Cups, plates, trays or containers formed from laminates containi

Details Cups, plates, trays or containers formed from laminates containi Cups, plates, trays or containers formed from laminates containi

1976-09-14

1978-09-05

Ives, P. C.

Envelopes, wrappers, and paperboard boxes

Paperboard box

Box material includes a coating or a nonpaperboard...

428308, 428310, 428304, 428158, 428515, 428516, 428517, 428519, 260 4256, 260 4257, 260876B, 521 84, 521 91, 521146, 229 48T, B65D 100, B65D 520

Patent

active

041113497

ABSTRACT:
Thermoplastic polymeric laminates are prepared which have one layer of filled styrene polymer composition, and at least one layer of a dissimilar polymer selected from polyolefins such as polyethylene, polypropylene and polybutene, and nitrile group containing barrier polymers. The filled styrene polymer composition contains from 5 to 50 parts by weight filler, and is the product of mixing a styrene polymer masterbatch of impact polystyrene, filler, rubber and oil with polystyrene. The laminates can be used for thermoforming thin walled articles such as cups, plates, trays and containers.

REFERENCES:
patent: 3157564 (1964-11-01), Tucker et al.
patent: 3284542 (1966-11-01), Carrock et al.
patent: 3413249 (1968-11-01), Luftglass
patent: 3598642 (1971-08-01), Huang et al.
patent: 3660849 (1972-05-01), Jonnes et al.
patent: 3696987 (1972-10-01), Schuff et al.
patent: 3790435 (1974-02-01), Tanba et al.
patent: 3846360 (1974-11-01), Needham
patent: 3976608 (1976-08-01), Buckler et al.
patent: 4008347 (1977-02-01), Amberg et al.

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