Copolyesters useful in blood separation assemblies
US4101422A · kind A · utility
73Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1977 |
| Grant date | Jul 18, 1978 |
| Priority date | — |
| Expiry date | May 11, 1997 |
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.