Multilayer container of polycarbonate and amorphous polyamide of improved barrier and stress crack resistant properties
US5439718A · kind A · utility
2Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1993 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Jul 21, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Multilayered containers comprising polycarbonate layers and amorphous polyamide layers wherein the amorphous polyamides are modified and unmodified amorphous polyamides of high glass transition temperatures. The containers have improved stress craze/crack resistance and improved rewashing properties. The containers are useful for carbonated beverages and are rewashable and refillable at elevated temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.