CN101104779A - Polylactic acid pressure-sensitive bonding adhesive tape capable of complete biodegradation and preparation method thereof - Google Patents
Polylactic acid pressure-sensitive bonding adhesive tape capable of complete biodegradation and preparation method thereof Download PDFInfo
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- CN101104779A CN101104779A CNA2007100558770A CN200710055877A CN101104779A CN 101104779 A CN101104779 A CN 101104779A CN A2007100558770 A CNA2007100558770 A CN A2007100558770A CN 200710055877 A CN200710055877 A CN 200710055877A CN 101104779 A CN101104779 A CN 101104779A
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Abstract
The invention relates to a polylactic pressure sensitive adhesive tape which can be completely biodegraded and the preparation method. The adhesive tape comprises a back material of polylactic biaxial film, a pressure sensitive adhesive layer on one major surface and a release agent layer on another major surface. The polylactic pressure sensitive adhesive tape is provided with biodegradability and has no pollution to the environment. The invention also provides a method of making the polylactic pressure sensitive adhesive tape, wherein the temperature drops from 100-140 DEG C to 40-70 DEG C in the drying technology, which reduces energy consumption and production cost.
Description
Technical field
The present invention relates to polylactic acid pressure-sensitive bonding adhesive tape of a kind of fully biodegradable and preparation method thereof, belong to field of high polymer material processing.
Background technology
The waste of macromolecular material has caused people's extensive concern day by day to the negative impact that environment brings, and solving serious day by day " white pollution " problem becomes people's question of common concern.Therefore, the development work of degradative plastics now both at home and abroad is very active, and existing part begun suitability for industrialized production, develops quite rapid.Biodegradable plastic had both had the premium properties of performance plastics when using itself, and did not bring pollution to environment again when discarding with the back, can be by the rapid feature of decomposing of various biologies (enzyme).Therefore develop energetically and promote the environment biodegradable polymer, be only the method for taking stopgap measures and effecting a permanent cure, also meet the trend of current macromolecular material greenization.
The initial raw material of synthesizing polylactic acid is a starch, and starch is converted into lactic acid through biological fermentation process, and lactic acid is through polycondensation or ring-opening polymerization obtains poly(lactic acid) through rac-Lactide again.This shows that it is the plant resources that it has utilized recyclability that poly(lactic acid) is different from one of essence of other general-purpose plastics.Can effectively alleviate exhausted day by day petroleum resources like this.And the identical performance of poly(lactic acid) tool and general-purpose plastics is as mechanical property and workability.Particularly large-scale at present production makes the cost of polylactic resin descend, and becoming with respect to other biodegradated polymer materal is dirt cheap.The poly(lactic acid) throughput that has 450,000 tons of annual outputs as U.S. Cargill-Dow company 2007.Therefore, in the last few years, poly(lactic acid) is the concern of the academic boundary of polymer and industrial community extremely, became 21 century hot research object.
Pressuresensitive Tape has a very wide range of applications in people's daily life, and only domestic at present Pressuresensitive Tape annual production is more than 800,000,000 square metre, and with 10% speed increase, consumes greatly.Its base material mostly is petroleum chemicals such as polyester, polyethylene, polypropylene, polyvinyl chloride.(CN1065283A) discloses a kind of pressure-sensitive adhesive tape and manufacture method thereof as patent, the base material of selecting for use is petroleum base polymkeric substance such as polyethylene, polypropylene, polystyrene, polyvinyl chloride, patent (CN1607234A) discloses a kind of pressure-sensitive bonding adhesive tape, and base material also is to be made of the polyolefine that comprises high density polyethylene(HDPE) and new LDPE (film grade).But the adhesive tape that with the polyolefine is base material has caused very big harm in discarded back to environment.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable is provided.
Another object of the present invention provides a kind of method for preparing above-mentioned adhesive tape.
To achieve these goals, at the processing characteristics of poly(lactic acid) self, the solvent of solution-type series of acrylate pressure sensitive adhesive is selected low boiling point solvent for use.Under relatively low temperature, carry out drying treatment.
A kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable, it constitutes: backing is made of the biaxially oriented film of biodegradable polylactic acid, and there is pressure sensitive adhesive layer on a surface of this backing, and on another surface that does not contain pressure sensitive adhesive layer release agent layer is arranged;
The poly(lactic acid) number-average molecular weight of the biaxially oriented film of described backing poly(lactic acid) is 3-20 ten thousand, and polylactic acid membrane thickness is 10 μ m-200 μ m;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester; Its consumption can be 25-50g/m
2
Described solution-type acrylate adhesive is a solvent with acetone and hexane, and the quality proportioning of acetone and hexane is 1: 2; The quality proportioning of this acetone and hexane solvent and acrylic polymer is 100: 30-60;
Described separant is: the methyl vinyl silicone rubber separant; Its consumption can be 0.1-2.0g/m
2
A kind of preparation method of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable, step and condition are as follows:
(1) at two the surperficial separate application separants and the pressure sensitive adhesive of the biaxially oriented film of poly(lactic acid) of backing, can be coated with separant earlier, be coated with pressure sensitive adhesive again; Also can be coated with separant and pressure sensitive adhesive simultaneously, obtain being coated with the film of separant and pressure sensitive adhesive;
The poly(lactic acid) number-average molecular weight of the biaxially oriented film of described backing poly(lactic acid) is 3-20 ten thousand, and polylactic acid membrane thickness is 10 μ m-200 μ m;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester; Its consumption is 25-50g/m
2
Described solution-type acrylate adhesive is a solvent with acetone and hexane, and the quality proportioning of acetone and hexane is 1: 2; The quality proportioning of this acetone and hexane solvent and acrylic polymer is 100: 30-60;
Described separant is: the methyl vinyl silicone rubber separant; Its consumption is 0.1-2.0g/m
2
(2) be coated with the film of separant and pressure sensitive adhesive, carry out drying treatment by casing drying tunnel formula dry heat equipment, drying temperature is followed successively by 40-60 ℃ from the outlet that enters the mouth, 40-60 ℃, 50-70 ℃, 50-60 ℃, 40-50 ℃, be 10-30 second time of drying, obtains a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable.
Beneficial effect
1, polylactic acid pressure-sensitive bonding adhesive tape has fully biodegradable, is decomposed into carbonic acid gas and water with the back compost treatment fully in 1 year, can not pollute environment.
2, the starting materials starch of synthesizing polylactic acid is renewable resources, can replace exhausted day by day petroleum chemicals and fully ensure raw material supply.
3, the drying process of polylactic acid pressure-sensitive bonding adhesive tape drops to 40-70 ℃ from traditional 100-140 ℃, but save energy reduces production costs.
4, solvent toxicity is little, helps environmental protection and improves working conditions.
5,40-70 ℃ cold operation technology has enlarged raw-material use range, and the processing of biodegradable material poly(lactic acid) can be carried out smoothly, has guaranteed quality product safety.
Embodiment
Embodiment 1. (1) is in the number-average molecular weight 30,000 of the biaxially oriented film of poly(lactic acid), and biaxially oriented film thickness is two the surperficial separate application separants and the pressure sensitive adhesive of the biaxially oriented film of poly(lactic acid) of the backing of 10um, and isolation agent is 0.1g/m
2, the consumption of the pressure sensitive adhesive of solution-type polymethacrylate is 25g/m
2, solvent is the mixing solutions of acetone and hexane, and the two quality proportioning is 1: 2, and the quality proportioning of solvent and polymethacrylate is 100: 30, obtains being coated with the film of separant and pressure sensitive adhesive;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester;
Described separant is: the methyl vinyl silicone rubber separant;
(2) film that has been coated with separant and pressure sensitive adhesive carries out drying treatment by casing drying tunnel formula dry heat equipment.The drying process temperature is followed successively by 40 ℃ from the outlet that enters the mouth, and 40 ℃, 50 ℃, 50 ℃, 40 ℃, be 10-30 second time of drying, obtains a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable.
The stripping strength 0.078KN/m of this adhesive tape
Embodiment 2. (1) is in the number-average molecular weight 200,000 of the biaxially oriented film of poly(lactic acid), and biaxially oriented film thickness is two the surperficial separate application separants and the pressure sensitive adhesive of the biaxially oriented film of poly(lactic acid) of the backing of 200um, and isolation agent is 2.0g/m
2, the consumption of the pressure sensitive adhesive of the poly-butylacrylic acid ester of solution-type is 45g/m
2, solvent is the mixing solutions of acetone and hexane, and the two quality proportioning is 1: 2, and the quality proportioning of solvent and poly-butylacrylic acid ester is 100: 50, obtains being coated with the film of separant and pressure sensitive adhesive;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester;
Described separant is: the methyl vinyl silicone rubber separant;
(2) film that has been coated with separant and pressure sensitive adhesive carries out drying treatment by casing drying tunnel formula dry heat equipment.The drying process temperature is followed successively by 60 ℃ from the outlet that enters the mouth, and 60 ℃, 70 ℃, 60 ℃, 50 ℃, be 10-30 second time of drying, obtains a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable.
