Delamination-resistant multilayer container, preform,...

Details Delamination-resistant multilayer container, preform,... Delamination-resistant multilayer container, preform,...

2003-10-16

2009-02-17

McDowell, Suzanne E. (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

Reexamination Certificate

active

07491359

ABSTRACT:
A plastic container, preform or article includes a multilayer wall having at least one layer of matrix resin, at least one layer of barrier resin, and an adhesion-promoting material blended with the barrier resin and/or the matrix resin to promote bonding between the barrier and matrix layers. The matrix resin preferably is an ester-containing resin, most preferably a polyester such as PET. The adhesion-promoting material includes an amine polymer, preferably an imine polymer having a plurality of available primary, secondary or tertiary amine groups. An alkylene imine polymer is preferred, particularly a polyethyleneimine polymer.

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