Wanhua Chemical (Ningbo) Co., Ltd.

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Ningbo, Zhejiang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Storage-stable polyisocyanate composition and preparation method
- Patent number 12,304,993
- Issue date May 20, 2025
- WANHUA CHEMICAL GROUP CO., LTD
- Zhicheng Zhu
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Aqueous dispersion comprising polyurethane or polyurethane-urea, pr...
- Patent number 12,227,610
- Issue date Feb 18, 2025
- WANHUA CHEMICAL GROUP CO., LTD
- Zefeng Song
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Catalyst for preparing phosgene and preparation method therefor, an...
- Patent number 12,226,761
- Issue date Feb 18, 2025
- Wanhua Chemical (Ningbo) Co., Ltd.
- Chao Dong
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for preparing reactive sealant resin
- Patent number 12,122,876
- Issue date Oct 22, 2024
- Wanhua Chemical Group Co., Ltd.
- Changxun Ju
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Preparation method for polyurethane optical resin and applications...
- Patent number 12,024,582
- Issue date Jul 2, 2024
- WANHUA CHEMICAL GROUP CO., LTD.
- Jianfeng Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Aqueous polyurethane functional mask substrate and application thereof
- Patent number 11,964,032
- Issue date Apr 23, 2024
- WANHUA CHEMICAL GROUP CO., LTD
- Xiaoxiao Ji
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method for preparing isocyanate in gaseous phase
- Patent number 11,814,339
- Issue date Nov 14, 2023
- WANHUA CHEMICAL GROUP CO., LTD
- Weiqi Hua
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Ionic aqueous epoxy curing agent, preparation method therefor and u...
- Patent number 11,597,796
- Issue date Mar 7, 2023
- WANHUA CHEMICAL GROUP CO., LTD
- Xiao Wang
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Polyurethane or polyurethane-urea aqueous dispersion, preparation m...
- Patent number 11,118,000
- Issue date Sep 14, 2021
- Wanhua Chemical Group Co., Ltd.
- Xueshun Ji
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Composite catalyst, preparation process thereof, and process for ca...
- Patent number 10,369,559
- Issue date Aug 6, 2019
- WANHUA CHEMICAL GROUP CO., LTD
- Lei Qin
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for treating waste saline water produced in production proce...
- Patent number 9,802,848
- Issue date Oct 31, 2017
- Wanhua Chemical (Ningbo) Co., Ltd.
- Hongke Zhang
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Viscoelastic sound-absorbing polyurethane foam and preparation meth...
- Patent number 9,790,314
- Issue date Oct 17, 2017
- Wanhua Chemical (Beijing) Co., Ltd.
- Jun Zhao
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing TDI isocyanurate
- Patent number 9,593,089
- Issue date Mar 14, 2017
- Wanhua Chemical (Beijing) Co., Ltd.
- Xiao Zhang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst for preparing phosgene and method for preparing phosgene u...
- Patent number 9,399,582
- Issue date Jul 26, 2016
- Wanhua Chemical (Ningbo) Co., Ltd.
- Bin Chen
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
3-aminomethyl-3, 5, 5-trimethyl cyclohexylamine preparation method
- Patent number 8,829,245
- Issue date Sep 9, 2014
- Wanhua Chemical Group Co., Ltd.
- Changsheng Chen
- C07 - ORGANIC CHEMISTRY
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 Applicationslast 30 patents

