CN103448331B - A kind of easily recyclable paper wood of degraded and application thereof - Google Patents
A kind of easily recyclable paper wood of degraded and application thereof Download PDFInfo
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- CN103448331B CN103448331B CN201310394298.4A CN201310394298A CN103448331B CN 103448331 B CN103448331 B CN 103448331B CN 201310394298 A CN201310394298 A CN 201310394298A CN 103448331 B CN103448331 B CN 103448331B
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- paper wood
- basic unit
- outer covering
- covering layer
- recyclable paper
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- 239000002023 wood Substances 0.000 title claims abstract description 28
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 235000013305 food Nutrition 0.000 claims abstract description 14
- 239000010954 inorganic particle Substances 0.000 claims abstract description 13
- 238000012856 packing Methods 0.000 claims abstract description 9
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 9
- 239000000057 synthetic resin Substances 0.000 claims abstract description 9
- 239000004743 Polypropylene Substances 0.000 claims abstract description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 6
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 6
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 6
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 6
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 6
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 6
- BLDFSDCBQJUWFG-UHFFFAOYSA-N 2-(methylamino)-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(NC)C(O)C1=CC=CC=C1 BLDFSDCBQJUWFG-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920001179 medium density polyethylene Polymers 0.000 claims abstract description 4
- 239000004701 medium-density polyethylene Substances 0.000 claims abstract description 4
- 230000015556 catabolic process Effects 0.000 claims description 8
- 238000006731 degradation reaction Methods 0.000 claims description 8
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 6
- 235000021355 Stearic acid Nutrition 0.000 claims description 5
- 150000004645 aluminates Chemical class 0.000 claims description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 5
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000012188 paraffin wax Substances 0.000 claims description 5
- 239000008117 stearic acid Substances 0.000 claims description 5
- 239000004604 Blowing Agent Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 239000010459 dolomite Substances 0.000 claims description 2
- 229910000514 dolomite Inorganic materials 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 239000010446 mirabilite Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 6
- 229920003023 plastic Polymers 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 5
- 238000003854 Surface Print Methods 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000013557 residual solvent Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000004575 stone Substances 0.000 description 14
- 238000012360 testing method Methods 0.000 description 9
- 238000005187 foaming Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 4
- 238000003490 calendering Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 235000021022 fresh fruits Nutrition 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 102100022767 Glutamate receptor ionotropic, kainate 3 Human genes 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 101000903337 Homo sapiens Glutamate receptor ionotropic, kainate 3 Proteins 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012611 container material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- -1 highly basic Substances 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The invention discloses a kind of easily recyclable paper wood of degraded and application thereof, the described recyclable paper wood of easy degraded is made up of basic unit and outer covering layer, and described basic unit is made up of the inorganic particle of percentage by weight 60 ~ 80%, 15 ~ 35% synthetic resin and 1 ~ 5% auxiliary addition agent; Described outer covering layer is one or more the combination in EVA, EAA, MPE, HDPE, LDPE, MDPE, LLDPE, PP; Described is applied as the described recyclable paper wood of easy degraded in the application of preparing in disposable food packing container. Outer covering layer of the present invention and basic unit are all by one-shot forming, reduce manufacturing cost and from be the impact of having stopped the factor such as problem and storage environment of compound residual solvent at all, can not produce any harmful substance, non-environmental-pollution, three-waste free discharge, after use, can all reclaim and make other plastic products, not only save the energy, but also reduced use cost. Paper wood degradable of the present invention, surface printing is good, production cost is low, opacity is high, can reclaim completely and can realize industrialization and produce continuously.
Description
Technical field
The invention belongs to material technology field, be specifically related to a kind of easily recyclable paper wood of degraded and application thereof.
Background technology
Now, paper has become a requisite part in people's life, it is widely used in again the fields such as packaging material, hygienic material, environment protecting tableware as a kind of information recording carrier traditional, the most with the longest history, and China has become maximum paper products country of consumption. Along with improving constantly of rapid development of economy and people's living standard, people excessively use and depend on unduly paper, people are still increased year by year to the demand of paper, thereby cause a large amount of trees to be cut down, add " three wastes " pollution problem of following in paper production, the integrated environment problem causing is a kind of new solution urgently.
