CN104479199A - Medical film material and preparation method thereof - Google Patents
Medical film material and preparation method thereof Download PDFInfo
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- CN104479199A CN104479199A CN201410696225.5A CN201410696225A CN104479199A CN 104479199 A CN104479199 A CN 104479199A CN 201410696225 A CN201410696225 A CN 201410696225A CN 104479199 A CN104479199 A CN 104479199A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- 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
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Materials For Medical Uses (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a medical film material and a preparation method thereof, and belongs to the field of medical materials. The medical film material comprises the following components in parts by weight: 15-20 parts of polyethylene liquid, 10-18 parts of polypropylene, 2-6 parts of polyamide, 1-3 parts of pimaric acid, 2-6 parts of maleic anhydride, 1-4 parts of propyl tri(dioctyl pyrophosphato) titanate, 2-5 parts of zinc stearate, 4-8 parts of potassium citrate and 1-2 parts of lemon oil. The film material disclosed by the invention is safe and environment-friendly, and has good solvent resistance and heat resistance; and the highest heat-resistance temperature can reach 150 DEG C.
Description
Technical field
The invention belongs to medical material tech field, be specifically related to a kind of medical thin-film material and preparation method thereof.
Background technology
Film is generally made with polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, for packaging or as coating layer.The commercially shared share of plastic wrapping and plastic packet product is increasing, particularly composite plastic soft packaging, the fields such as food, medicine, chemical industry are widely used in, wherein maximum with food product pack proportion, such as drink pack, quickfrozen food packaging, cooking food packaging, snack food product packaging etc., ratio shared by medical package is taken second place, and these products all bring great convenience to people's life.
Conventional plastics film has polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), polyester film (PET), polypropylene (PP), nylon etc.Various performance of plastic film is different, and the purposes as wrapping material is also different.And namely the primary performance requriements of medical grade film in use separates out without toxic substance, secondly also require that film has excellent solvent resistance and thermotolerance.And the solvent resistance of current existing medical film and thermotolerance poor, have much room for improvement.
In sum, the deficiency solving prior art existence has become this area technical problem urgently to be resolved hurrily.
Summary of the invention
The present invention, in order to solve the deficiencies in the prior art, provides a kind of medical thin-film material and preparation method thereof, and this thin-film material has good solvent resistance and thermotolerance, and safety and environmental protection.
The technical solution used in the present invention is as follows:
Medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 15-20 part, polypropylene 10-18 part, polymeric amide 2-6 part, pimaric acid 1-3 part, maleic anhydride 2-6 part, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 1-4 part, Zinic stearas 2-5 part, Tripotassium Citrate 4-8 part, lemon oil 1-2 part.
Described medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 16-19 part, polypropylene 11-17 part, kymene-5 parts, pimaric acid 2-3 part, maleic anhydride 2-5 part, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2-4 part, Zinic stearas 3-5 part, Tripotassium Citrate 5-7 part, lemon oil 1-2 part.
Described medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 17-18 part, polypropylene 12-16 part, kymene-4 parts, pimaric acid 2-3 part, maleic anhydride 3-4 part, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2-3 part, Zinic stearas 3-4 part, Tripotassium Citrate 5-6 part, lemon oil 1-2 part.
Described medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 16 parts, polypropylene 11 parts, kymene part, pimaric acid 2 parts, maleic anhydride 2 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2 parts, Zinic stearas 3 parts, Tripotassium Citrate 5 parts, lemon oil 1 part.
Described medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 19 parts, polypropylene 17 parts, polymeric amide 5 parts, pimaric acid 3 parts, maleic anhydride 5 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 4 parts, Zinic stearas 5 parts, Tripotassium Citrate 7 parts, lemon oil 2 parts.
Described medical thin-film material comprises the following component according to weight parts: polyethylene liquid 17 parts, polypropylene 12 parts, kymene part, pimaric acid 2 parts, maleic anhydride 3 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2 parts, Zinic stearas 3 parts, Tripotassium Citrate 5 parts, lemon oil 1 part.
Described medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 18 parts, polypropylene 16 parts, polymeric amide 4 parts, pimaric acid 3 parts, maleic anhydride 4 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 3 parts, Zinic stearas 4 parts, Tripotassium Citrate 6 parts, lemon oil 2 parts.