Information Patent Application
ISOCYANURATE-CONTAINING POLYISOCYANATE COMPOSITION WITH STABLE CHRO...
- Publication number 20240034881
- Publication date Feb 1, 2024
- WANHUA CHEMICAL GROUP CO., LTD.
- Nuancheng WANG
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYISOCYANATE COMPOSITION, PREPARATION METHOD THEREFOR AND APPLICA...
- Publication number 20230374194
- Publication date Nov 23, 2023
- WANHUA CHEMICAL GROUP CO., LTD.
- Yong YU
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
STORAGE-STABLE POLYISOCYANATE COMPOSITION AND PREPARATION METHOD TH...
- Publication number 20230272151
- Publication date Aug 31, 2023
- WANHUA CHEMICAL GROUP CO., LTD.
- Bin SHI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PRODUCTION METHOD FOR PREPARING POLYLACTIC ACID BY MEANS OF RING-OP...
- Publication number 20230167230
- Publication date Jun 1, 2023
- WANHUA CHEMICAL (SICHUAN) CO., LTD.
- Shuangyi SUN
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
STORAGE-STABLE POLYISOCYANATE COMPOSITION AND PREPARATION METHOD
- Publication number 20230132686
- Publication date May 4, 2023
- WANHUA CHEMICAL GROUP CO., LTD.
- Zhicheng ZHU
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
AQUEOUS DISPERSION COMPRISING POLYURETHANE OR POLYURETHANE-UREA, PR...
- Publication number 20220363804
- Publication date Nov 17, 2022
- WANHUA CHEMICAL GROUP CO., LTD.
- Zefeng SONG
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CATALYST FOR PREPARING PHOSGENE AND PREPARATION METHOD THEREFOR, AN...
- Publication number 20220266237
- Publication date Aug 25, 2022
- Wanhua Chemical (Ningbo) Co., Ltd.
- Chao DONG
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PREPARATION METHOD FOR POLYURETHANE OPTICAL RESIN AND APPLICATIONS...
- Publication number 20220227915
- Publication date Jul 21, 2022
- WANHUA CHEMICAL GROUP CO., LTD.
- Jianfeng LI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
METHOD FOR PREPARING REACTIVE SEALANT RESIN
- Publication number 20220056209
- Publication date Feb 24, 2022
- WANHUA CHEMICAL GROUP CO., LTD.
- Changxun Ju
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PREPARATION METHOD FOR EMULSIFIER, EMULSIFIER, AQUEOUS EPOXY RESIN...
- Publication number 20220055000
- Publication date Feb 24, 2022
- WANHUA CHEMICAL GROUP CO., LTD.
- Xueshun Ji
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
IONIC AQUEOUS EPOXY CURING AGENT, PREPARATION METHOD THEREFOR AND U...
- Publication number 20220033569
- Publication date Feb 3, 2022
- WANHUA CHEMICAL GROUP CO., LTD.
- Xiao WANG
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
METHOD FOR PREPARING ISOCYANATE IN GASEOUS PHASE
- Publication number 20220024863
- Publication date Jan 27, 2022
- WANHUA CHEMICAL GROUP CO., LTD.
- Weiqi HUA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
AQUEOUS POLYURETHANE FUNCTIONAL MASK SUBSTRATE AND APPLICATION THEREOF
- Publication number 20210353510
- Publication date Nov 18, 2021
- WANHUA CHEMICAL GROUP CO., LTD.
- Xiaoxiao JI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYURETHANE OR POLYURETHANE-UREA AQUEOUS DISPERSION, PREPARATION M...
- Publication number 20190322793
- Publication date Oct 24, 2019
- WANHUA CHEMICAL GROUP CO., LTD.
- Xueshun JI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
METHOD FOR PREPARING CATALYST USED FOR PREPARING CHLORINE, CATALYST...
- Publication number 20170001178
- Publication date Jan 5, 2017
- WANHUA CHEMICAL GROUP CO., LTD.
- Yinchuan Lou
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
POLYISOCYANATE MODIFIED WITH SULPHAMIC ACID, PREPARATION METHOD THE...
- Publication number 20160280836
- Publication date Sep 29, 2016
- WANHUA CHEMICAL GROUP CO., LTD.
- Xueshun Ji
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
CATALYST USED FOR RESOURCE UTILIZATION OF A FIXED BED ANILINE DISTI...
- Publication number 20160207876
- Publication date Jul 21, 2016
- WANHUA CHEMICAL GROUP CO., LTD.
- Hua Mei
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR PREPARING BRANCHED POLYCARBONATE WITH CONTINUOUS TWO-PHA...
- Publication number 20160200864
- Publication date Jul 14, 2016
- WANHUA CHEMICAL GROUP CO., LTD.
- Lei Zhang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESS FOR PREPARING ISOCYANATE HOMOPOLYMERS CONTAINING URETDIONE...
- Publication number 20160159964
- Publication date Jun 9, 2016
- Wanhua Chemical (Ningbo) Co., Ltd.
- Lidong SUN
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CATALYST FOR PREPARING PHOSGENE AND METHOD FOR PREPARING PHOSGENE U...
- Publication number 20160137511
- Publication date May 19, 2016
- WANHUA CHEMICAL GROUP CO., LTD.
- Bin CHEN
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR PREPARING DIAMINO-DICYCLOHEXYL METHANE
- Publication number 20160068472
- Publication date Mar 10, 2016
- WANHUA CHEMICAL (NINGBO) CO., LTD.
- Xin LI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR PREPARING TDI ISOCYANURATE
- Publication number 20160016917
- Publication date Jan 21, 2016
- Wanhua Chemical (Beijing) Co., Ltd.
- Xiao Zhang
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method For Preparing 3-Aminomethyl-3,5,5-Trimethyl Cyclohexylamine
- Publication number 20150315133
- Publication date Nov 5, 2015
- WANHUA CHEMICAL GROUP CO., LTD.
- Changsheng Chen
- C07 - ORGANIC CHEMISTRY
Information Patent Application
VISCOELASTIC SOUND-ABSORBING POLYURETHANE FOAM AND PREPARATION METH...
- Publication number 20150284500
- Publication date Oct 8, 2015
- Wanhua Chemical (Beijing) Co., Ltd.
- Jun Zhao
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
COMPOSITE CATALYST, PREPARATION PROCESS THEREOF, AND PROCESS FOR CA...
- Publication number 20150231623
- Publication date Aug 20, 2015
- WANHUA CHEMICAL GROUP CO., LTD.
- Lei Qin
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Process of Producing Chlorine Gas by Catalytic Oxidation of Hydroge...
- Publication number 20150037243
- Publication date Feb 5, 2015
- WANHUA CHEMICAL (NINGBO) CO., LTD.
- Jiansheng Ding
- C01 - INORGANIC CHEMISTRY
Information Patent Application
3-AMINOMETHYL-3, 5, 5-TRIMETHYL CYCLOHEXYLAMINE PREPARATION METHOD
- Publication number 20140142341
- Publication date May 22, 2014
- Wanhua Chemical (Ningbo) Co., Ltd.
- Changsheng Chen
- C07 - ORGANIC CHEMISTRY

