Elastomers Texin

Polyurethane multiblock copolymers of the type described by Eqs. 2-197 and 2-198 constitute an important segment of the commercial polyurethane market. The annual global production is about 250 million pounds. These polyurethanes are referred to as thermoplastic polyurethanes (TPUs) (trade names Estane, Texin). They are among a broader group of elastomeric block copolymers referred to as thermoplastic elastomers (TPEs). Crosslinking is a requirement to obtain the resilience associated with a rubber. The presence of a crosslinked network prevents polymer chains from irreversibly slipping past one another on deformation and allows for rapid and complete recovery from deformation. 

Thermoplastic elastomers are now available from several manufacturers Texin (Mobay), Desmopan (Bayer), Roylar (U. S. Rubber), Elastollan (Elastomer Products), Estane (B. F. Goodrich) are only few examples. 

Bayer s Texin polyester and polyether TPU and TPU/polycarbon-ate (PC) elastomers were pioneer TPEs in early development of passenger car fronts and rear bumpers. PC imparts Izod impact strength toughness required for automotive exterior body panels. Extrusion applications include film/sheet, hose, tubing, profiles, and wire/cable covering. Hardness ranges from Shore A 70 to Shore D 75. Texin can be painted without a primer. 

Texin, Thermoplastic urethane elastomers, Bayer Corp., Polymers Div. 

Thermoplastic urethane elastomers are products derived from the basic urethane polymer work conducted since 1937 by Professor Otto Bayer and co-workers in Germany. The first commercial uses of solid urethane polymers were synthetic fibers and bristles in Germany under the trademark of Perlon U thermoplastics under the trademark Igamid U. Later investigations led to the development of the Vulkollan cast urethane elastomers and the Multrathane cast systems at Mobay Chemical Company. In 1961, Mobay introduced Texin urethane elastomer resins for injection molding and extrusion on thermoplastic equipment. 

Texin urethane elastomer. An engineering handbook. Miles 1992. 

Texin Thermoplastic urethane elastomers, Bayer Thermogrip Hot melt adhesives, Bostik... 

Table 10.8 Tribology Properties of Covestro Texin and Desmopan TPU Thermoplastic Elastomers [4]...

Texin and Desmopan thermoplastic polyurethane elastomers, a guide to engineering properties. Bayer MaterialScience 2004. 

Two Federal Food and Drug Administration (FDA) approved grades of thermoplastic polyurethane elastomer (TPU) with different hardness values were employed in this study. One was a Shore A 85 ( D 29) and the second a Shore D 45. Both TPU materials were Texin grades from Bayer Corporation and had similar melt viscosities. A high... 

Two thermoplastic elastomers (Bayer s Texin DP7-1049 and 990) were used for this work. Both materials were aromatic polyether-based thermoplastic polyurethane with similar melt viscosities and Shore hardness valnes of 45D and A90, respectively [19]. 

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