CN113549329A - Production process of color line pipe - Google Patents
Production process of color line pipe Download PDFInfo
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- CN113549329A CN113549329A CN202110737178.4A CN202110737178A CN113549329A CN 113549329 A CN113549329 A CN 113549329A CN 202110737178 A CN202110737178 A CN 202110737178A CN 113549329 A CN113549329 A CN 113549329A
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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
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/287—Raw material pre-treatment while feeding
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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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
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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
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
- C08J2383/07—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
-
- 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
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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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- 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
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a production process of a color line tube, which comprises a color line tube body and a color line tube nano antibacterial material coating, wherein the color line tube nano antibacterial material coating comprises viscous nano particles and antibacterial substances, the color line tube body is prepared by blending and extruding mixed raw materials, and has the effects of antibiosis, bacteriostasis and the like, meanwhile, the tube body is provided with color lines on the tube wall along the axial direction, the color lines are linearly arranged on the surface of the tube body or dissolved in the tube body or can be disassembled and assembled, 2 or more than 2 extruders are combined into a right-angle machine head structure, and the like, and 2 or more than 2 different color materials are co-produced into a silicone tube by a co-extrusion technology. The outer wall of the tube body can be provided with the optimal arc-shaped clamping groove, and the color lines with different colors can be clamped and fixed on the tube body according to different requirements, so that the color lines and the tube body can be conveniently combined and disassembled.
Description
Technical Field
The invention belongs to the technical field of spool production, particularly relates to a production process of a color spool, and belongs to the technical field of production mainly of medical instruments.
Background
The main representative products in the color tube are: the outer surfaces of the products can have 2 or more than 2 colors, possibly opalescence, transparent color, natural color, blue color and the like, the colors are used for shading and diffusing, the aesthetic effect is also provided, and the colors can be customized according to different purposes. The look line that has the colour in the present colour spool generally is the straight line and locates the surface of pipe fitting main part, is difficult to like this let the staff who looks over can all observe the look line on the pipe fitting from each angle, direction, causes certain inconvenience, and the look line on the present colour spool generally and pipe fitting main part integrated into one piece moreover, the unable colour that changes the look line in later stage.
In addition, the color application of the conduit is also to be researched and developed in the medical field, and in the medical conduit application field, the important matters are aseptic and antibacterial treatment, the aseptic effect cannot be completely achieved even through the medical environment and rigorous medical operation, and infusion tubes, catheters and the like are key problems in advanced clinical medical research, and we need to provide stable continuous antibacterial effect from the fundamental point of the problem.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a production process of a color line tube, which is mainly used for producing a silicone tube by co-extruding 2 or more materials with different colors through a co-extruding technology; aiming at tracking and identifying different silicone tubes, because the conducting wires in the catheter or gastric tube can be tracked by X-rays; or the product is used for a plurality of silicone tubes to identify different purposes, such as identifying the medicine in the silicone tubes through the color of the color tube. The invention also provides a production and manufacturing process of the color line tube with good antibacterial function by coating a layer of color line tube nanometer antibacterial material coating on the surface of the color line tube, the invention comprises a transparent tube body, the tube body is provided with color lines on the tube wall along the axial direction, the color lines are linearly arranged on the surface or inside the tube body, 2 or more than 2 extruders are combined to form a right-angle machine head structure, and the like, and the silicone tube is produced by co-extrusion technology with 2 or more than 2 different color materials. The outer wall of the tube body can be provided with the major arc type clamping groove, color lines with different colors can be clamped and fixed on the tube body according to different requirements, combination and disassembly of the color lines and the tube body are facilitated, and the production process has the advantages of being simple in structure, convenient to operate, small in occupied area, low in production cost, low in equipment cost, high in safety and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the production process of the color line tube comprises a color line tube body and a color line tube nano antibacterial material coating, wherein the color line tube body is prepared by blending and extruding mixed raw materials, and the mixed raw materials comprise the following raw materials:
100 parts of crude rubber, 3-6 parts of silicone oil, 30-45 parts of fumed silica, 0.01-1 part of a release agent, 0.01-1 part of a catalyst, 0.05-1.5 parts of a cross-linking agent and 0.01-1 part of an inhibitor;
based on the scheme, the invention can further provide one or more of the following preferable modes. And the technical characteristics of all the preferred modes can be correspondingly combined on the premise of no mutual conflict.
Preferably, the mixed raw materials comprise:
100 parts of crude rubber, 3-6 parts of silicone oil, 30-45 parts of fumed silica, 0.01-1 part of a release agent, 0.01-1 part of a catalyst, 0.05-1.5 parts of a cross-linking agent and 0.01-1 part of an inhibitor;
preferably, the raw rubber is methyl vinyl silicone rubber.
