CN101798000B - Environment-friendly paper container - Google Patents
Environment-friendly paper container Download PDFInfo
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- CN101798000B CN101798000B CN200910006269XA CN200910006269A CN101798000B CN 101798000 B CN101798000 B CN 101798000B CN 200910006269X A CN200910006269X A CN 200910006269XA CN 200910006269 A CN200910006269 A CN 200910006269A CN 101798000 B CN101798000 B CN 101798000B
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- 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
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Abstract
The invention relates to an environment-friendly paper container which comprises a container body and an inner protective layer combined with the container body. The container body is made of paper and comprises an inner surface defining an accommodating space. The inner protective layer is combined on the inner surface of the container main body and comprises a biodegradable component coated along the inner surface. The biodegradable component comprises a main raw material selected from polybutanediol-1,4-succinate. Therefore, by adopting the water resistance, the heat deformation temperature up to about 90 DEG C and the biodegradability of PBS (PolyButanediol Succinate), the direct contact between the container main body and the liquid in a cup is obstructed by using the protective layer to prevent the container body from being soaked. When the environment-friendly paper container is used for holding hot beverages, the container body can be effectively prevented from damage through the protective layer, and the environment-friendly paper container is environment-friendly and practical as the protective layer can be decomposed in the natural environment.
Description
Technical field
The present invention relates to a kind of paper container, particularly relate to the environment-friendly paper container that a kind of surface is coated with the water-fast heat-resisting protective layer of one deck.
Background technology
At present common on the market disposable cup mainly contain plastic cement system with two kinds made of paper, along with environmental consciousness grows to even greater heights, the plastic cups that is not easy in natural environment, to decompose suffers exit gradually, and is main with biodegradability material or the made disposable cup of papery.Wherein, because paper products can decompose in natural environment, easy recovery is made again again, and disposable dixie cup is used as the tyre cup by general eating and drinking establishment, tea shop or cafe widely.
See also shown in Figure 1, be one the explanation an existing dixie cup the structure cross-sectional schematic, an existing dixie cup 1 has a cup 11, and one deck is coated on the protective layer 12 of these cup 11 1 inside faces 111.This protective layer 12 is by low density polyethylene (LDPE) (the low densitypolyethylene with fusion; Abbreviate LDPE as) be applied to the inside face 111 of this cup 11 and form; Because the softening point of LDPE is 80 ℃～101 ℃, and its fusing point is 108 ℃～110 ℃, and the characteristic of acid and alkali resistance corrosion is arranged again; Therefore be suitable as the protective layer 11 between this cup 11 and liquid, can effectively intercept the cup 11 liquid bodies influence of papery.Whereby,, can prevent that glass interior liquid from soaking whole cup 11, cause this cup 11 soft distortion,, make this dixie cup 1 also can be used for the splendid attire hot drink because these protective layer 12 fusing points are higher by this protective layer 12 when in this dixie cup 1 during carrying liquid.
Though be difficult for being soaked distortion or damaged effect when this dixie cup 1 can reach carrying liquid by this protective layer 12 of inside face 111 coatings at this cup 11; But because this protective layer 12 is made by LDPE; Though LDPE has preferable waterproof heat resistant effect; But belong to the plastic cement material that is difficult in natural environment, decomposing, therefore, still have the disappearance of more not environmental protection in the use for these protective layer 12 made dixie cups 1 with LDPE.
In view of this, existing another kind of dixie cup has the protective layer that a cup and one deck are coated on this cup inside face equally, and this protective layer changes by PLA (polylacticacid; Abbreviate PLA as, also be called polylactide) process, though PLA is can be at the Biodegradable material of natural environment decomposition; Be difficult for causing the problem in the environmental protection relatively, but because the softening point (glass transition also is called the glass transition temperature) of PLA is to be about 58 ℃～60 ℃; Resistance to effect of heat is not good; When with this dixie cup splendid attire hot drink, can cause this protective layer to come unstuck, cause the cup direct contact of papery to soak distortion to liquid; Even damaged and can't use, make the protective layer of this PLA material have the relatively poor disappearance of protection effect relatively.
