Patent application number | Description | Published |
20080248298 | Method For Surface Hardening Substances By Application of Particularly Transparent Polymethacrylate Layers - The present invention describes a process for the surface finishing of materials via application of specific polymethacrylate layers. The polymethacrylate layers are composed of blends of at least two (co)polymers of polymethacrylates, and specific “reactive monomers” are present here in a polymerized mixture which forms the polymethacrylate layer. At the application temperature established, these form a chemical and, where appropriate, also a physical bond to the substrate, and therefore have adhesion-promoting action. | 10-09-2008 |
20080281023 | Pmma Film Featuring Particularly Great Weather Resistance and Great Uv Protection - The invention relates to a novel UV-protective and weather-resistant package for surface protecting films for polyvinyl chloride window profiles made of poly(meth)acrylate. Matrix plastics having great molecular weights are used in order to obtain great weather resistance of the surface protecting films. | 11-13-2008 |
20100167615 | METHOD FOR SURFACE HARDENING SUBSTANCES BY APPLICATION OF PARTICULARLY TRANSPARENT POLYMETHACRYLATE LAYERS - The present invention describes a process for the surface finishing of materials via application of specific polymethacrylate layers. The polymethacrylate layers are composed of blends of at least two (co)polymers of polymethacrylates, and specific “reactive monomers” are present here in a polymerized mixture which forms the polymethacrylate layer. At the application temperature established, these form a chemical and, where appropriate, also a physical bond to the substrate, and therefore have adhesion-promoting action. | 07-01-2010 |
20100189983 | PMMA/PVDF FILM WITH PARTICULARLY HIGH WEATHERING STABILITY AND HIGH UV PROTECTIVE ACTION - The invention describes a transparent foil composed of plastic with improved weathering resistance and increased intrinsic stability where the foil encompasses | 07-29-2010 |
20110015334 | PLASTIC MIXTURES COMPRISING THERMOPLASTIC POLYURETHANE (TPU) AND IMPACT-RESISTANT POLY(METH)ACRYLATE - The present invention relates to a plastics mixture comprising at least one thermoplastic polyurethane A) and at least one impact-modified poly(meth)acrylate B), where the impact-modified poly(meth)acrylate comprises a hard phase whose glass transition temperature is at least 70° C. and a tough phase whose glass transition temperature is at most −10° C., the average particle size of the tough phase is at most 130 nm, and at least a portion of the tough phase has covalent linkage to the hard phase. | 01-20-2011 |
20120107609 | SOLAR MIRROR FILM COMPOSITE HAVING PARTICULARLY HIGH WEATHERING AND UV STABILITY - The invention relates to a film composite and the use thereof as a mirror film in solar reflectors in view of the sustainable guarantee of the required reflection of solar radiation (total solar reflection). In particular, the invention relates to the use of cover films on the basis of polymethyl methacrylate (PMMA) in the film composite, having an especially high UV stability, and a high weathering stability. The invention further relates to a UV and weather protection package for said solar mirror film, as utilized in solar reflectors, for improving the optical life span, weathering stability, and for avoiding delamination. The invention further relates to a surface finish with regard to scratch resistance, anti-soil and chemical stability of the solar mirror film. | 05-03-2012 |
20120182607 | CONCENTRATOR FOR SOLAR ENERGY GENERATION AND PRODUCTION THEREOF FROM POLYMERIC MATERIALS - The present invention relates to a concentrator for concentrating solar radiation and to the production thereof from polymeric materials. The concentrator according to the invention can be used in photovoltaically or in particular in solar thermally usable systems. The concentrator according to the invention allows for the efficient concentration of solar radiation onto objects such as solar cells, independent of the geometry thereof. This relates, for example, to the surface of a solar cell as it is used in concentrating photovoltaics, and also an absorber tube as it is used in concentrating solar heating, for example in the scope of the parabolic trough technology. | 07-19-2012 |
20130008491 | PLASTICS PHOTOVOLTAIC MODULE AND PROCESS FOR ITS PRODUCTION - The invention describes a composite in which solar cells can be encapsulated, being a photovoltaic module, composed of the following elements: an outer layer made of a transparent thermoplastic and/or a barrier foil, and an elastic layer into which the solar cells have been embedded and a barrier foil or a barrier sheet. | 01-10-2013 |
20130136910 | PMMA/PVDF FILM WITH PARTICULARLY HIGH WEATHERING STABILITY AND HIGH UV PROTECTIVE ACTION - A transparent plastic foil with improved weathering resistance and increased intrinsic stability is provided. The foil contains a) poly(meth)acrylate and polyvinylidene fluoride in a ratio of from 1:0.01 to 1:0.5 (w/w); and b) a mixture containing a UV stabilizer and a UV absorber. Use of the foil as a protective coating is also included. | 05-30-2013 |
20130291929 | LONG-LIFE OPTICAL CONCENTRATOR BASED ON A SPECIFIC FRESNEL LENS PRODUCED FROM POLYMERIC MATERIALS FOR SOLAR POWER GENERATION - The present invention relates to a concentrator for focusing solar radiation, having surface structuring in the form of one or more Fresnel lenses on the lower side, and to the production thereof from polymeric materials by means of a specific extrusion process. The inventive concentrator can be employed in plants utilizable for photovoltaic or solar heating purposes, and has the required durability and performance in demanding climatic zones. The inventive concentrator enables particularly economic production and efficient concentration of solar radiation onto objects such as solar cells or absorber units, irrespective of the geometry thereof. The inventive concentrator has high longevity and—combined with this—high optical performance when employed in extreme and demanding climatic zones. This relates, for example, to the area of a high-performance solar cell used in concentrating photovoltaics, and likewise to an absorber tube which finds use in concentrating solar thermal collector, for example in the context of parabolic trough technology. | 11-07-2013 |
20130306127 | NEW SOLAR CONCENTRATION DEVICES - The present invention relates to laminated solar concentration devices and to the production thereof from polymeric materials. The inventive solar concentration devices can be employed in photovoltaic systems or in solar thermal energy systems. The inventive solar concentration devices comprise Fresnel lenses and enable the efficient concentration of solar radiation onto objects such as solar cells or absorber units, irrespective of the geometry thereof. This relates, for example, to the area of a high-performance solar cell as used in concentrated photovoltaics (CPV), and equally to absorbers which are used in concentrated solar thermal energy systems (CSP). The invention in particular relates to the use of an UV- and weathering-stabilizer package for said laminated solar concentration devices, for improving optical lifetime and weathering resistance, and for preventing delamination. The invention further relates to a surface finish relevant to scratch resistance, antisoil properties, anti-reflection properties and chemicals resistance of the solar concentration device. | 11-21-2013 |
20140144427 | POLYMERIC MATERIALS FOR EXTERNAL APPLICATIONS WITH SELF-HEALING SURFACE PROPERTIES AFTER SCRATCHES OR ABRASION DAMAGE - The invention relates to surface enhancements for composite mouldings made from polymeric materials and to the use thereof in solar systems. These solar systems may be solar reflectors for concentrating solar radiation, flexible photovoltaic composite films, or CPV (Concentrated Photovoltaics) lenses for concentrating solar radiation. | 05-29-2014 |