Preferably, the silicone oil is a hydroxyl silicone oil or a methoxy silicone oil.
Preferably, the silica isHas a specific surface area of more than 150m2(ii) more than g of hydrophilic or hydrophobic fumed silica.
Preferably, the release agent is zinc stearate.
The specific production process comprises the following steps:
a) starting the kneader, putting the raw materials into the kneader, and carrying out continuous hot mixing treatment;
b) stirring the raw materials subjected to the hot mixing treatment, and standing the raw materials in a vacuum environment after fully stirring;
c) adding a catalyst, a cross-linking agent and an inhibitor into the mixed and cooled raw materials on an open mill, and extruding and molding the transparent part of the body color tube body by a screw extruder 1;
d) adding color master, barium sulfate or other ray tracing materials, a catalyst, a cross-linking agent and an inhibitor into the mixed and cooled raw materials on an open mill, and extruding color line materials for a color line pipe through a screw rod extruder 2;
e) the color line pipe body sequentially passes through the high-temperature furnace, the first tunnel furnace, the second tunnel furnace, the third tunnel furnace, the fourth tunnel furnace and the receiving barrel;
f) spraying a nano antibacterial material on the outer wall of the color line pipe to form a surface coating;
preferably, the color line tube nano antibacterial material coating comprises adhesive bearing nano particles and an antibacterial substance.
Preferably, the adhesive carrying nanoparticles and the antimicrobial substance are mixed in a silicone resin and a solvent and then sprayed on the color tube;
preferably, the antibacterial substance is any one or more of benzimidazole, methylsulfonyl, a compound containing triazolyl and the like or silver ion zeolite.
Preferably, the catalyst is a platinum complex, the crosslinking agent is hydrogen-containing silicone oil or 2, 4-dichloro benzoyl peroxide (used alone), and the inhibitor is ethynyl cyclohexanol.
Preferably, the hot mixing treatment time in the step b) is 30min, and the hot mixing temperature is 150-170 ℃. Preferably, the temperature conditions of the high temperature furnace in the step e) are 500-.
Preferably, the screw extruder is combined by 2 or more extruders in a right-angle head structure, and 2 or more materials with different colors are co-extruded to produce the color line pipe.
Preferably, the screw extruder is a vacuum screw extruder.
Preferably, the outer wall of the color tube body can be provided with a U-arc-shaped clamping groove, so that color wires with different colors can be clamped and fixed on the tube body.
The production and manufacturing process of the color line tube with good antibacterial function comprises the steps of producing the silicone tube by 2 or more than 2 materials with different colors; aiming at tracking and identifying different silicone tubes, because the conducting wires in the catheter or gastric tube can be tracked by X-rays; or the product is used for occasions with a plurality of silicone tubes to identify different purposes, such as identifying the medicine in the silicone tubes through the color of the color tube, the invention has the advantages that:
1. the silicon rubber is selected as a base material, and has wider weather resistance and better mechanical property, thereby effectively improving the stability of the color tube under various application conditions.
2. According to the production process of the color line tube, the structure of the color line tube can be improved by adding the silane coupling agent, the special silicone oil and the like into the raw materials, the service performance of the color line tube is improved, and the production process effect is improved.
3. The silicone tube is produced by combining 2 or more than 2 extruders in a right-angle head structure and the like and co-extruding 2 or more than 2 materials with different colors by a co-extrusion technology. The outer wall of the tube body can be provided with the major arc type clamping groove, color lines with different colors can be clamped and fixed on the tube body according to different requirements, combination and disassembly of the color lines and the tube body are facilitated, and the production process has the advantages of being simple in structure, convenient to operate, small in occupied area, low in production cost, low in equipment cost, high in safety and the like.
4. The antibacterial substance exerts a synergistic antibacterial effect, and on the other hand, the loaded antibacterial component is slowly released, and finally a lasting and stable antibacterial effect is achieved.
5. The color line tube has simple production process and can be produced industrially in large scale.
Drawings
FIG. 1 is a front view of a co-extrusion process of the present invention;
FIG. 2 is a top view of the co-extrusion process of the present invention;
FIG. 3 is a partial view of FIG. 1;
FIG. 4 is a schematic view of the structure of the color line of the present invention.
