Baytec - PUR - Covestro Deutschland AG

Kunststoffe international, 2005-11-21, Elastomers
...and for rotor bearings in spinning machines. If Vulkollan’s complete property profile (such as its compression set) is not required, Baytec P and Q are more economical compromises. Alternative hot-cast elastomers are available under the tradename Elastopal from Puralis GmbH, Schwarzheide/Germany, which arose in 2000 as a spin off of the cast- elastomer division of Elastogran GmbH, Lemförde/Germany. Elastopal EM and AM grades are based on MDI as isocyanate component, while Elastopal EN, ENG and A...

Kunststoffe international, 2005-11-21, High-grade Bath Concepts: Pampering the Senses
...lass-fibre reinforced plastics (GRP) are used, but since the middle of the nineties, a more environment-friendly alternative has been available for reinforcing bathtubs and shower trays, namely polyurethane. A sophisticated sandwich structure of BaytecRS makes it possible to give thermoformed parts the necessary stability even without glass fibres (Fig.1). BaytecRS is a high-build, solvent-free, cold-curing, multi-component polyurethane system developed specifically for this application by Bayer...

Kunststoffe international, 2005-11-21, Polyurethanes (PUR)
.... Now, they have been developed into versatile design materials, with the aim of competing for market share with glass fibre-reinforced polymers. Solvent-free spray systems (Baytec RT) can now be used for the production of solid, filler-free polyurethane coatings, which cover the hardness range from 75ShoreA to 70ShoreD. Just a few millimetres-thick rigid-soft-rigid multilayer structures, applied fully automatically in one operation by an application robot, can be used to produce extremely high-...

Kunststoffe international, 2005-11-21, Possibilities with Plastics: Sports Applications
... "seat pressure" evenly over the entire saddle surface. Also inline skaters profit from polymers. The rollers, which must have an optimum of abrasion resistance, are a high-tech product made of polyurethane elastomers such as Baytec P. The rollers made of quasi-prepolymers based on polyetherpolyols are particularly suitable for leisure and fitness skates because they are flexible and soft. On the other hand hard rollers with high maximum mechanical stress and road grip result if polyeste...

Kunststoffe international, 2006-08-31, PU Technology: Discovering New Possibilities
...moulded foam applications, plus SkinRIM. New process ideas can also be tried out (Fig. 4). During the demonstration of a production process for an automotive part made up of an elastic decorative film, a sprayed-on elastic, haptic layer of Baytec Reactive and a Baypreg sandwich support with local chopped glass fibre reinforcement, the invited guests were able to convince themselves of the high functionality and process capability of the new CSM spray moulding centre. Now that the PUR-CSM spray m...

Kunststoffe international, 2007-09-19, Versatile Material with Unlimited Potential?
Versatile Material with Unlimited Potential? Polyurethanes (Trade-fair-pre-report K 2007) The global market for polyurethanes has been growing steadily for years. It is driven by the desire for comfort, as in the furniture and automotive sectors, and for robust or tactile surfaces. At the K 2007 international plastics exhibition, manufacturers and processors will be providing information on new developments in these sectors. Virtually no other material combines an attractive appearance wit...

Kunststoffe international, 2007-10-21, Polyurethanes (PU)
...s. For orthopedic cushions or hospital beds, it is important that the molded VE foam parts can be sealed immediately during production by using PU spray technology and applying a permanent waterproof elastomer skin (Baytec Reaktiv) (Fig.8) as an in-mold coat. This eliminates the need for subsequent time-consuming encapsulation of the molded parts, for instance, in plasticizer-containing PVC film. In the market for PU elastomers, hot cast elastomers in particular are enjoying increased sales. Thi...

Kunststoffe international, 2008-07-15, Unlimited Combination
... the elastomeric PU skin component is injected into the mold, only partly filling the cavity. Then the thermoplastic core component is injected into the PU while it is still liquid, to completely fill the cavity (Fig. 13). A spray skin system (type: Baytec Reactiv; manufacturer: Bayer Material-Science AG, Leverkusen, Germany) is used for the PU skin component. The amine added to the system ensures an increase in viscosity before the actual curing reaction, and thus makes it possible to provide t...

Kunststoffe international, 2008-10-17, Polyurethanes (PU)
...aphthalene 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 alternative to amine-linked TDI elastomers. While otherwise exhibiting similar mechanical characteristics, they differ by having greater elongation at break and considerably better hydrolysis res...

Kunststoffe international, 2009-07-16, With a Lightweight Structure
...arting point is an abrasion-resistant polyurethane lacquer that is sprayed onto the grained bottom half of a press mold by in-mold coating (IMC). This lacquer film is then followed by an identically colored layer of the elastomeric, wear-resistant Baytec PU spray system. In parallel with that, a PU sandwich package comprising a cardboard honeycomb core laminated with glass fiber mats on both sides, is produced in a separate spray cabin as carrier layer. The sandwich is sprayed on both sides with...