Under such historical background, stone paper material arises at the historic moment. Stone paper is mainly to dose 70-80% mineral powder with 20-30% high molecular polymer to make. This paper in whole production process without water, do not need to add strong acid, highly basic, bleaching powder and numerous organic chloride, save several important pollution sections such as boiling, washing, bleaching than traditional paper technology, fundamentally stopped the pollution problem causing because producing " three wastes " in paper-making process; This paper is taking cheap mineral powder as main raw material(s), and cost is lower; Good waterproof performance; Grease proofing insect protected is good; Resistance to tearing, folding resistance are good; Good flame resistance; Oleophylic China ink is good, and printing fastness is good; Ink-jet definition is high.
Current packing container adopts plastics, pulp based paper to process more. Particularly with the packaging of Food Contact, sheet package need be in traditional paper the brand-new plastics of film one deck, be difficult to recycle; Plastics package is difficult to degraded, wastes again a large amount of petroleum resources in causing " white pollution ". At present, be widely used in food stage on market, the packing container materials such as medical grade and technical grade mainly contain PVC, PET, PS, PP, ABS etc. Waste and the ecological environment of above-mentioned packaging material to resource all can cause adverse influence. Therefore, develop a kind of degradable, surface printing opacity good, that production cost is low high and can realize industrialization quantity-produced paper wood and be very important.
Summary of the invention
The first object of the present invention is to provide a kind of easily degraded recyclable paper wood; The second object is to provide the application of the recyclable paper wood of described easy degraded.
The first object of the present invention is achieved in that the recyclable paper wood of described easy degraded is by basic unit and outer covering layer, and described basic unit is made up of the inorganic particle of percentage by weight 60 ~ 80%, 15 ~ 35% synthetic resin and 1 ~ 5% auxiliary addition agent; Described outer covering layer is one or more the combination in EVA, EAA, MPE, HDPE, LDPE, MDPE, LLDPE, PP.
The second object of the present invention is achieved in that the described recyclable paper wood of easy degraded is in the application of preparing in disposable food packing container.
Outer covering layer of the present invention and basic unit, all by one-shot forming, are added with a large amount of inorganic particles in manufacturing process, have reduced manufacturing cost; Because adopt one-shot forming from be the impact of having stopped the factor such as problem and storage environment of compound residual solvent at all, production process can not produce any harmful substance, non-environmental-pollution, three-waste free discharge, paper wood of the present invention after use can all reclaim makes other plastic products, not only can save the energy, but also reduce user's use cost. Can produce such as disposable packing container with Food Contact such as boxed cassette, food package box, vegetable box, cake holder, bowl, frozen foodstuff tray, plate, cup, fresh fruit tray, mess-tin etc. with paper wood of the present invention. Paper wood degradable of the present invention, surface printing is good, production cost is low, opacity is high, can reclaim completely and can realize industrialization and produce continuously.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is another embodiment of the present invention structural representation;
In figure: 1-basic unit, 2-outer covering layer, the non-foaming stone paper of 3-ply of paper.
Fig. 3 is the present invention's degraded state diagram 40 days time out of doors;
Fig. 4 is the present invention's degraded state diagram 95 days time out of doors;
Fig. 5 is the present invention's degraded state diagram 150 days time out of doors.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated, but never in any form the present invention is limited, and any conversion or the replacement done based on training centre of the present invention, all belong to protection scope of the present invention.
The recyclable paper wood of easy degraded of the present invention, is made up of basic unit and outer covering layer, and described basic unit is made up of the inorganic particle of percentage by weight 60 ~ 80%, 15 ~ 35% synthetic resin and 1 ~ 5% auxiliary addition agent; Described outer covering layer is one or more the combination in EVA, EAA, MPE, HDPE, LDPE, MDPE, LLDPE, PP.
Described basic unit is foaming stone ply of paper or non-foaming stone ply of paper.
Described basic unit and the weight ratio of outer covering layer are 80 ~ 99:1 ~ 20.
Described basic unit and the preferred 85:15 of the weight ratio of outer covering layer.
Described inorganic particle is one or more in Paris white, talcum powder, diatomite, kaolin, flyash, mica powder, glauber salt or dolomite dust.
Described inorganic particle is Paris white and talcum powder, and Paris white and talcous weight ratio are 100～0:0～100.
Described inorganic particle fineness is 800 ~ 1250 orders.
Described synthetic resin is one or more in LDPE, LLDPE, HDPE or PP.
Described auxiliary addition agent is made up of the Aluminate of basic unit's total weight percent 0.5 ~ 1%, 0.8 ~ 1.2% Tissuemat E, 0.8 ~ 1.2% paraffin, 0.1 ~ 1% stearic acid, 0.1 ~ 0.3% help degradation agent, 0.2 ~ 0.4% antioxidant, 0.5 ~ 1% blowing agent.
