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Yantai, CN
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Patents Grants
last 30 patents
Information
Patent Grant
No-added formaldehyde binder for composite wood product and the com...
Patent number
11,806,892
Issue date
Nov 7, 2023
Wanhua Chemical Group Co., Ltd.
Song Tu
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Grant
Emulsifiable isocyanate composition and preparation method and use...
Patent number
10,787,593
Issue date
Sep 29, 2020
WANHUA CHEMICAL GROUP CO., LTD
Wangshun Qi
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method for intermittently producing 4,4′-diaminodicyclohexylmethane...
Patent number
8,759,591
Issue date
Jun 24, 2014
Wanhua Chemical Group Co., Ltd.
Shuang Hu
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
No-Added Formaldehyde Binder For Composite Wood Product And the Com...
Publication number
20200198176
Publication date
Jun 25, 2020
WANHUA CHEMICAL GROUP CO., LTD.
Song Tu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
EMULSIFIABLE ISOCYANATE COMPOSITION AND PREPARATION METHOD AND USE...
Publication number
20180282593
Publication date
Oct 4, 2018
WANHUA CHEMICAL GROUP CO., LTD.
Wangshun QI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Method for Intermittently Producing 4,4'-Diaminodicyclohexylmethane...
Publication number
20120323041
Publication date
Dec 20, 2012
NINGBO WANHUA POLYURETHANES CO., LTD.
Shuang Hu
C07 - ORGANIC CHEMISTRY