Hytrel - TPC - DuPont Engineering Polymers

Kunststoffe international, 2005-11-21, Design for Innovative Materials
...neumatic tube system which adjusts to the shape of the head. Beneath it is an impact-absorbing, protective plastic foam of the kind used in motor cycle helmets. For both components, use could also be made of the more rigid or more flexible grades of Hytrel, DuPont's thermoplastic elastomer. The mouthpiece and the holder for the gas cartridge are designed as injection mouldings of engineering thermoplastics (e. g. DuPont's glass fibre reinforced Zytel polyamide). For the collar itself, th...

Kunststoffe international, 2005-11-21, Easy and Reliable Demoulding
...eliability through Coating In the automotive industry, too, the surface quality of injection moulded parts is very important. In the production of door handles, for example (Fig. 5), a two-component mould is used to process ABS and TEEE natural (Hytrel). The demands made on the quality of the finish are very high indeed. The uniform structure must be perfectly retained because the part will be subsequently painted. To achieve a high level of process reliability, a layer of electroless nickel PT...

Kunststoffe international, 2005-11-21, Exhibition Preview: North American and Canadian Products at K 2004
...espectively. The Versollan RU series exhibits strong chemical adhesion to PC, PC/ABS, and ABS, and offers faster cycles than straight TPU. DuPont is developing novel modified powder forms of its Hytrel copolyester TPE for slush molding of auto dashboard covers to replace PVC. The soft Hytrel skin would be backed by a Hytrel foam layer and mounted on a rigid support of Crastin PBT--thereby creating the first all-polyester dashboard structure, which could be recycled without separating its compone...

Kunststoffe international, 2005-11-21, Thermoplastic Elastomers (TPE)
...ulding permit the low-cost production of moulded parts with rigid and flexible sections in just a single processing operation. One example is the air duct shown in Fig.4 which is produced by sequential coextrusion blow moulding. The Crastin PBT and Hytrel TPE-E grades (manufacturer of both grades: DuPont) have a similar viscosity and virtually identical swelling behaviour. Both meet the stringent requirements for application in the engine compartment: the air ducts are resistant to oils and fuel...

Kunststoffe international, 2006-09-08, Carrier Film: New Possibilities for Decorating Thanks to 3-D Dye-Sublimation Printing
... uneven structure. If the smoother side is now placed against the surface to be printed, the structure of the fabric no longer appears on the object. A carrier film that was also developed by DuPont consists of the thermoplastic elastomer TPC-ET Hytrel. It is less suitable for complexly shaped parts than the satin fabric, but also more cost-effective. Beneficial Characteristics. There are various ways of applying text, images and patterns to plastic surfaces (Fig. 3). Each method has its advanta...

Kunststoffe international, 2006-09-27, Processes in Synergy: Hot-plate Welding for High-melting Polymers
...In the mass-production process there is not material exchange at the hot plate after one welding operation (in this case, PA6 natural) Fig. 6. Weld-seam quality for the combination Crastin 6129 NC010 (PBT, light-coloured component) mit Hytrel HTR4275 BK316 (TPC-ET, dark component); top micrograph, bottom exterior view Table 1. Plastics for the weld studies Table 2. Increases in weld strength obtained by hot-plate welding with and without ultrasonic assistance. Development Partners This work ...

Kunststoffe international, 2006-10-30, Blow Moulding: Reliable Also at High Temperatures
...process, easily modified, offers high environmental compatibility and is recyclable. Part made from this material are rugged, yet lightweight and resistant to hot, chemically aggressive and humid surroundings. Polyester elastomer (TPC). Hytrel HTR4275 (Supplier: DuPont): elasticity of rubber, strength of plastic and processing characteristics of thermoplastic. The material is suited to parts where flexibility and exposure to a wide range of temperatures are required. Exhibits no tendency to crac...

Kunststoffe international, 2007-08-14, Creating New Growth Through Innovations
..." reported Rao. This was the same method which DuPont experts had used to make biopropanediol (bio-PDO), a starter product for the production of bio-PBT sold under the name Sorona and for bio-polyester elastomer sold under the name Hytrel (see also the article on p. 68 and the interview with Nandan Rao on p. 95). Europe Remains an Important Market "Europe now accounts for a third of our global sales of 30 billion USD," reported Alain Baronnier, European Sales and Marketing Director...

Kunststoffe international, 2007-08-14, On the Road to the Market
...the annual consumption of around 22,000 cars. The first industrial production plant, erected by DuPont and Tate & Lyle in Loudon, TN, USA, has already come on stream. BioPDO forms the basis for various plastics and fibers, including Sorona and Hytrel from renewable resources, which DuPont will commercialize this year. Bio-polyester as an Alternative to PBT The polyester Sorona is produced by the polymerization of BioPDO with either terephthalic acid (TPA) or dimethylterephthalate (DMT). The po...

Kunststoffe international, 2007-08-14, Positive Response from Customers
... developments in bioplastics and their implementation in the market. Kunststoffe: Which plastics based on sustainable raw materials does DuPont have in the research pipeline? Rao: DuPont has many products in the pipeline including Sorona, Cerenol, Hytrel RS, based on renewably sourced raw materials. Some of these are new products and some are modifications to existing products to make them renewable and better suited for new applications and markets. Kunststoffe: Which bio-products are close ...

Kunststoffe international, 2007-09-19, Flexible with High Loadbearing Capacity
...E2-UV ensures that roofing membranes meet the aging and UV resistance requirements specified in the latest European standards (EN 13859). Higher Safety with Lower Maintenance DuPont Engineering Polymers developed flexible and resilient Hytrel thermoplastic polyester elastomer as a material for insulating components. The Canadian company NorFast Inc. uses this material for new and innovative insulated joints that can help enhance the reliability of railroad signaling systems (Fig.6). Trials are...

