Viscoelastic sound-absorbing polyurethane foam and preparation method thereof
US-9790314-B2 · Oct 17, 2017 · US
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Wanhua Chemical (Beijing) Co Ltd patents in 2017
Wanhua Chemical (Beijing) Co Ltd was listed as an assignee on 2 patent publications in 2017.
| Metric | Value |
|---|---|
| Company | Wanhua Chemical (Beijing) Co Ltd |
| Year | 2017 |
| Patents | 2 |
Patents
Representative publications for Wanhua Chemical (Beijing) Co Ltd in 2017.
Process for preparing TDI isocyanurate
US-9593089-B2 · Mar 14, 2017 · US
Top CPC classifications
Most common classification codes for Wanhua Chemical (Beijing) Co Ltd in 2017.
| CPC | Patents |
|---|---|
| C07D251/34 | 1 |
| C08G18/022 | 1 |
| C08G18/092 | 1 |
| C08G18/14 | 1 |
| C08G18/18 | 1 |
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