In addition, mostly the existing mode of making dixie cup is protective layer is coated on the paper plate, and the further machine-shaping of paper plate that will be coated with this protective layer more is this dixie cup; When being this protective layer material with PLA, and when being coated in PLA on this paper plate, quality is harder at normal temperatures owing to PLA; And adhesive ability is not good; As easy as rolling off a logly in the process of machine-shaping, peel off, cause the manufacturing acceptance rate extreme difference of this dixie cup, can increase manufacturing cost on the contrary.
In order to improve the not good shortcoming of PLA adhesive ability; Existing another kind of manufacture is to be coated with an interfacial agent layer in this cup surface earlier; This protective layer of PLA material in the coating to increase the adhesive ability that this protective layer combines with this cup through this interfacial agent layer, takes place from the situation that this cup peels off though can reduce this protective layer in this way again; But because mostly interfacial agent is toxic substance; When with this dixie cup carrying liquid, the toxin in the interfacial agent possibly pass this protective layer and ooze out and be discharged in glass interior liquid, and has the disappearance that is detrimental to health easily.
This shows that above-mentioned existing paper container obviously still has inconvenience and defective, and demands urgently further improving in structure and use.In order to solve the problem of above-mentioned existence; Relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly; But do not see always that for a long time suitable design is developed completion, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of environment-friendly paper container of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to; Overcome the defective that existing paper container exists, and a kind of environment-friendly paper container of new structure is provided, technical matters to be solved provides a kind of environmental protection demand that meets; And the predetermined waterproof and the environment-friendly paper container of heat-resisting effect still can be provided, be very suitable for practicality.
The object of the invention and solve its technical matters and adopt following technical scheme to realize.A kind of environment-friendly paper container according to the present invention's proposition; Comprise a vessel and one deck and be combined in the interior protective layer on this vessel, this vessel is made by papery, comprises that one defines one and is installed in the space; And be formed with an inside face that makes this be installed in space and the extraneous opening that is connected; And one with this inside face outside face separately, wherein: protective layer is coating and the inside face that is combined in this vessel in this, and is the biodegradability component that is coated with by a fusion and along this inside face and forming; This biodegradability component comprises a main material, and this main material is to be selected from poly-succinic-1,4-butanediol ester.
The object of the invention and solve its technical matters and also can adopt following technical measures further to realize.
Preferably; Aforesaid environment-friendly paper container, wherein said biodegradability component also comprises an auxiliary material that mixes mutually with this main material, and with total restatement of this biodegradability component; The content of this main material is 90～100wt%, and the content of this auxiliary material is 0～10wt%.
Preferably, aforesaid environment-friendly paper container, the auxiliary material of wherein said biodegradability component are to be selected from poly terephthalic acid/adipic acid/fourth diester, PLA and these a combination.
Preferably; Aforesaid environment-friendly paper container; Wherein this environment-friendly paper container also comprises one deck coating and is combined in the external protection coating of the outside face of this vessel; And this external protection coating is to form by a fusion and along the biodegradability component of this outside face coating, and this biodegradability component comprises a main material, and this main material is to be selected from poly-succinic-1,4-butanediol ester.
Preferably; Aforesaid environment-friendly paper container; The wherein said biodegradability component that is coated on the outside face of this vessel also comprises an auxiliary material that mixes mutually with this main material; And with total restatement of this biodegradability component, the content of this main material is 90～100wt%, and the content of this auxiliary material is 0～10wt%.
Preferably, aforesaid environment-friendly paper container, the auxiliary material of wherein said biodegradability component are to be selected from poly terephthalic acid/adipic acid/fourth diester, PLA and these a combination.
