CN116122076A - Preservative paper capable of catalyzing ethylene decomposition and production method thereof - Google Patents
Preservative paper capable of catalyzing ethylene decomposition and production method thereof Download PDFInfo
- Publication number
- CN116122076A CN116122076A CN202310210669.2A CN202310210669A CN116122076A CN 116122076 A CN116122076 A CN 116122076A CN 202310210669 A CN202310210669 A CN 202310210669A CN 116122076 A CN116122076 A CN 116122076A
- Authority
- CN
- China
- Prior art keywords
- parts
- ethylene
- plasticizer
- production method
- mildew
- 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.)
- Withdrawn
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- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000005977 Ethylene Substances 0.000 title claims abstract description 43
- 239000003755 preservative agent Substances 0.000 title claims abstract description 19
- 230000002335 preservative effect Effects 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 12
- 239000002250 absorbent Substances 0.000 claims abstract description 17
- 230000002745 absorbent Effects 0.000 claims abstract description 17
- 239000004014 plasticizer Substances 0.000 claims abstract description 16
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims abstract description 11
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims abstract description 11
- DCUFMVPCXCSVNP-UHFFFAOYSA-N methacrylic anhydride Chemical compound CC(=C)C(=O)OC(=O)C(C)=C DCUFMVPCXCSVNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 241000186359 Mycobacterium Species 0.000 claims abstract description 8
- 230000003449 preventive effect Effects 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 8
- 230000003197 catalytic effect Effects 0.000 claims abstract description 7
- 239000003112 inhibitor Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 5
- QRMPRVXWPCLVNI-UHFFFAOYSA-N Curcumenol Natural products C1C(=C)C2CCC(C)C22CC(C(C)C)C1(O)O2 QRMPRVXWPCLVNI-UHFFFAOYSA-N 0.000 claims abstract description 4
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims abstract description 4
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims abstract description 4
- 229960000411 camphor oil Drugs 0.000 claims abstract description 4
- 239000010624 camphor oil Substances 0.000 claims abstract description 4
- ISFMXVMWEWLJGJ-NZBPQXDJSA-N curcumenol Chemical compound CC1=C[C@](O2)(O)C(=C(C)C)C[C@@]22[C@@H](C)CC[C@H]21 ISFMXVMWEWLJGJ-NZBPQXDJSA-N 0.000 claims abstract description 4
- 239000000419 plant extract Substances 0.000 claims abstract description 4
- 239000000600 sorbitol Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 229960000583 acetic acid Drugs 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 239000007888 film coating Substances 0.000 claims description 3
- 238000009501 film coating Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000012362 glacial acetic acid Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000000376 reactant Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 3
- 230000007480 spreading Effects 0.000 claims description 3
- 239000011550 stock solution Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000004888 barrier function Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 231100000956 nontoxicity Toxicity 0.000 abstract description 3
- 230000035699 permeability Effects 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 3
- 235000012055 fruits and vegetables Nutrition 0.000 description 19
- 238000000034 method Methods 0.000 description 8
- 238000003860 storage Methods 0.000 description 5
- 230000005070 ripening Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006735 epoxidation reaction Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- -1 molecular hooves Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Paper (AREA)
Abstract
The invention discloses a preservative paper capable of catalyzing ethylene decomposition and a production method thereof, comprising PET resin, hydroxyethyl methacrylate, a plasticizer, a mildew inhibitor, methacrylic anhydride and an ethylene absorbent, and is characterized by comprising the following raw materials in parts by weight: 200-350 parts of PET resin, 50-65 parts of hydroxyethyl methacrylate, 60-85 parts of plasticizer, 50-70 parts of mildew preventive, 70-90 parts of methacrylic anhydride and 90-120 parts of ethylene absorbent, wherein the plasticizer is water-soluble polyhydroxy glycerol, sorbitol and polyethylene glycol with the weight ratio of 1:1:2, the mildew inhibitor is one of natural plant extract citric acid, curcumenol and camphor oil, and the ethylene absorbent is prepared from mycobacterium as raw material. The invention has the advantages of small dosage, high catalytic efficiency, long acting time, safety, no toxicity, environmental protection, and good barrier property, ventilation and moisture permeability of the preservative film, and can play roles of eliminating peculiar smell, self-cleaning and preventing mildew.
Description
Technical Field
The invention relates to the technical field of fruit and vegetable fresh-keeping, in particular to fresh-keeping paper capable of catalyzing ethylene decomposition and a production method thereof.
Background
Along with the continuous improvement of living standard, consumers have not only increased the demand of fruits and vegetables (for short, fruits and vegetables), but also put forward higher demands on the freshness of fruits and vegetables. The picked fruits and vegetables are still living bodies, and in order to maintain the life activities, the fruits and vegetables continuously breathe to generate heat and moisture. Because the fruits and vegetables are fresh and tender, the fruits and vegetables are easy to deteriorate and rot and lose during the transportation, sales and storage processes after picking, and great economic losses are brought to production and operators.
