摘要:
The present invention relates to acid-curing aqueous coating compositions, in particular for the coating of veneer films and continuous edges, containing an amino resin and a hydroxyl-containing polyester.
摘要:
The present invention relates to acid-curing aqueous coating compositions, in particular for the coating of finish sheeting and continuous edging, which contain aminoplast resin and hydroxyl-containing polyesters, wherein the polyester is prepared froma) 33 to 55 mol % of a dicarboxylic acid component obtained froma.sub.1) 50 to 100 mol % of olefinically unsaturated aliphatic dicarboxylic acidsa.sub.2) 0 to 50 mol % of saturated aliphatic dicarboxylic acidsa.sub.3) 0 to 50 mol % of saturated aliphatic dicarboxylic acids andb) 67 to 45 mol % of a polyol component obtained fromb.sub.1) 20 to 90 mol % of at least one monomeric and/or oligomeric glycol having 2 to 4 carbon atoms per glycol segment and number average molecular weights smaller than 200b.sub.2) 5 to 30 mol % of at least one polymeric glycol having 2 to 4 carbon atoms per glycol segment and a number average molecular weight between 300 and 1000 andb.sub.3) 0 to 70 mol % of at least one polyol having 2 to 4 OH groups and 4 to 10 carbon atoms per molecule, except the glycols used as component b.sub.1.
摘要:
Method of preparing single-layer or multilayer color and/or effect films comprising a color and/or effect layer, by (1) continuously applying a component amount of a basecoat material (A) by means of a directed application technique to a carrier, the applicator (1) and the carrier being in relative motion with respect to one another, to construct a portion of the color and/or effect layer, (2) at least once, continuously applying the remainder of the basecoat material (A) and/or a basecoat material (B), which is different than the basecoat (A), to the component layer (1) formed by an application technique (2) which in the resulting component layer (2) induces no arrangement of the pigments in a preferential direction, the applicator (2) and the carrier being in relative motion with respect to one another, to further or fully construct the color and/or effect layer, and (3) drying or partly or fully curing the color and/or effect layer.
摘要:
Method of preparing single-layer or multilayer color and/or effect films comprising a color and/or effect layer, by (1) continuously applying a component amount of a basecoat material (A) by means of a directed application technique to a carrier, the applicator (1) and the carrier being in relative motion with respect to one another, to construct a portion of the color and/or effect layer, (2) at least once, continuously applying the remainder of the basecoat material (A) and/or a basecoat material (B), which is different than the basecoat (A), to the component layer (1) formed by an application technique (2) which in the resulting component layer (2) induces no arrangement of the pigments in a preferential direction, the applicator (2) and the carrier being in relative motion with respect to one another, to further or fully construct the color and/or effect layer, and (3) drying or partly or fully curing the color and/or effect layer.
摘要:
A corrosion inhibiting mixture comprising (A1) corrosion-inhibiting pigments, (A2) amorphous silica modified with metal ions, and (A3) at least one compound of the general formula I: Mn(X)m (I) in which the variables and indices have the following meanings: M is at least one central atom selected from the group of Lewis acceptors, X stands for Lewis donor ligands having at least one bridging atom selected from elements of main groups 5 and 6 of the periodic table of the elements, n is from 1 to 500, and m is from 3 to 2000; coating materials comprising said mixture and their use as coil coating materials.
摘要:
Coating compositions and processes for coating wood and wood materials are described. The compositions comprise a first component comprising at least one reactive thinner and at least one unsaturated polyester, and a second component comprising a curing catalyst. The unsaturated polyester of the first component is the reaction product of: (a) a mixture of at least one saturated aliphatic dicarboxylic acid with 6 to 10 carbon atoms and at least one ethylenically unsaturated aliphatic dicarboxylic acid selected from maleic acid, fumaric acid, itaconic acid, citraconic acid, and mixtures thereof; (b) a diol component consisting of at least one of 1,4-dimethylolcyclohexane and substituted dimethylolcyclohexanes, with up to 50 mol % monomeric or oligomeric glycol, based on total moles of the diol component; and (c) up to 10 mol % of a polyol, based on total moles of polyester reactants. The compositions and processes of the invention result in coatings with improved hardness and aged cold crack resistance.
摘要:
The present invention relates to a liquid, radiation-curable coating composition for the coating of glass surfaces which comprisesA) 56 to 89% by weight of at least one diethylenically unsaturated polyurethane optionally containing urea groups,B) 3 to 30% by weight of at least one ethylenically unsaturated monomer,C) 0.5 to 8% by weight of at least one photoinitiator andD) 0.05 to 6% by weight of an alkoxysilane,the sum total of the components A to D being 100% by weight in each case.The coating composition uses1.) one or more ethylenically unsaturated monomers containing carboxyl groups, optionally together with other ethylenically unsaturated monomers as the component B and2.) an alkoxysilane containing epoxide groups as the component D.These coating compositions are employed for the coating of glass surfaces, in particular of optical glass fibers, and are distinguished by good adhesion even under humid conditions.
摘要:
A process is disclosed for producing moldings, in which a pigmented coating composition (P) and a free-radically crosslinkable coating composition (K), which after crosslinking to completion produces a transparent coating (KE) are applied to a support sheet, wherein a dried but as yet not completely crosslinked coating (KT) is produced from the coating composition (K), the coated support sheet is shaped and is injection backmolded or foam-backed, and the coating (KT) is cured or aftercured; the crosslinkable coating composition (K) comprising a free-radically crosslinkable component (KK) which contains hydrogen bond forming structural elements.
摘要:
The invention relates to an aqueous coating material for metallic substrates, comprising a water-dispersible and/or water-soluble polymer P with a gradient in the concentration of covalently bonded hydrophilic groups along the main polymer chain, the polymer P having covalently bonded ligands A, which form chelates with the metal ions released during the corrosion of the substrate and/or with the substrate surface, and having crosslinking functional groups B, which with themselves, with further complementary functional groups B′ of the polymer P and/or with further functional groups B and/or B′ are able to form covalent bonds to crosslinkers V.
摘要:
Disclosed herein is a copolymer (A) of olefinically unsaturated monomers (a), prepared by single-stage or multistage controlled free-radical copolymerization in an aqueous medium of monomers comprising: (a1) an olefinically unsaturated monomer comprising a chelate-forming group; and (a2) an olefinically unsaturated monomer different from the olefinically unsaturated monomer (a1), and selected from the group consisting of: (a21) monomers of the general formula I: R1R2C═CR3R4 (I), wherein R1, R2, R3, and R4 are independently hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of R1, R2, R3, and R4 are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals; (a22) an olefinically unsaturated terpene hydrocarbon; and (a23) a dimeric alpha-alkylvinylaromatic. Also disclosed is a method of inhibiting the crystallization of nanoparticles and/or dispersing nanoparticles, and compositions comprising crystallization inhibited nanoparticles and/or dispersed nanoparticles.