CN102336536B - Polypropylene stone oil painting canvas and preparation method thereof - Google Patents
Polypropylene stone oil painting canvas and preparation method thereof Download PDFInfo
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- CN102336536B CN102336536B CN 201110179316 CN201110179316A CN102336536B CN 102336536 B CN102336536 B CN 102336536B CN 201110179316 CN201110179316 CN 201110179316 CN 201110179316 A CN201110179316 A CN 201110179316A CN 102336536 B CN102336536 B CN 102336536B
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Abstract
The invention relates to a polypropylene stone oil painting canvas and a preparation method thereof. The polypropylene stone oil painting canvas is formed by treating the following components in percentage by mass by calendering and surface corona technology: 10 to 25 percent of polypropylene, 50 to 75 percent of CaCO3, 10 to 25 percent of titanium white powder, 0.5 to 1 percent of coupling agent, 0.5 to 1 percent of dispersant, 0.5 to 1 percent of flame retardant, 0.1 to 1 percent of ultra-micro foaming agent, and 0.5 to 1 percent of compatilizer. The polypropylene stone oil painting canvas has relatively large specific surface area, strong polarity on the surface and affinity to oily pigments, is easily colorized and durable, and has high strength, puncturing resistance, tearing resistance (particularly transverse tearing resistance), abrasion resistance and good folding resistance. The method is simple in process, low in cost, high in efficiency and suitable for large-scale industrialized production.
Description
Technical field
The present invention relates to a kind of synthetic paper and technology thereof, be specifically related to a kind of polypropylene stone canvas and preparation method thereof.
Background technology
The raw material of conventional paper mainly is vegetable fibres such as timber, along with the appearance of national wood protection policy, prohibits the execution of cutting down order, and paper making raw material can only be kept by import pulp.The conventional paper production process produces three waste discharge things such as a large amount of waste water, serious environment pollution, and difficulty of governance is very big, and conventional paper is humidity, corrosion not, every physical and mechanical properties and poor dimensional stability can not satisfy many particular requirements with the paper field, and the paper production development needs innovation.
Last century the fifties, having occurred with plastics, lime carbonate and multiple auxiliary agent is raw material, the environmental protection synthetic paper of producing with blown film method, casting method, be characterized in that every physical and mechanical properties is better than conventional paper, humidity, waterproof, corrosion-resistant, dimensional stability is good, satisfied the multiple requirement of different field, the certain fields that replaced conventional paper, three-waste free discharge in the synthetic paper production process, environmentally safe, and the synthetic paper recirculation can be utilized, be good ep-type material.China's synthetic paper is started late, market development is not enough, present annual consumption is ten thousand tons of 3-4, be mainly import, basic as garment bag, handbag, woven bag, offset printing, silk screen printing, advertising painting, books, printing trade mark etc., wherein the advertising painting consumption accounts for 40%, printing trade mark consumption accounts for 15%, woven bag, offset printing, silk screen printing consumption respectively account for 10%, and handbag, garment bag consumption account for 10%, the books consumption accounts for 5%.
Canvas is one of artistic material of domestic a large amount of uses, traditional canvas adopts mostly at the figure layer of vegetable fibre coating white and makes, the compactness of the figure rete of this artistic painting canvas is not enough, can take place during drawing that the back of the body oozes, oil suction is more serious, make the effect of drawing a picture undesirable, this in addition canvas is also originated and vegetable fibre mostly, and production process has not only expended a large amount of trees, and environmental pollution is serious.Occurred at home at present by stone flour and the direct synthetic oil painting canvas of making that is coated with of other auxiliary agents such as plastics, lime carbonate, but this class canvas content of stone powder is lower than 30%, main raw material is plastics, though it has solved to a certain extent, can carry on the back during drawing ooze, problem that oil suction is more serious, but but exist the painting canvas specific surface area less, the polarity on painting canvas surface and poor, defectives such as painted difficulty to the avidity of oily pigment.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide little, the easy coloring of a kind of specific surface area, and have the polypropylene stone canvas of anti-flaming function.
Another object of the present invention is to provide a kind of manufacture craft of polypropylene stone canvas, overcome in the prior art and to have occurred the effect of the drawing a picture unfavorable defective that the back of the body oozes, oil suction causes because of content of stone powder is too high, method technology of the present invention is simple, and cost is low, efficient is high, be applicable to large-scale industrial production.
