CN109401323A - A kind of Rubber seal material of heat-resistant fireproof - Google Patents
A kind of Rubber seal material of heat-resistant fireproof Download PDFInfo
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- CN109401323A CN109401323A CN201811273179.2A CN201811273179A CN109401323A CN 109401323 A CN109401323 A CN 109401323A CN 201811273179 A CN201811273179 A CN 201811273179A CN 109401323 A CN109401323 A CN 109401323A
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- rubber seal
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- resistant fireproof
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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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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
-
- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2003/1034—Materials or components characterised by specific properties
- C09K2003/1078—Fire-resistant, heat-resistant materials
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of Rubber seal materials of heat-resistant fireproof, component including following weight parts by weight: silicon rubber 105-115 parts by weight, fluorubber 25-35 parts by weight, urethane-modified vinyl ester resin 15-25 parts by weight, -3 parts by weight of silica 1, aluminium oxide 0.5-1.5 parts by weight, lithia 1.8-2.2 parts by weight, Nano titanium nitride 0.8-1.6 parts by weight, triallylcyanurate 9-13 parts by weight, zinc borate 3-5 parts by weight, barium sulfate 1-3 parts by weight, calcium hydroxide 1-5 parts by weight, promotor 0.7-1.1 parts by weight, dispersing agent 0.5-0.7 parts by weight, anti-aging agent 0.9-1.1 parts by weight, colorant 0.4-0.6 parts by weight.A kind of Rubber seal material of heat-resistant fireproof is provided the present invention be directed to existing rubber seal heat-resistant fireproof etc. performance deficiency, the requirement of existing rubber seal can not only be met, and rubber seal high temperature resistant, fire-retardant performance are substantially increased, there is very big practicability and promotional value etc..
Description
Technical field
The present invention relates to sealing ring technical field, in particular to a kind of Rubber seal material of heat-resistant fireproof.
Background technique
The circular cowling that rubber seal is made of one or several parts is fixed on the lasso or washer of bearing
And with another lasso or washer contacts or form narrow labyrinth clearance, prevent lubricating oil from leaking out and foreign object intrusion.
Rubber seal is gentle in defined temperature, pressure and different liquid for being mounted on various mechanical equipments
In body, seal under static or motion state.
The material analysis of rubber seal
(1) fluorubber: there is heat-resisting quantity, can be used in -30 DEG C -+250 DEG C environment, powerful oxidation corrosion resistance agent, oil resistant, acid and alkali-resistance.
Commonly used in high temperature, in high vacuum and hyperbaric environment, it is suitable for oils environment.Due to various excellent performances, fluorubber
It is widely used in the departments such as petroleum, chemical industry, Aeronautics and Astronautics.
(2) silicon rubber: there is high and low temperature resistance outstanding, keep good within the temperature range of -70 DEG C -+260 DEG C
Using elasticity, and there are resistance to ozone, Weather-resistant, preferably makees the sealing gasket in thermomechanical.Because that can be made without any toxicity
It is insulated, insulated product and druggist rubber sundrier.
3, nitrile rubber: having a performances such as excellent oil resistant and aromatic solvent, but intolerant to ketone, ester and chlorination through etc. media,
Therefore oil resistant sealing article is based on use nitrile rubber.
4, neoprene: there are the performances such as good oil resistant, solvent resistant, chemical mediator, but intolerant to aromatic oil, feature
It is the Hou Laohua of resistance to day and ozone aging function admirable.Neoprene production door and window sealing strip and diaphragm and one are generallyd use in production
As vacuum sealing article;
5, EPDM: there is good heatproof, the Hou Laohua of resistance to day and ozone aging performance, usual door and window sealing strip, auto industry
Middle use is most extensive.
6, polytetrafluoroethylene (PTFE) Composition spacer is using polytetrafluoroethylene (PTFE) and high-quality entirely at rubber as material, using special producing work
The sealing material that skill is combined, it combines polytetrafluoroethylene (PTFE) and the respective good characteristic of rubber, had product both
Excellent is corrosion-resistant, and high temperature resistant, nontoxic, resistance to bond, and has good elasticity and leakproofness.
