CN112300590A - Green degradable packing carton of bio-based - Google Patents
Green degradable packing carton of bio-based Download PDFInfo
- Publication number
- CN112300590A CN112300590A CN202011034064.5A CN202011034064A CN112300590A CN 112300590 A CN112300590 A CN 112300590A CN 202011034064 A CN202011034064 A CN 202011034064A CN 112300590 A CN112300590 A CN 112300590A
- Authority
- CN
- China
- Prior art keywords
- parts
- starch
- straw
- bio
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/466—Bio- or photodegradable packaging materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Mechanical Engineering (AREA)
- Wrappers (AREA)
- Biological Depolymerization Polymers (AREA)
- Cartons (AREA)
Abstract
The invention discloses a bio-based green degradable packaging box, which belongs to the technical field of packaging boxes and comprises the following components in parts by weight: 5-15 parts of polylactic acid, 14-16 parts of polyethylene glycol terephthalate, 30-38 parts of starch, 35-45 parts of straw, 14-16 parts of dihydric alcohol, 5-12 parts of dibasic acid, 5-13 parts of butylstannoic acid, 1.5-1.8 parts of titanium dioxide, 1-1.5 parts of n-octyl ferrocene, 10-14 parts of polypropylene and 3-5 parts of lubricant. The polyethylene glycol terephthalate is added, so that the starch, the straw and the polyethylene can be mixed and wrapped, the high-temperature resistance is realized, the generation of harmful substances can be effectively reduced, and the harm to a human body is reduced; the starch and the straw are added, the use of polyethylene is reduced, the environmental pollution can be effectively reduced, the decomposition speed and the decomposition efficiency of the packaging box are accelerated, and the pollution is reduced.
Description
Technical Field
The invention relates to a packaging box, in particular to a bio-based green degradable packaging box, and belongs to the technical field of packaging boxes.
Background
The existing biodegradable packaging box has low degradation speed and degradation rate in the actual use process, and causes certain pollution to the ecological environment; meanwhile, the existing packaging box can decompose harmful substances under the high-temperature condition, thereby causing harm to human bodies.
Disclosure of Invention
The invention mainly aims to solve the defects of the prior art and provide a bio-based green degradable packaging box.
The purpose of the invention can be achieved by adopting the following technical scheme:
a bio-based green degradable packaging box comprises the following components in parts by weight: 5-15 parts of polylactic acid, 14-16 parts of polyethylene glycol terephthalate, 30-38 parts of starch, 35-45 parts of straw, 14-16 parts of dihydric alcohol, 5-12 parts of dibasic acid, 5-13 parts of butylstannoic acid, 1.5-1.8 parts of titanium dioxide, 1-1.5 parts of n-octyl ferrocene, 10-14 parts of polypropylene and 3-5 parts of lubricant.
Preferably, the lubricating agent comprises, by weight, 5-10 parts of polylactic acid, 14-16 parts of polyethylene terephthalate, 30-35 parts of starch, 35-40 parts of straw, 14-16 parts of dihydric alcohol, 5-10 parts of dibasic acid, 5-10 parts of butylstannoic acid, 1.5-1.8 parts of titanium dioxide, 1-1.5 parts of n-octyl ferrocene, 10-13 parts of polypropylene and 3-5 parts of a lubricating agent.
Preferably, the lubricating agent comprises, by weight, 8 parts of polylactic acid, 15 parts of polyethylene terephthalate, 33 parts of starch, 38 parts of straw, 15 parts of dihydric alcohol, 8 parts of dibasic acid, 8 parts of butylstannoic acid, 1.7 parts of titanium dioxide, 1-1.3 parts of n-octyl ferrocene, 12 parts of polypropylene and 4 parts of a lubricating agent.
Preferably, the starch is one or more of sweet potato starch, corn starch and wheat starch.
Preferably, the straw is one or two of corn straw, wheat straw and cotton straw.
Preferably, the addition ratio of the polypropylene to the starch is 3: 20.
Preferably, the lubricant is one or more of vegetable oil or n-butyl stearate.
