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US 6,784,252 B2Granted
Blow moldable propylene polymer compositions
AssigneeDow Global Technologies LLC
InventorsRavi Ramanathan, Thomas D. Traugott, Leo R. Novak, Malcolm F. Finlayson
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Abstract
Disclosed are blow molded automotive articles comprising a coupled propylene polymer composition.
Claims15
A blow molded automotive article comprising a coupled propylene polymer composition comprising a coupled propylene polymer, a substantially linear ethylene polymer and/or a linear ethylene polymer and optionally a thermoplastic polymer and/or a filler.
A process for blow molding a coupled propylene polymer composition into an automotive article comprising the steps of:
- i extruding a coupled propylene polymer comprising a coupled propylene polymer, a substantially linear ethylene polymer and/or a linear ethylene polymer and optionally a thermoplastic polymer and/or a filler in an extruder through a die,
- ii forming a molten tube-shaped parison,
- iii holding the parison within a shaping mold,
- iv blowing a gas into the mold so as to shape the parison according to the profile of the mold and
- v yielding a blow molded automotive article.
2 more elements
Dependencies are inferred from the claim text.