CN104018394B - Manufacturing method of melamine impregnated paper used for laminate flooring - Google Patents
Manufacturing method of melamine impregnated paper used for laminate flooring Download PDFInfo
- Publication number
- CN104018394B CN104018394B CN201410215947.4A CN201410215947A CN104018394B CN 104018394 B CN104018394 B CN 104018394B CN 201410215947 A CN201410215947 A CN 201410215947A CN 104018394 B CN104018394 B CN 104018394B
- Authority
- CN
- China
- Prior art keywords
- paper
- melmac
- softening
- bacterial cellulose
- impregnated paper
- 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
- 229920000877 Melamine resin Polymers 0.000 title claims abstract description 21
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000009408 flooring Methods 0.000 title abstract 3
- 229920002749 Bacterial cellulose Polymers 0.000 claims abstract description 14
- 239000005016 bacterial cellulose Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 108010079058 casein hydrolysate Proteins 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 238000007598 dipping method Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 241000894006 Bacteria Species 0.000 claims description 7
- 229920002678 cellulose Polymers 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 7
- 238000002803 maceration Methods 0.000 claims description 6
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 6
- 229920001131 Pulp (paper) Polymers 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 5
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 241000589220 Acetobacter Species 0.000 claims description 3
- 235000002837 Acetobacter xylinum Nutrition 0.000 claims description 3
- 229930091371 Fructose Natural products 0.000 claims description 3
- 239000005715 Fructose Substances 0.000 claims description 3
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 claims description 3
- 241001136169 Komagataeibacter xylinus Species 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 3
- 229930006000 Sucrose Natural products 0.000 claims description 3
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 3
- 229920000180 alkyd Polymers 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000010494 dissociation reaction Methods 0.000 claims description 3
- 230000005593 dissociations Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000005720 sucrose Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000000855 fermentation Methods 0.000 claims 1
- 230000004151 fermentation Effects 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 5
- 239000004640 Melamine resin Substances 0.000 abstract 2
- 239000012528 membrane Substances 0.000 abstract 2
- 239000003292 glue Substances 0.000 abstract 1
- 239000012948 isocyanate Substances 0.000 abstract 1
- 150000002513 isocyanates Chemical class 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 26
- 239000000463 material Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000005829 trimerization reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Paper (AREA)
Abstract
The invention discloses a manufacturing method of melamine impregnated paper used for laminate flooring. The manufacturing method comprises the following steps of preparing a bacterial cellulose membrane, preparing high strength impregnated body paper, softening a melamine resin and preparing the melamine impregnated paper. The manufacturing method takes mixed sugar as a carbon source and casein hydrolysate as a nitrogen source, so that output of the bacterial cellulose membrane is greatly increased. Isocyanate with high glue strength and good toughness is added in the softening process of the melamine resin; and the whole preparation process is reasonable in design and is scientific and controllable, so that preparation cost is reduced and physical properties of products are good, thereby meeting use requirements of the laminate flooring.
Description
Technical field
The invention belongs to wood-base fibre and particle panel material field, it is related to a kind of manufacture method of melamine impregnated paper and in particular to one
Plant the manufacture method of consolidated floor melamine impregnated paper.
Background technology
Consolidated floor, also known as impregnated-paper laminated wood floor, it is the surface with high density fiberboard or particieboard as base material
Post melamine impregnated paper, the back side posts a kind of wood floors that balance layer is made through hot pressing.It is beautiful that consolidated floor has surface
See, the advantages of anti-wear performance is good, good stability of the dimension, anti-pollution ability are strong, shock resistance is good, easy for installation, in decoration dress
The field of repairing has obtained substantial amounts of use, is deeply liked by consumers in general.
In the manufacture of consolidated floor, the performance of melamine impregnated paper plays very important to the quality of consolidated floor
Effect, determines surface property and the quality of consolidated floor.Yet with fragility after melmac solidification is big, low intensity,
Easily embrittlement, lead to melamine impregnated paper storage, carrying, using etc. process easily occur surface fracture, cracking, embrittlement,
Tear etc. damages and becomes waste product, thus greatly reducing the production efficiency of consolidated floor and the quality of product, and improves life
Produce cost.Although having scholar and manufacturing enterprise to add the methods such as plasticizer, modifying agent using in melmac, make trimerization
The fragility that cyanamide impregnates paper has obtained a certain degree of improvement, but till settled the present, solves melamine impregnated paper still without thorough
The problem of low intensity, easily embrittlement.
Content of the invention
The technical problem to be solved in the present invention is: the various problems existing for existing melamine impregnated paper, provides one
Plant the preparation method of the consolidated floor melamine impregnated paper that intensity is high, fragility is little, cheap for manufacturing cost.