Preferably, the ratio of the dibasic acid to the butyl stannic acid is 1: 1.
The invention has the beneficial technical effects that: according to the bio-based green degradable packaging box, the polyethylene glycol terephthalate is added, so that starch, straw and polyethylene can be mixed and wrapped, the packaging box is high-temperature resistant, the generation of harmful substances can be effectively reduced, and the harm to a human body is reduced; the starch and the straw are added, the use of polyethylene is reduced, the environmental pollution can be effectively reduced, the decomposition speed and the decomposition efficiency of the packaging box are accelerated, and the pollution is reduced.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail with reference to the following examples, but the embodiments of the present invention are not limited thereto.
The green degradable packing carton of bio-based that this embodiment provided, by weight portion, includes: 5-15 parts of polylactic acid, 14-16 parts of polyethylene glycol terephthalate, 30-38 parts of starch, 35-45 parts of straw, 14-16 parts of dihydric alcohol, 5-12 parts of dibasic acid, 5-13 parts of butylstannoic acid, 1.5-1.8 parts of titanium dioxide, 1-1.5 parts of n-octyl ferrocene, 10-14 parts of polypropylene and 3-5 parts of lubricant.
The composite material comprises, by weight, 5-10 parts of polylactic acid, 14-16 parts of polyethylene glycol terephthalate, 30-35 parts of starch, 35-40 parts of straw, 14-16 parts of dihydric alcohol, 5-10 parts of dibasic acid, 5-10 parts of butylstannoic acid, 1.5-1.8 parts of titanium dioxide, 1-1.5 parts of n-octyl ferrocene, 10-13 parts of polypropylene and 3-5 parts of a lubricant.
The lubricant comprises, by weight, 8 parts of polylactic acid, 15 parts of polyethylene glycol terephthalate, 33 parts of starch, 38 parts of straw, 15 parts of dihydric alcohol, 8 parts of dibasic acid, 8 parts of butylstannoic acid, 1.7 parts of titanium dioxide, 1-1.3 parts of n-octyl ferrocene, 12 parts of polypropylene and 4 parts of lubricant.
The starch is one or more of sweet potato starch, corn starch and wheat starch. The straw is one or two of corn straw, wheat straw and cotton straw. The addition ratio of polypropylene to starch was 3: 20. The lubricant is one or more of vegetable oil or n-butyl stearate. The ratio of the dibasic acid to the butyl stannic acid was 1: 1.
Example 1:
a bio-based green degradable packaging box comprises the following components in parts by weight: 5 parts of polylactic acid, 14 parts of polyethylene terephthalate, 30 parts of starch, 35 parts of straw, 14 parts of dihydric alcohol, 5 parts of dibasic acid, 5 parts of butylstannic acid, 1.5 parts of titanium dioxide, 1 part of n-octyl ferrocene, 10 parts of polypropylene and 3 parts of lubricant.
The preparation process of the bio-based green degradable packaging box comprises the following steps:
step 1: pre-polymerizing polylactic acid, starch, polyethylene glycol terephthalate, straw and dihydric alcohol, and then adding dibasic acid and butylstannoic acid for polymerization;
step 2: carrying out plasma induction on the mixture obtained in the step 1;
and step 3: adding the mixture treated in the step 2 into a stirrer, adding titanium dioxide, n-octyl ferrocene, polypropylene and a lubricant, and continuously stirring uniformly;
and 4, step 4: adding the mixture treated in the step 3 into a double-screw extruder for extrusion granulation;
and 5: and (4) injection molding the degradable granules in the step (4).
Example 2:
a bio-based green degradable packaging box comprises the following components in parts by weight: 7 parts of polylactic acid, 1.5 parts of polyethylene terephthalate, 32 parts of starch, 37 parts of straw, 14.5 parts of dihydric alcohol, 7 parts of dibasic acid, 6 parts of butylstannic acid, 1.6 parts of titanium dioxide, 1.1 parts of n-octyl ferrocene, 11 parts of polypropylene and 3.5 parts of lubricant.
