Multi-layered tubes having impact resistance-modified polyamide layers
US5219003A · kind A · utility
48Cited by
15References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1991 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Feb 27, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K15/01
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Cold impact-resistant tubing especially useful as a fuel line for motor vehicles which is stable in length, has a brief thermal overload capacity, and consists of at least three layers of at least two different mutually compatible polyamides. The tubing also preferably has an internal and an external layer of impact resistance-modified polyamide, with or without a plasticizer, and a barrier between the layers of impact resistance modifier-free homopolyamide, copolyamide or blends thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.