Desmopan - TPU - Covestro Deutschland AG

Kunststoffe international, Flexible Guiding Systems for Cooling Air
...line, including the flexible air guiding system developed at IKV. The flow gap between the system and film bubble can be adjusted with a transparent and flexible membrane, made of a thermoplastic polyurethane (TPU) of type Desmopan 3690AU from Covestro AG, Leverkusen, Germany. The transparency of the membrane is necessary to set the narrowest possible flow gap between the film bubble and the membrane in order, on the one hand, to make the best possible use of the Venturi effect and, on the other...

Kunststoffe international, 2005-11-21, Colours in Light
...ures. To allow the outstanding properties of TPU to be exploited more easily for automotive interior applications, a light-fast TPU product range based on aliphatic isocyanates has been developed and is now commercially available (grade: Desmopan KU2-88…, manufacturer: Bayer AG). The aliphatic TPU is light fast and allows parts to be produced in light colours (Fig.1). The yellowness index of the aromatic TPU clearly shows a virtually linear increase with time. This increase can be delayed by the...

Kunststoffe international, 2005-11-21, Elastomers: Flexible and Customised
...lastogran (Elastollan Light) for shoe soles offering high wearing comfort, this material is going to be used now in industrial sectors such as automotive engineering. New lightfast, transparent grades of the thermoplastic polyurethanes Desmopan and Texin have been developed by Bayer MaterialScience to cover textile yarns of all kinds. The high breaking strength, tear propagation resistance and abrasion resistance obtained with these yarns result in robust, durable fabrics, which also satisfy th...

Kunststoffe international, 2005-11-21, Growth through Specialities: New Markets and Individual Compounds
...petence in the area of thermoplastic elastomers (TPE) by acquiring the production and marketing rights for the TPE-V Alfater XL from the Italian company Alfagomma. With Alfater XL, which will be produced at Albis’ Hamburg site in future, the TPU Desmopan from Bayer MaterialScience and the TPE-S Evoprene from Alpha Gary, Albis now has a product range that covers some 80% of the elastomer spectrum. Because of its competence in the area of hard and soft plastics, the distributor and compounder sees...

Kunststoffe international, 2005-11-21, Low Manufacturing Costs: Plastics Encapsulation for Solar Modules
...reduced by using a thermoplastic, which only needs to be melted to activate the adhesive effect and cause all air bubbles to disappear. This can considerably reduce the cycle time. After intensive research work, the thermoplastic polyurethane (TPU) Desmopan was selected, which in mechanical and optical terms is very similar to EVA. This TPU, as an aliphatic polyurethane, also shows very low yellowing under UV radiation. Compared with EVA, the TPU has the following advantages (Table1): - faster l...

Kunststoffe international, 2005-11-21, Motor Vehicle Interiors
...ow the support construction behaves, and - which strains are acting on the metal parts. In order that the knowledge gained from the simulation may also be reflected in the real part, Bayer developed new Desmopan grades for TPU slush-moulded skins. These aliphatic products also permit instrument panel skins to be made in bright colours. Concurrently with the slush powders, Desmopan products are now being tested which can be blow moulded to instrument panel skins. A substantial advantage of this p...

Kunststoffe international, 2005-11-21, Polyurethanes: Diversity in PU
...laid floor covering with a low level of footstep sound. In automotive engineering, great value is placed on achieving design and functionality in conjunction with a low weight. In the TPU sector, Bayer MaterialScience offers two grades from its Desmopan range for application in the automotive interior. Effect yarn with TPU sheathing is already being used in seating textiles for the Audi RS6 (Fig.3). A transparent aliphatic polyurethane is employed here on account of its tear, tear propagation an...

Kunststoffe international, 2005-11-21, Possibilities with Plastics: Sports Applications
...les made of similar polyurethane materials make a weight reduction of over 40% possible compared to conventional sole materials. During the production of the outer sole and sole marks soft wear resistant thermoplastic polyurethanes (TPU) like Desmopan Active Thermoplastic are used that provide anitslip and cooling flexibility. Custom-made Clothing Thanks to High-quality Polymers Antislip, resistance to dirt and water as well as preservation of joints, ligaments and muscles through damping and ...

Kunststoffe international, 2005-11-21, TPU Film: Electricity on the Pacific
... of Duisburg/Germany. The individual components of these modules are protected by encapsulation in a special film called Etimex TPU Film Vistasolar from Etimex PP GmbH of Dietenheim/Germany. The film is made of the thermoplastic polyurethane (TPU) Desmopan from Bayer MaterialScience AG. Economic Production of Solar Modules “We chose this TPU film because it bonds much better to the silicon wafers, the various module films and the steel backing than the ethylene/vinyl acetate (EVA) copolymer pr...

Kunststoffe international, 2005-11-21, Two-component Technique for Cup Holders: Greater Ease of Operation
...wo-component process employing a rotary plate mould. During the first operation, the ribs of PC+ABS are formed, which are responsible for the transverse strength and the guide properties of the blind. As the second step, the TPU component (material: Desmopan, manufacturer: Bayer Polymers) is injected on. This fulfils two functions. Firstly, it forms the scratch-resistant surface and, secondly, through its elasticity, it allows the blind to be deflected. Taking the Curve with the Coffee Cup The ...