The preparation process of the bio-based green degradable packaging box comprises the following steps:
step 1: pre-polymerizing polylactic acid, starch, straws and dihydric alcohol, and then adding dibasic acid and butylstannoic acid for polymerization;
step 2: carrying out plasma induction on the mixture obtained in the step 1;
and step 3: adding the mixture treated in the step 2 into a stirrer, adding titanium dioxide, n-octyl ferrocene, polypropylene and a lubricant, and continuously stirring uniformly;
and 4, step 4: adding the mixture treated in the step 3 into a double-screw extruder for extrusion granulation;
and 5: and (4) injection molding the degradable granules in the step (4).
Example 3:
a bio-based green degradable packaging box comprises the following components in parts by weight: 10 parts of polylactic acid, 14.6 parts of polyethylene terephthalate, 35 parts of starch, 42 parts of straw, 15 parts of dihydric alcohol, 10 parts of dibasic acid, 10 parts of butylstannic acid, 1.7 parts of titanium dioxide, 1.3 parts of n-octyl ferrocene, 13 parts of polypropylene and 4 parts of lubricant.
The preparation process of the bio-based green degradable packaging box comprises the following steps:
step 1: pre-polymerizing polylactic acid, starch, polyethylene glycol terephthalate, straw and dihydric alcohol, and then adding dibasic acid and butylstannoic acid for polymerization;
step 2: carrying out plasma induction on the mixture obtained in the step 1;
and step 3: adding the mixture treated in the step 2 into a stirrer, adding titanium dioxide, n-octyl ferrocene, polypropylene and a lubricant, and continuously stirring uniformly;
and 4, step 4: adding the mixture treated in the step 3 into a double-screw extruder for extrusion granulation;
and 5: and (4) injection molding the degradable granules in the step (4).
Example 4:
a bio-based green degradable packaging box comprises, by weight, 8 parts of polylactic acid, 15 parts of polyethylene glycol terephthalate, 33 parts of starch, 38 parts of straw, 15 parts of dihydric alcohol, 8 parts of dibasic acid, 8 parts of butylstannoic acid, 1.7 parts of titanium dioxide, 1-1.3 parts of n-octyl ferrocene, 12 parts of polypropylene and 4 parts of a lubricant.
The preparation process of the bio-based green degradable packaging box comprises the following steps:
step 1: pre-polymerizing polylactic acid, starch, straws and dihydric alcohol, and then adding dibasic acid and butylstannoic acid for polymerization;
step 2: carrying out plasma induction on the mixture obtained in the step 1;
and step 3: adding the mixture treated in the step 2 into a stirrer, adding titanium dioxide, n-octyl ferrocene, polypropylene and a lubricant, and continuously stirring uniformly;
and 4, step 4: adding the mixture treated in the step 3 into a double-screw extruder for extrusion granulation;
and 5: and (4) injection molding the degradable granules in the step (4).
Example 5:
a bio-based green degradable packaging box comprises the following components in parts by weight: 15 parts of polylactic acid, 16 parts of polyethylene terephthalate, 38 parts of starch, 45 parts of straw, 16 parts of dihydric alcohol, 12 parts of dibasic acid, 13 parts of butylstannic acid, 1.8 parts of titanium dioxide, 1.5 parts of n-octyl ferrocene, 14 parts of polypropylene and 5 parts of lubricant.
The preparation process of the bio-based green degradable packaging box comprises the following steps:
step 1: pre-polymerizing polylactic acid, starch, straws and dihydric alcohol, and then adding dibasic acid and butylstannoic acid for polymerization;
step 2: carrying out plasma induction on the mixture obtained in the step 1;
and step 3: adding the mixture treated in the step 2 into a stirrer, adding titanium dioxide, n-octyl ferrocene, polypropylene and a lubricant, and continuously stirring uniformly;
and 4, step 4: adding the mixture treated in the step 3 into a double-screw extruder for extrusion granulation;
and 5: and (4) injection molding the degradable granules in the step (4).
