Abstract:
Surface coatings including azlactone-functional hydrogels and articles with the coatings disposed thereon are disclosed. Methods of making the coating and controlling the gellation time of the hydrogels are also disclosed.
Abstract:
The invention provides stain-proofing agents capable of forming coating films excellent in rain streak stain resistance and durability thereof, coating compositions comprising the stain-proofing agents, and articles coated therewith. A stain-proofing agent comprising a polymer which contains at least one repeating unit having at least two hydroxyl groups, wherein the content (by mass) of the repeating unit is more than 10%. A stain-proofing agent comprising a polymer which contains at least two repeating units having hydroxymethyl groups, wherein the content (by mass) of the repeating unit is more than 30%. A coating composition comprising such a stain-proofing agent and a coating resin such as a fluororesin.
Abstract:
Coating compositions formed from at least one hydroxyl functional non-vinyl material comprising at least one alcoholic hydroxyl group blocked with a hydrolyzable silyl group, and at least one curing agent are provided by the present invention. Another embodiment of the present invention is directed to a coating composition formed from components comprising at least one carbamate functional material comprising at least one carbamate group blocked with a hydrolyzable silyl group, and at least one curing agent. Another embodiment of the present invention is directed to a coating composition formed from components comprising at least one carboxyl functional material comprising at least one carboxyl group blocked with a hydrolyzable silyl group, and at least one curing agent. Another embodiment of the present invention is directed to a coating composition formed from components comprising at least one amide functional material comprising at least one amide blocked with a hydrolyzable silyl group, and at least one curing agent. Other embodiments of the present invention are directed to substrates coated with the aforementioned cured compositions. Also provided are multi-component composite coatings which include a cured basecoat deposited from a pigmented coating composition and a cured topcoat deposited from a topcoating composition. The multi-component composite coatings of the invention provide highly scratch resistant color-plus-clearcoatings. Further embodiments of the present invention are directed to methods for improving scratch resistance of a substrate.
Abstract:
A curable coating composition comprising functionalized oligomer components i and ii which cross-link at cure to form a three-dimensional network having chains of substantially uniform, controllable molecular weight between cross-links; oligomers i and ii having weight average molecular weights not exceeding about 3,000, a polydispersity for (i) not exceeding about 1.5, and functionalities that react with one another to cross-link i and ii at cure to yield coatings with an excellent balance of hardness and mar resistance.
Abstract:
This invention provides a high-solids coating composition which comprises (A) a compound which has at least one radically polymerizable unsaturated group per molecule, (B) a hydroxyl group-containing ester compound which is obtained by ester-forming addition reaction between 2,2-dimethylolalkanoic acid having 6 to 8 carbon atoms and alkanoic acid monoglycidylester, and which has an acid value of 20 mgKOH/g or less, (C) a curing agent which is reactive with the above-mentioned hydroxyl group-containing ester compound (B), and (D) a photopolymerization initiator, and also provides a process to form a coating film by spray coating of said coating composition, which process is characterized by irradiating flying paint particles which have been sprayed and/or paint which has been applied onto a substrate with active energy ray so as to make the coating composition partially react, and by subsequently heating the coating composition.
Abstract:
A base-neutralized, water-diluted coating comprises (A) a polyhydroxyl-functional resin of an acrylate resin or an oil-free polyester containing urethane groups, (B) an amino resin partially etherified with an alcohol, (C) a basic neutralizing agent, (D) water, and (E) a water-insoluble crosslinking catalyst of a strong organic or inorganic acid such as p-toluenesulfonic acid blocked with a monoepoxide, diepoxide or lactone.
Abstract:
An aminoplast-curable film-forming composition is disclosed. The film-forming composition is a crosslinkable composition comprising (1) a material containing a plurality of carbamate and/or urea functional groups and (2) an aminoplast crosslinking agent. The composition provides a coating with improved acid etch resistance, making the coating particularly useful as an automotive clear coat.
Abstract:
A water-dilutable coating after base neutralization comprises a polyhydroxyl-functional resin including a condensation resin such as a polyester or alkyd resin, and/or a polyhydroxyl-functional addition resin such as an acrylate resin or the reaction product of a carboxyl-functional acrylate resin and a hydroxyl-functional acrylate resin, and/or an emulsion copolymer, an at least partially monoalcohol-etherified amino resin, and a strong organic or inorganic acid crosslinking catalyst non-ionically blocked with a monoepoxide, a diepoxide or a lactone.
Abstract:
The present invention provides a curable coating composition that includes at least three components. The coating composition includes a component (a) that includes one or both of a compound (a)(1) having at least one carbamate group or terminal urea group according to the invention and having at least two linking groups that are urethane or urea or a compound (a)(2) having at least two groups selected from carbamate groups, terminal urea groups, or combinations of the two and at least four urethane or urea linking groups. The second component (b) of the coating composition includes an acrylic polymer comprising active hydrogen-containing functional groups reactive with the third component(c). Component (c) of the coating composition is a curing agent that is reactive with the first two components. Preparation of coated articles using the compositions of the invention is also disclosed.
Abstract:
The present invention is directed to a polymeric vehicle, a formulated coating composition and a coating binder made from the polymeric vehicle and a method for making the polymeric vehicle where the polymeric vehicle includes a polyol, an isocyanate compound and a phenolic ester alcohol having at least one aliphatic hydroxyl group and at least one phenolic hydroxyl group.