Polyester coated paperboard for forming food containers and proc

Details Polyester coated paperboard for forming food containers and proc Polyester coated paperboard for forming food containers and proc

1978-03-28

1979-04-03

Dixon, Jr., William R.

Stock material or miscellaneous articles

Composite

Of polyester

220457, 156224, 156274, 15624417, 428 35, 427 39, B32B 2710, B29C 1904, B05D 306

Patent

active

041478363

ABSTRACT:
A coated paperboard product and a process for producing the same which includes corona discharge treatment of a paperboard surface and subsequent extrusion of molten polyester thereon. The resulting product has a very high degree of adhesion between the paperboard and polyester layers, and is capable of being utilized for forming pressed food trays which can be subjected to oven cooking temperatures.

REFERENCES:
patent: 3318748 (1967-05-01), Hurst
patent: 3448000 (1969-06-01), Paquin et al.
patent: 3484275 (1969-12-01), Lewicki
patent: 3498865 (1970-03-01), Paquin et al.
patent: 3904104 (1975-09-01), Kane
patent: 3924013 (1975-12-01), Kane
patent: 3939025 (1976-02-01), Kane
patent: 3967998 (1976-07-01), Kane
patent: 4026458 (1977-05-01), Morris et al.

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