Abstract:
There is disclosed a resin composition for powder coatings, which comprises a blend of two acrylic resins being obtained by polymerizing a proscribed amount of monomer component (a-1) represented by formula (I) and a prescribed amount of another monomer component (a-2), respectively, and having different polymerization degrees represented by viscosities at 140°C and a polybasic acid compound in 1.5 to 0.5 equivalent ratio of the glycidyl groups in said acrylic resins to the acid groups in the polybasic acid compound. wherein R 1 and R 2 each represent a hydrogen atom or a lower alkyl group. Disclosure described provides a resin composition for powder coatings that can form a coating film having a mat smooth appearance and excellent in flexibility as shown Du pont impact resistance and the Ericksen test as well as excellent in nail scratch resistance.
Abstract:
There is disclosed a resin composition for powder coatings, which comprises a blend of two acrylic resins being obtained by polymerizing a proscribed amount of monomer component (a-1) represented by formula (I) and a prescribed amount of another monomer component (a-2), respectively, and having different polymerization degrees represented by viscosities at 140°C and a polybasic acid compound in 1.5 to 0.5 equivalent ratio of the glycidyl groups in said acrylic resins to the acid groups in the polybasic acid compound. wherein R 1 and R 2 each represent a hydrogen atom or a lower alkyl group. Disclosure described provides a resin composition for powder coatings that can form a coating film having a mat smooth appearance and excellent in flexibility as shown Du pont impact resistance and the Ericksen test as well as excellent in nail scratch resistance.
Abstract:
Die Erfindung betrifft durch Protonieren mit Säure wasserverdünnbare Bindemittel, Verfahren zu deren Herstellung und deren Verwendung. Diese Bindemittel sind durch Umsetzung eines
A) Reaktionsprodukts einer
a) carboxylgruppenhaltigen Komponente, bestehend aus einem
a1) carboxylgruppenhaltigen Butadien/Acrylnitrilcopolymeren mit einem Molekulargewicht von 500 bis 8000, gegebenenfalls im Gemisch mit a2) einer von a1) verschiedenen Dicarbonsäure und gegebenenfalls a3) einer Monocarbonsäure und einem
b) diprimären und/oder primären/sekundären Amin mit der Maßgabe, daß 0,7 bis 5 Mol des diprimären und/oder des primären/sekundären Amins pro Mol Carboxylgruppen der Komponente a) eingesetzt werden
mit mindestens einem B) Epoxidharz mit einem mittleren Molekulargewicht von 300 bis 6000 und im Mittel 1,5 bis 3,0 Epoxidgruppen pro Molekül und gegebenenfalls C) einem sekundären aliphatischen oder cycloaliphatischen Amin erhältlich. Sie eignen sich in Kombination mit einem Vernetzer als Überzugsmittel, insbesondere für die kathodische Elektrotauchlackierung.
Abstract:
A method of forming a flexible printed material is described. The method comprises applying a layer of primer onto a flexible substrate; electrostatically printing onto the layer of primer a liquid electrostatic ink composition; applying a curable overprint varnish composition onto the printed electrostatic ink composition and curing the overprint varnish composition using electron beam irradiation. The curable overprint varnish composition comprises an ethylenically unsaturated monomer, an ethylenically unsaturated oligomer, or mixtures thereof, and less than 10 wt.% of a cross-linking additive based on the total weight of the curable overprint varnish composition. A flexible package comprising the flexible printed material is also described.
Abstract:
The present invention includes coating compositions having a microgel, wherein the microgel is prepared from a carboxyl functional polymer and a hybrid crosslinker system, wherein the hybrid crosslinker system has a first crosslinker having an epoxy resin and a second crosslinker having a thermally active crosslinker.