The present invention relates to a semi-crystalline polyolefinic ionomer and a process for the preparation of a semi-crystalline polyolefinic ionomer.

The present invention relates to a semi-crystalline polyolefinic ionomer and a process for the preparation of a semi-crystalline polyolefinic ionomer.

Copolymerization of elemental sulfur with functional comonomers afford sulfur copolymers having a high molecular weight and high sulfur content. Nucleophilic activators initiate sulfur polymerizations at relative lower temperatures and in solutions, which enable the use of a wider range of comonomers, such as vinylics, styrenics, and non-homopolymerizing comonomers. Nucleophilic activators promote ring-opening reactions to generate linear polysulfide intermediates that copolymerize with comonomers. Dynamic sulfur-sulfur bonds enable re-processing or melt processing of the sulfur polymer. Chalcogenide-based copolymers have a refractive index of about 1.7-2.6 at a wavelength in a range of about 5000 nm-8μ.Math.τ.Math.. The sulfur copolymer can be a thermoplastic or a thermoset for use in elastomers, resins, lubricants, coatings, antioxidants, cathode materials for electrochemical cells, dental adhesives/restorations, and polymeric articles such as polymeric films and free-standing substrates. Optical substrates are constructed from the chalcogenide copolymer and are substantially transparent in the visible and infrared spectrum.

The present disclosure provides purified forms of iobenguane and preparations of a precursor to iobenguane, such as a polymer, the polymer comprising a monomer of formula (I) ##STR00001##
or a pharmaceutically acceptable salt thereof, the preparation comprising leachable tin at a level of 0 ppm to 850 ppm.

The present disclosure provides purified forms of iobenguane and preparations of a precursor to iobenguane, such as a polymer, the polymer comprising a monomer of formula (I) ##STR00001##
or a pharmaceutically acceptable salt thereof, the preparation comprising leachable tin at a level of 0 ppm to 850 ppm.

Disclosed are novel phosphono-phosphate polymer compositions with multi-valent cations in aqueous solutions. These compositions can further include mono or multivalent anions.

Coating compositions including and incorporating biocidal compositions containing organoselenium and/or selenium-based compounds are disclosed, as well as methods of producing and using same. For instance, a coating composition comprises covalent linkage of an anchor group to the surface of a substrate, wherein the active group comprises an organic selenium compound acting as a biocidal composition attached to the anchor group.

Coating compositions including and incorporating biocidal compositions containing organoselenium and/or selenium-based compounds are disclosed, as well as methods of producing and using same. For instance, a coating composition comprises covalent linkage of an anchor group to the surface of a substrate, wherein the active group comprises an organic selenium compound acting as a biocidal composition attached to the anchor group.

Here are described polymers comprising monomeric units from vinylimidazole derivatives and their use in electrode materials and/or electrolyte compositions, as well as their methods of preparation. Also described are electrode materials, electrodes, and electrochemical cells comprising the polymers and their use.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition
(X.sub.1).sub.a—Sn—(X.sub.2).sub.4-a  [Formula 1]
wherein, a, X.sub.1, and X.sub.2 are the same as defined in the disclosure.