Yongjian GUAN

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Patents Grantslast 30 patents

Information Patent Grant
Application of Mannich base in flame-retardant polyurethane material
- Patent number 11,440,989
- Issue date Sep 13, 2022
- Jiahua Science & Technology Development (Shanghai) Ltd.
- Yongjian Guan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Flame-retardant polyether polyol as well as preparation method and...
- Patent number 11,401,375
- Issue date Aug 2, 2022
- Jiahua Science & Technology Development (Shanghai) Ltd.
- Yongjian Guan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Composition capable of substituting use of styrene-acrylonitrile co...
- Patent number 11,261,287
- Issue date Mar 1, 2022
- Jiahua Science & Technology Development (Shanghai) Ltd.
- Yongjian Guan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
APPLICATION OF MANNICH BASE IN FLAME-RETARDANT POLYURETHANE MATERIAL
- Publication number 20200283562
- Publication date Sep 10, 2020
- Jiahua Science & Technology Development (Shanghai) Ltd.
- Yongjian GUAN
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
FLAME-RETARDANT POLYETHER POLYOL AS WELL AS PREPARATION METHOD AND...
- Publication number 20200283573
- Publication date Sep 10, 2020
- Jiahua Science & Technology Development (Shanghai) Ltd.
- Yongjian GUAN
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
COMPOSITION CAPABLE OF SUBSTITUTING USE OF STYRENE-ACRYLONITRILE CO...
- Publication number 20190292301
- Publication date Sep 26, 2019
- Jiahua Science & Technology Development (Shanghai) Ltd.
- Yongjian GUAN
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...