Heatset multilayer container

Details Heatset multilayer container Heatset multilayer container

1986-03-20

1987-12-15

Short, Patricia A.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

428480, 428911, 525444, 525933, B65D 140

Patent

active

047132698

ABSTRACT:
A hollow transparent delamination resistant heatset multilayer article is disclosed where the article includes at least one barrier layer containing a copolyester formed from terephthalic acid, ethylene glycol and 1,3 bis(2-hydroxyethoxy) benzene directly adhered to at least one layer containing poly(ethylene) terephthalate (PET). The multilayer articles are blowmolded using a heatsetting process. The heatset multilayer articles retain high gas barrier properties, uniform thickness in layers, and desirable mechanical strength properties even after the heatsetting process. Also, the multilayer heatset articles have excellent interlayer adhesion without the need for an adhesive layer, high thermal stability, and remain optically clear after the heatsetting process.

REFERENCES:
patent: 4398017 (1983-08-01), Go
patent: 4476170 (1984-10-01), Jabarin
patent: 4482586 (1984-11-01), Smith
patent: 4551368 (1985-11-01), Smith
patent: 4565851 (1986-01-01), Barbee
patent: 4578295 (1986-03-01), Jabarin

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