The technical solution adopted in the present invention is as follows:
A kind of manufacture method of consolidated floor melamine impregnated paper, comprises the following steps:
1), prepare bacteria cellulose film
With acetobacter xylinum or Pasteur's acetobacter as raw material, with mixed sugar as carbon source, with casein hydrolysate as nitrogen source, in anti-
Answering ferments in kettle is obtained bacterial cellulose wet-coating, then bacterial cellulose wet-coating is soaked in aqueous slkali, and deionized water is rinsed
Its ph value is made to reach standby after neutrality；
2), prepare high intensity decorative paper
By step 1) be obtained neutral bacterial cellulose wet-coating cutting blocking, mix by 1: 6-9 weight ratio with water, marking
In quasi- fiber dissociation device, bacterial cellulose suspension is obtained with the rotating speed machine decomposition that 12000-13000 turns, afterwards by suspension
High intensity decorative paper is obtained by the weight of 0.5-4% than compound sheet uniform with paper pulp, then after squeezing, being dried；
3), melmac softening
After melmac being modified using alkyd resin or thiocarbamide, add the isocyanide than 1.0-2.0% for the weight
Sour fat, is obtained softening melmac maceration extract after quickly stirring；
4), prepare melamine impregnated paper
By step 3) be obtained softening melmac maceration extract load cement dipping machine in, by dipping, be dried after be obtained
Top layer dipping abrasion-proof paper or decorative impregnated paper, store in the special warehouse inserting constant temperature and humidity.
For improving the yield of bacteria cellulose film, it is carbon source that the present invention adopts mixed sugar, with casein hydrolysate as nitrogen source,
Wherein, mixed sugar be preferably the sucrose of 55-70wt% and the fructose of 30-45wt%, also can be selected for 55-70wt% glucose and
The maltose of 30-45wt%.
It is further preferred that above-mentioned steps 1) in aqueous slkali be 0.1-0.2mol/l naoh solution.
Step 2) neutral bacterial cellulose and water weight ratio for 1: 7, the weight ratio that suspension presses 2.5% is mixed with paper pulp
Close.
Compared with prior art, the device have the advantages that as follows:
It is carbon source that the present invention adopts mixed sugar when preparing bacteria cellulose film, with casein hydrolysate as nitrogen source, thus
Substantially increase the yield of bacteria cellulose film, add bonding strength height, good toughness during melmac softening
Carbimide, whole preparation technology is reasonable in design, science is controlled, not only reduces preparation cost, and product is physical
Can be good, up to 10-14n, up to 8-12n, wet shape folding strength is up to 50-70 for the horizontal stretching resistance of wet shape for wet shape longitudinal direction stretching resistance
Secondary, wet shape burst index is up to 1-2kpa m2/ g, wet shape tear index is up to 3.5-4mn m2/ g, can meet consolidated floor
Use requirement.
Specific embodiment
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that described enforcement
Example is used only for help and understands the present invention, is not construed as the concrete restriction to the present invention.
As no specific instructions, the various raw materials of the present invention all can be by being commercially available；Or the routine side according to this area
Method prepares.Unless otherwise defined or described herein, all specialties used herein are ripe with art technology with scientific words
Practice meaning familiar to the person of entering institute identical.In addition any method similar or impartial to described content and material all can be applicable to this
In inventive method.Unless otherwise indicated, all specialties used herein and scientific words and those skilled in the art
Meaning familiar to institute is identical.
Embodiment 1
The manufacture method of top layer melamine-impregnated abrasion-proof paper, comprises the following steps:
1), prepare bacteria cellulose film
With acetobacter xylinum or Pasteur's acetobacter as raw material, with the fructose of the sucrose of 55-70wt% and 30-45wt% as carbon
Source, with casein hydrolysate as nitrogen source, ferments in the reactor with agitator and bacterial cellulose wet-coating is obtained, afterwards will be thin
Fungin wet film takes out in the naoh solution being soaked in 0.15mol/l concentration from reactor, then deionized water is repeatedly soaked
Bubble and rinsing so as to ph value reaches after neutrality with standby or store.
2), prepare high intensity decorative paper
By step 1) be obtained neutral bacterial cellulose wet-coating be cut into dimensions be 5-8mm × 5-8mm fritter, with
Water presses 1: 7 weight ratio mixing, bacteria cellulose is obtained with 12500 turns of rotating speed machine decomposition and hangs in standard fibers dissociation device
Supernatant liquid, the weight afterwards suspension being pressed 2.5% is obtained high intensity than compound sheet uniform with paper pulp, then after squeezing, being dried
Decorative paper.
