Syntactic polyurethane elastomers for use in subsea pipeline insulation
US10329371B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Oct 21, 2014 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Oct 21, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L59/143
- 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 polymer polyol which has a liquid polyether polyol as a continuous phase and polymer particles dispersed in the liquid polyether polyol, a chain extender, a polyisocyanate and microspheres. 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.