Described outer covering layer is arranged at the one or both sides of basic unit.
The recyclable paper wood of easy degraded described in of the present invention being applied as is in the application of preparing in disposable food packing container.
Described disposable food packing container is the disposable packing container with Food Contact such as boxed cassette, food package box, vegetable box, cake holder, bowl, frozen foodstuff tray, plate, cup, fresh fruit tray, mess-tin etc.
Embodiment 1
The callable paper wood of a kind of easily degraded, basic unit: outer covering layer is 99:1, its constituent and percentage by weight are: basic unit, Paris white 80%, synthetic resin PP17%, the Aluminate of auxiliary addition agent 3%(0.5%, 0.8% Tissuemat E, 1.2% paraffin, 0.3% stearic acid, 0.1% help degradation agent, 0.2% antioxidant); Outer covering layer, (EVA10%, PP90%). Jointly by the one-shot forming of one two layers co-extrusion equipment extrusion calendaring, and upper outer covering layer thermal-adhering is at the upper side of basic unit, and basic unit is non-foaming stone ply of paper, and upper outer covering layer is and Food Contact layer; The gross thickness of this stone paper stone paper sheet material is 0.5mm.
Embodiment 2
The callable paper wood of a kind of easily degraded, basic unit: outer covering layer is 80:20, its constituent and percentage by weight are: basic unit, inorganic particle 80%(Paris white 70%, talcum powder 10%) synthetic resin 15%(LDPE3%, LLDPE2%, HDPE10%), the Aluminate of auxiliary addition agent 5%(1%, 1.2% Tissuemat E, 0.8% paraffin, 1% stearic acid, 0.2% help degradation agent, 0.2% antioxidant, 0.6% blowing agent); Outer covering layer, (EAA5%, HDPE95%. Jointly by the one-shot forming of a three-layer co-extruded equipment extrusion calendaring, and upper and lower two outer covering layers thermal-adherings are in the upper and lower two sides of basic unit respectively, basic unit is foaming stone ply of paper, upper and lower outer covering layer is and Food Contact layer; The gross thickness of this stone paper stone paper sheet material is 0.4mm.
Embodiment 3
The callable paper wood of a kind of easily degraded, basic unit: outer covering layer is 85:15, its constituent and percentage by weight are: basic unit, inorganic particle 80% talcum powder 100%, synthetic resin 15%(PP10%, LLDPE3%), the Aluminate of auxiliary addition agent 5%(1%, 0.8% Tissuemat E, 1% paraffin, 0.5% stearic acid, 0.3% help degradation agent, 0.4% antioxidant, 1% blowing agent); Outer covering layer, (PP80%, LLDPE20%). Jointly by the one-shot forming of a three-layer co-extruded equipment extrusion calendaring, and upper and lower two outer covering layers thermal-adherings are in the upper and lower two sides of basic unit respectively, basic unit is foaming stone ply of paper, upper and lower outer covering layer is and Food Contact layer; The gross thickness of this stone paper stone paper sheet material is 0.7mm.
Test example 1
By light degradation test observation, embodiment 1 result of the test is as follows:
Test example 2
By light degradation test observation, embodiment 2 result of the tests are as follows:
Test example 3
By light degradation test observation, embodiment 3 result of the tests are as follows:
Claims (6)
1. the easy recyclable paper wood of degraded, is characterized in that the recyclable paper wood of described easy degraded is made up of basic unit and outer covering layer, and described basic unit is made up of the inorganic particle of percentage by weight 60 ~ 80%, 15 ~ 35% synthetic resin and 1 ~ 5% auxiliary addition agent; Described inorganic particle is one or more in Paris white, talcum powder, diatomite, kaolin, flyash, mica powder, glauber salt or dolomite dust, described synthetic resin is one or more in LDPE, LLDPE, HDPE or PP, and described auxiliary addition agent is made up of the Aluminate of basic unit's total weight percent 0.5 ~ 1%, 0.8 ~ 1.2% Tissuemat E, 0.8 ~ 1.2% paraffin, 0.1 ~ 1% stearic acid, 0.1 ~ 0.3% help degradation agent, 0.2 ~ 0.4% antioxidant, 0.5 ~ 1% blowing agent; Described outer covering layer is one or more the combination in EVA, MPE, HDPE, LDPE, MDPE, LLDPE, PP; Described basic unit and the weight ratio of outer covering layer are 80 ~ 99:1 ~ 20.