3), melmac softening
Using alkyd resin or thiocarbamide, melmac is carried out conventional modified, prepared fragility is less, there have to be necessarily soft
Property melmac, add the carbimide than 1.5% for the weight afterwards, after quickly stirring, be obtained that fragility is little, toughness
Good softening melmac maceration extract.
4), prepare melamine impregnated paper
By step 3) the softening melmac maceration extract that is obtained loads in cement dipping machine, impregnated twice and do twice
Dry: according to high intensity decorative paper dipping softening melmac, spraying wear-resistant materials, to be dried for the first time, impregnate for second
Softening melmac, second operation such as drying, cooling, cutting are manufactured, and insert in the special warehouse of constant temperature and humidity
Store.
The top layer melamine-impregnated abrasion-proof paper that the present embodiment is obtained, compared with the product that market is buied, after testing
As follows:
Wet shape longitudinal direction stretching resistance is 12n, the horizontal stretching resistance of wet shape is 10n, improves 40%；
Wet shape folding strength is 60 times, improves 4 times；
Wet shape burst index is 1-2kpa m2/ g, improves 1.5 times；
Wet shape tear index is 4mn m2/ g, improves 30%.
Embodiment 2
The manufacture method of melamine decorative impregnated paper, compared with Example 1 difference be:
Step 4) carry out single-steeping and be dried twice: according to high intensity decorative paper dipping softening melmac,
The operations such as drying, dipping softening melmac, drying, cooling, cutting are manufactured.
The melamine decorative impregnated paper that the present embodiment is obtained is compared with the product that market is buied, as follows after testing:
Wet shape longitudinal direction stretching resistance is 10n, the horizontal stretching resistance of wet shape is 8n, improves 30%；
Wet shape folding strength is 50 times, improves 3 times；
Wet shape burst index is 1kpa m2/ g, improves 1 times；
Wet shape tear index is 3.5mn m2/ g, improves 30%.
Applicant state, person of ordinary skill in the field on the basis of above-described embodiment, by above-described embodiment
The concrete content point value of component, combined with the technical scheme of Summary, thus the new number range producing, be also
One of record scope of the present invention, the application is to make specification simple and clear, no longer enumerates these number ranges.
Claims (1)
1. a kind of manufacture method of consolidated floor melamine impregnated paper is it is characterised in that comprise the following steps:
1), prepare bacteria cellulose film
With acetobacter xylinum or Pasteur's acetobacter as raw material, with mixed sugar as carbon source, with casein hydrolysate as nitrogen source, in reactor
Middle fermentation is obtained bacterial cellulose wet-coating, then bacterial cellulose wet-coating is soaked in aqueous slkali, and deionized water is rinsed and made it
Ph value reaches standby after neutrality；
2), prepare high intensity decorative paper
By step 1) be obtained neutral bacterial cellulose wet-coating cutting blocking, mix by 1: 6-9 weight ratio with water, standard fibre
In dimension dissociation device, bacterial cellulose suspension is obtained with the rotating speed machine decomposition that 12000-13000 turns, afterwards suspension is pressed
The weight of 0.5-4% is obtained high intensity decorative paper than compound sheet uniform with paper pulp, then after squeezing, being dried；
3), melmac softening
After melmac being modified using alkyd resin or thiocarbamide, add the carbimide than 1.0-2.0% for the weight,
Softening melmac maceration extract is obtained after quickly stirring；
4), prepare melamine impregnated paper
By step 3) be obtained softening melmac maceration extract load cement dipping machine in, by step 2) be obtained high intensity dipping
Body paper impregnated in softening melmac, then top layer dipping abrasion-proof paper or decorative impregnated paper are obtained after being dried, and inserts
Store in the special warehouse of constant temperature and humidity；
Described step 1) mixed sugar be made up of the sucrose of 55-70wt% and the fructose of 30-45wt%；
Described step 1) in aqueous slkali be 0.1-0.2mol/l naoh solution；
Described step 2) neutral bacterial cellulose and water weight ratio for 1: 7, the weight ratio that suspension presses 2.5% is mixed with paper pulp
Close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215947.4A CN104018394B (en) | 2014-05-19 | 2014-05-19 | Manufacturing method of melamine impregnated paper used for laminate flooring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215947.4A CN104018394B (en) | 2014-05-19 | 2014-05-19 | Manufacturing method of melamine impregnated paper used for laminate flooring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104018394A CN104018394A (en) | 2014-09-03 |
| CN104018394B true CN104018394B (en) | 2017-01-18 |
Family
