Syntactic polyurethane elastomers having distinct morphology for use in subsea pipeline insulation
US10208178B2 · kind B2 · utility
1Cited by
3References
12Claims
0Family size
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Key dates
| Filing date | Oct 21, 2014 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Sep 19, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Syntactic polyurethane elastomers are made using a non-mercury catalyst. The elastomer is made from a reaction mixture containing a polyether polyol, a chain extender, a polyisocyanate and microspheres. The elastomer is characterized morphologically by the presence of small discrete morphological domains 0.1 to 3 μm in diameter, and the substantial absence of discrete morphological domains 5 to 30 μm in diameter. The elastomer adheres well to itself, which makes it very useful as thermal insulation for pipelines and other structures that have a complex geometry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.