For achieving the above object, the technical solution adopted in the present invention is as follows:
A kind of polypropylene stone canvas, after rolling, handle to form by surface corona by by percentage to the quality following component:
Polypropylene: 10-25%, CaCO3:50-75%, titanium dioxide: 10-20%, coupling agent: 0.5-1%, dispersion agent: 0.5-1%, fire retardant: 0.5-1%, ultra micro whipping agent: 0.1-1%, compatilizer: 0.5-1%.
In the preferred scheme, polypropylene stone canvas of the present invention, form by following component by percentage to the quality:
Polypropylene: 25%, CaCO3:51%, titanium dioxide: 20%, coupling agent: 1%, dispersion agent: 1%, fire retardant: 0.7%, the ultra micro whipping agent: 0.3%, compatilizer: 1%.
Coupling agent described in the solution of the present invention is a kind of in chromium complex coupling agent, silane coupling agent, the titante coupling agent.Wherein, the chromium metal complex compound that the chromium complex coupling agent is formed by unsaturated organic acid and trivalent chromic ion, synthetic and utilisation technology is all ripe, and also cost is low, but kind is more single; The general formula of silane coupling agent is RSiX3, R represents groups such as amino, sulfydryl, vinyl, epoxy group(ing), cyano group and methacryloxy in the formula, these groups all have stronger response capacity with different matrix resins, X representative can hydrolysis alkoxyl group (as methoxyl group, oxyethyl group etc.), silane coupling agent has KH550, KH560 at home, KH570, KH792, DL602, these several models of DL171; Titanate coupling agent comprises four kinds of base types: (1) monoalkoxy type: this class coupling agent is applicable to various kinds of resin based composites system, is particularly suitable for not containing free-water, only contains the infill system of chemical bond Heshui or mechanical water; (2) monoalkoxy pyrophosphate type: such coupling agent is applicable to the multiple composite system of resin base, is particularly suitable for the high filler systems of water capacity; (3) chelating type: such coupling agent has extraordinary stability to hydrolysis; (4) coordination build.The monoalkoxy type coupling agent in the titante coupling agent preferably among the present invention.
Dispersion agent can improve and improve the auxiliary agent of solid or liquid material dispersing property.When solid dye grinds, add dispersion agent, help particle to pulverize and stop broken particle aggregation and keep dispersion stable.Water-fast oily liquid can be dispersed into very little liquid pearl under high shear force stirs, after stopping stirring, and very fast layering under the effect of interfacial tension, and stir after adding dispersion agent, then can form stable emulsion.It mainly acts on is the interfacial tension that reduces between liquid-liquid and solid-liquid.The dispersion agent that is adopted among the present invention is one or more mixing in glyceryl monostearate, Tristearoylglycerol, oleic acid acyl, hydro carbons paraffin, microcrystalline wax, low-molecular-weight wax class, the metallic soap class.
The fire retardant that is adopted among the present invention is one or more mixing in magnesium hydroxide, aluminium hydroxide, TDC polypropylene, ammonium polyphosphate, eight bromo ether, triphenylphosphate, hexabromocyclododecane, M polypropylene, zinc borate, TDE, the encapsulated red phosphorus.
Adopting the ultra micro whipping agent among the present invention is a kind of in azo-compound, sulfonyl hydrazines compound, the nitroso compound.Wherein azo foaming agent is big because of gas forming amount, the microbubble particle diameter is little, be widely used in polyvinyl chloride, polyethylene, ethene one intoxicated sour ethylene copolymer, polypropylene, polystyrene, ABS is in the ultra micro foaming technique of multiple material building-up processes such as nylon 6 and chloroprene rubber, it comprises: Cellmic C 121,2,2 ' one Diisopropyl azodicarboxylate, diisopropyl azodiformate, azoformic acid barium etc.Therefore the preferred ultra micro whipping agent of the present invention is an azo foaming agent.
Described compatilizer is polyethylene-phenylethene grafted copolymer, polypropylene-phenylethene grafted copolymer, ABS-maleic anhydride graft copolymer, grafted polyvinyl-maleic anhydride copolymer, polypropylene-maleic anhydride graft copolymer.Because the maleic anhydride graft compatilizer is by introducing strong polar reaction group, make material have high polarity and reactivity, therefore preferably maleic anhydride graft copolymerization among the present invention is as grafted polyvinyl-maleic anhydride copolymer, polypropylene-maleic anhydride graft copolymer etc.
