Surgical devices of polyesteramides derived from bis-oxamidodiols and dicarboxylic acids
US4226243A · kind A · utility
172Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1979 |
| Grant date | Oct 7, 1980 |
| Priority date | — |
| Expiry date | Jul 27, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/924
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Alternating esteramide polymers are obtained from the reaction of bis-oxamidodiols such as N,N'-bis(.omega.-hydroxyalkylene)oxamide with a dicarboxylic acid or diesters such as diethyl oxalate, diethyl succinate, diethyl suberate, or dimethyl terephthalate. The polymers are obtained in good yield and have film- and fiber-forming properties. Some polymers are absorbable in biological systems and are useful as absorbable surgical devices. Other of these polymers are nonabsorbable and are useful as textile fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.