Kunststoffe international, 2007-09-19, Versatile Material with Unlimited Potential?
...ns Slush molding is a widely used method of producing decorative skins for automobile dashboards, door panels and arm rests. Bayer MaterialScience AG, Leverkusen, Germany, has launched a new aromatic thermoplastic polyurethane (TPU) known as Desmopan DP 3790AP for this technology. The material is used for molded skins that are post-coated as well as for a new process, in which an in-mold coating (IMC) step precedes the actual powder slush molding (IMC-TPU-slush). The international system suppli...

Kunststoffe international, 2007-11-21, The "Vitreous" Car
...he head restraints and armrests are made of transparent Technogel, which is a sunfast and elastic polyurethane gel containing no plasticizers. It feels soft and warm, offering relaxed seating. Engine compartment cables are coated with Desmopan polyurethane, which is a flexible material resisting wear and media impact. The body’s transparent Makrolon components are thermoformed in molds made of a polyurethane model foam which is based on Desmodur and Desmophen raw materials. The body and floor pa...

Kunststoffe international, 2007-12-17, Unlimited Versatility and Design
...ount of heating energy is lost via the roof. When it comes to the coating of conveyor belts, Bayer MaterialScience works together with Belgian plastic refiner, Dakota Coatings, on thermoplastic polyurethanes (TPU). Low-melting Desmopan, in particular, is applied to engineering fabric webs by means of the powder sintering process. The TPU is compounded by Dakota Coatings together with coloring agents and additives and processed into fine powders through cold grinding. It is also marketed under th...

Kunststoffe international, 2008-08-14, Growth through Change
...-molded by insert molding technology. This produces parts with high surface quality, which can otherwise only be produced with soft-touch paints, for example. The specially developed technology makes use of thin skins of Desmopan, Bayer MaterialScience’s thermoplastic polyurethane, which are laminated with thin nonwovens on one side. This material combination is extruded by a partner of Bayer MaterialScience – Caplast Kunststoffverarbeitungs GmbH, Nordkirchen, Germany. The aliphatic TPU versions...

Kunststoffe international, 2012-01-30, Sustainable Way of Walking
...asing demand from the shoe industry, for materials with large shares of renewable raw materials, Bayer MaterialScience has developed a type of TPU on an aromatic basis, that includes up to 72 % of renewable raw materials (grade: Desmopan). Not only does the new series of products support resource saving. This new development was also initiated to give suppliers products at hand which they can advertise as a “Green Products”, so that they are able to stress their commitment to sustainability. Per...

Kunststoffe international, 2013-01-28, Programmed to Have a Keen Memory
Athermoplastic polyurethane (TPU) with the product name Desmopan DP 2795A SMP marks the outcome of close cooperation between Bayer MaterialScience AG, Leverkusen, and the German BAM Federal Institute for Materials Research and Testing, Berlin, both in Germany. It is produced by a patented process from diphenylmethane diisocyanate (MDI), butanediol and ester diols based on polybutylene adipate. This TPU can be used to produce parts by injection molding or extrusion that can be temporarily stabili...

Kunststoffe international, 2015-11-23, 3-D Printing for Production
...nufacturing center at its Bietigheim-Bissingen site in Germany, with the focus on robot-based processes. The FLM systems developed there are designed to use various commercial or series thermoplastics. The system also allows different types of Desmopan (TPU, manufacturer: Covestro AG, Leverkusen, Germany) to be processed (Fig. 6).Another interesting aspect of FDM and FLM is the fact that components can be integrated into the part during the manufacturing process. For the purpose, a spacer must b...

Kunststoffe international, 2016-10-17, Polyurethane (PU)
... reduce the CO2 footprint of their products. Several TPU suppliers have responded to this trend and have concentrated on bio-based TPU. For example, Covestro and Reverdia V.O.F. in Geelen, Netherlands, jointly developed Desmopan, a bio TPU. Biosuccinium is used for this purpose, a sustainable succinic acid produced by Reverdia in commercial quantities and based on patented yeast technology. Its biomass content is 65, 52 and 42 %.TPU also exhibits great potential in additive processing methods. C...

Kunststoffe international, 2017-10-13, Polyurethanes (PU)
...ics. Aromatic or aliphatic polyester-based product types are already established in this area. Recently, there has been rising demand for hydrolysis-resistant TPUs for calender-coating technical textiles. Covestro will soon launch Desmopan 6783A, a polyether-based TPU which not only is stable to hydrolysis, but also possesses all the typical advantages of ether TPU such as high cold flexibility, abrasion resistance and microbial resistance. A similar product is Estane 54640 from Lubrizol. "Rigid...

Kunststoffe international, 2019-04-25, Gripper Variants According to Customer Requirements
...he next station and scanned before it is inserted into the Freeformer build chamber. The machine then completes the desired functional shape according to the stored 3D printing order in around three minutes, using the elastomer TPU (grade: Desmopan 9370, manufacturer: Covestro AG, Leverkusen, Germany). The finished vacuum gripper is removed, scanned again and undergoes a tactile functional test while still in the production cell. For this purpose, the desired chess piece is picked up via vacuum ...

Kunststoffe international, 2020-02-12, More Material Combinations, Lower Costs
...asma process creates a lasting bond between the molded-on TPU gasket and the PP bottom module, the KTP studied hard/soft peel-test specimens made from PP filled with 40 wt. % talcum (PP-T40) and TPU (type: Hostacom HBC 386L grey/Desmopan 481; manufacturer: LyondellBasell Industries Holdings B. V. and Covestro AG). These were manufactured in a modular, three-station 2-component injection mold with integrated plasma nozzle by Plasmatreat (Fig. 4). At the first station of the sliding table mold, a ...