Ethylene, also known as a plant ripening hormone, is a natural metabolite produced at a specific location within the body of fruits and vegetables. Accumulation of ethylene in the package of fresh harvested product and ripening of exogenous ethylene can excite their physiological activity, accelerate respiration rate, ripening and accelerated decay of fruit, resulting in reduced storage time and loss of product. The high concentration of ethylene can strengthen the respiration of fruits and vegetables, accelerate the ripening and aging processes, and is unfavorable for the storage, transportation and fresh-keeping of fruits and vegetables. Therefore, the concentration of ethylene gas should be strictly controlled in the fruit and vegetable fresh-keeping process to prolong the shelf life of the fruits and vegetables. At present, many methods for absorbing ethylene gas are mainly divided into physical absorption, chemical absorption and biological absorption. The physical adsorbent mainly comprises active carbon with porous structure, mineral substances, molecular hooves, synthetic resin and the like; the chemical adsorbent is chemically bonded with ethylene to adsorb ethylene. The chemical adsorbents currently studied are Ag (I), potassium permanganate and the like. The fruit and vegetable are basically preserved by adopting physical and chemical methods in China, but the physical method has higher cost and complex operation, is not beneficial to large-scale popularization and use, and the chemical preservation method limits the use of the fruit and vegetable due to the problems of toxic and side effects of chemical substance residues on human bodies, environmental pollution and the like. The biological fresh-keeping substance is directly derived from organisms, has good safety, can be biodegraded generally, does not cause secondary pollution and gradually becomes a research hotspot in countries around the world.
Disclosure of Invention
The invention aims to provide preservative paper capable of catalyzing ethylene decomposition and a production method thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the preservative paper capable of catalyzing ethylene decomposition and the production method thereof comprise PET resin, hydroxyethyl methacrylate, plasticizer, mildew inhibitor, methacrylic anhydride and ethylene absorbent, and are characterized by comprising the following raw materials in parts by weight: 200-350 parts of PET resin, 50-65 parts of hydroxyethyl methacrylate, 60-85 parts of plasticizer, 50-70 parts of mildew preventive, 70-90 parts of methacrylic anhydride and 90-120 parts of ethylene absorbent.
Further, the plasticizer is water-soluble polyhydroxy glycerol, sorbitol and polyethylene glycol with a weight ratio of 1:1:2, mixing the materials in proportion.
Furthermore, the mildew inhibitor is one of natural plant extract citric acid, curcumenol and camphor oil.
Further, the ethylene absorbent is prepared from mycobacterium, which is mycobacterium rosei.
Further, the method comprises the following specific steps:
(1) Absolute ethanol and glacial acetic acid are mixed according to the following ratio of 2: mixing in a proportion of 1.5, regulating the pH value to be 4, stirring for 30-40 min, injecting water, stirring, and standing for 1H;
(2) Adding a plasticizer and a mildew preventive into the mixed solution, heating to 60-65 ℃, reacting for 1.5-2 h, and evaporating to 50% of the volume of the stock solution to obtain a film coating solution;
(3) Placing the reactant in the step (2) into a reaction kettle, keeping the constant temperature of 150-1160 ℃ for 30 hours, and then cooling the substances in the high-pressure kettle to room temperature;
(4) Adding n-hexane under ice bath condition for precipitation, filtering, and drying to obtain membrane material;
(5) Mixing the film material with ethylene absorbent, adding methacrylic anhydride and hydroxyethyl methacrylate, uniformly mixing, spreading on a transparent glass plate, and naturally volatilizing after ultraviolet irradiation to obtain the preservative film.
Compared with the prior art, the invention has the following beneficial effects:
the ethylene absorbent can catalyze the epoxidation of ethylene, and the ethylene gas is fixed on a specific film layer to prepare the ethylene-adsorbed preservative film for absorbing ethylene in the storage of fruits and vegetables. The method has the advantages of small dosage, high catalytic efficiency, long acting time, safety, no toxicity, environmental protection, better barrier property, ventilation and moisture permeability of the preservative film, and can play roles of eliminating peculiar smell and self-cleaning and preventing mildew, thereby effectively prolonging the food fresh-keeping time, providing a potential novel means for fruit and vegetable fresh-keeping, having better use prospect, and being simple in preparation method and suitable for industrial production.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any creative effort based on the embodiments of the present invention are within the protection scope of the present invention.
The preservative paper capable of catalyzing ethylene decomposition and the production method thereof, provided by the embodiment of the invention, comprise PET resin, hydroxyethyl methacrylate, plasticizer, mildew inhibitor, methacrylic anhydride and ethylene absorbent, and are characterized by comprising the following raw materials in parts by weight: 200-350 parts of PET resin, 50-65 parts of hydroxyethyl methacrylate, 60-85 parts of plasticizer, 50-70 parts of mildew preventive, 70-90 parts of methacrylic anhydride and 90-120 parts of ethylene absorbent.