The present invention compared with prior art has tangible advantage and beneficial effect.Know that by above in order to achieve the above object, environment-friendly paper container of the present invention comprises a vessel and one deck and is combined in the interior protective layer on this vessel.This vessel is made by papery, comprises that one defines one and is installed in the space, and is formed with one and makes this inside face that is installed in space and the extraneous opening that is connected, and one with this inside face outside face separately.
Should interior protective layer be coating and the inside face that is combined in this vessel; And be to form by a fusion and along the biodegradability component of this inside face coating; This biodegradability component comprises a main material; And this main material is to be selected from poly-succinic-1,4-butanediol ester (polybutylene-1,4-succinate abbreviate PBS as).
By technique scheme; Environment-friendly paper container of the present invention has following advantage and beneficial effect at least: the present invention forms with poly-succinic-1,4-butanediol ester and is somebody's turn to do interior protective layer; Except reaching as the water-proofness of high molecular polymer, PBS capable of using intercepts vessel that papery processes and this is installed in the liquid direct contact in the space; Can effectively prevent this vessel soaked impaired outside, owing to the HDT Heat Distortion Temperature of PBS has preferable resistance to effect of heat about up to 90 ℃, even during with this cup dress hot drink; This protective layer still is not easy to be destroyed, and can continue to provide actv. to intercept and protection.In addition, when abandoning this cup,, make the present invention have environmental protection and practical effect because the biodegradability of PBS can both decompose this protective layer and this vessel in natural environment.The present invention provides a kind of and meets the environmental protection demand, and the predetermined waterproof and the environment-friendly paper container of heat-resisting effect still can be provided, and it has obvious improvement technically, and has tangible good effect, really is the new design of a novelty, progress, practicality.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of specification sheets, and for let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is the cross-sectional schematic of the existing dixie cup of an explanation.
Fig. 2 is the cross-sectional schematic of explanation environment-friendly paper container one first preferred embodiment of the present invention.
Fig. 3 is the cross-sectional schematic of explanation environment-friendly paper container one second preferred embodiment of the present invention.
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention; Below in conjunction with accompanying drawing and preferred embodiment; To its specific embodiment of environment-friendly paper container, structure, characteristic and the effect thereof that proposes according to the present invention, specify as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can be known to appear in the following detailed description that cooperates with reference to graphic preferred embodiment.Through the explanation of the specific embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the present invention, yet the appended graphic usefulness that only provides reference and explanation be not to be used for the present invention is limited.
See also shown in Figure 2, be one the explanation environment-friendly paper container one first preferred embodiment of the present invention cross-sectional schematic.The environment-friendly paper container 2 of one first preferred embodiment of the present invention comprises a vessel 21, and one deck is combined in the interior protective layer 22 on this vessel 21.At this is that paper container 2 with the dixie cup pattern describes, but the pattern of this paper container 2 is not limited to dixie cup, and this paper container 2 can be containers such as the various cups that can be used for carrying liquid 101 or food, box, bowl, dish.
This vessel 21 is made by papery, comprises that one defines one and is installed in space 210, and is formed with one and makes this inside face 211 that is installed in space 210 and the extraneous opening 212 that is connected, and one with this inside face 211 outside face 213 separately.
The inside face 211 that this biodegradability component is applied to this vessel 21 forms the mode of protective layer 22 in this, with existing PE is applied to the technological identical of dixie cup cup, repeats no more at this.
What be worth explanation is, this biodegradability component can include only the main material of PBS, and the inside face 211 that directly is applied to this vessel 21 with this main material reaches an obstruct and a protection effect that intercepts liquid 101 direct contacts in this vessel 21 and the cup.In addition; This biodegradability component also can comprise an auxiliary material that mixes mutually with this main material again; And this auxiliary material is to be selected from poly terephthalic acid/adipic acid/fourth diester (poly (butylene adipate/terephthalate abbreviates PBAT as), PLA, and these a combination.And with total restatement of this biodegradability component, the content of this main material is 90～100wt%, and the content of this auxiliary material is 0～10wt%.By in PBS, adding flowing power or the fusion index (meltingindex) that little P BAT can adjust this biodegradability component; The visoelasticity of formed interior protective layer 22 is increased, and then increase the adhesive ability of 22 pairs of these vessels 21 of protective layer in this.Adding PLA then can increase the rigidity of protective layer 22 in this, has to assist this vessel 21 to keep the stable effect of size.Wherein, the usage ratio of this main material and this auxiliary material can be adjusted according to actual user demand.