Wherein: 1. 4-a screw rod extruder, 2-a steel pipe for connecting a co-extruder head, 3-materials such as ray tracing materials, color materials and the like, and 5-a color line pipe.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
The invention provides a production process of a color line pipe, which comprises a color line pipe body and a color line pipe nano antibacterial material coating, wherein the color line pipe body is prepared by mixing and extruding mixed raw materials:
the mixed raw materials comprise:
100 parts of crude rubber, 4 parts of silicone oil, 40 parts of fumed silica, 0.05 part of release agent, 0.01-1 part of catalyst, 0.05-1.5 parts of cross-linking agent and 0.01-1 part of inhibitor;
respectively putting the mixture into a kneader to carry out continuous hot mixing treatment; stirring the raw materials subjected to the hot mixing treatment, and standing the raw materials in a vacuum environment after fully stirring; adding a catalyst, a cross-linking agent and an inhibitor into a part of the mixed and cooled raw materials on an open mill, and extruding and molding the transparent part of the body color tube body by a screw extruder 1; adding ray tracing materials such as color master batch, barium sulfate and the like, a catalyst, a cross-linking agent and an inhibitor into the other part of the mixture on an open mill, and extruding the color line materials for the color line pipe through a screw rod extruder 2; the color line pipe body sequentially passes through the high-temperature furnace, the first tunnel furnace, the second tunnel furnace, the third tunnel furnace, the fourth tunnel furnace and the material receiving barrel through the co-extrusion machine head.
The hot mixing treatment time in the step b) is 30min, the hot mixing temperature is 150 ℃, the temperature condition of the high-temperature furnace in the step e) is 550 ℃, the temperature condition of the first tunnel furnace is 230 ℃, the temperature condition of the second tunnel furnace is 260 ℃, the temperature condition of the third tunnel furnace is 290 ℃, the temperature condition of the fourth tunnel furnace is 310 ℃, the screw extruder is used for co-extruding 2 or more than 2 materials with different colors through a combined co-extrusion technology that 2 extruders are in a right-angle machine head structure and the like.
The screw extruder is a vacuum screw extruder.
Example 2
100 parts of crude rubber, 4 parts of silicone oil, 40 parts of fumed silica, 0.05 part of release agent, 0.01-1 part of catalyst, 0.05-1.5 parts of cross-linking agent and 0.01-1 part of inhibitor.
Respectively putting the mixture into a kneader to carry out continuous hot mixing treatment; stirring the raw materials subjected to the hot mixing treatment, and standing the raw materials in a vacuum environment after fully stirring; adding a catalyst, a cross-linking agent and an inhibitor into a part of the mixed and cooled raw materials on an open mill, and extruding and molding the transparent part of the body color tube body by a screw extruder 1; adding ray tracing materials such as color master batch, barium sulfate and the like, a catalyst, a cross-linking agent and an inhibitor into the other part of the mixture on an open mill, and extruding the color line materials for the color line pipe through a screw rod extruder 2; the color line pipes are extruded by the co-extrusion machine head to sequentially pass through the high-temperature furnace, the first tunnel furnace, the second tunnel furnace, the third tunnel furnace and the fourth tunnel furnace.
And (3) setting a spraying process behind the four drying tunnels, spraying the color line tubes, then further feeding the color line tubes into a fifth tunnel furnace and a sixth tunnel furnace, setting the temperature conditions to be 230 ℃ and 260 ℃, and collecting the color line tubes by using a crawler-type material collecting machine behind the sixth tunnel furnace.
The screw extruder is a vacuum screw extruder.
The outer wall of the color tube body is provided with a U-arc-shaped clamping groove, so that color wires with different colors can be clamped and fixed on the tube body.
The color tube nano antibacterial material coating comprises adhesive nano particles and an antibacterial substance, wherein the antibacterial substance is any one or more of benzimidazole, methylsulfonyl, a compound containing triazolyl and the like or silver ion zeolite.
The adhesive bearing nano particles and the antibacterial substance are mixed in the silicone resin and the solvent and then sprayed on the color line tube; the coating sprayed on the color line pipe is solidified and attached to the surface of the color line pipe at high temperature through a tunnel furnace, so that the antibacterial effect is achieved.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The production process of the color line tube is characterized in that the color line tube comprises a color line tube body and a color line tube nano antibacterial material coating, wherein the color line tube body is prepared by mixing and extruding mixed raw materials: the mixed raw materials consist of the following raw materials:
2. 100 parts of crude rubber, 3-6 parts of silicone oil, 30-45 parts of fumed silica, 0.01-1 part of a release agent, 0.01-1 part of a catalyst, 0.05-1.5 parts of a cross-linking agent and 0.01-1 part of an inhibitor;
the raw rubber is methyl vinyl silicone rubber; the silicone oil is hydroxyl silicone oil or methoxy silicone oil; the specific surface area of the silicon dioxide is more than 150m2(ii) hydrophilic or hydrophobic fumed silica of a type of,/g or more; the release agent is zinc stearate;
the specific production process comprises the following steps:
a) starting the kneader, putting the raw materials into the kneader, and carrying out continuous hot mixing treatment;
b) stirring the raw materials subjected to the hot mixing treatment, and standing the raw materials in a vacuum environment after fully stirring;
c) adding a catalyst, a cross-linking agent and an inhibitor into the mixed and cooled raw materials on an open mill, and extruding and molding the transparent part of the body color tube body by a screw extruder 1;
d) adding color master, barium sulfate or other ray tracing materials, a catalyst, a cross-linking agent and an inhibitor into the mixed and cooled raw materials on an open mill, and extruding color line materials for a color line pipe through a screw rod extruder 2;
e) the color line pipe body sequentially passes through the high-temperature furnace, the first tunnel furnace, the second tunnel furnace, the third tunnel furnace, the fourth tunnel furnace and the receiving barrel;
f) spraying a nano antibacterial material on the outer wall of the color line pipe to form a surface coating;
the color line tube nano antibacterial material coating comprises viscous bearing nano particles and an antibacterial substance, and the viscous bearing nano particles and the antibacterial substance are mixed in silicone resin and a solvent and then sprayed on the color line tube;
the antibacterial substance is any one or more of benzimidazole, methylsulfonyl, a compound containing triazolyl or inorganic silver ion zeolite.