The preparation method of described medical thin-film material, comprise the steps: according to weight proportion, polyethylene liquid, polypropylene, polymeric amide and lemon oil are mixed, be warming up to 105-118 DEG C, successively pimaric acid, maleic anhydride, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, Zinic stearas and Tripotassium Citrate are added wherein again, stir 20-40min, after in 150-160 DEG C of extruding pelletization, again through calendering formation, obtain described medical thin-film material.
compared with prior art, its beneficial effect is in the present invention:the first, thin-film material safety and environmental protection of the present invention, has good solvent resistance and thermotolerance, and the upper limit temperature of heat tolerance can up to 150 DEG C; The second, thin-film material of the present invention has good mechanical property; 3rd, preparation method of the present invention is simple, is suitable for applying on a large scale.
Embodiment
Below in conjunction with embodiment, set forth the present invention further.
embodiment 1
Medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 15 parts, polypropylene 10 parts, polymeric amide 2 parts, pimaric acid 1 part, maleic anhydride 2 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 1 part, Zinic stearas 2 parts, Tripotassium Citrate 4 parts, lemon oil 1 part.
The preparation method of described medical thin-film material, comprise the steps: according to weight proportion, polyethylene liquid, polypropylene, polymeric amide and lemon oil are mixed, be warming up to 105 DEG C, successively pimaric acid, maleic anhydride, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, Zinic stearas and Tripotassium Citrate are added wherein again, stir 20min, after in 150 DEG C of extruding pelletizations, again through calendering formation, obtain described medical thin-film material.
embodiment 2
Medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 20 parts, polypropylene 18 parts, polyamide 6 part, pimaric acid 3 parts, maleic anhydride 6 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 4 parts, Zinic stearas 5 parts, Tripotassium Citrate 8 parts, lemon oil 2 parts.
The preparation method of described medical thin-film material, comprise the steps: according to weight proportion, polyethylene liquid, polypropylene, polymeric amide and lemon oil are mixed, be warming up to 118 DEG C, successively pimaric acid, maleic anhydride, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, Zinic stearas and Tripotassium Citrate are added wherein again, stir 40min, after in 160 DEG C of extruding pelletizations, again through calendering formation, obtain described medical thin-film material.
embodiment 3
Medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 16 parts, polypropylene 11 parts, kymene part, pimaric acid 2 parts, maleic anhydride 2 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2 parts, Zinic stearas 3 parts, Tripotassium Citrate 5 parts, lemon oil 1 part.
The preparation method of described medical thin-film material, comprise the steps: according to weight proportion, polyethylene liquid, polypropylene, polymeric amide and lemon oil are mixed, be warming up to 110 DEG C, successively pimaric acid, maleic anhydride, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, Zinic stearas and Tripotassium Citrate are added wherein again, stir 30min, after in 155 DEG C of extruding pelletizations, again through calendering formation, obtain described medical thin-film material.
embodiment 4
Medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 19 parts, polypropylene 17 parts, polymeric amide 5 parts, pimaric acid 3 parts, maleic anhydride 5 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 4 parts, Zinic stearas 5 parts, Tripotassium Citrate 7 parts, lemon oil 2 parts.
The preparation method of described medical thin-film material, comprise the steps: according to weight proportion, polyethylene liquid, polypropylene, polymeric amide and lemon oil are mixed, be warming up to 108 DEG C, successively pimaric acid, maleic anhydride, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, Zinic stearas and Tripotassium Citrate are added wherein again, stir 22min, after in 152 DEG C of extruding pelletizations, again through calendering formation, obtain described medical thin-film material.
embodiment 5
Medical thin-film material comprises the following component according to weight parts: polyethylene liquid 17 parts, polypropylene 12 parts, kymene part, pimaric acid 2 parts, maleic anhydride 3 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2 parts, Zinic stearas 3 parts, Tripotassium Citrate 5 parts, lemon oil 1 part.
