Isocyanurate-containing polyisocyanate composition with stable chromaticity, and preparation method thereof
US-12516191-B2 · Jan 6, 2026 · US
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Wang Nuancheng patents
Wang Nuancheng is listed as an inventor on 7 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Wang Nuancheng |
| Total patents | 7 |
| First publication | Dec 3, 2020 |
| Latest publication | Jan 6, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Storage-stable polyisocyanate composition and preparation method
US-12304993-B2 · May 20, 2025 · US
Isocyanurate-containing polyisocyanate composition with stable chromaticity, and preparation method thereof
US-2024034881-A1 · Feb 1, 2024 · US
Storage-stable polyisocyanate composition and preparation method therefor
US-2023272151-A1 · Aug 31, 2023 · US
Storage-stable polyisocyanate composition and preparation method
US-2023132686-A1 · May 4, 2023 · US
Imine-type quaternary ammonium salt catalyst, preparation method thereof and use thereof for preparation of polyisocyanate composition
US-11059772-B2 · Jul 13, 2021 · US
Imine-type quaternary ammonium salt catalyst, preparation method thereof and use thereof for preparation of polyisocyanate composition
US-2020377445-A1 · Dec 3, 2020 · US
Recent patents
Latest publications not already listed above.
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Wanhua Chemical Group Co Ltd | 7 |
| Wanhua Chemical Ningbo Co Ltd | 5 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C08G18/3206 | 5 |
| C08G18/792 | 4 |
| C08G18/73 | 3 |
| C08G18/8016 | 3 |
| C08G18/168 | 3 |