Abstract: Intraocular lens materials are disclosed. They are soft and very deformable and have a high refractive index, and a high glistening resistance in fully hydrated state. They are particularly suitable for making wet-packed intraocular lenses (IOLs) which can be delivered through sub 2.0 mm incisions.

Abstract: Embodiments of methods of producing 1,4-polybutadiene comprise polymerizing a solution comprising conjugated diene monomer and organic solvent to yield 1,4-polybutadiene having a cis content of between about 92% to about 98%, a vinyl content of about 1% to about 5%, a trans content of about 1 to about 3%, a molecular weight distribution (MWD) of about 3 to about 5, and a Mooney viscosity (ML1+4) at 100° C. of less than 60. The polymerization achieves over an 80% conversion of the conjugated diene monomer when catalyzed with a catalyst comprising at least one nickel compound, at least one aluminum activator compound, and a mixture of BF3.hexanol and BF3.H2O. For the catalyst, the molar ratio of Ni/H2O is from about 0.05 to about 20 and the molar ratio of BF3/H2O is from about 1.8 to about 500.

Abstract: A process to prepare a vinylidene chloride heteropolymer comprising copolymerizing vinylidene chloride with at least one comonomer selected from the group consisting of alkyl acrylates, non-vinylidene chloride vinyl monomers and combinations thereof in the presence of an indicator, wherein the indicator is soluble in vinylidene chloride, the at least one comonomer, or a mixture of the vinylidene chloride and the at least one comonomer is provided.

Abstract: The invention pertains to a tetrafluoroethylene (TFE) copolymer comprising recurring units derived from at least one perfluoroalkyl(oxy)vinylether of formula CF2?CF—O—Rf, wherein Rf is a C1-C6 perfluoroalkyl radical possibly comprising one or more ethereal oxygen atoms [monomer (F)], in an amount of 0.005 to 0.025% moles, with respect to the total moles of the copolymer, wherein a particular relation between monomer content and amorphous index is satisfied, and to a process for its manufacture by emulsion polymerization in the presence of certain cyclic surfactants.

Abstract: Water-insoluble anion exchange materials which exhibit improved insolubility in water are used, for example, for anion exchange membranes or as anion exchange resins.

Abstract: A process for the preparation of fluorinated compounds having at least one —OSF5 group, said method comprising the step of reacting SOF4 with a fluorinated 3- or 4-membered cyclic ether in the presence of a fluoride catalyst.

Abstract: A film layer comprising a high-chi (?) block copolymer for self-assembly and a hexafluoroalcohol-containing surface active polymer (SAP) was prepared on a substrate surface that was neutral wetting to the domains of the self-assembled block copolymer. The block copolymer comprises at least one polycarbonate block and at least one other block (e.g., a substituted or unsubstituted styrene-based block). The film layer, whose top surface has contact with an atmosphere, self-assembles to form a lamellar or cylindrical domain pattern having perpendicular orientation with respect to the underlying surface. Other morphologies (e.g., islands and holes of height 1.0 Lo) were obtained with films lacking the SAP. The SAP is preferentially miscible with, and lowers the surface energy of, the domain comprising the polycarbonate block.

Abstract: A method for preparing a polymeric material doped with at least one first metal element and at least one second metal element, including: a) copolymerization of a first monomer containing a first metal element and of a second monomer containing a chelating group of a second metal element, to obtain a polymeric material containing (i) recurrent units deriving from the polymerization of the first monomer, the recurrent units containing the first metal element and (ii) recurrent units deriving from the polymerization of the second monomer, the recurrent units containing chelating groups of a second metal element, and when the first metal element is different from the second metal element, b) contacting the material from a) with a solution containing the second metal element, in return for which the second metal element is complexed with the chelating groups, where b) is optional when the first and second metal element are identical.

Abstract: A composition includes a compound including a structural unit represented by the above Chemical Formula 1, and a structural unit represented by the above Chemical Formula 2 on at least one terminal end.

Abstract: The invention pertains to a process for manufacturing a fluoroelastomer [fluoroelastomer (A)] having a heat of fusion of less than 5 J/g as measured by ASTM D-3418-08, said method comprising emulsion polymerizing vinylidene fluoride (VDF) in the presence of at least one additional fluorinated monomer, in an aqueous polymerization medium, said method comprising polymerizing VDF and said additional fluorinated monomer(s) in the presence of a redox radical initiator system comprising: —at least one organic oxidizing agent [agent (O)]; —at least one organic reducing agent [agent (R)]; wherein agent (O) is fed to said polymerization medium separately from agent (R), so that agent (O) comes in contact with agent (R) exclusively in said polymerization medium comprising VDF and optional additional monomer(s), to fluoroelastomers having low amount of chain defects and low amount of polar end groups, notably obtainable from said process, and to curable compositions therefrom.

