Snap zipper
US5645905A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1995 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Oct 10, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A snap zipper includes strip-male and strip-female members, and at least its portion for fusing to a bag body is made of a material mainly composed of a polyester type elastomer or a polybutylene terephthalate (PBT) resin and that the resin of the portion for fusion has a bending modulus of elasticity of 10,000 kg/cm.sup.2 or below. At least its portion for fusion is made of a material having a composition including polyester type elastomer and a polyolefin type resin or polybutylene terephthalate (PBT) resin and a polyolefin type resin and the content of the polyolefin type resin in the composition is 3 to 50% by weight. In case of the snap zipper adapted to have a portion for fusing to the bag body and the male and female members, excepting the portion for fusion, the portion for fusion may be composed of copolymer of ethylene and acrylic acid ester or copolymer of ethylene and methacryic acid ester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.