Because the mechanical property of PBS is quite near polypropylene and acrylonitrile-butadiene-styrene copolymer (acrylonitrile-butadiene-styrene; Abbreviate ABS as); Demonstration is compared to other biological degradability material, and the mechanical property of PBS is excellent, and its HDT Heat Distortion Temperature (heat deflectiontemperature; Abbreviate HDT as) can reach about 90 ℃, and also possess the water-proofness of high molecular polymer.Therefore; Use PBS as the biodegradability component of main material form should in during protective layer 22, can intercept this vessel 21 of liquid 101 direct contacts in the cup through the water-proofness of protective layer 22 in this, and can prevent effectively that this vessel 21 from being soaked breakage; Even when these paper container 2 splendid attire hot drinks or heat food; Because the resistance to effect of heat of this protective layer 22 is good, be not easy to be destroyed impaired relatively, and still can provide actv. to intercept and protection effect.In addition, when this paper container 2 was passed into disuse, this protective layer 22 can both decompose at natural environment with this vessel 21, and can meet the environmental protection demand.
Wherein, This vessel 21 should be not limited with the combination of being somebody's turn to do interior protective layer 22; Can directly make vessel 21 with reservation shape; The inside face 211 that again this biodegradability component is applied to this vessel 21 form should in protective layer 22, a wherein surface that also can be earlier the biodegradability component be applied to a sheet of cardboard form should in protective layer 22, the cardboard that will be combined with protective layer 22 in this is more directly processed this paper container 2.
See also shown in Figure 3, be one the explanation environment-friendly paper container one second preferred embodiment of the present invention cross-sectional schematic.The environment-friendly paper container 3 of the present invention's second preferred embodiment; Be with the main difference of above-mentioned first preferred embodiment: this environment-friendly paper container 3 also comprises one deck coating and is combined in the external protection coating 33 of the outside face 312 of this vessel 31 except the interior protective layer 32 of inside face 311 that comprises a vessel 31 and one deck and be combined in this vessel 31.
With the 32 identical ground of protective layer in this; The biodegradability component that forms this external protection coating 33 can include only the main material of PBS, and the outside face 312 that directly is applied to this vessel 31 with this main material reaches this vessel 31 of protection and avoids the obstruct and the protection effect that soaked by extraneous liquid.In addition; This biodegradability component also can comprise an auxiliary material that mixes mutually with this main material again; And this auxiliary material is to be selected from poly terephthalic acid/adipic acid/fourth diester (poly (butyleneadipate/terephthalate abbreviates PBAT as), PLA, and these a combination.And can adjust the flowing power or the fusion index (melting index) of this biodegradability component equally by in PBS, adding little P BAT; Visoelasticity so as to making formed external protection coating 33 increases, and then increases the adhesive ability of 33 pairs of these vessels 21 of this external protection coating.Add PLA and then can increase the rigidity of this external protection coating 33, can assist this vessel 31 to keep the stable effect of size and have.
When liquid 102 that is lower than room temperature with these vessel 31 splendid attire temperature or food; Then be prone to produce many globules that condense 103 at the outside face 312 of this vessel 31; Therefore; By at inside and outside surperficial 311,312 of this vessel 31 this inside and outside protective layers 32,33 being set respectively, except still preventing that liquid 102 from invading and soak this vessel 31 these external protection coating 33 obstruct globules 103 and these outside face 312 direct contacts also capable of using from this inside face 311 by protective layer in this 32; Soak and can effectively protect these vessel 31 inside and outside liquid bodies that all avoid, cause being out of shape or damaged result.