A kind of manufacture craft of polypropylene stone canvas, it may further comprise the steps:
A: with polypropylene by mass percentage: 10-25%, CaCO3:50-75%, titanium dioxide: 10-20%, coupling agent: 0.5-1%, dispersion agent: 0.5-1%, fire retardant: 0.5-1%, ultra micro whipping agent: 0.1-1%, compatilizer: 0.5-1% in 100 ℃ vacuum drying oven dry 24 hours to the raw material water content less than 2%;
B: above-mentioned dried each component is mixed in tablets press, at room temperature stir earlier cold mixing in the mixing process, being heated to 100-110 ℃ afterwards, to carry out heat mixed, and the raw material after mixing carries out granulation;
C: the raw material after the above-mentioned granulation is sent in the rolling press screw rod, the screw rod heating of rolling press also is controlled in equilibrium temperature 210-220 ℃, ultra micro whipping agent in the raw material will foam this moment (the ultra micro whipping agent reaches temperature 200-210 ℃ and will foam), raw material becomes molten state (fluid state) under this high temperature, being expressed into stretcher roll through die head again rolls, the speed of rolling mill roller is 50～90 m/min, raw material is depressed into the sheet that thickness is 0.3 ± 3%mm, obtains polypropylene stone canvas work in-process;
E: above-mentioned polypropylene stone canvas work in-process are carried out the surface high pressure corona treatment, and voltage control lies prostrate at 15000-16000, obtains finished product after handling.
Preferably, ultra micro whipping agent of the present invention is a kind of in azo-compound, sulfonyl hydrazines compound, the nitroso compound, and the particle diameter of ultra micro microbubble that whipping agent produces is 8-10 μ m.
In the preferred scheme, rolling press of the present invention is five roll calendars.
Compared to existing technology, beneficial effect of the present invention is: in the polypropylene stone canvas of the present invention, calcium carbonate content has surpassed 50%, effectively reduces the consumption of plastics, and recyclable again, lime carbonate is cheap, and stability is high.Owing to adopted the high-voltage corona technology, polypropylene stone canvas specific surface area of the present invention is higher, the polarity on painting canvas surface and strong to the avidity of oily pigment, painted durable in use easily, big, the anti-acanthopore of intensity, anti tear (especially horizontal), wear-resisting, folding resistance good, because of its including natural fibers not, 100% waterproof, anti-chemical product and grease-proof.The preparation method of polypropylene stone canvas of the present invention is simple, overcome in the prior art and to have occurred the effect of the drawing a picture unfavorable defective that the back of the body oozes, oil suction causes because of content of stone powder is too high, method technology of the present invention is simple, and cost is low, efficient is high, be applicable to large-scale industrial production.
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment
A kind of manufacture craft of polypropylene stone canvas, it may further comprise the steps:
A: with polypropylene by mass percentage: 5-25%, CaCO3:50-75%, titanium dioxide: 10-20%, coupling agent: 0.5-1%, dispersion agent: 0.5-1%, fire retardant: 0.5-1%, ultra micro whipping agent: 0.1-1%, compatilizer: 0.5-1% in 100 ℃ vacuum drying oven dry 24 hours to the raw material water content less than 2%;
B: above-mentioned dried each component is mixed in tablets press, at room temperature stir earlier cold mixing in the mixing process, being heated to 100-110 ℃ afterwards, to carry out heat mixed, and the raw material after mixing carries out granulation;
C: the raw material after the above-mentioned granulation is sent in the rolling press screw rod, the screw rod heating of rolling press also is controlled in equilibrium temperature 210-220 ℃, ultra micro whipping agent in the raw material produces microbubble (the ultra micro whipping agent reaches temperature 200-210 ℃ will produce microbubble) at this moment, raw material can become molten state (fluid state) under this high temperature, being expressed into stretcher roll through die head again rolls, the speed of rolling mill roller is 50～90 m/min, raw material is depressed into the sheet that thickness is 0.3 ± 3%mm, obtains polypropylene stone canvas work in-process;
E: above-mentioned polypropylene stone canvas work in-process are carried out the surface high pressure corona treatment, and voltage control lies prostrate at 15000-16000, obtains finished product after handling.
