The invention relates to a multilayer composite, containing a first polymeric layer which on a side is coated with a printing ink containing a polyurethane as binder, and a second layer which with a polyurethane dispersion as adhesive is joined at least partly with the side of the first polymeric layer which is coated with the printing ink containing a polyurethane as binder.

A hydrogel structure contains a hydrogel body containing water, a polymer, and a mineral, and a film on the surface of the hydrogel body, wherein the film has a peeling-off strength of 1.0 N/mm or more.

The present invention relates to a two-component putty comprising (1) a base component and (2) a curing component, wherein the base component comprises: a polycarbonate diol having a hydroxyl number in the range of from 50 to 500 mg KOH/g; a further resin component having a hydroxyl number of at least 300 mg KOH/g; and an inorganic filler, wherein the curing component comprises a polyisocyanate, and wherein the amount of the inorganic filler is in the range of from 35 wt % to 60 wt %, based on the total weight of the putty, the putty contains less than 5 wt % of organic solvent, and the viscosity of the putty is in the range of from 30,000 mPa.Math.s to 250,000 mPa.Math.s. The present invention also relates to a method for coating a substrate by applying such putty and allowing the applied putty to cure. The invention further relates to a coated substrate obtainable by such method and the use of such two-component putty for improving erosion resistance of a substrate.

The present specification relates to an optical film including a transparent film, and a coating layer on at least one surface of the transparent film, wherein the coating layer includes a polyester-based resin and a polyurethane-based resin, and is formed using a composition having a minimum film-forming temperature difference of 40 C. to 110 C. between the polyester-based resin and the polyurethane-based resin, and a polarizing plate including the same.

A laminate film which exhibits excellent gas barrier properties and lamination strength even after a severe retort treatment or which is small deterioration of gas barrier properties and hardly cause interlayer peeling can be provided. The laminate film comprises a coating layer, a metal oxide layer and a protective layer, with another intervening layer or without any intervening layer, laminated in this order on at least one surface of a polyester substrate film, wherein the coating layer comprises an oxazoline group-containing resin (A) and a polyurethane resin (B), wherein the metal oxide layer comprises a composite oxide composed of silicon oxide and aluminum oxide, and wherein the protective layer comprises a polyurethane resin (D), the polyurethane resin (D) contains a metaxylylene group in an amount of 20 to 33% by mass and a silanol group in an amount of 700 to 1700 mg per kg of a resin constituting the polyurethane resin (D), as a Si element amount contained in the silanol group.

The present inventive concept relates to a transparent polycarbonate-based optical laminate, which satisfies both high surface hardness and impact resistance, making it applicable to curved designs, a manufacturing method thereof, and a cover window using the same. More specifically, the present inventive concept provides an optical laminate: including a polycarbonate/primer layer/hard coating layer, wherein (A) the hard coating layer is a cured product of a siloxane resin prepared by hydrolytic condensation of an alkoxy silane of the following Formula 1 containing a cycloaliphatic epoxy group; and (B) the primer layer is a cured product of a mixture of at least one curing resin selected from an acrylic-based resin, a polyurethane-based resin, and an epoxy-based resin, and the siloxane resin.

R.sup.1Si(OR.sup.2).sub.3[Formula 1] where R.sup.1 is a linear or branched C.sub.1-C.sub.6 alkyl group containing a cycloaliphatic epoxy group, the cycloaliphatic epoxy group being a C.sub.3-C.sub.6 cycloalkyl group that forms a fused bicycle with an epoxy group, and R.sup.2 is a linear or branched C.sub.1-C.sub.6 alkyl group.

The invention relates to a multilayer composite, containing a first polymeric layer which on a side is coated with a printing ink containing a polyurethane as binder, and a second layer which with a polyurethane dispersion as adhesive is joined at least partly with the side of the first polymeric layer which is coated with the printing ink containing a polyurethane as binder.