Bag with zipper tape and method for producing same
US10450106B2 · kind B2 · utility
3Cited by
5References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2016 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Apr 12, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/70
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A zipper tape includes a male belt-shaped base including a male base layer continuous with a male portion, and a female belt-shaped base including a female base layer continuous with a female portion. The male base layer and the female base layer are made of linear low-density polyethylene. A base film includes a sealant layer made of a resin containing polypropylene at 50 mass % or more with respect to the other resin component. A male seal layer and a female seal layer, which are bonded to the sealant layer, are made of a resin containing polyethylene at 50 mass % or more with respect to the other resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.