According to the scheme, the plasticizer is water-soluble polyhydroxy glycerol, sorbitol and polyethylene glycol, and the ratio of the plasticizer to the polyethylene glycol is 1:1:2, wherein the mildew inhibitor is one of natural plant extract citric acid, curcumenol and camphor oil, the ethylene absorbent is prepared by taking mycobacterium as a raw material, and the mycobacterium is mycobacterium rosei, and comprises the following specific steps:
(1) Absolute ethanol and glacial acetic acid are mixed according to the following ratio of 2: mixing in a proportion of 1.5, regulating the pH value to be 4, stirring for 30-40 min, injecting water, stirring, and standing for 1H;
(2) Adding a plasticizer and a mildew preventive into the mixed solution, heating to 60-65 ℃, reacting for 1.5-2 h, and evaporating to 50% of the volume of the stock solution to obtain a film coating solution;
(3) Placing the reactant in the step (2) into a reaction kettle, keeping the constant temperature of 150-1160 ℃ for 30 hours, and then cooling the substances in the high-pressure kettle to room temperature;
(4) Adding n-hexane under ice bath condition for precipitation, filtering, and drying to obtain membrane material;
(5) Mixing the film material with ethylene absorbent, adding methacrylic anhydride and hydroxyethyl methacrylate, uniformly mixing, spreading on a transparent glass plate, and naturally volatilizing after ultraviolet irradiation to obtain the preservative film.
The ethylene absorbent can catalyze the epoxidation of ethylene, and the ethylene gas is fixed on a specific film layer to prepare the ethylene-adsorbed preservative film for absorbing ethylene in the storage of fruits and vegetables. The method has the advantages of small dosage, high catalytic efficiency, long acting time, safety, no toxicity, environmental protection, better barrier property, ventilation and moisture permeability of the preservative film, and can play roles of eliminating peculiar smell and self-cleaning and preventing mildew, thereby effectively prolonging the food fresh-keeping time, providing a potential novel means for fruit and vegetable fresh-keeping, having better use prospect, and being simple in preparation method and suitable for industrial production.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited to the above-described embodiment, but may be modified or substituted for some of the technical features described in the above-described embodiments by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The preservative paper capable of catalyzing ethylene decomposition and the production method thereof comprise PET resin, hydroxyethyl methacrylate, plasticizer, mildew inhibitor, methacrylic anhydride and ethylene absorbent, and are characterized by comprising the following raw materials in parts by weight: 200-350 parts of PET resin, 50-65 parts of hydroxyethyl methacrylate, 60-85 parts of plasticizer, 50-70 parts of mildew preventive, 70-90 parts of methacrylic anhydride and 90-120 parts of ethylene absorbent.
2. The catalytic ethylene decomposition preservative paper and the production method thereof according to claim 1, wherein the plasticizer is water-soluble polyhydroxy compounds such as glycerol, sorbitol and polyethylene glycol in a ratio of 1:1:2, mixing the materials in proportion.
3. The catalytic ethylene decomposition preservative paper and the production method thereof according to claim 1, wherein the mildew preventive is one of natural plant extracts of citric acid, curcumenol and camphor oil.
4. The catalytic ethylene decomposition preservative paper and the production method thereof according to claim 1, wherein the ethylene absorbent is prepared from mycobacterium which is mycobacterium rosei.
5. The catalytic ethylene decomposition preservative paper and the production method thereof according to claim 1, wherein the specific steps are as follows:
(1) Absolute ethanol and glacial acetic acid are mixed according to the following ratio of 2: mixing in a proportion of 1.5, regulating the pH value to be 4, stirring for 30-40 min, injecting water, stirring, and standing for 1H;
(2) Adding a plasticizer and a mildew preventive into the mixed solution, heating to 60-65 ℃, reacting for 1.5-2 h, and evaporating to 50% of the volume of the stock solution to obtain a film coating solution;
(3) Placing the reactant in the step (2) into a reaction kettle, keeping the constant temperature of 150-1160 ℃ for 30 hours, and then cooling the substances in the high-pressure kettle to room temperature;
(4) Adding n-hexane under ice bath condition for precipitation, filtering, and drying to obtain membrane material;
(5) Mixing the film material with ethylene absorbent, adding methacrylic anhydride and hydroxyethyl methacrylate, uniformly mixing, spreading on a transparent glass plate, and naturally volatilizing after ultraviolet irradiation to obtain the preservative film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310210669.2A CN116122076A (en) | 2023-03-07 | 2023-03-07 | Preservative paper capable of catalyzing ethylene decomposition and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310210669.2A CN116122076A (en) | 2023-03-07 | 2023-03-07 | Preservative paper capable of catalyzing ethylene decomposition and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116122076A true CN116122076A (en) | 2023-05-16 |
Family
ID=86302909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310210669.2A Withdrawn CN116122076A (en) | 2023-03-07 | 2023-03-07 | Preservative paper capable of catalyzing ethylene decomposition and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116122076A (en) |
-
2023
- 2023-03-07 CN CN202310210669.2A patent/CN116122076A/en not_active Withdrawn
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20230516 |
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