1037 results about "Phosphonium" patented technology

Infrared absorbing compounds are disclosed. The compounds are co-polymers that comprise covalently attached ammonium, sulfonium, phosphonium, and / or iodonium cations, and infrared absorbing cyanine anions that have two to four sulfonate groups and / or sulfate groups, and / or infrared absorbing oxonol anions. The infrared absorbing compounds can be used in aqueous developable lithographic printing plate precursors.

The present invention relates to a blend of 15-97 weight percent electret fibers and 3-85 percent by weight dissimilar non-electret fibers using dry laid blending technique. The electret fibers incorporate 0.05 to 30 weight percent charge control agents. Optionally, at least about 3 to about 50 weight percent of said blend is bicomponent fibers having a low melting component to bond the blend into a unitary nonwoven structure. The blend is bonded to form nonwoven webs that are used in making filter fabric and particularly air filter fabric. The charge control agents are selected from the class of triphenylmethanes; ammonium and immonium compounds; fluorinated ammonium and immonium compounds; bis-cationic acid amides; polymeric ammonium compounds; diallylammonium compounds; arylsulfide derivatives; phenol derivatives; phosphonium compounds and fluorinated phosphonium compounds; calix(n)arenes; metal complex compounds; benzimidazolones; and azines, thiazines or oxazines which are listed in the Color Index as Pigments, Solvent Dyes, Basic Dyes or Acid Dyes. The preferred blend contains electret fibers of polypropylene with one or more charge control agents and polyethylene terephthalate fibers having no charge control agents.

The combustion fume flowing in through line 1 is decarbonated by contacting with a solvent in column C2. The solvent laden with carbon dioxide is regenerated in zone R. The purified fume discharged through line 9 comprises part of the solvent. The method allows to extract the solvent contained in the purified fume. The purified fume is contacted in zone ZA with a non-aqueous ionic liquid of general formula Q+ A−; Q+ designates an ammonium, phosphonium and / or sulfonium cation, and A− an anion likely to form a liquid salt. The solvent-depleted purified fume is discharged through line 17. The solvent-laden ionic liquid is regenerated by heating in evaporation device DE. The solvent separated from the ionic liquid in device DE is recycled.

An electrochromic device having an electrochromic medium which includes a compound represented by the following formula:wherein R1-R10 are the same or different and comprise H, an alkyl, cycloalkyl, polycycloalkyl, heterocycloalkyl, aryl, alkaryl, aralkyl, alkoxy, alkenyl, and / or alkynyl group containing approximately 1 to approximately 50 carbon atom(s), wherein the carbon atom(s) may be a linking group to, or part of, a halogen, a N, O, and / or S containing moiety, and / or one or more functional groups comprising alcohols, esters, ammonium salts, phosphonium salts, and combinations thereof; with the proviso that R2 and R7 each comprise at least two carbon atoms, at least one of R2 and R7 comprises less than 2 β hydrogen atoms and is void of a benzyl group.

The invention relates to a halogen-free Tg resin composite and a presoaked material and a laminated board made by adopting the composite. Counted by part by weight of organic solid matters, the halogen-free high-Tg resin composite contains the following components according to part by weight: (A) 10 to 50 parts by weight of cyanate resin; (B) 10 to 50 parts by weight of at least one compound withdihydro-benzoxazine ring; (C) 10 to 50 parts by weight of at least one kind of bismaleimides resin; (D) 10 to 50 parts by weight of at least one kind of poly-epoxy compound; and (E) 5 to 30 parts by weight of at least one kind phosphonium flame retardant. The halogen-free high-Tg resin composite has the performances of low water absorption, low CTE (coefficient of thermal expansion), high Tg, good dielectric property and the like, and the presoaked material and laminated board made by adopting the composite has the characteristics of high vitrification transition temperature, low CTE, low dielectric constant, low water absorption, high thermal resistance and the like, thus being application to multi-layer circuit boards.

For desulfurization and, if necessary, for denitrification of hydrocarbon fractions the hydrocarbon mixture is brought into contact with a non-aqueous ionic liquid of general formula Q+A−, wherein Q+ is a ammonium, phosphonium or sulfonium cation, that contains at least one alkylating agent of the formula RX−, making it possible to form ionic sulfur-containing derivatives (and, if necessary, nitrogen-containing derivatives) that have a preferred solubility in the ionic liquid; and the ionic liquid is separated from the hydrocarbon mixture that is low in sulfur and nitrogen by decanting.

An IR-absorbing phthalocyanine dye suitable for formulation in a solvent-based or oil-based ink vehicle is disclosed. The phthalocyanine comprises one or more sulfonate groups and a counterion of at least one sulfonate group is a phosphonium cation. Phosphonium salts of sulfonated gallium naphthalocyanines exemplify such dyes.