes a fluorine-substituted vinyl polymer resin and a functional polymer, where the fluorine-substituted vinyl polymer resin has the chemical structure: ##STR00001## where the maximum particle size is less than about 100 microns, at least one of the substituents R.sub.1, R.sub.2, R.sub.3, and R.sub.4 includes a fluorine atom, and where n is greater than about 100. The fluorinated vinyl polymer resin composition can be incorporated in prepreg and laminate materials.

A mechanically and piezoelectrically anisotropic polymer thin film is formed from a crystallizable polymer and an additive configured to interact with the polymer to facilitate chain alignment and, in some examples, create a higher crystalline content within the polymer thin film. The polymer thin film and its method of manufacture may be characterized by a bimodal molecular weight distribution where the molecular weight of the additive may be less than approximately 5% of the molecular weight of the crystallizable polymer. Example polymers may include vinylidene fluoride, trifluoroethylene, chlorotrifluoroethylene, hexafluoropropylene, and vinyl fluoride. Example additives may occupy up to approximately 60 wt. % of the polymer thin film. The polymer thin film may be characterized by a piezoelectric coefficient (d.sub.31) of at least approximately 5 pC/N or an electromechanical coupling factor (k.sub.31) of at least approximately 0.1.

A mechanically and piezoelectrically anisotropic polymer thin film is formed from a crystallizable polymer and an additive configured to interact with the polymer to facilitate chain alignment and, in some examples, create a higher crystalline content within the polymer thin film. The polymer thin film and its method of manufacture may be characterized by a bimodal molecular weight distribution where the molecular weight of the additive may be less than approximately 5% of the molecular weight of the crystallizable polymer. Example polymers may include vinylidene fluoride, trifluoroethylene, chlorotrifluoroethylene, hexafluoropropylene, and vinyl fluoride. Example additives may occupy up to approximately 60 wt. % of the polymer thin film. The polymer thin film may be characterized by a piezoelectric coefficient (d.sub.31) of at least approximately 5 pC/N or an electromechanical coupling factor (k.sub.31) of at least approximately 0.1.

Disclosed are a heat conductive sheet including a resin and a particulate carbon material, and having a thermal resistance value under a pressure of 0.05 MPa of 0.20 C./W or less, a heat dissipation device including the heat conductive sheet interposed between a heat source and a heat radiator, and a method of producing a heat conductive sheet.

The invention pertains to a thermoplastic vulcanizate fluorine-containing composition [vulcanizate (C)], comprising a continuous thermoplastic fluoropolymer phase and a dispersed vulcanized fluoroelastomer phase, said composition comprising:at least one thermoplastic fluoropolymer [polymer (F)];at least one (per)fluoroelastomer [elastomer (A)], andat least one plasticizer selected from the group consisting of organic esters [plasticizer (P)].

The invention pertains to a thermoplastic vulcanizate fluorine-containing composition [vulcanizate (C)], comprising a continuous thermoplastic fluoropolymer phase and a dispersed vulcanized fluoroelastomer phase, said composition comprising:at least one thermoplastic fluoropolymer [polymer (F)];at least one (per)fluoroelastomer [elastomer (A)], andat least one plasticizer selected from the group consisting of organic esters [plasticizer (P)].

Described herein is a curable composition comprising: (a) a perfluoroelastomer gum having a carboxylic acid integrated absorbance ratio of at least 0.015; and (b) a compound comprising at least one oxazole moiety, and cured articles thereof.

Described herein is a curable composition comprising: (a) a perfluoroelastomer gum having a carboxylic acid integrated absorbance ratio of at least 0.015; and (b) a compound comprising at least one oxazole moiety, and cured articles thereof.

A polymer optical fibre (POF) (30) for transmitting light of wavelength, ?i, between two separate elements of an active implantable medical device (AIMD), includes a core (31) which is cylindrical and made of a cyclic olefin polymer (COP) or copolymer (COC), having a core refractive index at the wavelength, ?i, n_core, A cladding (32) which has a cladding refractive index at the wavelength, ?i, n_clad<n_core, and which is made of a cladding copolymer including monomers of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride. The cladding being itself enclosed in a coating (33) which is made of a coating polymer formed of one of the monomers of the cladding copolymer. The POF has a numerical aperture, NA, at the wavelength, ?i, of at least 0.5.