CN107997865A - A kind of silica gel nasal septum stent - Google Patents
A kind of silica gel nasal septum stent Download PDFInfo
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- CN107997865A CN107997865A CN201711222532.XA CN201711222532A CN107997865A CN 107997865 A CN107997865 A CN 107997865A CN 201711222532 A CN201711222532 A CN 201711222532A CN 107997865 A CN107997865 A CN 107997865A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/08—Devices for correcting deformities of the nose ; Devices for enlarging the nostril, e.g. for breathing improvement
-
- 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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/04—Macromolecular materials
- A61L31/06—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/10—Macromolecular materials
-
- 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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/16—Biologically active materials, e.g. therapeutic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/02—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polycarbonates or saturated polyesters
-
- 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
- C08L83/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
-
- 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
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0843—Cobalt
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08K2201/011—Nanostructured additives
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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
- 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)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Epidemiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Surgery (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
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- Otolaryngology (AREA)
- Pulmonology (AREA)
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- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention discloses a kind of silica gel nasal septum stent, belong to medical field, the silica gel nasal septum stent includes silica gel nasal septum rack body and antimicrobial coating, the antimicrobial coating is located at the surface of silica gel nasal septum rack body, the thickness of the antimicrobial coating is 0.01mm 1mm, the antimicrobial coating is a kind of polymer coating, the polymer coating is a kind of makrolon multi-monomer grafting polymer, and the grafted monomers include containing phenyl ring or pyridine ring unsaturated silane and acrylonitrile monemer.
Description
Technical field
The present invention relates to area of medical devices, a kind of specifically silica gel nasal septum stent.
Background technology
Silica gel deviation of nasal septum, is also silica gel deviation of nasal septum, refers to silica gel deviated nasal septum from center line to side or two
Projection is bent or be partially formed, causes nose dysfunction or produces symptom, but the honest person of silica gel nasal septum is very few, such as nonfunctional
Obstacle, shouldn't be handled.The common cause of disease includes：Wound, dysplasia, the compressing of nose intracavitary neoplasm foreign matter etc..Main disease
Shape is：Alternately or continuation is had a stuffy nose, headache, nosebleed and rhinorrhea etc..In fact the completely honest person of silica gel nasal septum is very few,
Often there is different degrees of deflection, and above-mentioned various forms can exist at the same time.Silica gel deviation of nasal septum such as nonfunctional obstacle is known as
" physiological silica gel deviation of nasal septum "；Such as generating function obstacle, silica gel deviation of nasal septum can be rectified using silica gel deviation of nasal septum
Positive art.
When silica gel nasal septum is corrected, it is often necessary to use silica gel nasal septum stenter to implant, silica gel nasal septum stent
It is direct contact human body wound, if sterilization is not thorough patient will be caused to infect, seriously can be fatal, the silica gel nasal septum stent
Cleaning be a problem, the silica gel nasal septum rack surface being not easily cleaned once is infected with drug-resistant bacteria, will face patient
The risk of secondary infection.
The content of the invention
It is an object of the invention to solve the above-mentioned problems, disclose a kind of silica gel nasal septum stent, the silica gel
Nasal septum stent includes silica gel nasal septum rack body and antimicrobial coating, and the antimicrobial coating is located at silica gel nasal septum stent sheet
The surface of body；The thickness of the antimicrobial coating is 0.01mm-1mm, and the antimicrobial coating is a kind of polymer coating, described
Polymer coating be a kind of makrolon multi-monomer grafting polymer, the grafted monomers include containing phenyl ring or pyrrole
Pyridine ring unsaturated silane and acrylonitrile monemer；
The silica gel includes the component of following parts by weight：100 parts of fluorine silicon raw rubber, 2-4 parts of fluorosilicon oil, silane coupling agent 0.1-1
Part, 5-10 parts of nanometer silicon carbide, 5-10 parts of chromium nitride, 0.1-0.5 parts of cobalt, titanium dioxide 5-10.
As an improvement, the silane coupling agent is selected from gamma-aminopropyl-triethoxy-silane, γ-glycidyl ether oxygen propyl
Trimethoxy silane.
As an improvement, the nanometer silicon carbide particle diameter is 10nm-50nm.
