摘要:
Plasma encapsulation for electronic and microelectronic components such as OLEDs. The invention relates to a plasma encapsulation for electronic and microelectronic components such as OLEDs. However, a conventional standard plasma coating process is not used; instead, an especially gentle plasma coating process which does not cause any damage to sensitive components such as an OLED is used, such as the pulsed method or the “remote” or “after glow method.”
摘要:
The invention provides epoxy resin compounds for manufacturing prepregs and composite materials, which can be obtained inexpensively and have good processibility, and provide--without having to add flameproofing agents--virtually inflammable molded materials with a high glass transition temperature. The epoxy resin compounds contain the following constituents:(A) an aromatic and/or heterocyclic polyepoxide resin that is free of phosphorous, optionally in a mixture with an aliphatic epoxy resin;(B) an epoxy-group-containing phosphorous compound and(C) an aromatic polyamine as a curing agent.
摘要:
An insulating tape for manufacturing an insulating sleeve, impregnated with a hot-curing epoxy-resin acid-anhydride system, for electrical conductors.The insulating tape for manufacturing an insulating sleeve, impregnated with a hot-curing epoxy resin-hardener system, consists of an inorganic material, of high dielectric strength which is applied to a flexible support and is bonded by means of a binder and contains an accelerator which promotes the curing reaction, whereby the binder/accelerator mixture constitutes a system that is self-curing at the curing temperature of the impregnating resin.In the case of the binder/accelerator mixture, the binder consists of a physiologically innocuous, ring-epoxidized, cycloaliphatic epoxy resin, modified by molecular enhancement, with an epoxide equivalent greater than 200, and the accelerator adducts of piperazines, substituted in 1 position, with (meth)acrylate compounds.Such an insulating tape (1) can be stored indefinitely at ambient temperature and insulating sleeves (5) of electrical conductors (6) manufactured with it can be cured after being impregnated with epoxy resin/acid-anhydride-systems in economically short times and possess excellent rigidity and a high heat-distortion temperature.
摘要:
Reaction resin mixtures which can be economically processed provide inflammable molded materials with excellent mechanical properties and high dimensional stability under heat when they contain the following constituents: (A) a phosphorus-free polyfunctional epoxide; (B) an epoxy-group-containing phosphorus compound; (C) a polyfunctional isocyanate; (D) a curing catalyst; and, if required, (E) filler material.
摘要:
A heat-hardenable reaction resin mixture including a polyisocyanate; a polyepoxy resin and an olefinically unsaturated compound having no active hydrogen atoms. Addition complexes of tertiary amines and boron trichloride having the general formula BCl.sub.3.NR.sub.1 R.sub.2 R.sub.3 are used as accelerators. Polymerizate inhibitors may also be added. The mixture is very storage-stable and hardens in short times (quickly) at elevated temperatures. The molding materials obtained in this manner are highly resistant to thermal aging.
摘要:
This invention relates to a method for the manufacture of molded material for an insulating component made of a quick-hardening reaction resin which employs a hardening catalyst. An object of the invention is to provide reaction resins which allow the manufacture of molded materials with increased dimensional heat resistance and at the same time, good mechanical properties. According to the invention, a reaction resin mixture of a polyepoxide and a polyisocyanate (EP/IC resin) with a formula mole ratio EP:IC of about 1 to 5 and a viscosity of up to about 7000 mPa.multidot.sec (at 25.degree. C.) is cross-linked under pressure by means of a tertiary amine or imidazole hardening catalyst at a gelling temperature of about 130.degree. to 150.degree. C. and is post-hardened at a temperature of 150.degree. to 200.degree. C. This produces a reaction resin molded material (OX/ICR molding material) containing oxazolidinone and isocyanurate rings with a mole ratio OX:ICR greater than 1 and, after hardening, the reaction of the epoxy and isocyanate groups of the EP/IC resin, is above about 90%.
摘要:
The invention relates to a heat-hardened molded material produced from a resin mixture of a polyfunctional epoxide, a polyfunctional isocyanate and a reaction accelerator, which optionally contains additives and/or fillers. The objective is to make a resin mixture which permits the manufacture of a highly heat-resistant molded material, and which has at the same time a high-temperature cycle resistance and good mechanical properties. For this purpose, the polyfunctional epoxide of the resin includes a polyoxyalkylene glycol polyglycidyl ether.
摘要:
The invention relates to a method for cross-linking radically cross-linkable polymers and for stabilizing such polymers against oxidative and/or thermal decomposition. The method is developed so that rapid and economical cross-linking of radically cross-linkable polymers is obtained in the presence of oxidation inhibitors without adverse effects on the cross-linking process due to the oxidation inhibitor. For this purpose, the invention provides that the cross-linking is carried out in the presence of oxidation inhibitors, wherein the inhibition-active --OH and/or --NH functions are at least partially substituted by protective silyl- and/or silylene groups, the inhibitor molecule containing at least one Si-alkenyl group. The method according to the invention is suitable for use with radical as well as radiation-cross-linkable polymer.
摘要:
The invention relates to an organic light-emitting diode (OLED) having an improved lifetime and improved transport of negative charge carriers. The organic light-emitting diode is based on an organic semiconductor material, in which the transport of negative charge carriers and stability with respect to reduction is achieved with triarylated Lewis acid units, in particular perarylated borane units. This leads to an improved lifetime of the emission layer which in turn increases the lifetime of the component and eliminates the need for correcting brightness during operation. Furthermore, the invention relates to organic light-emitting diodes in which the position of the emission zone in the emitter layer and the color of the emission can be influenced in a targeted manner through triarylated Lewis acids such as perarylated borane units.
摘要:
The invention relates to novel 2-(N,N-di(het)arylamino)-thiophene derivatives of formula (I), wherein R1, R2, R3, R4 and R5 are, independently each of other, each a monofunctional (het)aryl system and wherein R1 can also be a bifunctional (het)arylene system, R3 can also be a group R8, except when R1 is a bifunctional (het)arylene system, R8 representing chemical bond or a bifunctional (het)arylene system, R4 can also mean R10, R10 representing a chemical bond or a bifunctional (het)arylene system, or R4 can be one of the following groups (II) and (III), R9 representing a chemical bond or a bifunctional (het)arylene system and R5 can also be H or (IV).