Thermoformable polypropylene-based sheet
AssigneeAmoco Corporation
InventorsPhilip Jacoby, Jesse Wu, Mark Heiden
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Abstract
The invention provides a thermoformable sheet comprising a resinous polymer of propylene and an effective amount of a beta-spherulite nucleating agent, a process for making the sheet and articles thermoformed from the sheet.
Claims14
A thermoformable sheet comprising a crystalline resinous polymer of propylene having beta-spherulites present at K-value of about 0.3 to 0.95.
A thermoformed article, obtained from a thermoformable sheet, said article comprising a polymeric composition comprising a crystalline resinous polymer of propylene having alpha-spherulites and a residue of an organic beta-spherulite nucleating agent, wherein said thermoformable sheet, prior to thermoforming, comprises a crystalline resinous polymer of propylene having beta-spherulites present at a K-value of about 0.3 to 0.95.
Dependencies are inferred from the claim text.