Abstract: The present invention relates to an optical film comprising a polyimide-based resin having a constitutional unit derived from an aliphatic diamine, wherein the optical film has a glass transition temperature of 165° C. or higher and an optical transmittance at 350 nm of 10% or less.

Abstract: The present invention relates to an optical film having a glass transition temperature of 165° C. or higher, an optical transmittance at 350 nm of 10% or less, an in-plane retardation of 30 nm or less, and a retardation in a thickness direction of 100 nm or less.

Abstract: The invention relates to an electrically conductive system comprising a substrate and at least one conductive track adhered onto the substrate, wherein the substrate is composed of at least a polyamide and the conductive track is made out of an electrically conductive material and wherein the conductive track is adhered to the substrate by an jet printing technique followed by sintering. The invention further relates to a process for the production of an electrically conductive system and to its uses.

Abstract: Insulated wires for use in electronic equipment have an electrically conductive core and an insulating layer and/or a insulating jacket formed of a flame retardant thermoplastic composition surrounding the electrically conductive core. The flame retardant thermoplastic composition includes (A) a thermoplastic copolyester elastomer and/or a copolyamide elastomer as a thermoplastic polymer component, (B) a metal salt of a phosphinic acid and/or a diphosphinic acid and/or a polymer thereof, (C) a nitrogen containing flame retardant synergist and/or a phosphor/nitrogen containing flame retardant as a flame retardant component, and (D) an inorganic compound chosen from basic and amphoteric oxides, hydroxides, carbonates, silicates, borates, stannates, mixed oxide-hydroxides, oxide-hydroxide-carbonates, hydroxide-silicates and hydroxide-borates, and mixtures thereof.

Abstract: The invention relates to an information-carrying molded part containing one or more plastic layers, at least one of which bears an informative representation. A ‘molded part’ is understood to be in particular a card such as ‘smart cards’, key cards, identification cards, telephone cards, credit cards or bank cards. According to the invention at least one of the plastic layers herein is made from a block-copolyester consisting of soft blocks of a flexible polymer and hard polyester blocks of repeating units of at least one alkylene glycol and at least one aromatic dicarboxylic acid or an ester thereof. The block-copolyether layer can very well be provided with an informative representation with the aid of laser writing and for example sublimation printing. The information-carrying molded part according to the invention also has a good stiffness combined with a good flexibility and a good resistance to breaking and tearing, good adhesion to for example polycarbonate.