Thermoplastic polyester composition having improved flavor-retaining property and vessel formed therefrom
US4837115A · kind A · utility
82Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1987 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Jul 30, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a vessel composed of a thermoplastic polyester such as polyethylene terephthalate, by incorporating a predetermined amount of a terminal amino group-containing polyamide or an amino group-containing compound into the polyester, acetaldehyde formed in the vessel wall can be effectively caught.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.