Kunststoffe international, 2008-01-15, Elastomer Industry Has Understood
...ermoplastic elastomers in Luxembourg. With the opening of a new compounding unit in Luxembourg at the end of September 2007, the company completed the first phase in consolidating its production of thermoplastic polyester elastomers (Hytrel) in Europe. The new production line is part of a 9 million USD investment project aimed at integrating the entire elastomer production chain under the product name Hytrel at the Luxembourg site – from polymerization to compounding and supply of the finished p...

Kunststoffe international, 2008-09-23, Set for Special Applications
...isture and heat. The material is ideally suitable for use in lead-free SMT soldering processes. A new PET flameproofed with halogen, Rynite RE19041, has properties similar to those of conventional flame-retardant PET grades. The polyester elastomer, Hytrel RS, is based in part on renewable raw materials. In this 20 to 60 % of the polyols are derived from renewable raw materials. These polyols (Cerenol) are recovered from corn starch. In automotive applications polymeric materials are fou...

Kunststoffe international, 2009-10-14, Engineering Plastics from Renewably Sourced Materials
...ents, of which the hard segment is polycondensed from DMT and BDO. For the soft segment, various molecules can be utilized depending on the desired property profile. Figure 9 shows the typical structure of a TPC-ET molecule. Properties: With Hytrel RS 40F5 and 40F3 (TPC-ET with about 40 Shore D hardness), segments with at least 50 wt.-% renewable content can be realized. Since the bio-monomers do not differ from the fossil monomers, a final product results with properties comparable to those pre...

Kunststoffe international, 2010-09-24, Elastic Diversity
...s in future. Vamac is also suitable for catalytic converter systems using the aggressive urea solution, AdBlue, which is injected into the exhaust gas stream of high-performance diesel engines to reduce NOx emissions. The elastomers in DuPont’s Hytrel RS family contain 35 to 65 % renewably sourced material and provide at least the same performance characteristics as their wholly petrochemical counterparts. A new application in medical technology is an elastic tube made from a “special control” g...

Kunststoffe international, 2010-09-24, Facilitating Technical Life
...m chloride and other aggressive media typically associated with cars. The biobased plastics include Sorona EP thermoplastic polymers, which can be processed in a manner similar to high-performance polybutylene terephthalate, Hytrel RS thermoplastics elastomers, which contain 35 to 65 % renewable raw materials and have the same triedandtested properties as conventional Hytrel grades, and Zytel RS longchain polyamides. Type 1010 even has 98 % naturally-sourced ingredients. In the health care field...

Kunststoffe international, 2010-09-24, Sustainable and Efficient
... design and good processability typical of polyamide, thus opens up new options of replacing metals and eventually save weights and costs. DuPont puts another focus on its large portfolio of biobased materials. The thermoplastic polyester elastomers Hytrel RS contain between 35 and 65 % of renewable raw materials, while their property profile is comparable to that of conventional Hytrel (Fig. 1). DuPont”s range of products also comprises biobased thermoplastics, e. g. the Zytel RS-1010 polyamide...

Kunststoffe international, 2011-01-25, Appealing to (almost) all the Senses
...ropical or oil plant which is not suitable for human consumption. In addition these plants grow on barren soil that is of limited use for intensive agriculture. Applications are found for example in the sports sector (Fig. 1). With its new bio-based Hytrel RS, DuPont de Nemours (Deutschland) GmbH, Neu-Isenburg, Germany, presented the first thermoplastic elastomer of its kind for airbag applications as a result of a cooperation with Takata-Petri AG, Aschaffenburg, Germany. As with the standard Hy...

Kunststoffe international, 2013-01-28, Skillful Forming
... by the use of high-strength plastics from DuPont: The “Flex Back” backrest, for example, is made from renewable raw materials based on the thermoplastic polyester elastomer DuPont Hytrel RS TPC-ET; DuPont Hytrel TPCET and DuPont Crastin PBT are used for the “Dynamic Suspension”. These two elastic elements give the office chair its high elastic adaptability and supporting effect. It also supports the wide variety of sitting positions and movements necessary in the working world today and alway...

Kunststoffe international, 2013-08-19, More Global Collaboration
...0 and +90°C, thus exceeding composite materials based on polypropylene above 80°C. Also, DuPont is going to introduce at the K trade show a newly designed integrated spring strut stop buffer system (Fig. 2) made of Hytrel, a thermoplastic elastomer used in the new Fiat Punto. The novelty here is that the structural part integrates various components that had to be produced individually before. The stop buffer system was developed in a joint development project of DuPont, Fiat, Insit and Ossberge...

Kunststoffe international, 2015-02-28, The Key to Efficient Production of a Hybrid Part
...rid parts for the automotive industry while maintaining the highest quality standards.The rotary latches consist of a hardened and coated fine blanked steel part with a plastic coating of a black thermoplastic copolyester elastomer (TPC-ET, type: Hytrel 6356; manufacturer: DuPont Engineering Polymers). Not least because of its insulating and damping properties, this material is used to prevent unwanted noises occurring during long-term use.Lüttgens implemented the production of the hybrid parts ...

Kunststoffe international, 2017-02-23, All Elements at a Glance
...g systems. Therefore, finishing processes or insertion operations can be integrated, while retaining the high design freedom of the additive manufacturing process.For this purpose, IKV processed a thermoplastic elastomer at K 2016 (type: Hytrel; manufacturer: DuPont). The screw-based process permits rapid production at high throughputs. In combination with machining, which is also performed automatically, dimensionally true parts with good surface properties are produced. The possibility to swit...