Methods for preparing edge-sealed multi-layer film articles include applying a sealant composition to a multi-layer film article that includes at least one polymeric film layer, and permitting the sealant composition to dry to form an edge-sealed article. The sealant composition includes at least one solvent capable of softening, penetrating or dissolving the polymeric film layer of the multi-layer film article, and at least one polymer dissolved in the solvent. The polymer dissolved in the solvent may be a fluoropolymer, a non-tacky at ambient temperatures(meth)acrylate-based block copolymer, or a combination thereof. Edge-sealed articles prepared by this method can include other polymeric film layers or coated layers such as metallic layers and can be part of larger assemblies.

A multi-layered laminate for producing membranes for electroacoustic transducers, comprises a first layer of a polyether ether ketone film having a heat of crystallisation of at least 15 J/g, a second layer (of a thermoplastic plastic film having a heat of crystallisation of no more than 5 J/g, and an adhesive layer arranged between the first and second layers. Alternatively, the first and second layers are defined by their shrinkage properties after 15 minutes at 200° C.: the first layer has shrinkage of more than 10% in at least one direction, and the second layer has shrinkage of less than 10% in the longitudinal and transverse directions. A laminate constructed in this manner exhibits lower fold formation when processed using multi-cavity thermoforming. The laminates are useful for the production of membranes for electroacoustic transducers.

Provided is an optical film coating composition including: a UV curable acrylate resin; mixed particles including inorganic nanoparticles and carbon black; and a photoinitiator.

The resin composition of the present invention is a resin composition comprising an acrylic-based polymer (A) and a urethane polymer (B), in which the acrylic-based polymer (A) is a polymer of a monomer component comprising an acrylic-based monomer (A1) having at least one functional group (X) selected from the group consisting of a hydroxy group, a carboxy group, a thiol group, an amino group, a group having an ether bond, a group having a urethane bond and a group having an amide bond.

A composite foam article is disclosed herein. The composite foam article comprises a polyurethane foam core presenting a first surface and a second surface facing opposite the first surface. A first skin is disposed on the first surface and a second skin is disposed on the second surface. The polyurethane foam core has a density of 15-80 kg/m.sup.3. The first and second skins comprise a plurality of fibers and a polymeric binder. The composite foam article has a weight per unit area of 500-1000 g/m.sup.2 and a strength of greater than 17 N at a post-compression thickness of greater than 2 mm when tested in according with SAE J949 at 23° C.

Transparent polymeric hardcoats with antimicrobial efficacy are described along with compositions for preparing the hardcoats. The transparent polymeric hardcoats at appropriate thicknesses can provide optical properties of high optical transmission, low haze and high clarity, and are suitable for use in electronic displays designed for commercial applications intended for high consumer use. Touch screens having the transparent polymeric hardcoats are also described.

A coating agent including a block copolymer capable of forming a lamellar microphase separation structure, and a liquid medium. The block copolymer includes a first block (A1) forming a non-adsorptive layer, and a second block (B1) forming a layer that is adhesive or fusible to a heat sealable substrate, the first block (A1) includes a copolymer having nitrile group-containing (meth)acrylic monomer units and alkyl group-containing (meth)acrylic monomer units, and the alkyl group-containing (meth)acrylic monomer units are included in a proportion of 0.1 mol-0.8 mol with respect to 1 mol of the nitrile group-containing (meth)acrylic monomer units.

The present invention provides a laminated film comprising a polyester film having a resin layer on at least one side thereof, wherein said resin layer contains at least metal oxide particles (A) having a number average particle diameter of 3 nm or more and 50 nm or less, and an acrylic resin (B), and a component (C.sub.1) derived from an oxazoline-based compound and/or a component (C.sub.2) derived from a melamine-based compound, and wherein said acrylic resin (B) contains a monomer unit (b.sub.1), a monomer unit (b.sub.2) and a monomer unit (b.sub.3). The present invention provides a laminated film which is excellent in transparency, suppression of interference pattern upon lamination of a high refractive index hard coat layer, adhesive property to a high refractive index hard coat layer, and adhesion under high temperature and high humidity conditions (adhesion under high temperature and high humidity conditions), at a low cost.

Disclosed is a packaging sheet for packaging of cheese, in particular white moulded soft cheese. The packaging sheet comprises: an inner surface and an outer surface of the packaging sheet, said inner surface being configured for facing the cheese in a packaged use position of the packaging sheet; a paper layer with a first surface and a second surface; a coloured layer provided on a first surface of the paper layer, an outer surface of the coloured layer establishing said outer surface of the packaging sheet; and a polymer layer with a water vapour transmission rate of at least 300 g/m.sup.2/24 hours at 38° C. and 90% atmospheric humidity. The polymer layer being coated on the second surface of the paper layer with a first surface of the polymer layer facing the paper layer and a second surface of the polymer layer establishing said inner surface of the packaging sheet.

This disclosure provides a fluorine-containing mixture and a fluorine-containing super-oleophobic microporous membrane using the fluorine-containing mixture as a raw material, as well as preparation methods and applications for the fluorine-containing mixture and the fluorine-containing super-oleophobic microporous membrane. The fluorine-containing mixture of the present disclosure comprises, by weight percentage, the following components: Component A: 50%˜90%; Component B: 3%˜25%; Component C: 0%˜35%; Component D: 0%˜3%; wherein Component A comprises high molecular weight polytetrafluoroethylene homopolymer or copolymer dispersion resin; Component B comprises one or more fluorine-containing alkyl acrylate monomers; Component C comprises one or more fluorine-free acrylates; Component D comprises high temperature free radical initiator. There's no need to add inflammable or explosive lubricating oil, making the process highly safe; and the obtained fluorine-containing super-oleophobic microporous membrane has high waterproof, air-permeable, oil-resistant and washable performance, in line with the needs of a new generation of waterproof and air-permeable protective clothing.