Foamed polymer tubing
US4713271A · kind A · utility
33Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1983 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | Jun 24, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/15
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Process and apparatus are disclosed for manufacturing foamed articles such as tubes used as pipe insulation, which tubes are of a high impermeability and flexibility and are formed of a polymer, such as polyethylene or polypropylene, containing up to as much as 50% of an elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.