This invention relates to a biodegradable film which is particularly suitable for the manufacture of packaging and is also characterised by high level mechanical properties.

The embodiments relate to a polyamide-based composite film that has excellent curl characteristics, mechanical properties, and optical properties, as well as, in particular, is effective in preventing reflection in the visible light region, remarkably reduces the rainbow phenomenon, and achieves a texture similar to that of glass, and a display device comprising the same. There are provided a polyamide-based composite film, which comprises a base film comprising a polyamide-based polymer; and a functional layer disposed on the base film, wherein the in-plane retardation (Re) measured with light having a wavelength of 550 nm is 100 nm to 220 nm, and a display device comprising the same.

An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix of barium-magnesium alumino-silicate or SiO.sub.2, a dispersion of silicon oxycarbide particles in the matrix, and a dispersion of particles, of the other of barium-magnesium alumino-silicate or SiO.sub.2, in the matrix.

A method of making a flexible pipe layer, which method comprises: commingling polymer filaments and carbon fibre filaments to form an intimate mixture, forming yarns of the commingled filaments, forming the yarns into a tape, and applying the tape to a pipe body to form a flexible pipe layer.

A method of manufacturing a metal-clad laminate and uses of the same are provided. The method comprises the following steps: (a) impregnating a reinforcement material with a first fluoropolymer solution, and drying the impregnated reinforcement material under a first temperature to obtain a first prepreg; (b) impregnating the first prepreg with a second fluoropolymer solution, and drying the impregnated first prepreg under a second temperature to obtain a second prepreg; and (c) laminating the second prepreg and a metal-clad to obtain a metal-clad laminate, wherein the first fluoropolymer solution has a first fluoropolymer, the second fluoropolymer solution has a second fluoropolymer, and the first fluoropolymer and the second fluoropolymer are different.

A laser-welded body includes at least three of resin members, which contain a thermoplastic resin including: a first resin member which is a laser-irradiated subject, has an absorbance a.sub.1 of 0.01 to 0.12; a second resin member which has an absorbance a.sub.2 of 0.1 to 0.9 and includes a butted part where ends of one or more resin members are brought into contact with each other; and a third resin member which has an absorbance a.sub.3 of 0.2 to 3.8, and the absorbances a.sub.2, a.sub.3 exhibited by the second resin member and the third resin member are attributed to the inclusion of nigrosine as a laser beam absorbent therein, and the resin members are overlapped in the above mentioned to form contacted parts at these interfaces, at least a part of the butted part and/or the contacted parts are laser-welded.

A sealing device includes a functional layer having a first major surface and a second major surface and a barrier layer directly or indirectly connected to the second major surface of the functional layer, wherein the functional layer has a surface roughness having a waviness factor W.sub.f. Also disclosed is a method for producing a sealing device and the use of a sealing device for waterproofing of a substrate.

Multilayer oriented shrink films include a skin layer and a base layer; the skin layer being on one side of the base layer, characterized in that the skin layer comprises at least one amorphous styrene-butadiene block copolymer and the base layer has a thickness greater than said skin layer and includes a polypropylene terpolymer, a polybutene-1 copolymer, a polypropylene elastomeric copolymer and at least one copolymer from the group consisting of styreneethylene/butene-styrene triblock copolymers, styrene-ethylene/propylene-styrene triblock copolymers, styrene-ethylene/butene diblock copolymers, styrene-ethylene-propylene diblock copolymers, and combinations of two or more of said triblock and diblock copolymers.

There is provided laminated glass which is high in heat shielding properties. The laminated glass according to the present invention includes a first laminated glass member, a second laminated glass member and an interlayer film arranged between the first and second laminated glass members, the interlayer film includes an infrared ray reflection layer which reflects infrared rays, a first resin layer which is arranged on a first surface side of the infrared ray reflection layer and contains a thermoplastic resin and a second resin layer which is arranged on a second surface side of the infrared ray reflection layer and contains a thermoplastic resin, and the infrared ray transmittance in the wavelength of 780 to 2100 nm of the whole layer composed of the first laminated glass member and the first resin layer is higher by 15% or more than the infrared ray transmittance in the wavelength of 780 to 2100 nm of the whole layer composed of the second laminated glass member and the second resin layer.

A film that is excellent in easy cuttability and linear cuttability and suppressed in breakability in processing, and a roll and a pressure-sensitive adhesive tape that includes the film. The film has the tensile strength in one direction is 1.1 to 2.5 kN/m and the tensile strength in a direction orthogonal to the one direction is 3.0 to 10 kN/m, or the tensile strain at tensile strength in one direction is 50 to 150% and the tensile strain at tensile strength in a direction orthogonal to the one direction is 8 to 20%.