CN106272845A - 高密度的复合地板基材的制备方法 - Google Patents
高密度的复合地板基材的制备方法 Download PDFInfo
- Publication number
- CN106272845A CN106272845A CN201610670278.9A CN201610670278A CN106272845A CN 106272845 A CN106272845 A CN 106272845A CN 201610670278 A CN201610670278 A CN 201610670278A CN 106272845 A CN106272845 A CN 106272845A
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- Prior art keywords
- raw material
- wood
- parts
- temperature
- pretreated
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 86
- 239000000758 substrate Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 116
- 239000002023 wood Substances 0.000 claims abstract description 78
- 239000000835 fiber Substances 0.000 claims abstract description 54
- 229920002522 Wood fibre Polymers 0.000 claims abstract description 38
- 239000002025 wood fiber Substances 0.000 claims abstract description 38
- 239000000203 mixture Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000007731 hot pressing Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 238000004781 supercooling Methods 0.000 claims abstract description 6
- 238000003958 fumigation Methods 0.000 claims description 43
- 239000007788 liquid Substances 0.000 claims description 33
- 238000003756 stirring Methods 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 25
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 20
- 239000000706 filtrate Substances 0.000 claims description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 19
- 239000000853 adhesive Substances 0.000 claims description 16
- 230000001070 adhesive effect Effects 0.000 claims description 16
- 238000010025 steaming Methods 0.000 claims description 16
- 239000001993 wax Substances 0.000 claims description 16
- 229920006395 saturated elastomer Polymers 0.000 claims description 15
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 12
- PBLNBZIONSLZBU-UHFFFAOYSA-N 1-bromododecane Chemical compound CCCCCCCCCCCCBr PBLNBZIONSLZBU-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000376 reactant Substances 0.000 claims description 10
- 239000007799 cork Substances 0.000 claims description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 229910052717 sulfur Inorganic materials 0.000 claims description 8
- 239000011593 sulfur Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000000740 bleeding effect Effects 0.000 claims description 6
- 235000019504 cigarettes Nutrition 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 235000003826 Artemisia Nutrition 0.000 claims description 5
- 235000003261 Artemisia vulgaris Nutrition 0.000 claims description 5
- 241001634967 Trillium tschonoskii Species 0.000 claims description 5
- 239000003945 anionic surfactant Substances 0.000 claims description 5
- 235000009052 artemisia Nutrition 0.000 claims description 5
- 239000007957 coemulsifier Substances 0.000 claims description 5
- 238000010411 cooking Methods 0.000 claims description 5
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 5
- 239000004200 microcrystalline wax Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000012188 paraffin wax Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 240000002234 Allium sativum Species 0.000 claims description 4
- 235000004611 garlic Nutrition 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 241000196222 Codium fragile Species 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- -1 cyanurotriamide modified urea Chemical class 0.000 claims description 2
- 239000012948 isocyanate Substances 0.000 claims description 2
- 150000002513 isocyanates Chemical class 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 241000251468 Actinopterygii Species 0.000 claims 1
- 240000006891 Artemisia vulgaris Species 0.000 claims 1
- 244000025254 Cannabis sativa Species 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- 229920001807 Urea-formaldehyde Polymers 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 230000003213 activating effect Effects 0.000 claims 1
- 150000001335 aliphatic alkanes Chemical class 0.000 claims 1
- 125000001246 bromo group Chemical group Br* 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- 235000020995 raw meat Nutrition 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000004513 sizing Methods 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- 244000030166 artemisia Species 0.000 description 4
- 210000000481 breast Anatomy 0.000 description 4
- 238000002203 pretreatment Methods 0.000 description 4
- UAJTZZNRJCKXJN-UHFFFAOYSA-M sodium;2-dodecoxy-2-oxoethanesulfonate Chemical compound [Na+].CCCCCCCCCCCCOC(=O)CS([O-])(=O)=O UAJTZZNRJCKXJN-UHFFFAOYSA-M 0.000 description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 239000002736 nonionic surfactant Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000019256 formaldehyde Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 210000000795 conjunctiva Anatomy 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 239000005645 nematicide Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/50—Mixtures of different organic impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2200/00—Wooden materials to be treated