The stripping strength 0.005KN/m of this adhesive tape.
Embodiment 3. (1) is in the number-average molecular weight 80,000 of the biaxially oriented film of poly(lactic acid), and biaxially oriented film thickness is two the surperficial separate application separants and the pressure sensitive adhesive of the biaxially oriented film of poly(lactic acid) of the backing of 100um, and isolation agent is 1.0g/m
2, the consumption of the pressure sensitive adhesive of the poly-ethyl propylene acid esters of solution-type is 40g/m
2, solvent is the mixing solutions of acetone and hexane, and the two quality proportioning is 1: 2, and the quality proportioning of solvent and poly-ethyl propylene acid esters is 100: 45, obtains being coated with the film of separant and pressure sensitive adhesive;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester;
Described separant is: the methyl vinyl silicone rubber separant;
(2) film that has been coated with separant and pressure sensitive adhesive carries out drying treatment by casing drying tunnel formula dry heat equipment.The drying process temperature is followed successively by 55 ℃ from the outlet that enters the mouth, and 55 ℃, 60 ℃, 55 ℃, 55 ℃, be 10-30 second time of drying, obtains a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable.
The stripping strength 0.032KN/m of this adhesive tape
Embodiment 4. (1) is in the number-average molecular weight 150,000 of the biaxially oriented film of poly(lactic acid), and biaxially oriented film thickness is two the surperficial separate application separants and the pressure sensitive adhesive of the biaxially oriented film of poly(lactic acid) of the backing of 150um, and isolation agent is 0.6g/m
2, the consumption of the pressure sensitive adhesive of the poly-propyl group acrylate of solution-type is 30g/m
2, solvent is the mixing solutions of acetone and hexane, and the two quality proportioning is 1: 2, and the quality proportioning of solvent and poly-propyl group acrylate is 100: 35, obtains being coated with the film of separant and pressure sensitive adhesive;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester;
Described separant is: the methyl vinyl silicone rubber separant;
(2) film that has been coated with separant and pressure sensitive adhesive carries out drying treatment by casing drying tunnel formula dry heat equipment.The drying process temperature is followed successively by 53 ℃ from the outlet that enters the mouth, and 53 ℃, 58 ℃, 53 ℃, 53 ℃, be 10-30 second time of drying, obtains a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable.
The stripping strength 0.031KN/m of this adhesive tape
Embodiment 5. (1) is in the number-average molecular weight 120,000 of the biaxially oriented film of poly(lactic acid), and biaxially oriented film thickness is two the surperficial separate application separants and the pressure sensitive adhesive of the biaxially oriented film of poly(lactic acid) of the backing of 80um, and isolation agent is 1.0g/m
2, the consumption of the pressure sensitive adhesive of the poly-propyl group acrylate of solution-type is 30g/m
2, solvent is the mixing solutions of acetone and hexane, and the two quality proportioning is 1: 2, and the quality proportioning of solvent and poly-propyl group acrylate is 100: 40, obtains being coated with the film of separant and pressure sensitive adhesive;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester;
Described separant is: the methyl vinyl silicone rubber separant;
(2) film that has been coated with separant and pressure sensitive adhesive carries out drying treatment by casing drying tunnel formula dry heat equipment.The drying process temperature is followed successively by 53 ℃ from the outlet that enters the mouth, and 53 ℃, 58 ℃, 53 ℃, 53 ℃, be 10-30 second time of drying, obtains a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable.
The stripping strength 0.009KN/m of this adhesive tape
Embodiment 6. (1) is in the number-average molecular weight 120,000 of the biaxially oriented film of poly(lactic acid), and biaxially oriented film thickness is two the surperficial separate application separants and the pressure sensitive adhesive of the biaxially oriented film of poly(lactic acid) of the backing of 80um, and isolation agent is 0.2g/m
2, the consumption of the pressure sensitive adhesive of the poly-propyl group acrylate of solution-type is 40g/m
2, solvent is the mixing solutions of acetone and hexane, and the two quality proportioning is 1: 2, and the quality proportioning of solvent and poly-propyl group acrylate is 100: 50, obtains being coated with the film of separant and pressure sensitive adhesive;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester;
Described separant is: the methyl vinyl silicone rubber separant;
(2) film that has been coated with separant and pressure sensitive adhesive carries out drying treatment by casing drying tunnel formula dry heat equipment.The drying process temperature is followed successively by 53 ℃ from the outlet that enters the mouth, and 53 ℃, 58 ℃, 53 ℃, 53 ℃, be 10-30 second time of drying, obtains a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable.
