Flame-retardant polyolefin/thermoplastic polyurethane composition
US9758672B2 · kind B2 · utility
1Cited by
13References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2009 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Jan 27, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2201/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is a flame-retardant polyolefin/thermoplastic polyurethane formulation made from or containing a polyolefin, a thermoplastic polyurethane, and an intumescent, polyphosphate flame retardant composition. The invented system achieves elongations >400% and tensile strengths >1500 psi while the same polyolefin only achieved 100% elongation and <1000 psi tensile strength. Also, the present invention shows improved tape extrusion performance versus a comparable TPU only composition, indicating improved melt rheology/fabrication capability for extrusion applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.