During manufacturing; Can make vessel 31 earlier with reservation shape; Be coated with the biodegradability components and form this inside and outside protective layer 32,33 at inside and outside surperficial 311,312 of this vessel 31 respectively again; Also can be coated with the biodegradability component earlier on the upper and lower surface of a slice official form for filing a lawsuit plate respectively and form this inside and outside protective layer 32,33, the cardboard that will be combined with this inside and outside protective layer 32,33 is more directly processed this paper container 3.
What need supplemental instruction is; PBS as the main material in this biodegradability component is the PBS product that adopts Mitsubishi KCC to produce; And used PBS specification is the PBS product that is selected from the trade name GS pla of the said firm, AZ91, AZ71, AZ61, with and etc. combination.
<Fang Shuixingceshi>
The inside face that is applied to this vessel with the biodegradability component of the PBS that comprises 100wt% form should in protective layer; And Hot Coffee with 95 ℃ of made in view of the above paper container; Left standstill 24 hours, and found that the situation of seepage did not appear in this paper container, in the time of can finding out this paper container hot drink in view of the above; The protective layer of this paper container does not damage, and shows that environment-friendly paper container of the present invention has water-proofness and the resistance to effect of heat that meets functional need really.
<Adhesive ability test>
(1) test method: the standard method according to ASTM D4541 is tested.Respectively several pieces be cut on the paper plate of 1.5cm * 10cm coating one deck by the formed protective layer of the PBS of 100wt% as test specimen A; And on another several pieces onesize paper plates the coating one deck by the formed protective layer of the PLA of 100wt% as test specimen B; Respectively with speed tensile test specimen A and the test specimen B of 300mm/min; Till the protective layer on test specimen A and the test specimen B is peeled off, measure the stretching action power that is applied when peeling off.
Test result shows that test specimen A begins to occur this protective layer at 65g/cm～120g/cm and peels off, and test specimen B begins to occur this protective layer at 30g/cm～40g/cm and peels off, and shows that PBS has stronger adhesive ability compared to PLA.
Can know that by above explanation environment-friendly paper container 2,3 of the present invention can be obtained following effect and advantage thereof, so can reach the object of the invention really:
One, with the main material of PBS as this biodegradability component; Again this biodegradability component is applied to this interior protective layer 22 of inside face 211 formation of this vessel 21; Or inside and outside surperficial 311,312 these inside and outside protective layers 32,33 of formation of this vessel 31; Except this vessel 21,31 of water-proofness protection that still can utilize PBS avoids directly contacting with the liquid or the globule; Cause being soaked or impaired result outside, can also utilize the biodegradability of PBS, when making this paper container 2,3 discarded; This vessel 21,31, interior protective layer 22,32 and external protection coating 33 can both decompose in natural environment, and have practicality and meet the advantage of environmental protection demand.
Two, because the HDT Heat Distortion Temperature of PBS itself is high; When being that main material is when forming this inside and outside protective layer 22,32,33 with it; The HDT Heat Distortion Temperature of this inside and outside protective layer 22,32,33 also is enhanced, and when with these paper container 2,3 splendid attire hot drinks or heat food, this inside and outside protective layer 22,32,33 is difficult for being damaged relatively; And actv. waterproof and barriering effect still can be provided, make the present invention have preferable and higher characteristic and the advantage of practicality of resistance to effect of heat.
