Polyurethane elastomers for use in subsea pipeline insulation
US9371410B2 · kind B2 · utility
0Cited by
8References
10Claims
0Family size
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Key dates
| Filing date | Sep 16, 2013 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | May 21, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49888
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyurethane systems that cure similarly to systems based on mercury catalysts contain 1,4-butanediol and a zinc carboxylate catalyst. These systems cure and develop green strength similarly to systems based on mercury catalysts. These systems are especially useful in making insulated pipe joints for subsea pipeline installations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.