In summary, in this embodiment, according to the bio-based green degradable packaging box of this embodiment, as can be seen from embodiments 1 to 5, the bio-based green degradable packaging box prepared in embodiment 4 has the best degradation speed and degradation rate, and does not generate harmful substances to the body. The starch, the straw and the polyethylene can be mixed and wrapped by adding the polyethylene terephthalate, so that the high-temperature resistance is realized, the generation of harmful substances can be effectively reduced, and the harm to a human body is reduced; the starch and the straw are added, the use of polyethylene is reduced, the environmental pollution can be effectively reduced, the decomposition speed and the decomposition efficiency of the packaging box are accelerated, and the pollution is reduced.
The above description is only for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the scope of the present invention.
Claims (8)
1. The bio-based green degradable packaging box is characterized by comprising the following components in parts by weight: 5-15 parts of polylactic acid, 14-16 parts of polyethylene glycol terephthalate, 30-38 parts of starch, 35-45 parts of straw, 14-16 parts of dihydric alcohol, 5-12 parts of dibasic acid, 5-13 parts of butylstannoic acid, 1.5-1.8 parts of titanium dioxide, 1-1.5 parts of n-octyl ferrocene, 10-14 parts of polypropylene and 3-5 parts of lubricant.
2. The bio-based green degradable packaging box according to claim 1, characterized by comprising, by weight, 5-10 parts of polylactic acid, 14-16 parts of polyethylene terephthalate, 30-35 parts of starch, 35-40 parts of straw, 14-16 parts of dihydric alcohol, 5-10 parts of dibasic acid, 5-10 parts of butylstannic acid, 1.5-1.8 parts of titanium dioxide, 1-1.5 parts of n-octylferrocene, 10-13 parts of polypropylene and 3-5 parts of lubricant.
3. The bio-based green degradable packaging box according to claim 1, characterized in that, by weight, 8 parts of polylactic acid, 15 parts of polyethylene terephthalate, 33 parts of starch, 38 parts of straw, 15 parts of dihydric alcohol, 8 parts of dibasic acid, 8 parts of butylstannoic acid, 1.7 parts of titanium dioxide, 1-1.3 parts of n-octyl ferrocene, 12 parts of polypropylene and 4 parts of lubricant.
4. The bio-based green degradable packaging box according to claim 1, wherein the starch is one or more of sweet potato starch, corn starch and wheat starch.
5. The bio-based green degradable packaging box of claim 1, wherein the straw is one or two of corn straw, wheat straw and cotton straw.
6. The bio-based green degradable packaging box of claim 1, wherein the adding ratio of the polypropylene to the starch is 3: 20.
7. The bio-based green degradable package of claim 1, wherein said lubricant is one or more of vegetable oil or n-butyl stearate.
8. The bio-based green degradable packaging box according to claim 1, wherein the adding ratio of the dibasic acid to the butyl stannic acid is 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011034064.5A CN112300590A (en) | 2020-09-27 | 2020-09-27 | Green degradable packing carton of bio-based |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011034064.5A CN112300590A (en) | 2020-09-27 | 2020-09-27 | Green degradable packing carton of bio-based |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112300590A true CN112300590A (en) | 2021-02-02 |
Family
ID=74488662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011034064.5A Pending CN112300590A (en) | 2020-09-27 | 2020-09-27 | Green degradable packing carton of bio-based |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112300590A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116218245A (en) * | 2021-12-03 | 2023-06-06 | 深圳市宏景天科技研发有限公司 | Bio-based green environment-friendly packaging box and production process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725721A (en) * | 2015-03-18 | 2015-06-24 | 陈广田 | Degradable composite film as well as preparation method and application thereof |