Be specific embodiment below.
Embodiment 1
With polypropylene by percentage to the quality: 25%, CaCO3:51%, titanium dioxide: 20%, coupling agent: 1%, dispersion agent: 1%, fire retardant: 0.7%, the ultra micro whipping agent: 0.3%, compatilizer: 1% in vacuum drying oven dry 24 hours to the raw material water content less than 2%; Above-mentioned dried each component is mixed in tablets press, at room temperature stir earlier cold mixing in the mixing process, being heated to 100 ℃ afterwards, to carry out heat mixed, and the raw material after mixing carries out granulation; Raw material after the granulation is sent in the rolling press screw rod, the heating of the screw rod of rolling press also is controlled in 220 ℃ of the equilibrium temperatures, ultra micro whipping agent in the raw material produces microbubble at this moment, this moment, raw material can become molten state (fluid state) under this high temperature, being expressed into stretcher roll through die head again rolls, the speed of rolling mill roller is 90 m/min, and raw material is depressed into the sheet that thickness is 0.3mm, obtains polypropylene stone canvas work in-process; Then polypropylene stone canvas work in-process are carried out the surface high pressure corona treatment, voltage control obtains finished product at 16000 volts after handling.Paper whiteness and opaqueness reach more than 90%.
Embodiment 2
With polypropylene by percentage to the quality: 20%, CaCO3:60%, titanium dioxide: 17%, coupling agent: 0.8%, dispersion agent: 1%, fire retardant: 0.5%, the ultra micro whipping agent: 0.1%, compatilizer: 0.6% in vacuum drying oven dry 24 hours to the raw material water content less than 2%; Above-mentioned dried each component is mixed in tablets press, at room temperature stir earlier cold mixing in the mixing process, being heated to 100 ℃ afterwards, to carry out heat mixed, and the raw material after mixing carries out granulation; Raw material after the granulation is sent in the rolling press screw rod, the heating of the screw rod of rolling press also is controlled in 210 ℃ of the equilibrium temperatures, ultra micro whipping agent in the raw material produces microbubble at this moment, this moment, raw material became molten state (fluid state) under this high temperature, being expressed into stretcher roll through die head again rolls, the speed of rolling mill roller is 50 m/min, and raw material is depressed into the sheet that thickness is 0.3mm, obtains polypropylene stone canvas work in-process; Then polypropylene stone canvas work in-process are carried out the surface high pressure corona treatment, voltage control obtains finished product at 16000 volts after handling.Paper whiteness and opaqueness reach more than 90%.
Embodiment 3
With polypropylene by percentage to the quality: 25%, CaCO3:50%, titanium dioxide: 20%; Auxiliary agent is made up of following component by percentage to the quality: compound coupling agent: 1%, dispersion agent: 1%, fire retardant: 1%, the ultra micro whipping agent: 1%, compatilizer: 1% in vacuum drying oven dry 24 hours, drying temperature was made as 100 ℃, above-mentioned dried each component is mixed in tablets press, at room temperature stir earlier cold mixing in the mixing process, being heated to 110 ℃ afterwards, to carry out heat mixed, and the raw material after mixing carries out granulation; Raw material after the granulation is sent in the rolling press screw rod, the heating of the screw rod of rolling press also is controlled in 220 ℃ of the equilibrium temperatures, ultra micro whipping agent in the raw material produces microbubble at this moment, this moment, raw material became molten state (fluid state) under this high temperature, being expressed into stretcher roll through die head again rolls, the speed of rolling mill roller is 70 m/min, and raw material is depressed into the sheet that thickness is 0.3mm, obtains polypropylene stone canvas work in-process; Then polypropylene stone canvas work in-process are carried out the surface high pressure corona treatment, voltage control obtains finished product at 15000 volts after handling.Paper whiteness and opaqueness reach more than 90%.
