Single layered polypropylene containers and their use
US6558764B2 · kind B2 · utility
8Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1999 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Aug 23, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1397
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to packaging for hygroscopic resin materials, and more particularly the invention relates to methods for packaging a hygroscopic resin composition wherein said method comprises packaging the composition into a mono-layer container comprising polypropylene resin and wherein the container has a wall thickness of between 0.25 mm and 0.6 mm. In a preferred embodiment, the composition comprises at least one resin of the group consisting of polyurethanes, polycarbonates, polyesters, and polyamides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.