Plasticized radiopaque vinyl resin compositions
Abstract
Abstract NOVEL PLASTICIZED, RADIOPAQUE COMPOSITIONS ARE PROVIDED BY FORMULATING VINYL RESINS WITH ALKYL 2,5-DIIODOBENZOATES, ALKYL OR ALKOXYALKYL 2,3,4,6-TETRAIODOBENZOATES (I), OR MIXTURES THEROF. THE COMPOSITIONS ARE USEFUL IN THE MANUFACTURE OF X-RAY OPAQUE MEDICAL DEVICES, PARTICULARLY SURGICAL TUBING. THE NEW COMPOSITIONS HAVE IMPROVED RADIOPACITY, LIGHTER COLOR AND SMOOTHER SURFACES AFTER EXTRUSION. WHEN USED SINGLY OR TOGERTHER, THEY HAVE A WIDE RANGE OF FLEXIBILITY AND STIFFNESS. SURGICAL TUBING IS PROVIDED IN A WIDE RANGE OF SIZES WITH PROPERTIES ESSENTIAL TO CARDIOVASCULAR AND URETERAL CATHETERIZATION TECHNIQUES. THE COMPOSITIONS ARE USED ALSO IN TUBING FOR STOMACH, NASAL AND THORACIC CATHETERS.
Inventors
- 👤 Vincent J Flynn
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |