Abstract:
A detection device for detecting a marker in a liquid, comprising a reaction chamber (5), provided with a thermosensitive sensor (6), wherein said reaction chamber (5) comprises an photopolymer capable of releasing or generating a chemical species that is capable of undergoing or initiating an exothermic or endothermic chemical reaction with a marker present in the liquid.
Abstract:
Epoxy resin compositions that include oligomeric phosphonates, carbodiimides, carbodiimides and phenolic antioxidants or phosphite antioxidants, oligomeric phosphonates and carbodiimides, or oligomeric phosphonates, carbodiimides, and phenolic antioxidants or phosphite antioxidants and exhibit improved glass transition temperature, improved heat resistance, and improved flame retardancy are described herein.
Abstract:
A two part, curable, epoxy composition useful for potting or sealing electrical devices for use in hazardous locations. Cured reaction products of the epoxy composition meet most or all UL 674 requirements and are useful to seal apertures in electrical equipment. Equipment sealed with the disclosed compositions can meet the UL 674 requirement.
Abstract:
Die vorliegende Erfindung betrifft hitzehärtbare Zusammensetzungen, enthaltend eine Mischung von reaktiven Epoxidharzen, die, bezogen auf die Masse aller Epoxidharze a) mindestens 10 Gew.-% eines Epoxidgruppen-haltigen Reaktionsprodukts von Epichlorhydrin mit Polypropylenglykol, das ein Epoxid-Äquivalentgewicht von mindestens 250g/eq aufweist, sowie b) mindestens 10 Gew.-% eines Epoxidgruppen-haltigen Reaktionsprodukts von Epichlorhydrin mit einem Novolakharz, das ein Epoxid-Äquivalentgewicht von mindestens 175g/eq aufweist, enthält, und mindestens einen latenten Härter.
Abstract:
A method comprising (a) mixing a stabilizer comprising a metal-containing compound, the metal-containing compound comprising a metal selected from the group consisting of Group 11 -13 metals and combinations thereof, into a dispersant to provide a dispersion; and (b) adding the dispersion to a varnish, is disclosed.
Abstract:
It is an object of the present invention to provide a method of coating a square wire capable of providing an insulated wire of a square wire that has a high dielectric breakdown voltage. A method of coating a square wire comprising a step of carrying out cationic electrodeposition on a square wire to form an insulating film thereon, by using a cationic electrocoating that stored in an electrocoating bath, wherein the shifting speed of the square wire in the electrocoating bath is set in a range from 1 to 80 m/min; the shortest distance from a liquid-contact portion of the square wire onto the cationic electrocoating to an electrode is set longer than 1/2 of the total shift distance of the square wire from the liquid-contact portion of the square wire to a liquid-separation portion in the electrocoating bath, the cationic electrocoating contains a resin composition of which a hydratable functional group is reduced directly by electrons and passivated, resulting in deposition of a film, and the cationic electrocoating contains crosslinked resin particles.
Abstract:
A curable composition includes specific amounts of a ketone, a curable component, and particulate poly(phenylene ether) having a mean particle size of 3 to 12 micrometers and a particle size relative standard deviation of 20 to 60 percent. The composition has a low viscosity that facilitates wetting of reinforcing structures, and composites formed from the composition and a reinforcing structure cure to form a dielectric material with a low dielectric constant and loss tangent.