The preparation method of described medical thin-film material, comprise the steps: according to weight proportion, polyethylene liquid, polypropylene, polymeric amide and lemon oil are mixed, be warming up to 112 DEG C, successively pimaric acid, maleic anhydride, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, Zinic stearas and Tripotassium Citrate are added wherein again, stir 26min, after in 154 DEG C of extruding pelletizations, again through calendering formation, obtain described medical thin-film material.
embodiment 6
Medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 18 parts, polypropylene 16 parts, polymeric amide 4 parts, pimaric acid 3 parts, maleic anhydride 4 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 3 parts, Zinic stearas 4 parts, Tripotassium Citrate 6 parts, lemon oil 2 parts.
The preparation method of described medical thin-film material, comprise the steps: according to weight proportion, polyethylene liquid, polypropylene, polymeric amide and lemon oil are mixed, be warming up to 116 DEG C, successively pimaric acid, maleic anhydride, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, Zinic stearas and Tripotassium Citrate are added wherein again, stir 32min, after in 158 DEG C of extruding pelletizations, again through calendering formation, obtain described medical thin-film material.
reference examples 1
Medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 16 parts, polypropylene 11 parts, kymene part, maleic anhydride 2 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2 parts, Zinic stearas 3 parts, Tripotassium Citrate 5 parts, lemon oil 1 part.
The preparation method of described medical thin-film material, comprise the steps: according to weight proportion, polyethylene liquid, polypropylene, polymeric amide and lemon oil are mixed, be warming up to 110 DEG C, successively maleic anhydride, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, Zinic stearas and Tripotassium Citrate are added wherein again, stir 30min, after in 155 DEG C of extruding pelletizations, again through calendering formation, obtain described medical thin-film material.
reference examples 2
Medical thin-film material, comprises the following component according to weight parts: polyethylene liquid 16 parts, polypropylene 11 parts, kymene part, maleic anhydride 2 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2 parts, Zinic stearas 3 parts, lemon oil 1 part.
The preparation method of described medical thin-film material, comprise the steps: according to weight proportion, polyethylene liquid, polypropylene, polymeric amide and lemon oil are mixed, be warming up to 110 DEG C, successively maleic anhydride, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester and Zinic stearas are added wherein again, stir 30min, after in 155 DEG C of extruding pelletizations, again through calendering formation, obtain described medical thin-film material.
performance Detection:
The embodiment of the present invention 1 to 6 gained finished product, reference examples 1 to 2 gained finished product are carried out performance test, and wherein, solvent resistance adopts yellowness index to represent, index is larger, and solvent resistance is poorer, has result as follows:
Table 1 performance test data
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Reference examples 1 | Reference examples 2 | |
| Heat resisting temperature, DEG C | 148 | 150 | 150 | 149 | 148 | 149 | 79 | 88 |
| Yellowness index | 1 | 1.2 | 0.9 | 1.3 | 1.6 | 1.5 | 94 | 91 |
| Ageing resistance, xenon lamp aging, 4000h | Unchanged | Unchanged | Unchanged | Unchanged | Unchanged | Unchanged | Turn yellow | Turn yellow |
As can be seen from the table, the present invention has excellent performance, and wherein the performance of embodiment 3 is best.
Claims (8)
1. medical thin-film material, it is characterized in that, comprise the following component according to weight parts: polyethylene liquid 15-20 part, polypropylene 10-18 part, polymeric amide 2-6 part, pimaric acid 1-3 part, maleic anhydride 2-6 part, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 1-4 part, Zinic stearas 2-5 part, Tripotassium Citrate 4-8 part, lemon oil 1-2 part.
2. medical thin-film material according to claim 1, it is characterized in that, comprise the following component according to weight parts: polyethylene liquid 16-19 part, polypropylene 11-17 part, kymene-5 parts, pimaric acid 2-3 part, maleic anhydride 2-5 part, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2-4 part, Zinic stearas 3-5 part, Tripotassium Citrate 5-7 part, lemon oil 1-2 part.
3. medical thin-film material according to claim 1, it is characterized in that, comprise the following component according to weight parts: polyethylene liquid 17-18 part, polypropylene 12-16 part, kymene-4 parts, pimaric acid 2-3 part, maleic anhydride 3-4 part, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2-3 part, Zinic stearas 3-4 part, Tripotassium Citrate 5-6 part, lemon oil 1-2 part.
