Abstract:
The present invention relates to a method of producing at cast one coating film on at least one area of a substrate surface, which comprises at least the following steps in the following order: a) initiating at least one crosslinking reaction in at least one reactive coating formulation; b) applying said at least one reactive coating formulation before the onset of said at least one crosslinking reaction on said at least one area of said substrate surface. The present invention additionally relates to a corresponding means of producing at least one coating film on at least one area of a substrate surface, having at least the following elements: a) at least one storage container for at least one reactive coating formulation, b) at least one exposure unit, preferably a UV exposure unit, more preferably a UV laser, and c) at least one application unit having a nozzle, in particular a spraying head, and/or d) a bell for electrostatic application (ESTA bell), wherein said at least one exposure unit is designed so that the radiation generated in said at least one exposure unit is brought into contact with said at least one reactive coating formulation in said at least one application unit. Also claimed, finally, is a coating film which can be produced by the method of the invention.
Abstract:
A positive-working radiation-sensitive mixture essentially consists of (a) at least one polymer which contains acid-labile groups and is insoluble in water but becomes soluble in aqueous alkaline solutions as a result of the action of acid, (b) at least one organic compound which produces an acid under the action of actinic radiation and (c) at least one further organic compound differing from (b), where the polymer (a) contains incorporated units of the formulae (I), (II) and (III) ##STR1## and the organic compound (b) is a sulfonium salt of the formula (IV) ##STR2## The radiation-sensitive mixture is suitable for the production of relief structures having improved contrast.
Abstract:
A positive-working radiation-sensitive mixture essentially consists of (a.sub.1) at least one water-insoluble, organic polymeric binder which contains acid-labile groups and becomes soluble in aqueous alkaline solutions as a result of the action of acid, or (a.sub.2.1) a polymeric binder which is insoluble in water and soluble in aqueous alkaline solutions and (a.sub.2.2) a low molecular weight organic compound whose solubility and aqueous alkaline developer is increased as a result of the action of acid, and (b) at least one organic compound which produces an acid under the action of actinic radiation, and, if required, (c) one or more further organic compounds which differ from (b), at least one of the components (a.sub.1), (a.sub.2.1), (a.sub.2.2), (b) and (c) containing a bonded group of the general formula (I) --O.sup..crclbar. N.sup..sym. R.sub.4, or component (c) being of the formula (II) ##STR1## The radiation-sensitive mixture is suitable for the production of relief structures.
Abstract:
Radiation-curable (meth)acrylates obtainable by reacting compounds of the formula ##STR1## in which R is C.sub.1 -C.sub.4 -alkyl, aryl or R.sup.1 and R.sup.1 is ##STR2## in which R.sup.2 to R.sup.6 independently of one another are H, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, OH, phenyl, SH, SCH.sub.3, SC.sub.2 H.sub.5, F, Cl, Br, CN, COOH, COO--(C.sub.1 -C.sub.17 -alkyl), COO--(C.sub.5 -C.sub.10 -aryl), CF.sub.3, N(alkyl).sub.2, N(alkyl)(aryl), N(aryl).sub.2, N.sup..sym. (alkyl).sub.3 A.sup..crclbar., N.sup..sym. H(alkyl).sub.2 A.sup..crclbar., A.sup..crclbar. is the anion of an acid, and alkyl or aryl, unless indicated otherwise, is C.sub.1 -C.sub.10 -alkyl or C.sub.5 -C.sub.10 -aryl, respectively, and at least one but not more than 3 of R.sup.2 to R.sup.6 are ##STR3## with hydroxy(meth)acrylates containing at least 1 free hydroxyl group and at least 2 (meth)acrylic groups in the molecule.
Abstract:
A positive-working UV-sensitive mixture containing(a1) an organic binder containing acid-labile ether, ester or carbonate groups or(a2) a polymeric binder which is insoluble in water but soluble in aqueous alkaline solutions and(a2.1) an organic compound whose solubility in an aqueous alkaline developer is increased by the action of an acid, or(a2.2) an organic compound whose solubility in an aqueous alkaline developer is increased by the action of an acid and which contains one or more acid-cleavable groups and in addition a group which forms an acid under the action of radiation, or a mixture of the organic compounds (a2.1) and (a2.2) and(b) an arylsulfonic ester, is suitable for the production of relief patterns.
Abstract:
A radiation-sensitive mixture suitable for producing relief patterns comprises(a) a water-insoluble but alkali-soluble polymeric binder,(b) an organic compound whose solubility in an alkaline developer is increased by the action of acid and which contains at least one acid-cleavable group and additionally a group which forms a strong acid on irradiation, and additionally(c) an organic compound which reacts with water or stronger nucleophiles at up to 120.degree. C.
Abstract:
Novel sulfonium salts useful as photoinitiators for cationic polymerization and for producing relief patterns and relief images have the general formula (I) ##STR1## where A.sup..crclbar. is a non-nucleophilic counterion,x is 1, 2 or 3,R is a hydrocarbon radicalR' is arylene or substituted arylene, andR" is ##STR2## where R.sup.1, R.sup.2 and R.sup.3 are each alkyl or monohalogenated or polyhalogenated alkyl orR.sup.1 and R.sup.2 are each hydrogen or alkyl, and R.sup.3 is phenyl, alkenyl or cycloalkenyl, orR.sup.1 is hydrogen, and R.sup.2 and R.sup.3 form ethylenically unsaturated ring, orR.sup.1 and R.sup.2 are each hydrogen, alkyl, cycloalkyl or aryl, and R.sup.3 is alkoxy orR.sup.1 is hydrogen or alkyl and R.sup.2 and R.sup.3 are each alkoxy, aryloxy or substituted aryloxy.
Abstract:
In a photosensitive recording material suitable for producing plates or resist patterns, the photopolymerizable recording layer contains as polymeric binder a film-forming copolymer which has a multiphase morphology, one phase having a glass transistion temperature below room temperature and a further phase having a glass transition temperature above room temperature and this copolymer having been obtained by free radical copolymerization of one or more macromers with one or more further olefinically unsaturated copolymerizable organic compounds.
Abstract:
The present invention relates to a radiation-curable antimicrobial coating composition, to a process for preparation thereof, and to the use thereof.