But existing rubber seal is limited to the requirement of the characteristic and use environment of composition material, Wang Wang cannot reach
To high temperature resistant, fire-retardant requirement.
In view of above, the present invention provides a kind of Rubber seal materials of heat-resistant fireproof, can not only meet existing
The requirement of rubber seal, and substantially increase rubber seal high temperature resistant, fire-retardant performance.
Summary of the invention
Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a kind of rubber seals of heat-resistant fireproof
Loop material.
In order to solve the above technical problems, the present invention provides a kind of Rubber seal material of heat-resistant fireproof, including following
The component of weight parts by weight:
Silicon rubber 105-115 parts by weight, fluorubber 25-35 parts by weight, urethane-modified vinyl ester resin 15-25 weight
Part, -3 parts by weight of silica 1, aluminium oxide 0.5-1.5 parts by weight, lithia 1.8-2.2 parts by weight, Nano titanium nitride 0.8-
1.6 parts by weight, triallylcyanurate 9-13 parts by weight, zinc borate 3-5 parts by weight, barium sulfate 1-3 parts by weight, calcium hydroxide
1-5 parts by weight, promotor 0.7-1.1 parts by weight, dispersing agent 0.5-0.7 parts by weight, anti-aging agent 0.9-1.1 parts by weight, colorant
0.4-0.6 parts by weight.
Further, the present invention includes the component of following weight parts by weight:
105 parts by weight of silicon rubber, 35 parts by weight of fluorubber, 15 parts by weight of urethane-modified vinyl ester resin, titanium dioxide
3 parts by weight of silicon, 0.5 parts by weight of aluminium oxide, 2.2 parts by weight of lithia, 0.8 parts by weight of Nano titanium nitride, triallyl cyanurate
13 parts by weight of ester, 3 parts by weight of zinc borate, 3 parts by weight of barium sulfate, 1 parts by weight of calcium hydroxide, 1.1 parts by weight of promotor, dispersing agent
0.5 parts by weight, 1.1 parts by weight of anti-aging agent, 0.4 parts by weight of colorant.
Further, the present invention includes the component of following weight parts by weight:
110 parts by weight of silicon rubber, 30 parts by weight of fluorubber, 20 parts by weight of urethane-modified vinyl ester resin, titanium dioxide
2 parts by weight of silicon, 1 parts by weight of aluminium oxide, 2 parts by weight of lithia, 1.2 parts by weight of Nano titanium nitride, triallylcyanurate 11
Parts by weight, 4 parts by weight of zinc borate, 2 parts by weight of barium sulfate, 3 parts by weight of calcium hydroxide, 0.9 parts by weight of promotor, dispersing agent 0.6
Parts by weight, 1 parts by weight of anti-aging agent, 0.5 parts by weight of colorant.
Further, the present invention includes the component of following weight parts by weight:
115 parts by weight of silicon rubber, 25 parts by weight of fluorubber, 25 parts by weight of urethane-modified vinyl ester resin, titanium dioxide
3 parts by weight of silicon, 1.5 parts by weight of aluminium oxide, 1.8 parts by weight of lithia, 1.6 parts by weight of Nano titanium nitride, triallyl cyanurate
9 parts by weight of ester, 5 parts by weight of zinc borate, 1 parts by weight of barium sulfate, 5 parts by weight of calcium hydroxide, 0.7 parts by weight of promotor, dispersing agent
0.7 parts by weight, 0.9 parts by weight of anti-aging agent, 0.6 parts by weight of colorant.
Further, promotor of the present invention is triethanolamine.
Further, promotor of the present invention is the modified pentaerythrite of polypropylene glycol.
Further, it according to mass ratio is 1 that dispersing agent of the present invention, which is N- phenyl-α-aniline and N- phenyl-β-naphthylamine:
0.8 ratio mixes.
Further, colorant of the present invention is the green powder in Lip river.