The stripping strength 0.2KN/m of this adhesive tape
Embodiment 7. (1) is in the number-average molecular weight 120,000 of the biaxially oriented film of poly(lactic acid), and biaxially oriented film thickness is two the surperficial separate application separants and the pressure sensitive adhesive of the biaxially oriented film of poly(lactic acid) of the backing of 80um, and isolation agent is 0.1g/m
2, the consumption of the pressure sensitive adhesive of the poly-ethyl propylene acid esters of solution-type is 40g/m
2, solvent is the mixing solutions of acetone and hexane, and the two quality proportioning is 1: 2, and the quality proportioning of solvent and poly-ethyl propylene acid esters is 100: 50, obtains being coated with the film of separant and pressure sensitive adhesive;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester;
Described separant is: the methyl vinyl silicone rubber separant;
(2) film that has been coated with separant and pressure sensitive adhesive carries out drying treatment by casing drying tunnel formula dry heat equipment.The drying process temperature is followed successively by 53 ℃ from the outlet that enters the mouth, and 53 ℃, 58 ℃, 53 ℃, 53 ℃, be 10-30 second time of drying, obtains a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable.
The stripping strength 0.31KN/m of this adhesive tape
Embodiment 8. (1) is in the number-average molecular weight 120,000 of the biaxially oriented film of poly(lactic acid), and biaxially oriented film thickness is two the surperficial separate application separants and the pressure sensitive adhesive of the biaxially oriented film of poly(lactic acid) of the backing of 80um, and isolation agent is 0.2g/m
2, the pressure sensitive adhesive consumption of 1: 1 solution-type polyacrylic ester of quality proportioning and poly-propyl group acrylate is 50g/m
2, solvent is the mixing solutions of acetone and hexane, and the two quality proportioning is 1: 2, and the quality proportioning of solvent and polyacrylic ester and poly-propyl group acrylate is 100: 50, obtains being coated with the film of separant and pressure sensitive adhesive;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester;
Described separant is: the methyl vinyl silicone rubber separant;
(2) film that has been coated with separant and pressure sensitive adhesive carries out drying treatment by casing drying tunnel formula dry heat equipment.The drying process temperature is followed successively by 53 ℃ from the outlet that enters the mouth, and 53 ℃, 58 ℃, 53 ℃, 53 ℃, be 10-30 second time of drying, obtains a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable.
The stripping strength 0.13KN/m of this adhesive tape
Embodiment 9. (1) is in the number-average molecular weight 120,000 of the biaxially oriented film of poly(lactic acid), and biaxially oriented film thickness is two the surperficial separate application separants and the pressure sensitive adhesive of the biaxially oriented film of poly(lactic acid) of the backing of 80um, and isolation agent is 0.5g/m
2, the consumption of the pressure sensitive adhesive of 1: 1 solution-type polyacrylic ester of quality proportioning and polymethacrylate is 40g/m
2, solvent is the mixing solutions of acetone and hexane, and the two quality proportioning is 1: 2, and the quality proportioning of solvent and polyacrylic ester and polymethacrylate is 100: 50, obtains being coated with the film of separant and pressure sensitive adhesive;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester;
Described separant is: the methyl vinyl silicone rubber separant;
(2) film that has been coated with separant and pressure sensitive adhesive carries out drying treatment by casing drying tunnel formula dry heat equipment.The drying process temperature is followed successively by 53 ℃ from the outlet that enters the mouth, and 53 ℃, 58 ℃, 53 ℃, 53 ℃, be 10-30 second time of drying, obtains a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable.
The stripping strength 0.09KN/m of this adhesive tape
Embodiment 10. (1) is in the number-average molecular weight 120,000 of the biaxially oriented film of poly(lactic acid), and biaxially oriented film thickness is two the surperficial separate application separants and the pressure sensitive adhesive of the biaxially oriented film of poly(lactic acid) of the backing of 80um, and isolation agent is 0.2g/m
2, the consumption of the pressure sensitive adhesive of 1: 1 solution-type polyacrylic ester of quality proportioning and poly-ethyl propylene acid esters is 50g/m
2, solvent is the mixing solutions of acetone and hexane, and the two quality proportioning is 1: 2, and the quality proportioning of solvent and polyacrylic ester and poly-ethyl propylene acid esters is 100: 50, obtains being coated with the film of separant and pressure sensitive adhesive;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester;
Described separant is: the methyl vinyl silicone rubber separant;
(2) film that has been coated with separant and pressure sensitive adhesive carries out drying treatment by casing drying tunnel formula dry heat equipment.The drying process temperature is followed successively by 53 ℃ from the outlet that enters the mouth, and 53 ℃, 58 ℃, 53 ℃, 53 ℃, be 10-30 second time of drying, obtains a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable.