As an improvement, the preparation method of the fluorubber is as follows：
Step 1：Nanometer silicon carbide, chromium nitride, cobalt are added in coupling reaction tank, open agitating device, stirring makes mixture
Rotation, coupling agent is sprayed directly in mixture, controls the rotary speed of agitating device so that the temperature of mixture reaches
120 degrees Celsius, react 30 minutes, modified mixture is made；
Step 2：Titanium dioxide and fluorine silicon raw rubber are coordinated, use physical method so that titanium dioxide is embedded into middle fluorine silicon raw rubber,
The physical method is rolled selected from mechanical force, screw extrusion, high speed shear, airflow milling clash, ultrasonic blending processing；
Step:3：Mixture after step 1 and the fluorine silicon raw rubber after step 2, fluorosilicon oil are kneaded, obtain uniform sizing material；
Step 4：Slicing treatment is carried out to the sizing material of step 3, secondly in 150-200 DEG C of high-temperature process 130-200 minutes.
As an improvement, the unsaturated silane monomer is selected from：Triple phenoxyl vinyl silanes, 3- chloropropyl dimethyl second
Alkenyl silanes, triphenyl vinyl silane, 3,5-dimethylphenyl vinyl silanes, dimethyl (2- pyridine radicals) vinyl silanes.
As an improvement, the polymer and grafted monomers parts by weight of raw materials is as follows：100 parts of makrolon, unsaturated silicon
5-20 parts of alkane monomer, 5-20 parts of acrylonitrile monemer.
As an improvement, the preparation method of the polymer coating is as follows：
Step A：Unsaturated silane, acrylonitrile are uniformly mixed；
Step B:Makrolon is melted in rheometer；
Step C：Mixture and initiator after step A are added in rheometer, react 5 min -10min..
As an improvement, the initiator is selected from benzoyl peroxide, lauroyl peroxide, isopropyl benzene hydroperoxide, uncle
Butylhydroperoxide, cumyl peroxide.
As an improvement, the initiator is benzoyl peroxide and the mixture of cumyl peroxide, molar ratio is
1:（0.7-1.5）.
As an improvement, the melting time of the step B is 1-5min.
In contrast experiment, inventor can trigger infection and the stronger Pseudomonas aeruginosa of inflammation, drug resistance and golden yellow Portugal
Grape coccus is transplanted to the silica gel nasal septum stent of this polymer coating and common silica gel nasal septal branch frame respectively.During by one section
Between after carry out test show that the pathogen residual quantity of new polymers coating surface just corresponds to common silica gel nasal septal branch frame
Thousands of to hundreds of a ten thousandths of surface bacteria quantity.
Embodiment
The present invention is described in detail below.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Specific embodiment 1：A kind of silica gel nasal septum stent, the silica gel nasal septum stent include silica gel nasal septum stent
Body and antimicrobial coating, the antimicrobial coating are located at the surface of silica gel nasal septum rack body, the thickness of the antimicrobial coating
It is a kind of polymer coating to spend for 0.01mm-1mm, the antimicrobial coating, and the polymer coating is a kind of poly- carbonic acid
Ester multi-monomer grafting polymer, the grafted monomers include dimethyl (2- pyridine radicals) vinyl silanes and acrylonitrile monemer thing
Coating.
The polymer and grafted monomers parts by weight of raw materials is as follows：100 parts of makrolon, dimethyl (2- pyridine radicals) second
5 parts of alkenyl silanes monomer, 20 parts of acrylonitrile monemer.
The preparation method of polymer coating is as follows：
Step A：Unsaturated silane, acrylonitrile are uniformly mixed；
Step B:Makrolon is melted in rheometer, melting time 5min；
Step C：Mixture and initiator after step A are added in rheometer, and initiator is the 0.1% of makrolon weight,
React 5 min；
The initiator is the mixture of benzoyl peroxide and cumyl peroxide, molar ratio 1:0.7.
Embodiment 1 and common silica gel nasal septal branch frame are subjected to contrast discovery, the bacterium of embodiment 1 remains common silica gel nose
Ten a ten thousandths of interval stent are to 3/100000ths.
