Huntsman TPU

Thermoplastic polyurethanes (TPUs) offer exciting possibilities for meeting the manufacturing challenges of a fast-changing world. Well-known for their outstanding versatility, Huntsman's TPUs can improve the production and enrich the performance of anything from shoes, seals and films to filters, conveyor belts and cables.

Building on years of experience, we have developed a large number of TPUs with limitless potential to meet adhesive, coating, injection molding, extrusion, film and compounding application requirements.

• Innovative solutions that can be customized to individual needs
• Ideally suited to a wide range of processing technologies
• Global supply chain plus excellent technical support

• 9 April 2010Welcome to the New Web Pages of Huntsman Thermoplastic Polyurethanes
• 9 April 2010Huntsman Launches New Fire-Retardant TPU for Consumer Electronics
• News archive Huntsman Returns to Khimia with Formula for Success

Applications		Benefits		Brands		Locations
Endless application possibilities		Advanced features with the technical edge		Gain competitive and commercial advantage		Global reach, regional knowledge, local support

Source

Polyurethane

From Wikipedia, the free encyclopedia

Example of synthesis of a polyurethane. Note the urethane groups -NH-(C=O)-O- linking the units of the product.

This article may be too long to read and navigate comfortably. Please consider splitting content into sub-articles and using this article for a summary of the key points of the subject. (November 2009)

A polyurethane (IUPAC abbreviation PUR, but commonly abbreviatedPU) is any polymer consisting of a chain of organic units joined byurethane (carbamate) links. Polyurethane polymers are formed throughstep-growth polymerization by reacting a monomer containing at least twoisocyanate functional groups with another monomer containing at least two hydroxyl (alcohol) groups in the presence of a catalyst.

Polyurethanes are widely used in high resiliency flexible foam seating, rigid foam insulation panels, microcellular foam seals and gaskets, durable elastomeric wheels and tires, automotive suspension bushings, electrical potting compounds, high performance adhesives and sealants, Spandex fibers, seals, gaskets, carpet underlay, and hard plastic parts (such as for electronic instruments).

Polyurethane products are often called "urethanes". They should not be confused with the specific substance urethane, also known as ethyl carbamate. Polyurethanes are neither produced from ethyl carbamate, nor do they contain it.

Contents  [hide] 1 History 2 Chemistry 3 Raw materials 3.1 Isocyanates 3.2 Polyols 3.3 Chain extenders and cross linkers 3.4 Catalysts 3.5 Surfactants 4 Production 5 Health and safety 6 Manufacturing 6.1 Dispense Equipment 6.2 Tooling 7 Applications 8 Testing 8.1 Effects of visible light 9 See also 10 References 11 External links