Abstract:
Die Erfindung betrifft Bindemittel mit Barriere-Eigenschaften, enthaltend: A) mindestens eine im Bereich von 18°C bis 100 °C, bevorzugt 20°C bis 80°C, fließfähige Verbindung mit mindestens einer durch Bestrahlung härtbaren reaktiven funktionellen Gruppe als Komponente (A); B) mindestens eine Verbindung mit mindestens einer durch Bestrahlung härtbaren reaktiven funktionellen Gruppe und mindestens einer COOH-Gruppe als Komponente (B); und C) mindestens einen nanoskaligen Füllstoff als Komponente (C), der bevorzugt ausgewählt ist aus der Gruppe: Oxide, Nitride, Halogenide, Sulfide, Carbide, Telluride, Selenide der zweiten bis vierten Hauptgruppe, der Übergangselemente, der Lanthanide und/oder aus der Gruppe der Polyorganosiloxane. Das Bindemittel wird als strahlenhärtbares Bindemittel in Beschichtungsmitteln, Füll-, Dicht- oder Klebstoffen eingesetzt. Die Erfindung betrifft auch ein Verfahren zur Herstellung von Verbundfolien mit Barriere-Eigenschaften gegenüber CO 2 , O 2 , N 2 Wasserdampf und Aromastoffen, unter Verwendung des erfindungsgemäßen Bindemittels sowie die nach dem Verfahren hergestellten Verbundfolien.
Abstract:
The object of the present invention is a coating material curing at low temperatures of below 120 DEG C, containing: A) one or more carboxyl group-containing polymers with a number average molecular weight of 500 to 8000 and an acid number of 15 to 200 mg KOH/g as essential binder components; B) one or more epoxide group-containing compounds as cross-linking agents; and C) one or more organic solvents; This coating material is characterized in that the epoxide group-containing compound (B) can be produced from: 1. a biuret and/or isocyanate and/or urethane group-containing di and/or polyisocyanate compound and glycidyl alcohol of formula (I) in which R is an alkylene radical with 1 to 10 C atoms and R1 is H, a methyl or ethyl group, and/or: 2. a di and/or polyisicyanate and allyl alcohol followed by epoxiding the double bonds. The present invention also concerns a process for producing this coating agent and its use in car repair painting.
Abstract:
Disclosed is an aqueous composition for surface coating, including: a main ingredient comprising a first compound having at least two functional groups selected from the group consisting of a carboxyl group, a hydroxyl group, an amino group and combinations thereof, per molecule; a curing agent comprising a second compound having at least two functional groups selected from the group consisting of an aziridine group, an isocyanate group, a carbodiimide group and combinations thereof, per molecule; and an aqueous solvent. Further, an automotive sheet using the aqueous composition for surface coating is disclosed.
Abstract:
To provide a dispersion composition having a high refractive index and giving an excellent surface state to a film after coating, and a curable composition, a transparent film, a microlens and a solid-state imaging device each using the dispersion composition; and provide a compound able to afford a dispersion composition having a high refractive index and giving an excellent surface state to a film after coating and drying and maintain the dispersion stability of particles. A dispersion composition containing (A) a metal oxide particle having a primary particle diameter of 1 to 100 nm, (B) a polymer compound represented by the following formula (1) having a weight average molecular weight of 10,000 or less, and (C) a solvent: in formula (1), R 1 represents an (m+n)-valent linking group, R 2 represents a single bond or a divalent linking group, A 1 represents a monovalent substituent having at least one group selected from the group consisting of an acid group, a urea group, a urethane group, a coordinating oxygen atom-containing group, a basic nitrogen atom-containing group, a phenol group, an alkyl group, an aryl group, an alkyleneoxy chain-containing group, an imide group, an alkyloxycarbonyl group, an alkylaminocarbonyl group, a carboxylate group, a sulfonamide group, a heterocyclic group, an alkoxysilyl group, an epoxy group, an isocyanate group and a hydroxyl group, n number of A 1 or R 2 may be the same or different from each other, m represents a positive number of 8 or less, n represents from 1 to 9, m+n satisfies the range of 3 to 10, P 1 represents a polymer chain, and m number of P 1 may be the same or different from each other.
Abstract:
The invention relates to a bonding agent with barrier properties, comprising: A) at least one compound which is fluid in a range of 18 °C to 100 °C, preferably 20 °C to 80 °C, with at least one reactive functional group which may be hardened by radiation as component (A), B) at least one compound with at least one reactive functional group which may be hardened by radiation and with at least one COOH-group as component (B) and C) at least one nanoscale filler as component (C), preferably selected from the group of oxides, nitrides, halides, sulphides, carbides, tellurides, selenides of the second to fourth main group, transition elements, lanthanides and/or the group of polyorganosiloxanes. The bonding agent is used as a radiation-hardening bonding agent in coating agents, fillers, sealers or adhesives. The invention further relates to a method for the production of composite films with barrier properties against CO2, O2, N2, water vapour and flavourings using said bonding agents and composite films made by said method.
Abstract:
An organic solvent-based heat-curable high solid coating composition comprising:
(A) a carboxyl-containing compound having an acid value of 50 to 500 mg KOH/g wherein 20 mol% or more of the carboxyl groups are silylated carboxyl groups, (B) at least one epoxide selected from (B-1) an epoxy-, hydroxyl- and hydrolyzable alkoxysilyl-containing vinyl polymer, (B-2) the vinyl polymer (B-1) wherein 20 mol% or more of the hydroxyl groups are silylated hydroxyl groups, and (B-3) an epoxy compound having a number average molecular weight less than 1,000, and (C) a crosslinked particulate polymer, the composition having a solid content of 65 wt.% or more; and a method for forming a topcoat using the composition. The composition of the invention has a sufficiently high solid content, is capable of forming a coating film with high resistance to acids and the like, and is excellent in low-temperature curability, storage stability and recoat adhesion.
Abstract:
A coating composition for use as an overcoat or heat resistant coating having improved heat resistance comprised of an aqueous latex polymer emulsion and a water soluble or water-dispersible resin which containing a sufficient number of either (a) carboxyl groups or (b) carboxyl and amide groups which will form at least one anhydride ring or imide, in the presence of sufficient heat, and release water molecules, with the latex polymer having a particle size of less than about 1600 Angstroms and containing an effective amount of a nitrogen containing volatile base to achieve a pH of greater than about 7.5 to keep the resin solubilized or dispersed.