- B27K2200/15—Pretreated particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/20—Removing fungi, molds or insects
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
Description
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610670278.9A CN106272845B (zh) | 2016-08-12 | 2016-08-12 | 高密度的复合地板基材的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610670278.9A CN106272845B (zh) | 2016-08-12 | 2016-08-12 | 高密度的复合地板基材的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106272845A true CN106272845A (zh) | 2017-01-04 |
CN106272845B CN106272845B (zh) | 2018-06-08 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201610670278.9A Active CN106272845B (zh) | 2016-08-12 | 2016-08-12 | 高密度的复合地板基材的制备方法 |
Country Status (1)
Country | Link |
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CN (1) | CN106272845B (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107379168A (zh) * | 2017-08-02 | 2017-11-24 | 湖南工程学院 | 杉木家具板材加工装置 |
CN109551591A (zh) * | 2018-12-18 | 2019-04-02 | 西南林业大学 | 一种圆竹防护剂及圆竹防护方法 |
CN110815480A (zh) * | 2019-11-27 | 2020-02-21 | 浙江柏尔木业有限公司 | 一种应用于实木地板的注蜡工艺 |
CN112497556A (zh) * | 2020-10-28 | 2021-03-16 | 泰州诺盟新材料科技有限公司 | 一种聚丙烯复合材料的制造方法 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07164408A (ja) * | 1993-12-13 | 1995-06-27 | Daiken Trade & Ind Co Ltd | 木質化粧板の製造方法 |
JPH1170800A (ja) * | 1997-08-29 | 1999-03-16 | Dainippon Printing Co Ltd | 化粧材 |
JP2000271903A (ja) * | 1999-03-24 | 2000-10-03 | Nippon Paper Industries Co Ltd | 木目模様単板及びその製造方法 |
US20070122644A1 (en) * | 2005-11-29 | 2007-05-31 | Timtek Australia Pty, Ltd. | System and Method For The Preservative Treatment of Engineered Wood Products |
CN101549508A (zh) * | 2009-03-20 | 2009-10-07 | 北京林业大学 | 一种木材功能性改良的技术方法 |
CN102409835A (zh) * | 2011-09-07 | 2012-04-11 | 李茂林 | 一种木地板专用的高密度复合板材及其制造方法 |
CN102581906A (zh) * | 2012-02-27 | 2012-07-18 | 谢庆国 | 一种竹罐容器的加工方法 |
CN105291237A (zh) * | 2015-09-18 | 2016-02-03 | 安徽创业机电设备有限公司 | 一种具有杀菌功能的木质把手制造工艺 |
CN105365021A (zh) * | 2015-11-09 | 2016-03-02 | 成都市美康三杉木业有限公司 | 一种环保阻燃抗菌强化木地板及其制造方法 |
CN105729597A (zh) * | 2016-02-17 | 2016-07-06 | 江苏肯帝亚木业有限公司 | 一种木材修改面层的色泽烟熏处理工艺 |
-
2016
- 2016-08-12 CN CN201610670278.9A patent/CN106272845B/zh active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07164408A (ja) * | 1993-12-13 | 1995-06-27 | Daiken Trade & Ind Co Ltd | 木質化粧板の製造方法 |
JPH1170800A (ja) * | 1997-08-29 | 1999-03-16 | Dainippon Printing Co Ltd | 化粧材 |
JP2000271903A (ja) * | 1999-03-24 | 2000-10-03 | Nippon Paper Industries Co Ltd | 木目模様単板及びその製造方法 |
US20070122644A1 (en) * | 2005-11-29 | 2007-05-31 | Timtek Australia Pty, Ltd. | System and Method For The Preservative Treatment of Engineered Wood Products |
CN101549508A (zh) * | 2009-03-20 | 2009-10-07 | 北京林业大学 | 一种木材功能性改良的技术方法 |
CN102409835A (zh) * | 2011-09-07 | 2012-04-11 | 李茂林 | 一种木地板专用的高密度复合板材及其制造方法 |
CN102581906A (zh) * | 2012-02-27 | 2012-07-18 | 谢庆国 | 一种竹罐容器的加工方法 |
CN105291237A (zh) * | 2015-09-18 | 2016-02-03 | 安徽创业机电设备有限公司 | 一种具有杀菌功能的木质把手制造工艺 |
CN105365021A (zh) * | 2015-11-09 | 2016-03-02 | 成都市美康三杉木业有限公司 | 一种环保阻燃抗菌强化木地板及其制造方法 |
CN105729597A (zh) * | 2016-02-17 | 2016-07-06 | 江苏肯帝亚木业有限公司 | 一种木材修改面层的色泽烟熏处理工艺 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107379168A (zh) * | 2017-08-02 | 2017-11-24 | 湖南工程学院 | 杉木家具板材加工装置 |
CN109551591A (zh) * | 2018-12-18 | 2019-04-02 | 西南林业大学 | 一种圆竹防护剂及圆竹防护方法 |
CN110815480A (zh) * | 2019-11-27 | 2020-02-21 | 浙江柏尔木业有限公司 | 一种应用于实木地板的注蜡工艺 |
CN112497556A (zh) * | 2020-10-28 | 2021-03-16 | 泰州诺盟新材料科技有限公司 | 一种聚丙烯复合材料的制造方法 |
Also Published As
Publication number | Publication date |
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CN106272845B (zh) | 2018-06-08 |
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Effective date of registration: 20180323 Address after: 315012 Zhejiang Province, Ningbo city Haishu District Liyuan Road No. 755 room 1025 Applicant after: Ningbo yuanzhicube Energy Technology Co.,Ltd. Address before: Nanning City, the Guangxi Zhuang Autonomous Region Qingxiu District Kimpo road 530028 No. 6 Jinhu Dijing No. A-123 Applicant before: NANNING YUANZHUO NEW ENERGY TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20211229 Address after: 118-128 Qiangyuan Road, Shuanglin Town, Nanxun District, Huzhou City, Zhejiang Province 313000 Patentee after: HUZHOU BOLI TECHNOLOGY Co.,Ltd. Address before: 315012 room 1025, Liyuan North Road, Haishu District, Ningbo, Zhejiang, China, 755 Patentee before: Ningbo yuanzhicube Energy Technology Co.,Ltd. |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Preparation method of high-density composite flooring substrate Granted publication date: 20180608 Pledgee: Zhejiang Nanxun Rural Commercial Bank branch Shuanglin Limited by Share Ltd. Pledgor: HUZHOU BOLI TECHNOLOGY Co.,Ltd. Registration number: Y2024330000639 |