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AssigneeHoechst Celanese Corporation
InventorsJames E. Kuder, Ronald N. Demartino, Dominick Cangiano, Randy Douglas Jester, Arnold E. Wolf, Robert M. Kimmel, Sherman H. Rounsville, John Arthur Penoyer
Estimating the term…
Multilayer laminates including films, sheets, preforms, containers and other articles having at least one wholly aromatic, amorphous, stretchable liquid crystalline polymer layer with at least one non-polyester thermoplastic polymer layer are provided as well as methods for producing and stretching the multilayer articles. The laminates are suitable for thermoforming and stretch blow molding applications and may be stretched at temperatures lower than the molten state of the liquid crystal polymer and at high total draw ratios without fractures or tears. Containers suitable for food or beverage products may be produced from the laminates.
A multilayer laminate comprising (a) at least one layer of wholly aromatic liquid crystalline polymer which is stretchable at a temperature below its molten state, and (b) at least one layer of a non-polyester thermoplastic polymer, wherein said multilayer laminate was stretched to at least 73 percent elongation while at a temperature below the molten state of said layer (a) of wholly aromatic liquid crystalline polymer so as to achieve molecular orientation in layer (b).
Dependencies are inferred from the claim text.