Copolyesters useful in blood separation assemblies
US4148764A · kind A · utility
39Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1978 |
| Grant date | Apr 10, 1979 |
| Priority date | — |
| Expiry date | Jan 5, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/25375
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Copolyesters are provided which are derived from mixed dibasic acids and a branched-chain diol. These copolyesters possess a unique balance of physical and chemical characteristics which permits their use in small amounts in blood separation tubes to provide an effective barrier between the light and heavy phases of the blood after centrifuging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.