eFunda Polymers: Listing of Polyurethane (Estane, Pellanthane)

Introduction

Polyurethane, also known as PU, has been mass-produced since 1940.
-	It is a thermoplastic or thermoset, (typically reinforced), polyadduct.
-	Applications: It is often used in automotive structural members, computer housings, furniture, and packaging foams.
-	General properties: It has high impact resistance, dielectric strength, chemical resistance, and abrasion resistance. It can be made into films, solid moldings, or flexible foams. However, it becomes brittle with prolonged outdoor exposure.
-	Trade Name: Estane, Pellanthane.

Specific Grades of Polyurethane

1.	Polyurethane, thermoset, casting resin, liquid.
2.	Polyurethane, thermoset, casting resin, unsaturated.
3.	Polyurethane, thermoplastic, unreinforced, molding.
4.	Polyurethane, thermoplastic, 30% long glass fiber reinforced.
5.	Polyurethane, thermoplastic, long glass reinforced, molding compound.
6.	Polyurethane, thermoplastic, 30% PAN carbon fiber, EMI shielding (conductive).

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