Hoechst Celanese Corporation

Hna Holdings, Inc.

Robert M Kimmel

John Arthur Penoyer

Randy Douglas Jester

Dominick L Cangiano

Arnold E Wolf

Ronald N DeMartino

James E Kuder

Douglas Duane Roth

Sherman Hall Rounsville

Arno Ewald Wolf

Co-processable multi-layer laminates having a high T layer and at least one low T layer with layers having properties of high strength, lo- or no-haze, and transparency after processing into various multi-layer forms are useful for packaging and container applications. The multi-layer laminate has at least one low T layer of a first thermoplastic polyester having at least one crystallization rate inhibitor. The total amount of crystallization rate inhibitor is effective to prevent substantial haze in the low T layer upon heating. In most applications, the total amount of crystallization rate inhibitor also does not substantially inhibit strain-induced crystallization of the at least one low T layer when the laminate is stretched during processing. The multi-layer laminates of the invention have improved properties such as reduced shrinkage and/or high barrier properties, with a very small amount of high T material used to impart these improved properties to the laminate.

Co-processable multi-layer laminates for forming high strength, haze-free, transparent articles and methods of producing same

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.

Multilayer laminate formed from a substantially stretched non-molten wholly aromatic liquid crystalline polymer and non-polyester thermoplastic polymer

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-liquid crystalline thermoplastic polyester 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 to at least 100 percent elongation at temperatures below 200&deg; C. and at high total draw ratios without fractures or tears. Containers suitable for food or beverage products may be produced from the laminates.

Multilayer laminate formed from a substantially stretched non-molten wholly aromatic liquid crystalline polymer and non-liquid crystalline polyester and method for forming same

Growing community of inventors

Greenville, SC, United States of America

Robert M Kimmel