Patent classifications
C08G18/6225
2-component primer composition and method for producing coatings using the primer composition
The present invention relates to an aqueous two-component primer composition comprising (1) a paint base component comprising (A) at least one polyurethane resin having an OH number of 5 to 60 mg KOH/g, (B) zinc phosphate, (C) at least one pigment, and (2) a curing component comprising (D1) at least one polyisocyanate which is an isocyanurate based on hexamethylene diisocyanate, (D2) at least one polyisocyanate which is a polyether-modified isocyanurate based on isophorone diisocyanate, where the stoichiometric ratio of isocyanate groups in the curing component to the complementary hydroxyl groups in the paint base component is greater than 2. The present invention further relates to a method for producing a coating on a metallic substrate, by applying the primer composition of the invention directly to a substrate. Moreover, the present invention relates to a substrate coated by the stated method.
Coating compositions having covalently bound ultraviolet absorbers
A coating composition includes a coating resin, a triazine ultraviolet light absorber of Formula (I), and a hindered light amine stabilizer, where Formula (I) has the structure: ##STR00001##
Clear coat component
A curable clear coat component for use in a two-component clear coat coating composition system is provided. The curable clear coat component comprises A) a polyaspartic acid ester or a hydroxyl functional binder or a combination of both, and B) an antioxidant component comprising B1) a sterically hindered phenol antioxidant, and B2) an organophosphite antioxidant.
Water-based adhesive compositions
Water-based adhesive composition are disclosed, the compositions comprising an acrylic dispersion, an epoxy-terminated polyester incorporated into the acrylic dispersion, and a water-dispersible isocyanate. Methods for laminating a first substrate to a second substrate are also disclosed, the methods comprising (a) providing an acrylic dispersion, (b) providing an epoxy-terminated polyester, (c) mixing the acrylic dispersion and the epoxy-terminated polyester, (d) mixing the mixture of (c) with a water-dispersible isocyanate to form an adhesive composition, (e) coating the adhesive composition of (d) on a surface of the first substrate, (f) drying the adhesive compositions on the first substrate to remove water, and (g) bringing the adhesive composition on the surface of the first substrate into contact with a surface of a second substrate, thereby laminating the first substrate to the second substrate. Laminates prepared comprising the water-based adhesives and according to the disclosed methods are also disclosed.
HEAT- AND LIGHT-CURABLE COATING COMPOSITION AND COATING FILM FORMATION METHOD, WATER PRESSURE TRANSFER METHOD
The present invention provides: a heat- and light-curable coating composition which is suitable as a top clear coat for plastic molded articles for automobiles or household electric appliances or for plastic molded articles having a water pressure transfer print layer; a coating film formation method using the coating composition; and a water pressure transfer method using the coating composition. The heat- and light-curable coating composition comprises: an acrylic polyol resin (a) having a glass transition temperature (Tg) of 50° C. to 100° C., a mass average molecular weight of 1,000 to 20,000, and a hydroxyl value of 20 to 200 mgKOH/g; a multifunctional photocurable compound (b); a polymerization initiator (c); and a polyisocyanate compound (d), wherein a ratio of the acrylic polyol resin to the multifunctional photocurable compound is 5/95 to 90/10, and an equivalence ratio of hydroxyl groups contained in the acrylic polyol resin to isocyanate groups contained in the polyisocyanate compound, (OH/NCO), is 0.5 to 1.5.
Polyisocyanate mixture, coating composition, and coating film
Provided is a polyisocyanate mixture including: a triisocyanate compound (A) represented by Formula (I); and polyisocyanate (B) obtained from at least one diisocyanate selected from the group consisting of aliphatic diisocyanate, alicyclic diisocyanate, and aromatic diisocyanate. ##STR00001## (In Formula (1), a plurality of Y.sup.1's each independently represent a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms which may have an ester structure and/or an ether structure. A plurality of Y.sup.1's may be the same as or different from one another. R.sup.1 represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 12 carbon atoms.)
Polyurethane Surfacing Film
Surfacing films and related processes are provided. These films include a first clear coat layer comprising a first crosslinked polyurethane that is the reaction product of an isocyanate; a polyol selected from the group consisting of: a caprolactone polyol, polycarbonate polyol, a polyester polyol, acrylic polyol, polyether polyol, polyolefin polyol, and mixtures thereof; and a hydroxy-functional silicone poly(meth)acrylate; a second clear coat layer comprising a crosslinked polymer that is essentially free of hydroxy-functional silicone poly(meth)acrylate; a bulk layer comprising a thermoplastic polyurethane; and an adhesive layer. The provided films overcome the problem of migration of solvents and other impurities into the polyurethane bulk layer because the clear coat layer is cured, and solvents removed, prior to the coating of the polyurethane bulk layer. Manufacturing of these films can provide substantially faster line speeds and reduced waste.
SURFACE PROTECTION FILM AND METHOD FOR MANUFACTURING ORGANIC LIGHT EMITTING ELECTRONIC DEVICE
The present disclosure relates to a surface protective film and a method for manufacturing an organic light emitting electronic device.
TWO-COMPONENT (2K) CLEARCOAT AND METHOD TO COAT A SUBSTRATE WITH THE TWO-COMPONENT (2K) CLEARCOAT HAVING ENHANCED VISUAL APPEARANCE
Provided herein is a two-component clearcoat composition that contains a first component comprising a hydroxyl-functional resin; and a second component comprising a crosslinking agent which is a first isocyanate resin which is unblocked; wherein at least one of the first component and the second component further comprises a blocked isocyanate resin which is a reacted form of a second isocyanate resin and a blocking agent; and wherein the first isocyanate resin and the second isocyanate resin are capable of reacting with the hydroxyl-functional resin to form a crosslinked coating. Further provided herein is a substrate coated with the clearcoat composition that exhibits improved visual appearance to the coated substrate, such as reduced orange peel and an increased balance value.
PRESSURE-SENSITIVE ADHESIVE TAPE AND METHOD FOR MOLDING PLASTIC LENS
A pressure-sensitive adhesive tape for molding a plastic lens having a substrate and a pressure-sensitive adhesive layer formed on a surface of the substrate. The pressure-sensitive adhesive layer includes an acrylic copolymer having a functional group and a crosslinking agent capable of reacting with the functional group; the acrylic copolymer has a weight-average molecular weight (M.sub.w) of 1,100,000 or more and a molecular-weight polydispersity (M.sub.w/M.sub.n) of 10.0 or less; the pressure-sensitive adhesive layer has an elution percentage of 48.0% or less when immersed for two hours in toluene the temperature of which being adjusted to 80° C.; the pressure-sensitive adhesive tape exhibits a shift length of 0.15 mm or more and 0.50 mm or less after 800 minutes in a creep test; and the plastic lens has a refractive index of 1.59 or more.