Zipper tape, bag provided with zipper tape, and method for manufacturing bag provided with zipper tape
US12122560B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2021 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Jan 22, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D75/66
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
There is provided a zipper tape bonded to a bag body having a first surface and a second surface and including: a zipper tape body including a first base strip bonded to the first surface, a second base strip bonded to the first surface with a bonding portion, and engagement portions being mutually engageable and projecting from the first and second base strips, respectively; and a cutting strip provided in a region where the second base strip faces the first surface and does not face the first base strip. The zipper tape body is formed of a resin composition whose main component is a polyolefin resin. The cutting strip is formed of a resin composition whose main component is a polyolefin resin and includes a cutting strip body and a peelable layer layered on the cutting strip body and formed of a resin composition having peelability to a polyolefin resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.