Lightweight laminated paperboard

Details Lightweight laminated paperboard Lightweight laminated paperboard

1988-12-19

1990-06-05

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

428167, 428178, 428183, 428184, 428186, 428213, 428220, 428332, 428215, B32B 328

Patent

active

049313460

ABSTRACT:
This invention relates to a novel laminated paperboard and, more particularly, to a novel laminated paperboard with a center ply having alternating grooves and ridges, which has characteristics of strength and rigidity equivalent to solid laminated paperboard, but is 30% to 45% lighter in weight.

REFERENCES:
patent: 479999 (1892-08-01), Thompson
patent: 2091918 (1937-08-01), Finck
patent: 3308006 (1967-03-01), Kresse et al.

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