Specific embodiment 2：Present embodiment discloses a kind of silica gel for preparing nasal septum stent, the silica gel includes following
The component of parts by weight：100 parts of fluorine silicon raw rubber, 2 parts of fluorosilicon oil, 0.1 part of silane coupling agent, 5 parts of nanometer silicon carbide, 5 parts of chromium nitride,
0.1 part of cobalt, titanium dioxide 5.
The silane coupling agent is selected from gamma-aminopropyl-triethoxy-silane according to the nanometer silicon carbide particle diameter is
10nm-50nm。
The preparation method of the fluorubber is as follows：
Step 1：Nanometer silicon carbide, chromium nitride, cobalt are added in coupling reaction tank, open agitating device, stirring makes mixture
Rotation, coupling agent is sprayed directly in mixture, controls the rotary speed of agitating device so that the temperature of mixture reaches
120 degrees Celsius, react 30 minutes, modified mixture is made；
Step 2：Titanium dioxide and fluorine silicon raw rubber are coordinated, use physical method so that titanium dioxide is embedded into middle fluorine silicon raw rubber,
The physical method is high speed shear processing；
Step:3：Mixture after step 1 and the fluorine silicon raw rubber after step 2, fluorosilicon oil are kneaded, obtain uniform sizing material；
Step 4：Slicing treatment is carried out to the sizing material of step 3, secondly in 200 DEG C of high-temperature process 130 minutes.
Claims (10)
1. a kind of silica gel nasal septum stent, the silica gel nasal septum stent includes silica gel nasal septum rack body and antibacterial applies
Layer, the antimicrobial coating are located at the surface of silica gel nasal septum rack body；The thickness of the antimicrobial coating is 0.01mm-
1mm, the antimicrobial coating are a kind of polymer coatings, and the polymer coating is a kind of makrolon multi-monomer grafting
Polymer, the grafted monomers include containing phenyl ring or pyridine ring unsaturated silane and acrylonitrile monemer；
The silica gel includes the component of following parts by weight：100 parts of fluorine silicon raw rubber, 2-4 parts of fluorosilicon oil, silane coupling agent 0.1-1
Part, 5-10 parts of nanometer silicon carbide, 5-10 parts of chromium nitride, 0.1-0.5 parts of cobalt, titanium dioxide 5-10.
2. silica gel nasal septum stent according to claim 1, it is characterised in that the silane coupling agent is selected from γ-ammonia third
Ethyl triethoxy silicane alkane, γ-glycidyl ether oxygen propyl trimethoxy silicane.
3. silica gel nasal septum stent according to claim 1, it is characterised in that the nanometer silicon carbide particle diameter is
10nm-50nm。
4. silica gel nasal septum stent according to claim 3, it is characterised in that the preparation method of the fluorubber is such as
Under：
Step 1：Nanometer silicon carbide, chromium nitride, cobalt are added in coupling reaction tank, open agitating device, stirring makes mixture
Rotation, coupling agent is sprayed directly in mixture, controls the rotary speed of agitating device so that the temperature of mixture reaches
120 degrees Celsius, react 30 minutes, modified mixture is made；
Step 2：Titanium dioxide and fluorine silicon raw rubber are coordinated, use physical method so that titanium dioxide is embedded into middle fluorine silicon raw rubber,
The physical method is rolled selected from mechanical force, screw extrusion, high speed shear, airflow milling clash, ultrasonic blending processing；
Step:3：Mixture after step 1 and the fluorine silicon raw rubber after step 2, fluorosilicon oil are kneaded, obtain uniform sizing material；
Step 4：Slicing treatment is carried out to the sizing material of step 3, secondly in 150-200 DEG C of high-temperature process 130-200 minutes.
5. silica gel nasal septum stent according to claim 4, it is characterised in that the unsaturated silane monomer is selected from：
Triple phenoxyl vinyl silanes, 3- chloropropyl dimethylvinylsiloxies base silane, triphenyl vinyl silane, 3,5-dimethylphenyl vinyl
Silane, dimethyl (2- pyridine radicals) vinyl silanes.
6. silica gel nasal septum stent according to claim 5, it is characterised in that the polymer and grafted monomers raw material
Parts by weight are as follows：100 parts of makrolon, 5-20 parts of unsaturated silane monomer, 5-20 parts of acrylonitrile monemer.