2. The process for producing color line tubes according to claim 1, wherein: the catalyst is a platinum complex, the cross-linking agent is hydrogen-containing silicone oil or 2, 4-dichloro benzoyl peroxide (only used singly), and the inhibitor is ethynyl cyclohexanol.
3. The process for producing color line tubes according to claim 1, wherein: the time of the hot mixing treatment in the step b) is 30min, and the hot mixing temperature is 150-160 ℃.
4. The process for producing color line tubes according to claim 1, wherein: in the step e), the temperature condition of the high temperature furnace is 500-.
5. The process for producing color line tubes according to claim 1, wherein: the screw extruder is a right-angle head structure combination through 2 or more than 2 extruders, and 2 or more than 2 different materials are co-extruded to produce the color line pipe.
6. A process according to any one of claims 1 to 5, wherein: the extruder is a vacuum screw extruder.
7. The process for producing color line tubes according to claim 6, wherein: the outer wall of the color line tube body can also be provided with a U-arc-shaped clamping groove, so that color lines with different colors can be clamped and fixed on the tube body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110737178.4A CN113549329B (en) | 2021-06-30 | 2021-06-30 | Production process of color line pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110737178.4A CN113549329B (en) | 2021-06-30 | 2021-06-30 | Production process of color line pipe |
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| CN113549329B CN113549329B (en) | 2022-09-02 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001029451A (en) * | 1999-07-16 | 2001-02-06 | Toyobo Co Ltd | Antibacterial urethral catheter and manufacture of the same |
| JP2002038011A (en) * | 2000-07-24 | 2002-02-06 | Shin Etsu Chem Co Ltd | Antifungal silicone rubber composition |
| CN104826175A (en) * | 2015-05-21 | 2015-08-12 | 天津市医好用精密塑胶科技有限公司 | Medicinal silica gel developing tube and preparation method thereof |
| CN107485732A (en) * | 2016-06-11 | 2017-12-19 | 桂林紫竹乳胶制品有限公司 | The preparation method of antimicrobial silicon sebific duct, composite antibacterial material and the material in silicone tube surface coating |
| CN108727831A (en) * | 2018-05-23 | 2018-11-02 | 湖南博隽生物医药有限公司 | A kind of medical antibacterial silica gel material and preparation method thereof |
| CN111249537A (en) * | 2020-01-16 | 2020-06-09 | 兰州大学 | Antibacterial catheter and preparation method thereof |
-
2021
- 2021-06-30 CN CN202110737178.4A patent/CN113549329B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001029451A (en) * | 1999-07-16 | 2001-02-06 | Toyobo Co Ltd | Antibacterial urethral catheter and manufacture of the same |
| JP2002038011A (en) * | 2000-07-24 | 2002-02-06 | Shin Etsu Chem Co Ltd | Antifungal silicone rubber composition |
| CN104826175A (en) * | 2015-05-21 | 2015-08-12 | 天津市医好用精密塑胶科技有限公司 | Medicinal silica gel developing tube and preparation method thereof |
| CN107485732A (en) * | 2016-06-11 | 2017-12-19 | 桂林紫竹乳胶制品有限公司 | The preparation method of antimicrobial silicon sebific duct, composite antibacterial material and the material in silicone tube surface coating |
| CN108727831A (en) * | 2018-05-23 | 2018-11-02 | 湖南博隽生物医药有限公司 | A kind of medical antibacterial silica gel material and preparation method thereof |
| CN111249537A (en) * | 2020-01-16 | 2020-06-09 | 兰州大学 | Antibacterial catheter and preparation method thereof |
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