Snap zipper and a bag with the same

Details Snap zipper and a bag with the same Snap zipper and a bag with the same

1997-06-13

1999-09-21

Nold, Charles

Stock material or miscellaneous articles

Hollow or container type article

428 357, 428 33, 206810, 220253, 220213, 220350, 383 97, 383 63, 383109, 383113, B31B 190

Patent

active

059551607

ABSTRACT:
Each base for fusing a snap-zipper male member and a snap-zipper female member, which form a snap zipper, onto a bag body is formed from a mixture of polypropylene and an ethylene copolymer obtained by copolymerizing ethylene and an .alpha.-olefin having a carbon atom ratio of 3 to 20, in which the ethylene copolymer has a weight average molecular weight
umber average molecular weight of less than 3, density in the range from 0.850 g/cm.sup.3 to 0.935 g/cm.sup.3, melt index in the range from 0.3 g/10 min. to 15 g/10 min., and range of number of branching dependent on molecular weight of 0-5 branches/1,000 carbon. A bag with the snap zipper is structured to fuse the snap zipper through the bases onto the bag body.

REFERENCES:
patent: 5335997 (1994-08-01), Kanemitxu
patent: 5603995 (1997-02-01), Takubo et al.
patent: 5645905 (1997-07-01), Takubo et al.
patent: 5700091 (1997-12-01), Tanaka et al.
patent: 5733636 (1998-03-01), May

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