7. silica gel nasal septum stent according to claim 6, it is characterised in that the preparation method of the polymer coating
It is as follows：
Step A：Unsaturated silane, acrylonitrile are uniformly mixed；
Step B:Makrolon is melted in rheometer；
Step C：Mixture and initiator after step A are added in rheometer, react 5 min -10min.
8. silica gel nasal septum stent according to claim 7, it is characterised in that the initiator is selected from benzoyl peroxide first
Acyl, lauroyl peroxide, isopropyl benzene hydroperoxide, tert-butyl hydroperoxide, cumyl peroxide.
9. silica gel nasal septum stent according to claim 8, it is characterised in that the initiator is benzoyl peroxide
With the mixture of cumyl peroxide, molar ratio 1:（0.7-1.5）.
10. silica gel nasal septum stent according to claim 9, it is characterised in that the melting time of the step B is 1-
5min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222532.XA CN107997865A (en) | 2017-11-29 | 2017-11-29 | A kind of silica gel nasal septum stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222532.XA CN107997865A (en) | 2017-11-29 | 2017-11-29 | A kind of silica gel nasal septum stent |
Publications (1)
| Publication Number | Publication Date |
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| CN107997865A true CN107997865A (en) | 2018-05-08 |
Family
ID=62054745
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711222532.XA Withdrawn CN107997865A (en) | 2017-11-29 | 2017-11-29 | A kind of silica gel nasal septum stent |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1596844A (en) * | 2004-09-11 | 2005-03-23 | 陈立财 | Artificial nose body for nose raising operation nose artificial body moulding material and moulding knife |
| CN102585515A (en) * | 2012-02-28 | 2012-07-18 | 上海旭创高分子材料有限公司 | Refractory silicon rubber |
| CN103108895A (en) * | 2010-09-17 | 2013-05-15 | 沙伯基础创新塑料知识产权有限公司 | Polycarbonate graft copolymers |
| CN103551055A (en) * | 2013-11-01 | 2014-02-05 | 中国海诚工程科技股份有限公司 | Modifying method of cellulose acetate filtration membrane |
| CN104356422A (en) * | 2014-10-29 | 2015-02-18 | 深圳市冠恒新材料科技有限公司 | Maleopimaric acid modified white carbon black, fluorinated silicone rubber mixing rubber and preparation method thereof |
| CN106261458A (en) * | 2016-09-24 | 2017-01-04 | 成都测迪森生物科技有限公司 | A kind of moistureproof anti-metamorphic food storage device |
| CN106632864A (en) * | 2016-12-05 | 2017-05-10 | 彭州市运达知识产权服务有限公司 | HDPE multi-monomer graft polymer and preparation method thereof |
| CN107714136A (en) * | 2017-10-14 | 2018-02-23 | 师新虎 | A kind of medical bone drill |
-
2017
- 2017-11-29 CN CN201711222532.XA patent/CN107997865A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1596844A (en) * | 2004-09-11 | 2005-03-23 | 陈立财 | Artificial nose body for nose raising operation nose artificial body moulding material and moulding knife |
| CN103108895A (en) * | 2010-09-17 | 2013-05-15 | 沙伯基础创新塑料知识产权有限公司 | Polycarbonate graft copolymers |
| CN102585515A (en) * | 2012-02-28 | 2012-07-18 | 上海旭创高分子材料有限公司 | Refractory silicon rubber |
| CN103551055A (en) * | 2013-11-01 | 2014-02-05 | 中国海诚工程科技股份有限公司 | Modifying method of cellulose acetate filtration membrane |
| CN104356422A (en) * | 2014-10-29 | 2015-02-18 | 深圳市冠恒新材料科技有限公司 | Maleopimaric acid modified white carbon black, fluorinated silicone rubber mixing rubber and preparation method thereof |
| CN106261458A (en) * | 2016-09-24 | 2017-01-04 | 成都测迪森生物科技有限公司 | A kind of moistureproof anti-metamorphic food storage device |
| CN106632864A (en) * | 2016-12-05 | 2017-05-10 | 彭州市运达知识产权服务有限公司 | HDPE multi-monomer graft polymer and preparation method thereof |
| CN107714136A (en) * | 2017-10-14 | 2018-02-23 | 师新虎 | A kind of medical bone drill |
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