The stripping strength 0.09KN/m of this adhesive tape.
Claims (2)
1. the polylactic acid pressure-sensitive bonding adhesive tape of a fully biodegradable, it is characterized in that, it constitutes: backing is made of the biaxially oriented film of biodegradable polylactic acid, and there is pressure sensitive adhesive layer on the surface of this backing, and on another surface that does not contain pressure sensitive adhesive layer release agent layer is arranged;
The poly(lactic acid) number-average molecular weight of the biaxially oriented film of described backing poly(lactic acid) is 3-20 ten thousand, and polylactic acid membrane thickness is 10 μ m-200 μ m;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester, consumption is 25-50g/m
2,
Described solution-type acrylate adhesive is a solvent with acetone and hexane, and the aglycon amount proportioning of acetone and hexane is 1: 2; The quality proportioning of this acetone and hexane solvent and acrylic polymer is 100: 30-60;
Described separant is: methyl vinyl silicone rubber separant, consumption are 0.1-2.0g/m
2
2. the preparation method of the polylactic acid pressure-sensitive bonding adhesive tape of a kind of fully biodegradable as claimed in claim 1, step and condition are as follows:
(1) at two the surperficial separate application separants and the pressure sensitive adhesive of the biaxially oriented film of poly(lactic acid) of backing, can be coated with separant earlier, be coated with pressure sensitive adhesive again; Also can be coated with separant and pressure sensitive adhesive simultaneously, obtain being coated with the film of separant and pressure sensitive adhesive;
The poly(lactic acid) number-average molecular weight of the biaxially oriented film of described backing poly(lactic acid) is 3-20 ten thousand, and polylactic acid membrane thickness is 10 μ m-200 μ m;
Described pressure sensitive adhesive is the solution-type acrylic polymer, is polyacrylic ester, polymethacrylate, and poly-ethyl propylene acid esters, at least a in poly-propyl group acrylate and the poly-butylacrylic acid ester; Its consumption is 25-50g/m
2
Described solution-type acrylate adhesive is a solvent with acetone and hexane, and the quality proportioning of acetone and hexane is 1: 2; The quality proportioning of this acetone and hexane solvent and acrylic polymer is 100: 30-60;
Described separant is: the methyl vinyl silicone rubber separant; Its consumption is 0.1-2.0g/m
2
(2) be coated with the film of separant and pressure sensitive adhesive, carry out drying treatment by casing drying tunnel formula dry heat equipment, drying temperature is followed successively by 40-60 ℃ from the outlet that enters the mouth, 40-60 ℃, 50-70 ℃, 50-60 ℃, 40-50 ℃, be 10-30 second time of drying, obtains a kind of polylactic acid pressure-sensitive bonding adhesive tape of fully biodegradable.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100558770A CN101104779A (en) | 2007-07-19 | 2007-07-19 | Polylactic acid pressure-sensitive bonding adhesive tape capable of complete biodegradation and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100558770A CN101104779A (en) | 2007-07-19 | 2007-07-19 | Polylactic acid pressure-sensitive bonding adhesive tape capable of complete biodegradation and preparation method thereof |
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| CN101104779A true CN101104779A (en) | 2008-01-16 |
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| CNA2007100558770A Pending CN101104779A (en) | 2007-07-19 | 2007-07-19 | Polylactic acid pressure-sensitive bonding adhesive tape capable of complete biodegradation and preparation method thereof |
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| CN103328580A (en) * | 2011-01-19 | 2013-09-25 | 东洋制罐集团控股株式会社 | Biodegradable resin composition |
