The present invention relates to a process for enzymatic depolymerization of polyethylene terephthalate (PET), in particular contained in a plastic material. The process according to the invention can in particular be implemented on an industrial or semi-industrial scale.

A flame retardant film comprising a polyester containing film comprising on a side thereof, a flame retardant layer. The flame retardant layer comprises a colloidal metal oxide in an amount of 6 g/m.sup.2 of more, an inorganic binder in an amount of 2 g/m.sup.2 or more, a first flame retardant being a phosphorous containing compound in an amount of 10 g/m.sup.2 or more and a second flame retardant being a mineral compound selected from the group of aluminum hydroxide, aluminum trihydrate, magnesium hydroxide, magnesium calcium carbonate, hydrated magnesium carbonate, aluminum oxide hydroxide, boron compounds, antimony trioxide and combinations thereof, the amount of the second flame retardant is 6 g/m.sup.2 or more.

The objective of the present invention is to provide a mold-release film that docs not contaminate the mold or the formed body. This invention provides a mold-release film comprising a base material layer formed from a thermoplastic resin, and a surface layer formed from a resin composition layered on at least one surface of the base material layer. The mold-release film has a trouser tear strength, conforming to JIS K 7128-1, of 5 N/mm or stronger. The resin composition has a peel strength of 15 mN/30 mm or weaker, as measured at 175° C. in accordance with JIS Z0237. The resin composition has an elongation at break of 70% or greater, as measured at 175° C. in accordance with JIS K 7127.

The invention concerns a film based on a binary polymer composition having at least a first polymer and a second polymer. The film is oriented by extruding and stretching the film in at least the machine direction. The glass-transition temperature (Tg) of the first polymer is greater than the orientation temperature and the glass-transition temperature (Tg) of the second polymer is lower than the orientation temperature. Furthermore, a method and use related thereto are described.

Provided is a composition capable of forming a cured product excelling in adhesion to a substrate, hardness, scratch resistance, and chemical resistance. The composition of the present disclosure contains a polyol compound (A) and an isocyanate compound (B) The polyol compound (A) includes a compound (a1) represented by Formula (1) below, where R.sup.1 to R.sup.3 each are a group represented by Formula (1a), the compound (a1) having a number average molecular weight (calibrated with polystyrene standard) of 800 or greater. The isocyanate compound (B) includes a polyisocyanate compound having an isocyanurate skeleton.

The present invention provides a coating liquid comprising a hydroxyl group-containing resin, an inorganic layered compound and a liquid medium, wherein an amount of sodium (Na) in the coating liquid is 2,500 ppm or less on a weight basis relative to a solids content of the coating liquid.

A method for degrading polyethylene terephthalate is provided. The method includes: providing polyethylene terephthalate material, providing a catalyst composite including a porous carrier having a pore size of 45 Å to 250 Å and a metal compound including at least one selected from a group consisting of zinc oxide, zinc hydroxide, zinc carbonate, magnesium oxide, calcium oxide, zirconium oxide, and titanium dioxide, in which the metal oxide is loaded on the porous carrier; and performing a degradation reaction, in which the polyethylene terephthalate material is reacted with the catalyst composite in the presence of an alcohol solvent.

High gas barrier properties can be achieved without requiring strict control for preventing entry of moisture. A coating liquid for producing a gas barrier laminate contains a carboxy group-containing polymer, polyvalent metal-containing particles, a surfactant, and an organic solvent. In the coating liquid, the carboxy group-containing polymer has a number average molecular weight of 100,000 or less.

A foldable display device includes an organic light emitting diode (OLED) display substrate, a stress relief layer parallel with the OLED display substrate, and a first adhesive layer between the OLED display substrate and the stress relief layer. A value of v/E of the OLED display substrate is larger than a value of v/E of the stress relief layer, where v is a Poisson's ratio and E is a Young's modulus.

The present invention refers to a process for the production of an additive composition intended to be mixed into a bituminous conglomerate for road paving. The process includes grinding a mixed waste material containing a mixture of plastic materials, which includes at least one plastic material based on a polyolefin thermoplastic material, washing the ground mixed waste material and separating a portion of low-density material which contains the plastic material based on a polyolefin thermoplastic polymer from the mixed waste material. This portion of low-density material is then ground to a particle size between 10 mm and 20 mm; and then mixed with a material based on polyvinyl butyral. The resultant mixture is further ground to produce an additive composition having a particle size between 4 mm and 6 mm.