4. medical thin-film material according to claim 1, it is characterized in that, comprise the following component according to weight parts: polyethylene liquid 16 parts, polypropylene 11 parts, kymene part, pimaric acid 2 parts, maleic anhydride 2 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2 parts, Zinic stearas 3 parts, Tripotassium Citrate 5 parts, lemon oil 1 part.
5. medical thin-film material according to claim 1, it is characterized in that, comprise the following component according to weight parts: polyethylene liquid 19 parts, polypropylene 17 parts, polymeric amide 5 parts, pimaric acid 3 parts, maleic anhydride 5 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 4 parts, Zinic stearas 5 parts, Tripotassium Citrate 7 parts, lemon oil 2 parts.
6. medical thin-film material according to claim 1, it is characterized in that, comprise the following component according to weight parts: polyethylene liquid 17 parts, polypropylene 12 parts, kymene part, pimaric acid 2 parts, maleic anhydride 3 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2 parts, Zinic stearas 3 parts, Tripotassium Citrate 5 parts, lemon oil 1 part.
7. medical thin-film material according to claim 1, it is characterized in that, comprise the following component according to weight parts: polyethylene liquid 18 parts, polypropylene 16 parts, polymeric amide 4 parts, pimaric acid 3 parts, maleic anhydride 4 parts, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 3 parts, Zinic stearas 4 parts, Tripotassium Citrate 6 parts, lemon oil 2 parts.
8. the preparation method of medical thin-film material according to claim 1, it is characterized in that, comprise the steps: according to weight proportion, polyethylene liquid, polypropylene, polymeric amide and lemon oil are mixed, be warming up to 105-118 DEG C, successively pimaric acid, maleic anhydride, propyl group three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, Zinic stearas and Tripotassium Citrate are added wherein again, stir 20-40min, after in 150-160 DEG C of extruding pelletization, again through calendering formation, obtain described medical thin-film material.
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| CN201410696225.5A CN104479199A (en) | 2014-11-27 | 2014-11-27 | Medical film material and preparation method thereof |
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| CN201410696225.5A CN104479199A (en) | 2014-11-27 | 2014-11-27 | Medical film material and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104844897A (en) * | 2015-04-25 | 2015-08-19 | 安徽松泰包装材料有限公司 | Heat resistant packaging cooking film |
| CN105153543A (en) * | 2015-09-23 | 2015-12-16 | 江苏蓝湾生物科技有限公司 | Preparation method of degradable medical packaging material |
| CN105963753A (en) * | 2016-06-16 | 2016-09-28 | 湖州科达化工燃料有限公司 | Anti-infection medical film |
| CN106243697A (en) * | 2016-08-18 | 2016-12-21 | 桐城市弘业塑胶有限公司 | A kind of high-transparency nylon composite film |
| WO2020249868A1 (en) * | 2019-06-13 | 2020-12-17 | Premix Oy | Agricultural film and use |
| US11771094B2 (en) | 2017-06-14 | 2023-10-03 | Premix Oy | Antimicrobial polymer composition |
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| CN101659769A (en) * | 2009-09-17 | 2010-03-03 | 宁波山泉建材有限公司 | Waterproof air and moisture permeable microporous film, three-layer composite material and preparation method and application thereof |
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2014
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| CN101659769A (en) * | 2009-09-17 | 2010-03-03 | 宁波山泉建材有限公司 | Waterproof air and moisture permeable microporous film, three-layer composite material and preparation method and application thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104844897A (en) * | 2015-04-25 | 2015-08-19 | 安徽松泰包装材料有限公司 | Heat resistant packaging cooking film |
| CN105153543A (en) * | 2015-09-23 | 2015-12-16 | 江苏蓝湾生物科技有限公司 | Preparation method of degradable medical packaging material |
| CN105963753A (en) * | 2016-06-16 | 2016-09-28 | 湖州科达化工燃料有限公司 | Anti-infection medical film |
| CN106243697A (en) * | 2016-08-18 | 2016-12-21 | 桐城市弘业塑胶有限公司 | A kind of high-transparency nylon composite film |
| US11771094B2 (en) | 2017-06-14 | 2023-10-03 | Premix Oy | Antimicrobial polymer composition |
| WO2020249868A1 (en) * | 2019-06-13 | 2020-12-17 | Premix Oy | Agricultural film and use |
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Application publication date: 20150401 |