ID=51435367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410215947.4A Active CN104018394B (en) | 2014-05-19 | 2014-05-19 | Manufacturing method of melamine impregnated paper used for laminate flooring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104018394B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532677A (en) * | 2014-11-24 | 2015-04-22 | 南通新世纪机电有限公司 | Manufacturing method of melamine impregnated paper |
| CN104532678A (en) * | 2014-11-24 | 2015-04-22 | 南通新世纪机电有限公司 | Production method of melamine printing decorative impregnated paper |
| CN104894914B (en) * | 2015-05-05 | 2017-10-13 | 浙江宜佳新材料股份有限公司 | A kind of preparation method of modified dipping paper body paper |
| CN110805235A (en) * | 2019-10-10 | 2020-02-18 | 宾可私人有限公司 | SPC floor capable of adsorbing formaldehyde |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6001925A (en) * | 1998-01-14 | 1999-12-14 | Georgia-Pacific Resins, Inc. | Melamine-formaldehyde resins modified with dicyandiamide and sorbitol for impregnation of substrates for post-formable decorative laminates |
| DE10021849A1 (en) * | 2000-05-05 | 2001-11-08 | Solutia Germany Gmbh & Co Kg | Aqueous aminoplast composition, used for impregnating paper or cardboard for use as finish foil or edge for furniture, contains specified formaldehyde-binding additive and optionally acrylate resin dispersion |
| DE102007047636A1 (en) * | 2007-10-04 | 2009-04-09 | Dakor Melamin Imprägnierungen Gmbh | Process for producing an abrasion-resistant film and finishing film which can be produced by this process |
| CN101363202A (en) * | 2008-08-22 | 2009-02-11 | 许春元 | Bacterial cellulose enhanced paper |
-
2014
- 2014-05-19 CN CN201410215947.4A patent/CN104018394B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104018394A (en) | 2014-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170028600A1 (en) | Method of Manufacturing a Stiff Engineered Composite | |
| CN104018394B (en) | Manufacturing method of melamine impregnated paper used for laminate flooring | |
| CN101863065B (en) | Process for manufacturing large-breadth plates by using all-bamboo modified material | |
| CN101712176B (en) | Method for manufacturing shadow changing recombined decorative wood by using natural wood | |
| CN104108120B (en) | Facing composite container baseboard and manufacture method thereof | |
| CN105599099A (en) | Method for making decoration plate | |
| CN105710955A (en) | Methylene diphenyl isocyanate (MDI) light high-strength fiber board and manufacturing method | |
| CN104532677A (en) | Manufacturing method of melamine impregnated paper | |
| CN103266530B (en) | Brim material made from plant fiberboard and preparation method thereof | |
| CN105111718A (en) | Birch bark compound material and preparation method and application thereof | |
| CN105034126A (en) | Method for pressing high-performance reconsolidated wood | |
| CN106013715B (en) | A kind of preparation process of the composite floor board of Eucalyptus laminated veneer lumber production | |
| CN104118027B (en) | A kind of environment protection damp-proof type medium density fibre board (MDF) and manufacture method thereof | |
| CN101892732B (en) | Method for manufacturing anti-cracking solid wood composite blue and white porcelain floor | |
| CN101100076A (en) | Bamboo substrate plate and manufacturing method thereof, and fittings unit and kitchen furniture made therefrom | |
| CN106883798A (en) | The consolidated floor base material manufacture adhesive that is modified | |
| CN204172143U (en) | A kind of real-wood integrated material of new structure | |
| CN106738112A (en) | A kind of heavy wood material suppressed with veneer and preparation method thereof | |
| CN103817750B (en) | Manufacturing method of reorganized solid board | |
| CN106239646A (en) | Use the method that moistureproof composite urea formaldehyde resin produces full Eucalyptus solid wooden compound floor | |
| CN103509360B (en) | A kind of nanometer glass modified synergic strengthens the preparation method that plate moulded by wood | |
| CN116352822A (en) | Environment-friendly high-strength bamboo-wood composite shaving board and preparation method and application thereof | |
| CN102294720B (en) | Production method of imitated ebony bamboo laminated wood | |
| CN104385426A (en) | Dampproof artificial fiber board furniture | |
| WO2008139767A1 (en) | Tannin adhesive, woody composite material utilizing the same and process for producing the woody composite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200325 Address after: 510000 room 711, 5 Huangpu East Road, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Juncheng Intellectual Property Agency Co., Ltd Address before: 311300 No. 88 North Ring Road, Jincheng Town, Ling'an City, Zhejiang Province Patentee before: ZHEJIANG A & F University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200327 Address after: No. 8, ruxiliukuai village, Xiqiao Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan Jiansheng decoration materials Co., Ltd Address before: 510000 room 711, 5 Huangpu East Road, Huangpu District, Guangzhou City, Guangdong Province Patentee before: Guangzhou Juncheng Intellectual Property Agency Co., Ltd |
|
| TR01 | Transfer of patent right |