Flexible sack for carrying bulk materials

Details Flexible sack for carrying bulk materials Flexible sack for carrying bulk materials

1985-07-03

1987-05-12

Goodrow, John L.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

383 6, 383 17, B65D 3302

Patent

active

046649573

ABSTRACT:
Flexible (single use) sack for transporting goods, such as bulk goods, having a weight of at least 3000 N. It comprises a fabric woven from polypropylene tapes and/or threads and exhibits a mean strip breaking strength of at least 550 N per 50 mm. Sacks with an improved safe working load which can be more readily handled, are obtained by using tapes or threads comprising a matrix of 75-85% B.W. of polypropylene and 25-15% B.W. of polyester, preferably polyethylene terephthalate. The polyester is preferably present in the form of fibrils.

REFERENCES:
patent: 4220684 (1980-09-01), Olson
patent: 4276330 (1981-06-01), Stanley et al.
patent: 4307764 (1981-12-01), Nattrass

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