Wanhua Chemical (Ningbo) Co., Ltd.

Organization

Patents Grantslast 30 patents

Storage-stable polyisocyanate composition and preparation method

Aqueous dispersion comprising polyurethane or polyurethane-urea, pr...

Catalyst for preparing phosgene and preparation method therefor, an...

Method for preparing reactive sealant resin

Preparation method for polyurethane optical resin and applications...

Aqueous polyurethane functional mask substrate and application thereof

Method for preparing isocyanate in gaseous phase

Ionic aqueous epoxy curing agent, preparation method therefor and u...

Polyurethane or polyurethane-urea aqueous dispersion, preparation m...

Composite catalyst, preparation process thereof, and process for ca...

Method for treating waste saline water produced in production proce...

Viscoelastic sound-absorbing polyurethane foam and preparation meth...

Process for preparing TDI isocyanurate

Catalyst for preparing phosgene and method for preparing phosgene u...

3-aminomethyl-3, 5, 5-trimethyl cyclohexylamine preparation method

Method for intermittently producing 4,4′-diaminodicyclohexylmethane...

Patents Applicationslast 30 patents

ISOCYANURATE-CONTAINING POLYISOCYANATE COMPOSITION WITH STABLE CHRO...

POLYISOCYANATE COMPOSITION, PREPARATION METHOD THEREFOR AND APPLICA...

STORAGE-STABLE POLYISOCYANATE COMPOSITION AND PREPARATION METHOD TH...

PRODUCTION METHOD FOR PREPARING POLYLACTIC ACID BY MEANS OF RING-OP...

STORAGE-STABLE POLYISOCYANATE COMPOSITION AND PREPARATION METHOD

AQUEOUS DISPERSION COMPRISING POLYURETHANE OR POLYURETHANE-UREA, PR...

CATALYST FOR PREPARING PHOSGENE AND PREPARATION METHOD THEREFOR, AN...

PREPARATION METHOD FOR POLYURETHANE OPTICAL RESIN AND APPLICATIONS...

METHOD FOR PREPARING REACTIVE SEALANT RESIN

PREPARATION METHOD FOR EMULSIFIER, EMULSIFIER, AQUEOUS EPOXY RESIN...

IONIC AQUEOUS EPOXY CURING AGENT, PREPARATION METHOD THEREFOR AND U...

METHOD FOR PREPARING ISOCYANATE IN GASEOUS PHASE

AQUEOUS POLYURETHANE FUNCTIONAL MASK SUBSTRATE AND APPLICATION THEREOF

POLYURETHANE OR POLYURETHANE-UREA AQUEOUS DISPERSION, PREPARATION M...

METHOD FOR PREPARING CATALYST USED FOR PREPARING CHLORINE, CATALYST...

POLYISOCYANATE MODIFIED WITH SULPHAMIC ACID, PREPARATION METHOD THE...

CATALYST USED FOR RESOURCE UTILIZATION OF A FIXED BED ANILINE DISTI...

METHOD FOR PREPARING BRANCHED POLYCARBONATE WITH CONTINUOUS TWO-PHA...

PROCESS FOR PREPARING ISOCYANATE HOMOPOLYMERS CONTAINING URETDIONE...

CATALYST FOR PREPARING PHOSGENE AND METHOD FOR PREPARING PHOSGENE U...

METHOD FOR PREPARING DIAMINO-DICYCLOHEXYL METHANE

PROCESS FOR PREPARING TDI ISOCYANURATE

Method For Preparing 3-Aminomethyl-3,5,5-Trimethyl Cyclohexylamine

VISCOELASTIC SOUND-ABSORBING POLYURETHANE FOAM AND PREPARATION METH...

COMPOSITE CATALYST, PREPARATION PROCESS THEREOF, AND PROCESS FOR CA...

Process of Producing Chlorine Gas by Catalytic Oxidation of Hydroge...

3-AMINOMETHYL-3, 5, 5-TRIMETHYL CYCLOHEXYLAMINE PREPARATION METHOD

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