Abstract:
The invention relates to a method for producing a shaped mirror (F) that has a surface (2) curved in a predetermined manner. The method comprises the following steps: formation of a shaped body (1) wherein at least part of the surface of said shaped body reproduces the surface that has been curved in a predetermined manner; application of a glass layer (3) to the surface of the shaped body that has been curved in a predetermined manner, said glass layer covering the entire surface without any gaps and having a surface lying opposite the contact surface of the shaped body, upon which a reflective coating (4) is arranged; and the application of a backing layer (5) to the reflective coating, wherein said backing layer is connected to the reflective coating and maintains the predetermined curve when the shaped mirror is separated from the shaped body. The method also relates to the use of a reflective metal layer to produce the reflection instead of a glass layer. In addition, the invention relates to a shaped mirror produced by means of said method, and to a parabolic trough that uses said shaped mirror, for a solar-thermal power plant.
Abstract:
An article, method of using, and method of making a multilayer optical film comprising an optical stack, wherein the optical stack comprises a plurality of first optical layers, each first optical layer comprising a melt-processible copolymer comprising interpolymerized monomers of tetrafluoroethylene, with the proviso that the melt-processible copolymer is not fluorinated ethylene-propylene copolymer or a perfluoroalkoxy resin; and a second polymer layer disposed in a repeating sequence with the plurality of first optical layers, each second optical layer comprising a non-fluorinated polymeric material selected from the group consisting of poly(methyl methacrylate); copolymers of poly(methyl methacrylate); polypropylene; copolymers of polypropylene; polystyrenes; copolymers of styrene; polyvinylidene chloride; polycarbonates; thermoplastic polyurethanes; copolymers of ethylene; cyclic olefin copolymers; and combinations thereof is described.
Abstract:
This disclosure relates to an architectural article comprising a multilayer optical film comprising optically thin polymeric layers, wherein at least one of the optically thin polymeric layers comprises a fluoropolymer, and wherein the multilayer optical film is UV-stable.
Abstract:
A method for producing a polymer mirror by continuously manufacturing a polymeric substrate, applying a reflective layer or layers which may be a polymer whose surface has been metallized so as to make it reflective or a multilayer film wherein the combined refractive indices of the layers give the quality of a mirror surface. An optional coating may be applied to a surface of the reflective layer to promote adhesion to the underlying substrate. A composite is the formed by heat lamination using a calendar roll assembly to fuse the layers into a rigid final article having a reflective surface having the character of a silver mirror, a highly reflective mirror, or a colored mirror.
Abstract:
A multilayered polymer film includes a first set of optical layers and a second set of optical layers. The first set of optical layers is made from a polyester which is often birefringent. The polyesters of the first set of optical layers typically have a composition in which 70-100 mol % of the carboxylate subunits are first carboxylate subunits and 0-30 mol % are comonomer carboxylate subunits and 70 to 100 mol % of the glycol subunits are first glycol subunits and 0 to 30 mol % of the glycol subunits are comonomer glycol subunits, where at least 0.5 mol % of the combined carboxylate and glycol subunits are comonomer carboxylate or comonomer glycol subunits. The multilayered polymer film may be used to form, for example, a reflective polarizer or a mirror.