Spandex prepared with hindered diisocyanates
US6063892A · kind A · utility
1Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1999 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Oct 5, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S528/906
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polurethaneaureas prepared with 2,2-bis(4-isocyanatophenyl)propane or 1,4-bis(4-isocyanato-alpha,alpha-dimethylbenzyl)benzene, and spandex spun from such polyurethaneureas, are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.