2. the recyclable paper wood of easy degraded according to claim 1, is characterized in that described basic unit and the weight ratio of outer covering layer are 85:15.
3. the recyclable paper wood of easy degraded according to claim 1, is characterized in that described inorganic particle is Paris white and/or talcum powder, and Paris white and talcous weight ratio are 100 ~ 0:0 ~ 100.
4. according to the recyclable paper wood of easy degraded described in claim 1 or 3, it is characterized in that described inorganic particle fineness is 800 ~ 1250 orders.
5. the recyclable paper wood of easy degraded according to claim 1, is characterized in that described outer covering layer is arranged at the one or both sides of basic unit.
6. an application for the recyclable paper wood of easy degraded claimed in claim 1, is characterized in that the described recyclable paper wood of easy degraded is in the application of preparing in disposable food packing container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310394298.4A CN103448331B (en) | 2013-09-03 | 2013-09-03 | A kind of easily recyclable paper wood of degraded and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310394298.4A CN103448331B (en) | 2013-09-03 | 2013-09-03 | A kind of easily recyclable paper wood of degraded and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103448331A CN103448331A (en) | 2013-12-18 |
| CN103448331B true CN103448331B (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310394298.4A Active CN103448331B (en) | 2013-09-03 | 2013-09-03 | A kind of easily recyclable paper wood of degraded and application thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106750913A (en) * | 2016-12-06 | 2017-05-31 | 林信光 | Environment-friendly degradable barrier paper |
| MX2017005123A (en) * | 2017-04-20 | 2018-01-17 | Ind Sustentables Nava S A P I De C V | Ecological mineral paper of recycled plastic and the manufacturing process thereof. |
| CN108716158B (en) * | 2018-05-04 | 2020-07-10 | 吉翔宝（太仓）离型材料科技发展有限公司 | Degradable food paper and preparation method thereof |
| CN109435400A (en) * | 2018-11-26 | 2019-03-08 | 付进 | A kind of multi-layer co-extrusion packaging film and preparation method thereof with papery feel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0773094A1 (en) * | 1995-11-16 | 1997-05-14 | Nan Ya Plastics Corporation | Synthetic paper and method for its manufacture |
| CN1651649A (en) * | 2004-02-02 | 2005-08-10 | 王锡臣 | Preparation method of environmental protection synthetic paper |
| CN101462387A (en) * | 2008-12-31 | 2009-06-24 | 宋旭 | Modified polyolefins paper without plant fibre |
| CN102321292A (en) * | 2011-10-20 | 2012-01-18 | 夏丽蓉 | Metallocene polyethene (PE) rich mineral paper and making method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100263021B1 (en) * | 1998-06-10 | 2000-09-01 | 김범수 | Polypropylene synthetic paper |
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2013
- 2013-09-03 CN CN201310394298.4A patent/CN103448331B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0773094A1 (en) * | 1995-11-16 | 1997-05-14 | Nan Ya Plastics Corporation | Synthetic paper and method for its manufacture |
| CN1651649A (en) * | 2004-02-02 | 2005-08-10 | 王锡臣 | Preparation method of environmental protection synthetic paper |
| CN101462387A (en) * | 2008-12-31 | 2009-06-24 | 宋旭 | Modified polyolefins paper without plant fibre |
| CN102321292A (en) * | 2011-10-20 | 2012-01-18 | 夏丽蓉 | Metallocene polyethene (PE) rich mineral paper and making method thereof |
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| CN103448331A (en) | 2013-12-18 |
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Effective date of registration: 20180419 Address after: 650307 Longshan Coal Mine, Anning Wenquan Town, Kunming, Yunnan Patentee after: YUNNAN KUNMING IRON & STEEL STONE PAPER ENVIRONMENTAL PROTECTION MATERIAL CO.,LTD. Address before: 650302 Yunnan city of Kunming province Anning City Lang Chuang Patentee before: KUNMING IRON & STEEL HOLDING Co.,Ltd. |
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Effective date of registration: 20231027 Address after: Building 6, Qilin Area, Anning Industrial Park, Anning City, Kunming City, Yunnan Province, 650300 Patentee after: Anning Xielu Environmental Protection Materials Co.,Ltd. Address before: 650307 Kungang Longshan Mine, Anning Wenquan Town, Kunming City, Yunnan Province Patentee before: YUNNAN KUNMING IRON & STEEL STONE PAPER ENVIRONMENTAL PROTECTION MATERIAL CO.,LTD. |