摘要:
A thermoplastic compositions containing polycarbonate and a UV absorbing compound conforming to Formula 1 wherein R denotes a branched or unbranched alkyl group with 4 to 10 carbon atoms is disclosed. The composition is suitable for making molded or extruded articles, including multilayered articles exhibiting improved weatherability.
摘要:
A solid sheet comprising 80 to 99.99 wt. % of a transparent polycarbonate having weight average molecular weight of 15,000 to 21,000 g/mol, specifically excluding 18,000 g/mol, and 0.01 to 20 wt. % of transparent polymeric particles having an optical density which differs from that of the polycarbonate is disclosed. The sheet is particularly suitable as a diffuser in flat screens.
摘要:
A light-emitting, transparent, flexible film system based on polymers is produced by including a thermoplastic polyurethane film having an electroluminescent pigment incorporated therein in the flexible film system. These systems are useful as a luminescent system.
摘要:
The present invention provides a process for surface finishing sheets made from thermoplastics by applying a partially fused layer of thermoplastic polyurethane.
摘要:
A multilayer sheet suitable for use as a diffuser in flat screens is disclosed. The sheet includes at least one base layer (B) and at least one outer layer (A) wherein (B) comprise a transparent thermoplastics material and transparent polymeric particles, with the proviso that the refractive index of the material and particles differ one from the other, and wherein said (A) comprise a transparent polycarbonate and a bismalonate UV absorber.
摘要:
A thermoplastic molding composition suitable for the preparation of sheets, in particular for making diffuser sheets in flat screens is disclosed. The composition that contains 80 to 99.9% of a transparent thermoplastic material and 0.01 to 20% of scattering pigments in the form of polymeric particles having average particle diameter of 1 to 100 μm. is distinguished by a particularly low fines content of the scattering pigments.
摘要:
A solid sheet comprising transparent polycarbonate matrix, particles of a transparent polymer and an antistatic agent is disclosed. Characterized in that the refractive index of said matrix differs from that of said polymer, the sheet is suitable in making diffuser plate in flat screens.
摘要:
A multi-layer article is disclosed. The article contains a base layer that contains at least one thermoplastic resin and a second layer containing a thermoplastic (co)polyformal superimposed over the base layer. The (co)polyformal conforms to formulae (1a) or (1b), in which O-D-O and O-E-O independently denote a diphenolate group, -D- and -E- independently denote an aromatic group having 6 to 40 C atoms, k is a whole number from 1 to 1500 and m is z/o and n is (o-z)/o wherein z is 0 to o. The multi-layer article that may be prepared by co-extrusion exhibits improved properties.
摘要:
A light-emitting, transparent, flexible film system based on polymers is produced by including a thermoplastic polyurethane film having an electroluminescent pigment incorporated therein in the flexible film system. These systems are useful as a luminescent system.
摘要:
A transparent sheet having improved optical properties is disclosed. The sheet that features a deviation angle αε (min) according to DIN 52305-A-AS of ≦2.0 and a refracting power Dε (min) according to DIN 52305-A-AZ of ≦0.05, is prepared by extruding a molding composition comprising linear (co)polycarbonate having weight average molecular weight of 25,000 to 31,000.