Beneficial effects of the present invention: the present invention be directed to existing rubber seal heat-resistant fireproof etc. performance deficiency
A kind of Rubber seal material of heat-resistant fireproof is provided, the requirement of existing rubber seal can not only be met, and
Rubber seal high temperature resistant, fire-retardant performance are substantially increased, each group assignment system of the present invention is rationally scientific, using silicon rubber, fluorine
As major ingredient of the invention, the use for meeting rubber seal is wanted for rubber and urethane-modified vinyl ester resin
It asks, meanwhile, the auxiliary materials such as addition silica, aluminium oxide, lithia and Nano titanium nitride substantially increase rubber seal
High temperature resistant, flame retardant property, the requirement for the environment that reaches a high temperature.Moreover, using promotor in present component, dispersing agent, preventing
The auxiliary agents such as old agent are mutually promoted between each component so that each component of the present invention is being uniformly dispersed, rubber seal performance obtained
Height has very big practicability and promotional value etc..
Specific embodiment
Carry out the embodiment that the present invention will be described in detail below with reference to embodiment, whereby to the present invention how application technology hand
Section solves technical problem, and the realization process for reaching technical effect can fully understand and implement.
It should be noted that writing length to save specification, unnecessary repetition and waste are avoided, in the feelings not conflicted
Under condition, the features in the embodiments and the embodiments of the present application be can be combined with each other.
A kind of Rubber seal material of the heat-resistant fireproof of embodiment 1,
A kind of Rubber seal material of heat-resistant fireproof, the component including following weight parts by weight:
105 parts by weight of silicon rubber, 35 parts by weight of fluorubber, 15 parts by weight of urethane-modified vinyl ester resin, titanium dioxide
3 parts by weight of silicon, 0.5 parts by weight of aluminium oxide, 2.2 parts by weight of lithia, 0.8 parts by weight of Nano titanium nitride, triallyl cyanurate
13 parts by weight of ester, 3 parts by weight of zinc borate, 3 parts by weight of barium sulfate, 1 parts by weight of calcium hydroxide, 1.1 parts by weight of promotor, dispersing agent
0.5 parts by weight, 1.1 parts by weight of anti-aging agent, 0.4 parts by weight of colorant.
As priority scheme of the invention, promotor of the present invention is triethanolamine.
As priority scheme of the invention, promotor of the present invention is the modified pentaerythrite of polypropylene glycol.
As priority scheme of the invention, dispersing agent of the present invention is that N- phenyl-α-aniline and N- phenyl-β-naphthylamine are pressed
It is mixed according to the ratio that mass ratio is 1:0.8.
As priority scheme of the invention, colorant of the present invention is the green powder in Lip river.
A kind of Rubber seal material of the heat-resistant fireproof of embodiment 2
A kind of Rubber seal material of heat-resistant fireproof, the component including following weight parts by weight:
110 parts by weight of silicon rubber, 30 parts by weight of fluorubber, 20 parts by weight of urethane-modified vinyl ester resin, titanium dioxide
2 parts by weight of silicon, 1 parts by weight of aluminium oxide, 2 parts by weight of lithia, 1.2 parts by weight of Nano titanium nitride, triallylcyanurate 11
Parts by weight, 4 parts by weight of zinc borate, 2 parts by weight of barium sulfate, 3 parts by weight of calcium hydroxide, 0.9 parts by weight of promotor, dispersing agent 0.6
Parts by weight, 1 parts by weight of anti-aging agent, 0.5 parts by weight of colorant.
As priority scheme of the invention, promotor of the present invention is triethanolamine.
As priority scheme of the invention, promotor of the present invention is the modified pentaerythrite of polypropylene glycol.
As priority scheme of the invention, dispersing agent of the present invention is that N- phenyl-α-aniline and N- phenyl-β-naphthylamine are pressed
It is mixed according to the ratio that mass ratio is 1:0.8.
As priority scheme of the invention, colorant of the present invention is the green powder in Lip river.
A kind of Rubber seal material of the heat-resistant fireproof of embodiment 3
A kind of Rubber seal material of heat-resistant fireproof, the component including following weight parts by weight:
115 parts by weight of silicon rubber, 25 parts by weight of fluorubber, 25 parts by weight of urethane-modified vinyl ester resin, titanium dioxide
3 parts by weight of silicon, 1.5 parts by weight of aluminium oxide, 1.8 parts by weight of lithia, 1.6 parts by weight of Nano titanium nitride, triallyl cyanurate
9 parts by weight of ester, 5 parts by weight of zinc borate, 1 parts by weight of barium sulfate, 5 parts by weight of calcium hydroxide, 0.7 parts by weight of promotor, dispersing agent
0.7 parts by weight, 0.9 parts by weight of anti-aging agent, 0.6 parts by weight of colorant.