| CN106753017A (en) * | 2017-01-23 | 2017-05-31 | 广东天元实业集团股份有限公司 | A kind of biodegradable Jing Yin tape and preparation method thereof |
| CN106833449A (en) * | 2017-02-13 | 2017-06-13 | 深圳市壹零壹工业设计有限公司 | A kind of biodegradable polydactyl acid adhesive tape and preparation method thereof |
| CN106947403A (en) * | 2017-02-27 | 2017-07-14 | 东莞市蓝恩科技有限公司 | A kind of biodegradable diaphragm |
| CN108340670A (en) * | 2018-03-27 | 2018-07-31 | 深圳市三上高分子环保新材料股份有限公司 | Double stretching polylactic acid film, that is, film coats embrane method processing technology and equipment |
| CN110183984A (en) * | 2019-06-11 | 2019-08-30 | 广州市默孚材料科技有限公司 | Biodegradable tape |
| CN110205044A (en) * | 2019-06-11 | 2019-09-06 | 广州市默孚材料科技有限公司 | Biodegradable tape preparation method and biodegradable tape |
| CN110305597A (en) * | 2019-08-01 | 2019-10-08 | 中国科学院长春应用化学研究所 | A kind of polylactic acid single-coated foam and preparation method thereof |
| US10982090B2 (en) | 2016-06-21 | 2021-04-20 | 3M Innovative Properties Company | Graphic articles comprising polylactic acid polymer based film |
| CN112831304A (en) * | 2021-01-26 | 2021-05-25 | 常州都铂高分子有限公司 | Biodegradable pressure-sensitive adhesive |
| US11066551B2 (en) | 2016-05-20 | 2021-07-20 | 3M Innovative Properties Company | Oriented polylactic acid polymer based film |
| US11254812B2 (en) | 2014-12-22 | 2022-02-22 | 3M Innovative Properties Company | Compositions and films comprising polylactic acid polymer, polyvinyl acetate polymer and plasticizer |
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| CN103328580A (en) * | 2011-01-19 | 2013-09-25 | 东洋制罐集团控股株式会社 | Biodegradable resin composition |
| US11787929B2 (en) | 2014-12-22 | 2023-10-17 | 3M Innovative Properties Company | Compositions and films comprising polylactic acid polymer, polyvinyl acetate polymer and plasticizer |
| US11254812B2 (en) | 2014-12-22 | 2022-02-22 | 3M Innovative Properties Company | Compositions and films comprising polylactic acid polymer, polyvinyl acetate polymer and plasticizer |
| US11066551B2 (en) | 2016-05-20 | 2021-07-20 | 3M Innovative Properties Company | Oriented polylactic acid polymer based film |
| US10982090B2 (en) | 2016-06-21 | 2021-04-20 | 3M Innovative Properties Company | Graphic articles comprising polylactic acid polymer based film |
| CN106753017A (en) * | 2017-01-23 | 2017-05-31 | 广东天元实业集团股份有限公司 | A kind of biodegradable Jing Yin tape and preparation method thereof |
| CN106833449A (en) * | 2017-02-13 | 2017-06-13 | 深圳市壹零壹工业设计有限公司 | A kind of biodegradable polydactyl acid adhesive tape and preparation method thereof |
| CN106947403A (en) * | 2017-02-27 | 2017-07-14 | 东莞市蓝恩科技有限公司 | A kind of biodegradable diaphragm |
| CN108340670A (en) * | 2018-03-27 | 2018-07-31 | 深圳市三上高分子环保新材料股份有限公司 | Double stretching polylactic acid film, that is, film coats embrane method processing technology and equipment |
| CN108340670B (en) * | 2018-03-27 | 2023-09-12 | 深圳市三上高分子环保新材料股份有限公司 | Double-stretching polylactic acid film, namely film coating and processing equipment thereof |
| CN110205044B (en) * | 2019-06-11 | 2021-06-04 | 广州市默孚材料科技有限公司 | Preparation method of biodegradable box sealing adhesive tape and biodegradable box sealing adhesive tape |
| CN110183984B (en) * | 2019-06-11 | 2021-09-14 | 广州市默孚材料科技有限公司 | Biodegradable adhesive tape for sealing box |
| CN110205044A (en) * | 2019-06-11 | 2019-09-06 | 广州市默孚材料科技有限公司 | Biodegradable tape preparation method and biodegradable tape |
| CN110183984A (en) * | 2019-06-11 | 2019-08-30 | 广州市默孚材料科技有限公司 | Biodegradable tape |
| CN110305597A (en) * | 2019-08-01 | 2019-10-08 | 中国科学院长春应用化学研究所 | A kind of polylactic acid single-coated foam and preparation method thereof |
| CN112831304A (en) * | 2021-01-26 | 2021-05-25 | 常州都铂高分子有限公司 | Biodegradable pressure-sensitive adhesive |
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