Abstract:
PROBLEM TO BE SOLVED: To obtain an initiator which is not decomposed into a radical till a high temperature is reached by selecting an initiator comprising a Diels-Alder adduct of conjugated double bonds with an azo group. SOLUTION: A Diels-Alder adduct of a dine with a compound of formula I or II is used. In formulae I and II, R and R are each an organic group, desirably, a 1-30C optionally N-, O-, or S-containing organic group, particularly desirably, a 1-20C alkyl, a 5-20C aryl, a cycloalkyl, a 6-20C alkaryl or aralkyl, especially, a 1-8C alkyl. The diene suitably used is exemplified by butadiene, cyclopentadiene, cyclohexadiene, or a derivative formed by substituting an organic group for at least one H atom of such a diene. This adduct is obtained by reacting an azo compound with a diene at, for example, 0-100 deg.C in a solvent. The adduct may have at least one substituent selected among groups of formulae III to VII (wherein A and A' are each a 1-30C organic group).
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a radiation-curable urethane- functional prepolymer PU, by reacting an isocyanate-functional component A with an OH-containing component B. SOLUTION: A component A comprises at least one trifunctional isocyanate compound A1 and optionally one or more bifunctional isocyanate compound A2. An OH-containing component B is composed of at least one OH-containing compound B1 containing at least one reactive OH group and optionally a different OH-containing compound B2. In the production, the component A consists of the two different isocyanate compounds A1 or one isocyanate compound A1 and at least one isocyanate compound A1 or the component B is composed of at least the two different compounds B1.
Abstract:
PROBLEM TO BE SOLVED: To provide an image forming method by using a mixture of a highly active radiation sensitive composition developable with an aqueous alkaline solution and an organic compound to be allowed to produce a strong acid and capable of forming a relief pattern and being both positively and negatively processed and containing a polymer binder and by exposing this radiation sensitive mixture containing this binder to short wavelength ultraviolet rays. SOLUTION: This polymer binder is a polymer or a polycondensation product obtained by polymerization or polycondensation of reaction products of the hydroxy groups of a phenolic polymer and dihydropyrane or alkylvinylether or those of the hydroxy group of a phenolic monomer and dihydropyrane or alkylvinyl-ether. An image is formed by exposing the radiation sensitive mixture containing the polymer binder to short wavelength ultraviolet rays.
Abstract:
The invention relates to a dispersion or solution of a polymer in water, organic solvents or mixtures thereof. The invention is characterised in that the polymer contains at least 0,001 mols of 3,4 dihydroxyphenyl groups (calculated at 109 g/mol) for 100 g polymer.
Abstract:
The invention relates to fluoranthene derivatives of general formula (I), wherein R , R , R and a are defined according to the description, with the proviso that at least one of the radicals R or R is not hydrogen. The invention also relates to a method for the production of said derivatives and to the use of fluoranthene derivatives as an emitter molecule in organic light-emitting diodes (OLEDs), a light-emitting layer containing the inventive fluoranthene derivatives as an emitter molecules, an OLED containing the inventive light-emitting layer and also to devices containing the inventive OLED.
Abstract:
The invention relates to a method for producing a coated substrate by applying at least one coating agent to the substrate and then hardening said coating agent in order to obtain a coat of lacquer on the substrate. The invention also relates to the coated substrates obtained by said method, and a coating agent.
Abstract:
The invention concerns a method for the production of coatings, adhesive layers or seals for primed or unprimed substrates, wherein (1) at least one coating material that can be hardened thermally and/or with actinic radiation and/or an adhesive and/or at least one sealant that can be hardened thermally and/or with actinic radiation in the form of a powder slurry is applied on and/or to the primed or unprimed substrate; (2) the resulting powder slurry layer is dried; (3) the resulting solid layer (2) is molten by heating and (4) the resulting molten layer obtained in step (3) of the method is hardened with near infrared radiation (NIR) in its molten state during and/or after solidification.
Abstract:
The invention relates to novel mixtures of polyalkoxylated trimethylolpropane (meth)acrylate of formula (I), wherein AO independently represents EO, PO, or BO for each AO, EO representing O-CH2-CH2-, PO independently representing O-CH2-CH(CH3)- or O-CH(CH3)-CH2-, BO independently representing O-CH2-CH(CH2-CH3)- or O-CH(CH2-CH3)-CH2-, p1 + p2 + p3 equals 28, 29, 30, 31, 32, 33, 34,35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74. or 75, and R1, R2, R3 independently represent H or CH3. Also disclosed are a simplified method for producing said ester mixtures and the use of the obtained reaction mixtures.
Abstract:
The invention concerns a method for the production of coatings, adhesive layers or seals for primed or unprimed substrates, wherein (1) at least one coating material that can be hardened thermally and/or with actinic radiation and/or an adhesive and/or at least one sealant that can be hardened thermally and/or with actinic radiation in the form of a powder slurry is applied on and/or to the primed or unprimed substrate; (2) the resulting powder slurry layer is dried; (3) the resulting solid layer (2) is molten by heating and (4) the resulting molten layer obtained in step (3) of the method is hardened with near infrared radiation (NIR) in its molten state during and/or after solidification.