Embodiment 4
With polypropylene by percentage to the quality: 25%, CaCO3:60%, titanium dioxide: 12%; Auxiliary agent is made up of following component by percentage to the quality: compound coupling agent: 0.5%, dispersion agent: 0.5%, fire retardant: 0.5%, the ultra micro whipping agent: 0.5%, compatilizer: drying is 24 hours in 1% vacuum drying oven, and drying temperature is made as 100 ℃, above-mentioned dried each component is mixed in tablets press, at room temperature stir earlier cold mixing in the mixing process, being heated to 110 ℃ afterwards, to carry out heat mixed, and the raw material after mixing carries out granulation; Raw material after the granulation is sent in the rolling press screw rod, the heating of the screw rod of rolling press also is controlled in 220 ℃ of the equilibrium temperatures, ultra micro whipping agent in the raw material can produce microbubble this moment, raw material becomes molten state (fluid state) under this high temperature, being expressed into stretcher roll through die head again rolls, the speed of rolling mill roller is 70 m/min, and raw material is depressed into the sheet that thickness is 0.3mm, obtains polypropylene stone canvas work in-process; Then polypropylene stone canvas work in-process are carried out the surface high pressure corona treatment, voltage control obtains finished product at 15000 volts after handling.Paper whiteness and opaqueness reach more than 90%.
The foregoing description is the preferred embodiment for not inventing only, can not limit protection scope of the present invention with this, and the variation of any unsubstantiality that those skilled in the art is done on basis of the present invention and replacement all belong to the present invention's scope required for protection.
Claims (10)
1. polypropylene stone canvas is characterized in that: it is handled by surface corona after rolling by by percentage to the quality following component and forms:
Polypropylene: 10-25%, CaCO
3: 50-75%, titanium dioxide: 10-20%, coupling agent: 0.5-1%, dispersion agent: 0.5-1%, fire retardant: 0.5-1%, ultra micro whipping agent: 0.1-1%, compatilizer: 0.5-1%;
The manufacture craft of described polypropylene stone canvas, it may further comprise the steps:
A: with polypropylene by mass percentage: 10-25%, CaCO3:50-75%, titanium dioxide: 10-20%, coupling agent: 0.5-1%, dispersion agent: 0.5-1%, fire retardant: 0.5-1%, ultra micro whipping agent: 0.1-1%, compatilizer: 0.5-1% in 100 ℃ vacuum drying oven dry 24 hours to the raw material water content less than 2%;
B: above-mentioned dried each component is mixed in tablets press, at room temperature stir earlier cold mixing in the mixing process, being heated to 100-110 ℃ afterwards, to carry out heat mixed, and the raw material after mixing carries out granulation;
C: the raw material after the above-mentioned granulation is sent in the rolling press screw rod, the screw rod heating of rolling press also is controlled in equilibrium temperature 210-220 ℃, ultra micro foaming in the raw material produces microbubble, raw material becomes molten state under this high temperature, being expressed into stretcher roll through die head again rolls, the speed of rolling mill roller is 50～90 m/min, and raw material is depressed into the sheet that thickness is 0.3 ± 3%mm, obtains polypropylene stone canvas work in-process;
E: above-mentioned polypropylene stone canvas work in-process are carried out the surface high pressure corona treatment, and voltage control lies prostrate at 15000-16000, obtains finished product after handling.
2. polypropylene stone canvas according to claim 1 is characterized in that: it is made up of following component by percentage to the quality:
Polypropylene: 25%, CaCO
3: 51%, titanium dioxide: 20%, coupling agent: 1%, dispersion agent: 1%, fire retardant: 0.7%, the ultra micro whipping agent: 0.3%, compatilizer: 1%.
3. polypropylene stone canvas according to claim 1 and 2 is characterized in that: described coupling agent is a kind of in silane coupling agent, the titanate coupling agent.
4. polypropylene stone canvas according to claim 1 and 2 is characterized in that: described dispersion agent is one or more mixing in glyceryl monostearate, Tristearoylglycerol, oleic acid acyl, hydro carbons paraffin, microcrystalline wax, low-molecular-weight wax class, the metallic soap class.
5. polypropylene stone canvas according to claim 1 is characterized in that: described fire retardant is one or more mixing in magnesium hydroxide, aluminium hydroxide, ammonium polyphosphate, eight bromo ether, triphenylphosphate, hexabromocyclododecane, zinc borate, TDE, the encapsulated red phosphorus.
6. polypropylene stone canvas according to claim 1 is characterized in that: described ultra micro whipping agent is a kind of in azo-compound, sulfonyl hydrazines compound, the nitroso compound.
7. polypropylene stone canvas according to claim 1 is characterized in that: described compatilizer is one or more mixing in polyethylene-phenylethene grafted copolymer, polypropylene-phenylethene grafted copolymer, ABS-maleic anhydride graft copolymer, grafted polyvinyl-maleic anhydride copolymer, the polypropylene-maleic anhydride graft copolymer.