| CN107254095A (en) * | 2017-08-02 | 2017-10-17 | 合肥市大卓电力有限责任公司 | Degradable Novel environment-friendlymaterial material of a kind of high mechanical strength and preparation method thereof |
| CN107353503A (en) * | 2017-08-22 | 2017-11-17 | 芜湖蓝天工程塑胶有限公司 | Biodegradable packaging box and preparation method thereof |
| CN107603174A (en) * | 2017-08-08 | 2018-01-19 | 安徽泰诺塑胶有限公司 | A kind of degradable once plastic cup |
| CN108003394A (en) * | 2017-12-21 | 2018-05-08 | 苏州星火丰盈环保包装有限公司 | A kind of degradable package and its production technology |
| CN108456407A (en) * | 2018-02-08 | 2018-08-28 | 合肥达户电线电缆科技有限公司 | A kind of degradable package material and preparation method thereof |
-
2020
- 2020-09-27 CN CN202011034064.5A patent/CN112300590A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725721A (en) * | 2015-03-18 | 2015-06-24 | 陈广田 | Degradable composite film as well as preparation method and application thereof |
| CN107254095A (en) * | 2017-08-02 | 2017-10-17 | 合肥市大卓电力有限责任公司 | Degradable Novel environment-friendlymaterial material of a kind of high mechanical strength and preparation method thereof |
| CN107603174A (en) * | 2017-08-08 | 2018-01-19 | 安徽泰诺塑胶有限公司 | A kind of degradable once plastic cup |
| CN107353503A (en) * | 2017-08-22 | 2017-11-17 | 芜湖蓝天工程塑胶有限公司 | Biodegradable packaging box and preparation method thereof |
| CN108003394A (en) * | 2017-12-21 | 2018-05-08 | 苏州星火丰盈环保包装有限公司 | A kind of degradable package and its production technology |
| CN108456407A (en) * | 2018-02-08 | 2018-08-28 | 合肥达户电线电缆科技有限公司 | A kind of degradable package material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116218245A (en) * | 2021-12-03 | 2023-06-06 | 深圳市宏景天科技研发有限公司 | Bio-based green environment-friendly packaging box and production process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106519631B (en) | A kind of antibacterial degradable packaging material for food and its preparation | |
| CN101516996B (en) | Masterbatch and polymer composition | |
| CN101717537B (en) | Polyolefin film and manufacturing method thereof | |
| CN106883578A (en) | A kind of antibacterial degradable fresh-keeping foodstuff packaging material and its preparation | |
| CN101580642A (en) | Full-biodegradation natural polymer alloy and preparation method thereof | |
| US20150218367A1 (en) | Extrudable composition derived from renewable resources | |
| CN110845832A (en) | Biodegradable film for inner package of sanitary product | |
| CN112300590A (en) | Green degradable packing carton of bio-based | |
| CN111777845A (en) | Food-grade antibacterial antistatic PLA material and preparation method thereof | |
| WO2021080319A1 (en) | Renewable resin composition and product manufactured from same | |
| CN1995136A (en) | Process for preparing high tenacious biodegradable composite material | |
| EP3162841B1 (en) | A biodegradable biocompostable biodigestible plastic | |
| KR20150068364A (en) | Extrudable composition derived from renewable resources | |
| CN112812518A (en) | Thermoplastic biodegradable plastic and preparation method thereof | |
| CN100509945C (en) | Biodegradeable plastics and preparing method thereof | |
| CN112839987B (en) | Method for producing carbon dioxide neutral and biodegradable polymers and packaging products produced thereby | |
| CN103819739A (en) | Preparation method of degradable environment-friendly shopping bag | |
| JP2017095545A (en) | Process for preparing biodegradable or biocompostable or biodigestible plastic | |
| CN111057274A (en) | High-filling starch-based thermoplastic composite material and preparation method thereof | |
| CN109021304A (en) | A kind of degradable food grade wheat plastic film | |
| TW201336924A (en) | Degradable polylactic acid plant fiber composite material | |
| KR101420823B1 (en) | A biodegradable polystyrene sheet and a manufacturing method thereof | |
| CN112011163A (en) | Biodegradable polyester and preparation method thereof | |
| CN112280188A (en) | Polypropylene composition and preparation method thereof | |
| CN106496967A (en) | A kind of high obstructing degradable packaging material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210202 |
|
| RJ01 | Rejection of invention patent application after publication |