Coextruded medical grade port tubing
US5439454A · kind A · utility
88Cited by
32References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1992 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | May 14, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1393
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides an improved coextruded medical port tubing. The medical port tubing provides characteristics that are desirable in the medical industry and therefore can be used as a medical port tubing in, for example, renal therapy or blood donor tubes. To this end, the present invention provides a coextruded medical grade port tubing comprising: an outer layer comprising a blend of polypropylene copolymer and styrene-ethylene-butylene-styrene copolymer; a tie layer; and a core layer comprising polyvinyl chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.