Halogen-free, flame retardant TPU composite
US8865808B2 · kind B2 · utility
1Cited by
9References
10Claims
0Family size
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Key dates
| Filing date | Jun 3, 2010 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Nov 19, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/014
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Halogen-free TPU compositions comprise in weight percent based on the weight of the composition: A. 1 to 99% thermoplastic polyurethane (TPU), B. 1 to 50% tris(2-butoxyethyl)phosphate (TBEP), C. 1 to 70% metal hydrate, and D. 1 to 70% organic phosphate ester other than tris(2-butoxyethyl)phosphate. These compositions exhibit better smoke suppression as compared with conventional organic phosphate flame retardant TPU compositions such as those based on resorcinol bis(diphenyl phosphate) (RDP) and bisphenol-A bis(diphenyl phosphate) (BPADP) in the absence of TBEP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.