8. the manufacture craft of described polypropylene stone canvas as claimed in claim 1, it is characterized in that: it may further comprise the steps:
A: incite somebody to action polypropylene by mass percentage: 10-25%, CaCO
3: 50-75%, titanium dioxide: 10-20%, coupling agent: 0.5-1%, dispersion agent: 0.5-1%, fire retardant: 0.5-1%, ultra micro whipping agent: 0.1-1%, compatilizer: 0.5-1% in 100 ℃ vacuum drying oven dry 24 hours to the raw material water content less than 2%;
B: above-mentioned dried each component is mixed in tablets press, at room temperature stir earlier cold mixing in the mixing process, being heated to 100-110 ℃ afterwards, to carry out heat mixed, and the raw material after mixing carries out granulation;
C: the raw material after the above-mentioned granulation is sent in the rolling press screw rod, the screw rod heating of rolling press also is controlled in equilibrium temperature 210-220 ℃, ultra micro foaming in the raw material produces microbubble, raw material becomes molten state under this high temperature, being expressed into stretcher roll through die head again rolls, the speed of rolling mill roller is 50～90 m/min, and raw material is depressed into the sheet that thickness is 0.3 ± 3%mm, obtains polypropylene stone canvas work in-process;
E: above-mentioned polypropylene stone canvas work in-process are carried out the surface high pressure corona treatment, and voltage control lies prostrate at 15000-16000, obtains finished product after handling.
9. the manufacture craft of polypropylene stone canvas according to claim 8, it is characterized in that: described ultra micro whipping agent be a kind of in azo-compound, sulfonyl hydrazines compound, the nitroso compound, the particle diameter of ultra micro microbubble that whipping agent produces is 8-10 μ m.
10. the manufacture craft of polypropylene stone canvas according to claim 8 is characterized in that: described rolling press is five roll calendars.
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| CN 201110179316 CN102336536B (en) | 2011-06-29 | 2011-06-29 | Polypropylene stone oil painting canvas and preparation method thereof |
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| CN 201110179316 CN102336536B (en) | 2011-06-29 | 2011-06-29 | Polypropylene stone oil painting canvas and preparation method thereof |
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| CN102336536A CN102336536A (en) | 2012-02-01 |
| CN102336536B true CN102336536B (en) | 2013-07-24 |
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| CN103319775B (en) * | 2013-07-09 | 2015-10-28 | 天象集团有限责任公司 | Environmental-protection flame-retardant for wall or panel overlay pastes material and method for making thereof and application |
| CN105421082B (en) * | 2015-11-17 | 2017-11-17 | 无锡凤凰画材有限公司 | A kind of anti-oxidant oil absorption drawing board |
| CN107503145A (en) * | 2017-09-20 | 2017-12-22 | 重庆晋豪美耐皿制品有限公司 | A kind of environmental protection flame retardant stalk advertising cloth and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651649A (en) * | 2004-02-02 | 2005-08-10 | 王锡臣 | Preparation method of environmental protection synthetic paper |
| CN101121801A (en) * | 2007-07-16 | 2008-02-13 | 胡国川 | Non-woven fabrics composite economy master batch and its producing method and device |
| CN101215784A (en) * | 2008-01-18 | 2008-07-09 | 宁波康大投资有限公司 | Nano composite painting canvas dope |
| CN101659770A (en) * | 2009-09-05 | 2010-03-03 | 常州金卡基材有限公司 | Flame-retardant synthetic paper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060564B (en) * | 2010-11-16 | 2013-03-13 | 成都新柯力化工科技有限公司 | Light-weight environmental-friendly stone paper and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651649A (en) * | 2004-02-02 | 2005-08-10 | 王锡臣 | Preparation method of environmental protection synthetic paper |
| CN101121801A (en) * | 2007-07-16 | 2008-02-13 | 胡国川 | Non-woven fabrics composite economy master batch and its producing method and device |
| CN101215784A (en) * | 2008-01-18 | 2008-07-09 | 宁波康大投资有限公司 | Nano composite painting canvas dope |
| CN101659770A (en) * | 2009-09-05 | 2010-03-03 | 常州金卡基材有限公司 | Flame-retardant synthetic paper |
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