Guohua Lu

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Hangzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Foamable copolymer resin and a method for preparing the same
- Patent number 6,770,681
- Issue date Aug 3, 2004
- Hangzhou Yuhang Yatai Chemical Industries Co., Ltd.
- Suoyun Tang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
EXPANDABLE COPOLYMER RESIN USED FOR MANUFACTURING LOST FOAM CASTING...
- Publication number 20200368807
- Publication date Nov 26, 2020
- HANGZHOU YUHANG YATAI CHEMICAL INDUSTRIES CO., LTD.
- Suoyun Tang
- B22 - CASTING POWDER METALLURGY
Information Patent Application
SPECIAL MODIFIED EXPANDABLE POLYSTYRENE COPOLYMER PARTICLE FOR LOST...
- Publication number 20160326332
- Publication date Nov 10, 2016
- ZHEJIANG CASTCHEM NEW MATERIAL CO.,LTD
- Jianwei Zou
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Novel foamable copolymer resin and a method for preparing the same
- Publication number 20030195265
- Publication date Oct 16, 2003
- HANGZHOU YUHANG YATAI CHEMICAL INDUSTRIES CO., LTD.
- Suoyun Tang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...