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73 results about "Carbonyl derivatives" patented technology

Other organic carbonyls are urea and the carbamates, the derivatives of acyl chlorides chloroformates and phosgene, carbonate esters, thioesters, lactones, lactams, hydroxamates, and isocyanates. Examples of inorganic carbonyl compounds are carbon dioxide and carbonyl sulfide.

Electrical insulating resin material, electrical insulating material, and electric wire and cable using the same

InactiveUS6479590B1Easy to processSuperior low temperature forming propertyPlastic/resin/waxes insulatorsInsulated cablesPolymer scienceAlkene
The present invention relates to a resin material for an electrical insulating material, an electrical insulating material and electric wire and cable using the same. A resin material for an electrical insulating material according to present invention is characterized in that the resin component thereof comprises an ethylene alpha-olefin copolymer (A) which satisfies specific conditions, such as a density of 0.92~0.96 g/cm3, a melt flow rate (MFR) of 0.01~200 g/10 minutes, a molecular weight distribution (Mw/Mn) of 1.5~5.0, and possessing only one peak in terms of the number of peaks observed in an elution temperature-eluted amount curve as measured by the temperature raising elution fractionation (TREF) method, etc., wherein said resin component contains a unit derived from at least one type of monomer selected from among a carbonyl or carbonyl derivative group-containing monomer, a hydroxyl group-containing monomer, a nitro group-containing monomer, a nitrile group-containing monomer, an aromatic ring-containing monomer, and a compound or monomer containing two or more ethylenic linkages. This resin material for an electrical insulating material is suitable for use in an electrical insulating material for an electric wire and cable, as it exhibits excellent processability and electrical insulating properties without degradation of the mechanical strength, and even after cross-linking, exhibits superior electrical insulating properties.
Owner:JAPAN POLYOLEFINS CO LTD

Preparation and application of novel isopropyl zirconocene complex

The invention provides a novel metallocene catalyst and a green catalytic synthesis method of a polyarylate substituted 1,3-dicarbonyl compound developed by the catalyst. Zirconium atoms in the metallocene catalyst are connected with each other through two isopropyl-substituted cyclopentadienyl rings to display tetravalence; the zirconium atoms are coordinated with three hydrones; and the overall organic zirconium cationic part and the corresponding anions form an ion bond. The green synthesis method comprises the following steps: with a 1,3-dicarbonyl compound with active hydrogen as a reaction raw material, and aryl alcohol as an alkylation agent, carrying out intramolecular dehydration alkylation reaction under catalysis of perfluorooctane sulfonate isopropyl cyclopentadienyl zirconium; and obtaining a series of multiaryl-substituted 1,3-dicarbonyl compounds at a relatively low temperature and high yield. The method has the main advantages of being mild in reaction condition, simple to test and operate, high in yield and the like; the reaction is suitable for kinds of 1,3-dicarbonyl derivatives and different aryl alcohol; with perfluorooctane sulfonate isopropyl cyclopentadienyl zirconium as a catalyst, the catalyst can be recycled and used for a plurality of times; and meanwhile, the sole by-product is water, and has the advantages of being green, free of pollution and the like.
Owner:HUNAN UNIV

Reactive dye compounds

InactiveCN1351635AIncrease Exhaustion Rate (E)Increase the fixation rate (F) valueCosmetic preparationsHair cosmeticsFiberCompound a
A reactive dye compound comprising: (a) at least one chromophore moiety, (b) at least one nitrogen-containing heterocycle, (c) a linking group to link each chromophore moiety to each nitrogen-containing heterocycle; characterised in that at least one nitrogen-containing heterocycle is substituted with at least one oxy- or thio-carbonyl derivative wherein the oxy- or thio-carbonyl derivative is selected from Y wherein Y is -A(CO)R* wherein A is selected from O or S and wherein R* is an organic residue which comprises at least one nucleophilic group, and salts thereof. The compounds herein have high Exhaustion Values (E), high Efficiency Values (T) and show significant improvements in terms of reducing spent dyestuff in effluent, increasing dye affinity to the substrate, increasing the dye-substrate covalent bonding, increasing the ability to dye substrates at room temperature, decreasing the amount of the dye that is removed during the post dyeing 'soaping off process' and therefore simplifying the post dyeing 'soaping off process' traditionally associated with dyeing cotton with fibre reactive dyes and reduction of staining of adjacent white fabrics. In addition, the compounds prepared above provide more intense dyeings and require less levels of salt for dyeing cotton substrates.
Owner:THE UNIV OF NORTH CAROLINA AT CHAPEL HILL
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