Desmodur - Crosslinking agents - LANXESS Deutschland GmbH

Kunststoffe international, Protective Coat for Electronics and Body
...Dynasylan Ameo, + Albidur 1223, + Polycat DBU Sn)Evonik: Silikophen AC 1000 + TEGO Kat 1Evonik: Silikopon EF (+ Dynasylan Ameo, + Albidur 1223, + Polycat DBU Sn)Evonik: Silikotop E 901 + Vestanat HAT 2500 LV / + Covestro Desmodur N3600Lackwerke Peters: Elpeguard SL 1305 AQ-ECOLackwerke Peters: Elpeguard SL 1307 FLZ/2Lackwerke Peters: Elpeguard SL 1308 FLZLackwerke Peters: Twin-Cure DSL 1600 E-FLZ 75Pro3dure medical: Generative Resin GR-20Struers: Epofix E1232 ResinLackwerke Peters: Wepuran VT ...

Kunststoffe international, Sustainable Growth
... blades is advancing particularly rapidly in China (Fig. 3). A PU resin system is used for this purpose, for instance, based on the isocyanate components Baydur 78BD085 and Desmodur 44CP20 from Covestro, which have certifications including a DNV-GL certification (Det Norske Veritas – Germanischer Lloyd). This industrial standard for the safety, reliability and performance capability of wind energy systems is a key global criterion for using such resins in rotor blades. Exchange of Epoxy Resin fo...

Kunststoffe international, 2005-11-21, Heat Management
...tivities are required here if the walls of the building are not to become too thick. In a passive house in Viernheim/Germany, the insulating problem was solved with PU rigid foam from Puren Schaumstoff GmbH (based on the Bayer-PU products Baymer and Desmodur). The walls of the building comprise 30 cm thick PU rigid foam insulating slabs of WLG 30, which reduce the heat transition to 0.10 W/(mK). If these walls were insulated with EPS, they would have to be about 10 cm thicker - thanks to the lea...

Kunststoffe international, 2005-11-21, Low-Pressure Mixing Technology in PUR Processing
...frequency of 300 s-1, and the maximum throughput is 60 g/s. Experimental Material The PUR used in the series of experiments is a polyester formulation with a polyol (Bayflex VPPU 2003E), a crosslinking agent (Bayflex VPPU 0689) and an isocyanate (Desmodur VPPU 0926, all components from Bayer, Leverkusen). The crosslinking agent is added to the polyol in a ratio of 100 : 6.3 before processing. This mixture is processed together with the isocyanate in a mixing ratio of 100:40. The material suppl...

Kunststoffe international, 2005-11-21, Major Investment: Bayer Further Expands Production in China
...Production facilities for polyisocyanates will make the location Bayer's most important base for coating raw materials in this region. A plant with a capacity of 11500t/a has already been producing raw materials for the Desmodur N range since April 2003. A facility is currently being built for polyisocyanate raw materials in the Desmodur L product range. When this plant is completed in late 2004, it will bring Bayer’s total production capacity in Caojing for this product range to 11000t/a. T...

Kunststoffe international, 2005-11-21, News
... Asian-Pacific region. The initial production capacity of 30000t/a is planned to come on-stream by 2006, followed by a potential capacity expansion of 20000t/a depending on the development of the market in this region. Bayer has been producing Desmodur N surface coating resins in Caojing since April 2003. A production plant for Desmodur L with an annual capacity of 11000 tonnes will come on stream at the end of 2004. Construction work on a plant for polymer and monomer MDI made from virgin MDI –...

Kunststoffe international, 2005-11-21, Polyurethane Elastomers in Practice
...photo; sources: left: BT, right: Sichelschmidt). Support bearings, sealing rings and scraper rings, pump membranes and doctor blades are also made of Vulkollan. The fact that use is made of the diisocyanate NDI, which Bayer markets under the name of Desmodur 15, has recently prompted the question as to alternatives, since this is the "oldest" diisocyanate still in use - the first one ever to be employed in industrial applications for elastomers. Efforts have thus been made to replace thi...

Kunststoffe international, 2005-11-21, Possibilities with Plastics: Sports Applications
...ocess is final already after 10 to 20s thanks to the high initial strength of the adhesive formulation. The thermal and long-term stability of the adhesion are additionally increased by addition of the water-emulsive cross-linking isocyanate Desmodur DN. Ski boots must be light and comfortable and sit firmly. Also this requirement profile fits TPU types well, as the "Grand Prix RT" example from Nordica shows. The outer shell is produced in one step using two-component injection moulding...

Kunststoffe international, 2007-10-21, Polyurethanes (PU)
...rticular are enjoying increased sales. This growth is being driven by the auto industry, the machinery sector and the logistics field. The demand for hot cast elastomers based especially on naphthalene diisocyanate (Desmodur 15) has risen considerably. The reason for this is that production of these elastomers has been greatly simplified. In the past, the processor had to prepare prepolymers in a complex process and then process them within a very short period of time thereafter. Bayer MaterialS...

Kunststoffe international, 2007-11-21, The "Vitreous" Car
...ng. This comfort effect is caused by a polyurethane Soft Feel coating, based on the high-quality, watery varnishing raw materials of the Bayhydrol and Bayhydur series. Interior metal parts are varnished with a chromescent paint based on Desmodur and Desmophen, which are polyurethane varnishing raw materials. The two occupants sit in tandem and their seats’ bulkheads also consist of Makrolon covered with a stainless steel net. These are produced from thermoformed 12-milimeter boards. The head res...

Kunststoffe international, 2008-10-17, Polyurethanes (PU)
... The reason for this is that it exhibits better mechanical and acoustic decoupling than rubber. Another factor that has contributed to the growth of Vulkollan, which is based partially on naphthalene diisocyanate (Desmodur 15), is that thanks to shelf-stable prepolymers it can be processed simply in a two-component reaction. PU hot- elastomers that are based on amine-linking MDI prepolymers (Baytec MAX) also are new on the market. They are free of TDI and thus represent an altern...

Kunststoffe international, 2010-11-25, Of Fibers, Foam and Nano (?)
...so, the new Bayer baby already had a name: An application for the brand name Moltopren was made in 1938 and granted in 1939. However, its parents were actually the younger ones: Desmophen – “fiber drawing” – and Desmodur – “fiber hardening” – which were only applied for in 1941 and granted in 1943. 1940 to 1949: Adhesives, Coatings, Elastomers The first half of the 1940s was defined by the Second World War and the second half by the “post war years”. Kurt Frisch reported [3], that during the Sec...

Kunststoffe international, 2014-03-21, Novel Material Concepts: Sustainability and Design
... cockpit of a production sedan is produced with a natural leather appearance and feel by means of the DirectSkinning process (Fig. 6) with such a polyurethane system. Many components (Desmophen and Desmodur) of the paint-like top coat systems, which can be applied in thicknesses from 0.2 to >1mm, come from the Bayer portfolio. Working together closely with Bayer experts, these are tailored to the particular applications through use of appropriate additives by specialists in the formulation of...

Kunststoffe international, 2016-09-23, Vis-à-vis with the Driver
...rial versions are also highly resistant to weathering and chemicals, making them predestined for exterior applications. Conceivable uses include decorative trim in a range of colors and B-pillar trim. The lacquer systems based on the PU materials Desmodur and Desmophen exhibit good resistance to weathering and chemicals as well as scratch resistance. These lacquer systems also have a self-healing effect (reflow effect). Filling Simulation for the PU Lacquer In laying out the mold for the steerin...