Improved thermoplastic coated paperboard web

Details Improved thermoplastic coated paperboard web Improved thermoplastic coated paperboard web

1978-06-23

1981-01-27

Lusignan, Michael R.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

15624419, 15624425, 229 31, 427288, 427391, 428172, 428329, 428513, 428906, B05D 500, B32B 302, B29B 500, B29F 206

Patent

active

042475880

ABSTRACT:
A web suitable for forming liquid-containing paperboard cartons wherein a thermoplastic film is extruded onto a paperboard web, the film having thick strips deposited over those areas of the web which ultimately form the bottom portion of the cartons.

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Polythene, Renfrew, A.; 1957, 1st Edition, pp. 355-359, 361-365, 369-373, 397-416.
Polythene, Renfrew, A.; 1957, 2nd Edition, pp. 519-524, 526-532, 537-539, 541, 543, 544, 585-597, 663, 664, 669-671.

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