Isocyanate-coupled reinforced oxymethylene polymers
AssigneeCelanese Corporation
InventorsKavilipalayam Natarajan, Daniel Zimmerman
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Abstract
An improved molding composition is provided comprised of an oxymethylene polymer, a blocked or unblocked isocyanate compound in an amount ranging from about 0.2 to 2.0 percent by weight based on the weight of the polymer, a filler and an isocyanate-active catalyst. Shaped articles can be produced from the composition which exhibit desirable mechanical properties without the need for fibrous reinforcing agents.
Claims20
A molding composition comprised of an oxymethylene polymer having at least 60 percent of recurring oxymethylene units, a blocked or unblocked isocyanate compound in an amount ranging from about 0.2 to 2.0 percent by weight based on the weight of the polymer, a non-reinforcing, particulate filler and an isocyanate-active catalyst.
Dependencies are inferred from the claim text.