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Yantai, CN
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Patents Grants
last 30 patents
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
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
Polyisocyanate modified with sulphamic acid, preparation method the...
Patent number
9,975,985
Issue date
May 22, 2018
Wanhua Chemical Group Co., Ltd.
Xueshun Ji
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
SULFONIC ACID-MODIFIED POLYISOCYANATE AND PREPARATION METHOD THEREFOR
Publication number
20230257344
Publication date
Aug 17, 2023
WANHUA CHEMICAL GROUP CO., LTD.
Xundi YIN
C07 - ORGANIC CHEMISTRY
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
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
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
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...