摘要:
A method for preparing olegourethanacrylates having the general formula ##STR1## where ##STR2## is a radical of a telogen; X is H, CH.sub.3 or a halide;R is a radical of glycol, bis-phenol, amino alcohol;R' is a radical of polyamine;R" is a radical of polyol;R" is R' if the telogen contains ##STR3## group; R"' is R" if telogen contains - N(Y)H group;n is the number characterizing the degree of polycondensation of the oligourethanacrylate equal to zero, unity, or a whole number greater than unity, consisting in carrying out a reaction of a non-equlibrium polycondensation of chloroformiates of polyols with polyamines and telogens, which are chloroformiates of monoesters of alkyleneglycols and acids of the acrylic series, chloroformiates of monoesters of bis-phenols and acids of the acrylic series, monoaminoalkyl esters of acids of the acrylic series, N-substituted monoaminoalkyl esters of acids of acrylic series, in the medium of organic solvents or in a system of an water-organic solvent, in the presence of acceptors of hydrogen chloride which is liberated in the reaction.
摘要:
Silicon containing polyamine scale inhibitors derived from poly(primary amine)s are disclosed. The scale inhibitors can be used to reduce siliceous scale formation in industrial process streams such as alumina recovery process streams, nuclear waste streams and kraft paper mill effluent streams.
摘要:
Solar energy device comprising at least one of a photovoltaic cell or a solar thermal collector having an absorption bandwidth in the infrared wavelength region of the solar spectrum; a visible light-transmitting reflector; and at least one of a graphic film or lighted display. The graphic film or a lighted display present is visible through the visible light-transmitting reflector. The solar energy devices can be used, for example, as a sign (e.g., an advertising sign or a traffic sign), on the side and/or roof, as well as in a window, of a building.
摘要:
Antimicrobial compositions and methods for depositing or coating the antimicrobial or antibacterial compositions on a substrate to prevent microbial adhesion are provided. The antimicrobial composition may include a cationic polymer having a poly-allylamine backbone. A portion of the poly-allylamine backbone may be functionalized with at least one of a guanidine functional group and a biguanide functional group.
摘要:
Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
摘要:
Solar energy device comprising at least one of a photovoltaic cell or a solar thermal collector having an absorption bandwidth in the infrared wavelength region of the solar spectrum; a visible light-transmitting reflector; and at least one of a graphic film or lighted display. The graphic film or a lighted display present is visible through the visible light-transmitting reflector. The solar energy devices can be used, for example, as a sign (e.g., an advertising sign or a traffic sign), on the side and/or roof, as well as in a window, of a building.
摘要:
Disclosed herein is a process for producing polymers of an N-vinyl carboxamide, including the steps of flowing a reaction mixture containing an aqueous liquid containing at least one polymerisation initiator, N-vinyl carboxamide monomer or a monomer mixture containing N-vinyl carboxamide into a reactor system, and polymerising the monomer or monomer mixture to produce the polymer of a N-vinyl carboxamide. The polymers resulting therefrom may be hydrolysed to provide polymers containing vinyl amine units. Also disclosed herein is an apparatus suitable for producing the polymers.
摘要:
A cationizing agent for cationizing a cloth prior to the firm fixing of water-insoluble particles onto the cloth, said cationizing agent comprising a polymer having a constituent unit (a1) derived from a vinylamine monomer represented by formula (1). (In the formula, R1 represents a hydrogen atom or a methyl group.)
摘要:
A water-soluble photo-activatable polymer including: a photo-activatable group adapted to be activated by an irradiation source and to form a covalent bond between the water-soluble photo-activatable polymer and a matrix having at least one carbon; a reactive group adapted to covalently react with a biomaterial for subsequent delivery of the biomaterial to a cell; a hydrophilic group; and a polymer precursor. A composition including a monomolecular layer of the water-soluble photo-activatable polymer and a matrix having at least one carbon, wherein the monomolecular layer is covalently attached to the matrix by a covalent bond between the photo-activatable group and the at least one carbon. The composition further includes a biomaterial having a plurality of active groups, wherein the biomaterial is covalently attached to the monomolecular layer by covalent bonding between the active groups and reactive groups. Also provided is a method for delivery of a biomaterial to a cell.
摘要:
This invention relates to a process for forming a long-chain branched polymer and a long-chain branched polymer resulting from the process. The process comprises reacting (a) a polyolefin base polymer with (b) a coupling agent comprising a polymeric coupling agent, optionally blended with a molecular coupling agent, the polymeric coupling agent being a modified polyolefin having a reactive coupling group at one or more terminal ends of the modified polyolefin chain, to couple the polyolefin base polymer (a) with the coupling agent (b) to form a long-chain branched polymer having a long-chain branching and/or higher surface energy relative to the polyolefin base polymer.