Method for producing a heat-insulating paper container from a pa

Details Method for producing a heat-insulating paper container from a pa Method for producing a heat-insulating paper container from a pa

1981-12-29

1984-03-06

Anderson, Philip E.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

156 79, 156256, 229 31, 264 456, 264 53, 264DIG5, 427 451, 427373, 428 35, B29D 2700

Patent

active

044353448

ABSTRACT:
A heat-insulating paper container having good heat-insulating property which can be prepared easily at low cost is disclosed. The paper container is prepared by heating a paper container comprising a body member and a bottom member, wherein one surface of at least the container body member is coated or laminated with a thermoplastic synthetic resin film and the other surface of the body member is coated or laminated with the same or different thermoplastic synthetic resin film or an aluminum foil, to thereby foam the thermoplastic synthetic resin film and form a heat-insulating layer on at least one surface of the container.

REFERENCES:
patent: 3262625 (1966-07-01), Russell et al.
patent: 3300553 (1967-01-01), Shelby
patent: 3390618 (1968-07-01), McArdle
patent: 3769056 (1973-10-01), Sincock
patent: 3836423 (1974-09-01), Wagner et al.
patent: 3919368 (1975-11-01), Seto
patent: 4206249 (1980-06-01), Suzuki et al.

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