Abstract: Disclosed herein is an electrically conductive adhesive composition and its use in solar cell modules, wherein the electrically conductive adhesive comprises a polymer matrix and dispersed in the polymer matrix about 40-90 wt % of conductive particles, with the wt % of all components comprised in the compositions totaling to 100 wt %, and wherein the polymer matrix comprises or is formed of a blend of at least one ethylene/alkyl (meth)acrylate copolymer elastomer and at least one ethylene vinyl acetate copolymer at a weight ratio ranging from about 10:90 to about 70:30.

Abstract: A metal exchanged fluorinated ionomer is a copolymer minimally including repeating units of (i) a polymerized derivative of a perfluorinated cyclic or cyclizable monomer and (ii) a strong acid highly fluorinated vinylether compound in which the acid moiety is exchanged with a cation of a Group 11 metal. Metal exchanged fluorinated ionomers are readily soluble and can be formed into thin, selectively gas permeable membranes by solution deposition methods. These membranes are suitable for separating olefins from gas olefin/paraffin mixtures. Good selectivity and transmembrane flux can be obtained without humidifying the membrane feed gas mixture.

Abstract: Disclosed herein is an electrically conductive adhesive composition and its use in solar cell modules, wherein the electrically conductive adhesive comprises a fluoroelastomer matrix and dispersed in the fluoroelastomer matrix about 40-90 wt % of conductive particles, with the wt % of all components comprised in the compositions totaling to 100 wt %.

Abstract: Systems and methods for ion exchange regeneration for resins onsite at an industrial facility are disclosed. The resins can be boron selective resins and the systems and methods can utilize onsite regeneration, recycling of certain effluent streams, and/or treated water as a main water source for regeneration.

Abstract: A peroxide curable perfluoroelastomer comprising: recurring units derived from tetrafluoroethylene (TFE); recurring units derived from perfluoroethylvinylether (EVE), in an amount of between 2 and 17% by moles, with respect to total recurring units derived from TFE, perfluoromethylvinylether (MVE) and EVE; and recurring units derived from perfluoromethylvinylether (MVE), in an amount of between 23 and 35% by moles, with respect to total recurring units derived from TFE, perfluoromethylvinylether (MVE) and EVE. A process for its manufacture and its use for the manufacture of cured articles.

Abstract: Disclosed herein is co-ABPBI membranes comprising co-ABPBI of formula (I), Invention discloses a sol gel process for the synthesis of membranes comprising co-ABPBI of formula (I).

Abstract: The present invention relates to a method for preparing a vinyl chloride copolymer having good heat resistance and a vinyl chloride copolymer produced by the same. In the preparation method, by not injecting an N-substituted maleimide based compound used as a comonomer together with a vinyl chloride monomer at one time in a pre-polymerization step, but in division in a specific ratio, a copolymer with a uniform distribution of the N-substituted maleimide based compound and the vinyl chloride monomer may be easily prepared, and the vinyl chloride copolymer may have good heat resistance. Accordingly, the preparation method of a vinyl chloride copolymer and the vinyl chloride copolymer according to the present invention may be easily applied to industries requiring the copolymer, particularly industries requiring a resin having good heat resistance as well as industries using a vinyl chloride resin.

Abstract: The disclosure herein includes rapid gas decompression (RGD)-resistant fluoroelastomeric compositions and includes a curable fluoropolymer having a curesite monomer with at least one functional group capable of curing with a peroxide curative. The compositions include a bisphenyl-based curative and an organic peroxide curative and an organic peroxide co-curative. The fluoroelastomeric compositions have a ratio of the bisphenyl-based curative to the organic peroxide co-curative of about 0.25:1 to about 1.5:1 and a ratio of the bisphenyl-based curative to the organic peroxide of about 0.5:1 to about 1.5:1. Such compositions can be formed into seals meeting RGD industry standards in a variety of sizes, up to and/or exceeding 5 mm in thickness or cross-sectional diameter.

Abstract: Disclosed herein are compositions of, synthesis methods and methods of use for improved molecularly imprinted polymers useful for extracting target molecule compounds of wine.

Abstract: A fluorine-containing cyclic olefin polymer composition of the present invention includes a fluorine-containing cyclic olefin polymer (A) containing a repeating structural unit represented by the general formula (1) and having a fluorine atom content rate of 40 to 75% by mass; a photocurable compound (B); and a photocuring initiator (C).