CN109679059B - 一种聚氨酯-聚脲水分散体及其制备方法与应用 - Google Patents
一种聚氨酯-聚脲水分散体及其制备方法与应用 Download PDFInfo
- Publication number
- CN109679059B CN109679059B CN201811510154.XA CN201811510154A CN109679059B CN 109679059 B CN109679059 B CN 109679059B CN 201811510154 A CN201811510154 A CN 201811510154A CN 109679059 B CN109679059 B CN 109679059B
- Authority
- CN
- China
- Prior art keywords
- component
- aqueous polyurethane
- polyurea
- dispersion according
- polyurethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6614—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6618—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3855—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4244—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups
- C08G18/4247—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids
- C08G18/425—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids the polyols containing one or two ether groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
- C08G18/4277—Caprolactone and/or substituted caprolactone
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/146—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes characterised by the macromolecular diols used
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/147—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes characterised by the isocyanates used
- D06N3/148—(cyclo)aliphatic polyisocyanates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
Claims (26)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811510154.XA CN109679059B (zh) | 2018-12-11 | 2018-12-11 | 一种聚氨酯-聚脲水分散体及其制备方法与应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811510154.XA CN109679059B (zh) | 2018-12-11 | 2018-12-11 | 一种聚氨酯-聚脲水分散体及其制备方法与应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109679059A CN109679059A (zh) | 2019-04-26 |
CN109679059B true CN109679059B (zh) | 2021-07-23 |
Family
ID=66186641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811510154.XA Active CN109679059B (zh) | 2018-12-11 | 2018-12-11 | 一种聚氨酯-聚脲水分散体及其制备方法与应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109679059B (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112778487A (zh) * | 2019-11-05 | 2021-05-11 | 万华化学集团股份有限公司 | 一种聚氨酯或聚氨酯-脲的水分散体及其制备方法和应用 |
EP4026864A4 (en) | 2019-11-05 | 2023-05-31 | Wanhua Chemical Group Co., Ltd. | AQUEOUS DISPERSION COMPRISING POLYURETHANE OR POLYURETHANE UREA, METHOD FOR THE PREPARATION AND USE THEREOF |
CN110818873B (zh) * | 2019-11-20 | 2022-07-12 | 万华化学集团股份有限公司 | 一种水性聚氨酯树脂及其制备方法和应用 |
CN111019087B (zh) * | 2019-12-23 | 2022-01-07 | 万华化学集团股份有限公司 | 一种合成革用聚氨酯-聚脲水分散体及其制备方法和应用 |
CN111961177B (zh) * | 2020-08-24 | 2022-04-19 | 万华化学集团股份有限公司 | 一种高弹性聚氨酯-聚脲水分散体及其制备方法,以及一种印花浆 |
CN114409864B (zh) * | 2020-10-28 | 2023-12-19 | 万华化学集团股份有限公司 | 聚氨酯或聚氨酯-脲的水分散体及其制备方法和用途 |
CN114605905B (zh) * | 2022-04-07 | 2022-11-18 | 武汉旭成新材料有限公司 | 一种非极性聚合物表面极性处理剂及其制备方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4522986A (en) * | 1984-07-20 | 1985-06-11 | General Motors Corporation | Urea flow control agents for urethane paint prepared by reaction of an isocyanate-terminated prepolymer and an ethanolamine |
JPH0543647A (ja) * | 1990-09-21 | 1993-02-23 | Asahi Chem Ind Co Ltd | 人工皮革用ポリウレタン組成物 |
CN101456942A (zh) * | 2008-12-30 | 2009-06-17 | 南京工业大学 | 一种水性聚氨酯和含水性聚氨酯胶粘剂及其应用 |
CN102690404A (zh) * | 2011-02-18 | 2012-09-26 | 中国石油化工股份有限公司 | 一种非离子水性聚氨酯分散体及其制备方法 |
CN103703041A (zh) * | 2011-04-04 | 2014-04-02 | 拜耳知识产权有限责任公司 | 聚氨酯脲分散体 |
CN103975034A (zh) * | 2011-12-09 | 2014-08-06 | 巴斯夫欧洲公司 | 水性聚氨酯分散体用于复合膜层压的用途 |
US9005762B2 (en) * | 2011-12-09 | 2015-04-14 | Basf Se | Use of aqueous polyurethane dispersions for composite foil lamination |
CN108047414A (zh) * | 2017-12-29 | 2018-05-18 | 浙江华峰合成树脂有限公司 | 无溶剂革用聚氨酯树脂及制备方法和应用 |
-
2018