Three, the present invention is by forming this inside and outside protective layer 32,33 respectively at inside and outside surperficial 311,312 of this vessel 31 simultaneously; When splendid attire cold drink or cold food; Can also intercept direct contact of the globule that condenses in the air through this external protection coating 33 and soak this vessel 31 with the outside face 312 of this vessel 31; Whereby, more complete waterproof effect can be provided.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be the content that does not break away from technical scheme of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (6)
1. environment-friendly paper container; Comprise a vessel and one deck and be combined in the interior protective layer on this vessel; This vessel is made by papery, comprises that one defines one and is installed in the space, and is formed with an inside face that makes this be installed in space and the extraneous opening that is connected; And one with this inside face outside face separately, it is characterized in that:
Should interior protective layer be coating and the inside face that is combined in this vessel; And be to form by a fusion and along the biodegradability component of this inside face coating; This biodegradability component comprises a main material; And this main material is to be selected from poly-succinic-1,4-butanediol ester, and with total restatement of this biodegradability component, the content of this main material is 90～100wt%; Wherein should in the adhesive ability intensity that combines with this vessel of protective layer be the stretching action power that applied when reaching 65g/cm-120g/cm, this interior protective layer just begins to peel off.
2. environment-friendly paper container as claimed in claim 1 is characterized in that wherein said biodegradability component also comprises an auxiliary material that mixes mutually with this main material, and with total restatement of this biodegradability component, the content of this auxiliary material is no more than 10wt%.
3. environment-friendly paper container as claimed in claim 2, the auxiliary material that it is characterized in that wherein said biodegradability component are that poly terephthalic acid/adipic acid/fourth diester and PLA mix.
4. environment-friendly paper container as claimed in claim 3; It is characterized in that this environment-friendly paper container also comprises one deck coating and is combined in the external protection coating of the outside face of this vessel; And this external protection coating is to form by a fusion and along the biodegradability component of this outside face coating; This biodegradability component comprises a main material, and this main material is to be selected from poly-succinic-1,4-butanediol ester.
5. environment-friendly paper container as claimed in claim 4; It is characterized in that the wherein said biodegradability component that is coated on the outside face of this vessel also comprises an auxiliary material that mixes mutually with this main material; And total restatement with this biodegradability component; The content of this main material is 90～100wt%, and the content of this auxiliary material is no more than 10wt%.
6. environment-friendly paper container as claimed in claim 5, the auxiliary material that it is characterized in that wherein said biodegradability component are at least one that is selected from poly terephthalic acid/adipic acid/fourth diester and the PLA.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910006269XA CN101798000B (en) | 2009-02-10 | 2009-02-10 | Environment-friendly paper container |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910006269XA CN101798000B (en) | 2009-02-10 | 2009-02-10 | Environment-friendly paper container |
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| CN101798000A CN101798000A (en) | 2010-08-11 |
| CN101798000B true CN101798000B (en) | 2012-11-21 |
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| CN200910006269XA Active CN101798000B (en) | 2009-02-10 | 2009-02-10 | Environment-friendly paper container |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105947343A (en) | 2016-06-21 | 2016-09-21 | 丁椒平 | Paper cup and processing technology thereof |
| CN107187689A (en) * | 2017-06-28 | 2017-09-22 | 重庆泰宝纸制品有限公司 | Biodegradable coating dixie cup and its production method |
| CN113512908A (en) * | 2021-07-16 | 2021-10-19 | 浙江安吉天宏纸业有限公司 | Production method of environment-friendly high-performance composite corrugated paper |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5849401A (en) * | 1995-09-28 | 1998-12-15 | Cargill, Incorporated | Compostable multilayer structures, methods for manufacture, and articles prepared therefrom |
| US6183814B1 (en) * | 1997-05-23 | 2001-02-06 | Cargill, Incorporated | Coating grade polylactide and coated paper, preparation and uses thereof, and articles prepared therefrom |
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2009
- 2009-02-10 CN CN200910006269XA patent/CN101798000B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5849401A (en) * | 1995-09-28 | 1998-12-15 | Cargill, Incorporated | Compostable multilayer structures, methods for manufacture, and articles prepared therefrom |
| US6183814B1 (en) * | 1997-05-23 | 2001-02-06 | Cargill, Incorporated | Coating grade polylactide and coated paper, preparation and uses thereof, and articles prepared therefrom |
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| CN101798000A (en) | 2010-08-11 |
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