Low haze thermoplastic polyurethane using mixture of chain extenders including 1,3- and 1,4-cyclohexanedimethanol
US8242228B2 · kind B2 · utility
1Cited by
3References
18Claims
0Family size
Inventors
Key dates
| Filing date | Dec 3, 2007 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Apr 18, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2120/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is a low haze thermoplastic polyurethane (TPU) prepared from a chain extender mixture that includes an acyclic diol and a mixture of 1,3- and 1,4-cyclohexanedimethanol. The TPU elastomers exhibit good optical clarity, particularly when formed into relatively thick injection molded parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.