摘要:
Disclosed herein are multilayer structures and articles comprising the multilayer structures. The multilayer structure comprising a hydrocarbon fuel permeation barrier layer comprising furan-based polyester; a structural layer; and a tie layer interposed between the barrier layer and the structural layer, wherein the multilayer structure provides permeation barrier to the hydrocarbon fuel.
摘要:
Methods of coating surfaces of a (e.g. drinking water) pipeline and pigments dispersions are described. The coating composition of the method and pigment dispersion comprise one or more alkyl phenyl ester compounds wherein the alkyl group comprises at least 8 carbon atoms.
摘要:
Methods of forming a coating on (e.g. internal) surfaces of a (e.g. drinking water) pipeline with two-part coating compositions comprising a first part comprising at least one polyisocyanate and a second part comprising at least one aspartic acid ester. Also described is a reactive two-part coating composition comprises a first part comprising at least one polyisocyanate; and a second part comprising at least one aspartic acid ester and at least one aromatic amine that is a solid at 25°C.
摘要:
The present invention is directed to a rigid polyurethane foam obtained by reacting a) compounds having groups which are reactive toward isocyanates with b) an aromatic isocyanate prepolymer having a NCO content of 25% to 33% by weight, in the presence of c) one or more physical blowing agent. The compounds (a) having groups which are reactive toward isocyanates comprise (a1) 45 to 80% by weight, based on the total weight of compounds (a), of an aromatic polyester polyol having a functionality of less than 3 and a hydroxyl number of 250 mg KOH/g or more, (a2) 20 to 55% by weight, based on the total weight of compounds (a), of a polyether polyol having a functionality of 3 or more and a hydroxyl number of 350 mg KOH/gor more, and (a3) 0 to10% by weight, based on the total weight of compounds (a), of a chain extender and/or crosslinker.
摘要:
Various embodiments of radiation curable coating compositions are provided. In one embodiment, a radiation curable coating composition includes a (meth)acrylate functional compound and an adhesion promoting (meth)acrylate compound. The radiation curable coating composition can also include a (meth)acrylate functional compound, a poly(meth)acrylate and a reactive diluent. The (meth)acrylate functional compound can be made from the reaction of a multifunctional isocyanate, a polyol and a hydroxyl functional (meth)acrylate in the presence of a catalyst.
摘要:
A polymer and coating composition containing the polymer are provided that are useful in coating applications such as, for example, food or beverage packaging containers. The polymer preferably includes a backbone having one or more polycyclic groups. In one embodiment, the polymer is a polyester and, more preferably, a polyester-urethane polymer. In one embodiment, the one or more polycyclic groups is a tricyclic or higher group.
摘要:
A self-sealing coating that provides leak mitigation to structures suffering puncture wounds and a self-sealing article are disclosed. The self-sealing coating includes at least one two-part polyurea elastomer applied to a surface of the structure. The self-sealing article includes at least one wall including the at least one two-part polyurea elastomer.
摘要:
The invention relates to protective coating systems derived from a functional polyester resin, a cross-linker and a phenol-formaldehyde resin. Also provided is a method of coating a metal substrate using the protective coating systems to produce a cross-linked protective coating. Further provided is a composite material prepared with the coating system and, in certain embodiments, useful in fabricating metal foodstuffs storage containers. The composite material may be particularly useful in fabricating foodstuffs storage containers and "easy-open" end closures wherein the cross-linked protective coating contacts the foodstuffs.
摘要:
Compositions suitable for use as coatings for gas pipelines are described. The two-part coatings comprise a first part containing a polyamine that is a liquid at 25 °C; a polyol having a hydroxyl functionality of greater than 2; and a diol. The second part comprises a polyisocyanate. During application, the parts are mixed and the isocyanate groups react with both the amine and hydroxyl groups to set or cure the composition. The compositions also include a thixotropic agent to provide shear thinning behavior. Methods of apply these compositions to the interior of pipes, including their in situ application to gas pipelines is also described.
摘要:
There is provided a drinking or eating vessel comprising an inner surface that defines a volume for receiving liquid or solid food and an outer surface that supports a polymeric coating and a decorative layer; wherein the polymeric coating comprises a polymer formed by curing a coating mixture on the outer surface of the drinking or eating vessel, said coating mixture comprising a matting agent; wherein the polymeric coating has an inner surface in contact with the drinking or eating vessel and an outer surface exposed to contact by a user of the vessel; and wherein the decorative layer forms a diffuse layer within the polymeric coating. Also provided are corresponding processes for producing the drinking or eating vessel.