Abstract:
The curable coating composition of the invention comprises a film forming component (A) and a wrinkle reducing catalyst (B) comprising a compound of the formula: My(L)x; wherein M is a metal having an empty or full d orbital and wherein the pk2 of the aqua ion of M is less than or equal to 12; L is a ligand wherein the pka of the parent acid is >/=-10 and is
Abstract:
The invention provides an acrylic polymer or oligomer comprising random repeating units of the formula: (I) wherein X is a carbamate and L is a linking group, a method of making said polymers and curable coating compositions comprising the same.
Abstract:
The present invention provides a coating composition containing 1) a carbamate-functional resin having in its structure a hyperbranched or star polyol core, a first chain extension based on a polycarboxylic acid or anhydride, a second chain extension based on an epoxy containing compound, and having carbamate functional groups on the core, the second chain extension, or both; and 2) a second resin containing functional groups reactive with the carbamate groups on the carbamate-functional resin. In one embodiment, the coating compositions are used as a clearcoat to be applied over a basecoat to form a composite coating. The compositions exhibit a combination of desirable properties, such as scratch and mar resistance, resistance to environmental etch, good intercoat adhesion, and high solids.
Abstract:
Disclosed is a method for making nongelled functional addition polymers from linear unsaturated anhydrides. The method subjects a linear unsaturated anhydride compound, an active hydrogen compound, and an epoxide compound to reaction conditions such that each of the following three reactions occur: (i) polymerization of polymerizable C=C bonds, (ii) ring opening of an anhydride functional group of the linear unsaturated anhydride compound by the active hydrogen compound to create an acid functional group, and (iii) reaction of the acid functional group resulting from the anhydride ring opening with the epoxide compound. At the time of reaction (iii), the acid functional group resulting from the anhydride ring opening may be selected from an ethylenically unsaturated monomer, a polymer, or both. In one embodiment, the method does not include the physical removal of any acid functional monomers or polymerization products. Also disclosed are a curable coating composition and a coated substrate.
Abstract:
The invention provides carbamate-functional resins and coating compositions incorporating said resins that have improved adhesion with respect to subsequently applied films or coatings. More particularly, the invention relates to carbamate-functional addition polymers having at least 250 grams of polymer per carbamate group which are made with less than 35 percent by weight of nonfunctional monomers, preferably with less than 20 percent by weight and most preferably from 0 to less than 10 percent by weight, based on the total weight of the polymer. The invention further provides a method of making a carbamate-functional polymer and carbamate-functional polymers made by the claimed method. Finally, the invention provides a method for improving the adhesion of a first coating composition to a subsequently applied material as well as a method of making a composite comprising a coated substrate, an adhesive composition, and a glass having at least one surface.
Abstract:
A method for reducing the molecular weight of aminoplast compounds, the aminoplast compounds obtained thereby, and coating compositions containing said aminoplast compounds are provided. The reduced molecular weight aminoplasts are obtained by reacting (a) an aminoplast compound, having a total number (y) of reactive substituents on the amino nitrogens of the aminoplast, where y= (E x M) and E = equivalents per mole of aminoplast and M= total number of moles of aminoplast, wherein the reactive substituents are selected from the group consisting of -NH, alkylol, alkoxy, alkoxyalkyl, and mixtures thereof and (b) at least one carbamate compound selected from the group consisting of unsubstituted and substituted primary carbamate compounds, unsubstituted and substituted secondary carbamate compounds and mixtures thereof, in the presence of primary or secondary alcohols, at temperatures under 150 DEG C, and at pressures ranging between atmospheric pressure and 20 atm pressure, to form a functionalized aminoplast compound, wherein at least one and up to (y-1) of the amino substituents on the aminoplast are substituted with the carbamate functionality.
Abstract:
Composición de revestimiento endurecible que contiene (A) un componente filmógeno que incluye (a) uno o más componentes que contienen hidrógeno activo y (b) uno o más endurecedores que comprenden como mínimo una resina aminoplástica (bi) con 0, 5 a 3, 5 mol de NH por mol de resina aminoplástica (bi), (B) un catalizador ácido bloqueado con un agente de bloqueo que no es una amina terciaria, y (C) una amina terciaria volátil presente en una cantidad entre el 10 y el 150% en peso, con respecto al agente de bloqueo.
Abstract:
The present invention provides a coating composition containing 1) a carbama te- functional resin having in its structure a hyperbranched or star polyol core , a first chain extension based on a polycarboxylic acid or anhydride, a secon d chain extension based on an epoxy containing compound, and having carbamate functional groups on the core, the second chain extension, or both; and 2) a second resin containing functional groups reactive with the carbamate groups on the carbamate-functional resin. In one embodiment, the coating compositio ns are used as a clearcoat to be applied over a basecoat to form a composite coating. The compositions exhibit a combination of desirable properties, suc h as scratch and mar resistance, resistance to environmental etch, good intercoat adhesion, and high solids.
Abstract:
Composición de revestimiento que comprende a) una resina carbamato funcional que incluye un núcleo poliol hiperramificado o en estrella; una primera prolongación de cadena basada en un ácido o anhídrido policarboxílico; una segunda prolongación de cadena basada en un compuesto que contiene epóxido; y grupos funcionales carbamato en el núcleo, en la segunda prolongación de cadena o en ambos; y b) una resina reticulante que comprende múltiples grupos funcionales reactivos con los grupos carbamato de la resina carbamato funcional.
Abstract:
Método para proporcionar un revestimiento compuesto de aspecto mejorado, que comprende: la aplicación de un primer revestimiento a un sustrato; la aplicación de un segundo revestimiento al primero para proporcionar un revestimiento compuesto, comprendiendo el segundo revestimiento, (A) un componente filmógeno que comprende (a) un primer componente consistente en un compuesto que porta al menos un grupo funcional carbamato o urea, o un grupo convertible en un grupo carbamato o urea, y (b) un segundo componente que comprende un compuesto reactivo frente a dichos grupos carbamato o urea del componente (a), y (B) un catalizador reductor de arrugas que comprende Zn(NO3)2, y la exposición del revestimiento compuesto a una temperatura situada entre aproximadamente 200ºF/93ºC y 395ºF/201ºC durante un tiempo suficiente para proporcionar un revestimiento compuesto endurecido.