- 2018-12-11 CN CN201811510154.XA patent/CN109679059B/zh active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4522986A (en) * | 1984-07-20 | 1985-06-11 | General Motors Corporation | Urea flow control agents for urethane paint prepared by reaction of an isocyanate-terminated prepolymer and an ethanolamine |
JPH0543647A (ja) * | 1990-09-21 | 1993-02-23 | Asahi Chem Ind Co Ltd | 人工皮革用ポリウレタン組成物 |
CN101456942A (zh) * | 2008-12-30 | 2009-06-17 | 南京工业大学 | 一种水性聚氨酯和含水性聚氨酯胶粘剂及其应用 |
CN102690404A (zh) * | 2011-02-18 | 2012-09-26 | 中国石油化工股份有限公司 | 一种非离子水性聚氨酯分散体及其制备方法 |
CN103703041A (zh) * | 2011-04-04 | 2014-04-02 | 拜耳知识产权有限责任公司 | 聚氨酯脲分散体 |
CN103975034A (zh) * | 2011-12-09 | 2014-08-06 | 巴斯夫欧洲公司 | 水性聚氨酯分散体用于复合膜层压的用途 |
US9005762B2 (en) * | 2011-12-09 | 2015-04-14 | Basf Se | Use of aqueous polyurethane dispersions for composite foil lamination |
CN108047414A (zh) * | 2017-12-29 | 2018-05-18 | 浙江华峰合成树脂有限公司 | 无溶剂革用聚氨酯树脂及制备方法和应用 |
Non-Patent Citations (1)
Title |
---|
JM 系列单组分聚氨酯密封剂的研制;曲少伟 等;《化学推进剂与高分子材料》;20031231;第19卷(第1期);第30-31页,第31页2.6触变剂选用 * |
Also Published As
Publication number | Publication date |
---|---|
CN109679059A (zh) | 2019-04-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109679059B (zh) | 一种聚氨酯-聚脲水分散体及其制备方法与应用 | |
CN107955126B (zh) | 一种聚氨酯-聚脲多元醇的水分散体及其制备方法 | |
US6635723B1 (en) | Solvent-free polyurethane dispersion | |
EP2271686B1 (de) | Wässrige Polyurethanlösungen | |
US6855764B2 (en) | Method for producing self- emulsifiable aqueous polyurethane resins having improved characteristics | |
US20060128885A1 (en) | High-solids polyurethane-polyurea dispersions | |
KR20140012659A (ko) | 수성 폴리우레탄 수지 분산체 및 그 사용 | |
CN111019079B (zh) | 一种聚氨酯或聚氨酯脲的水分散体及其制备方法和应用 | |
US8779056B2 (en) | Aqueous polyurethane resin dispersion | |
US20070049684A1 (en) | Polyurethane-polyurea dispersions and their use as coating compositions | |
KR20060134854A (ko) | 폴리카르보네이트 폴리올 기재 중합체 블렌드 | |
DE102006002156A1 (de) | Polyurethan-Polyharnstoff-Dispersionen auf Basis von Polyether-Polycarbonat-Polyolen | |
KR20140020987A (ko) | 폴리우레탄 우레아 분산액 | |
KR101728568B1 (ko) | 폴리(thf)-기재 폴리우레탄 분산액 | |
KR20140009337A (ko) | 수성 폴리우레탄 수지 분산체 및 그 사용 | |
EP2558511A1 (en) | Aqueous polyurethane-polyurea dispersions | |
CN102858847B (zh) | 聚氧亚烷基二醇和聚氨酯树脂及含有这些的涂布剂 | |
JP5354856B2 (ja) | 水性ポリウレタン樹脂、水性ポリウレタン樹脂の製造方法およびフィルム | |
CN109476812B (zh) | 低硬度聚氨酯分散体 | |
US20080182946A1 (en) | Nanourea dispersions | |
KR20070101149A (ko) | 개선된 저장 안정성을 갖는 수성 폴리우레탄 분산액 | |
JP2003213206A (ja) | 塗料組成物 | |
CN112442164B (zh) | 聚氨酯或聚氨酯脲的水分散体、其制备方法和用途 | |
JP2007327044A (ja) | 二峰性粒度分布を有する水性分散液 | |
JP2005060690A (ja) | ポリウレタン樹脂、水性ポリウレタン樹脂、親水性改質剤、透湿性樹脂およびポリウレタン樹脂の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20200925 Address after: 264006 No. 17 Tianshan Road, Yantai economic and Technological Development Zone, Shandong Applicant after: Wanhua Chemical Group Co.,Ltd. Applicant after: Wanhua chemical (Ningbo) Co.,Ltd. Address before: 264002 No. 17 Tianshan Road, Yantai economic and Technological Development Zone, Shandong Applicant before: Wanhua Chemical Group Co.,Ltd. Applicant before: Wanhua chemical (Ningbo) Co.,Ltd. Applicant before: SHANGHAI WANHUA KEJU CHEMICAL TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
TA01 | Transfer of patent application right | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Polyurethane polyurea aqueous dispersion and its preparation method and Application Effective date of registration: 20211123 Granted publication date: 20210723 Pledgee: Bank of China Limited by Share Ltd. Yantai branch Pledgor: Wanhua Chemical Group Co.,Ltd. Registration number: Y2021980013026 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220622 Granted publication date: 20210723 Pledgee: Bank of China Limited by Share Ltd. Yantai branch Pledgor: Wanhua Chemical Group Co.,Ltd. Registration number: Y2021980013026 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right |