As priority scheme of the invention, promotor of the present invention is triethanolamine.
As priority scheme of the invention, promotor of the present invention is the modified pentaerythrite of polypropylene glycol.
As priority scheme of the invention, dispersing agent of the present invention is that N- phenyl-α-aniline and N- phenyl-β-naphthylamine are pressed
It is mixed according to the ratio that mass ratio is 1:0.8.
As priority scheme of the invention, colorant of the present invention is the green powder in Lip river.
All above-mentioned this intellectual properties of primarily implementation, there is no this new products of implementation of setting limitation other forms
And/or new method.Those skilled in the art will utilize this important information, above content modification, to realize similar execution feelings
Condition.But all modifications or transformation belong to the right of reservation based on new product of the present invention.
Claims (8)
1. a kind of Rubber seal material of heat-resistant fireproof, it is characterised in that: the component including following weight parts by weight:
Silicon rubber 105-115 parts by weight, fluorubber 25-35 parts by weight, urethane-modified vinyl ester resin 15-25 weight
Part, -3 parts by weight of silica 1, aluminium oxide 0.5-1.5 parts by weight, lithia 1.8-2.2 parts by weight, Nano titanium nitride 0.8-
1.6 parts by weight, triallylcyanurate 9-13 parts by weight, zinc borate 3-5 parts by weight, barium sulfate 1-3 parts by weight, calcium hydroxide
1-5 parts by weight, promotor 0.7-1.1 parts by weight, dispersing agent 0.5-0.7 parts by weight, anti-aging agent 0.9-1.1 parts by weight, colorant
0.4-0.6 parts by weight.
2. a kind of Rubber seal material of heat-resistant fireproof according to claim 1, it is characterised in that: including following heavy
Measure the component of parts by weight:
105 parts by weight of silicon rubber, 35 parts by weight of fluorubber, 15 parts by weight of urethane-modified vinyl ester resin, titanium dioxide
3 parts by weight of silicon, 0.5 parts by weight of aluminium oxide, 2.2 parts by weight of lithia, 0.8 parts by weight of Nano titanium nitride, triallyl cyanurate
13 parts by weight of ester, 3 parts by weight of zinc borate, 3 parts by weight of barium sulfate, 1 parts by weight of calcium hydroxide, 1.1 parts by weight of promotor, dispersing agent
0.5 parts by weight, 1.1 parts by weight of anti-aging agent, 0.4 parts by weight of colorant.
3. a kind of Rubber seal material of heat-resistant fireproof according to claim 1, it is characterised in that: including following heavy
Measure the component of parts by weight:
110 parts by weight of silicon rubber, 30 parts by weight of fluorubber, 20 parts by weight of urethane-modified vinyl ester resin, titanium dioxide
2 parts by weight of silicon, 1 parts by weight of aluminium oxide, 2 parts by weight of lithia, 1.2 parts by weight of Nano titanium nitride, triallylcyanurate 11
Parts by weight, 4 parts by weight of zinc borate, 2 parts by weight of barium sulfate, 3 parts by weight of calcium hydroxide, 0.9 parts by weight of promotor, dispersing agent 0.6
Parts by weight, 1 parts by weight of anti-aging agent, 0.5 parts by weight of colorant.
4. a kind of Rubber seal material of heat-resistant fireproof according to claim 1, it is characterised in that: including following heavy
Measure the component of parts by weight:
115 parts by weight of silicon rubber, 25 parts by weight of fluorubber, 25 parts by weight of urethane-modified vinyl ester resin, titanium dioxide
3 parts by weight of silicon, 1.5 parts by weight of aluminium oxide, 1.8 parts by weight of lithia, 1.6 parts by weight of Nano titanium nitride, triallyl cyanurate
9 parts by weight of ester, 5 parts by weight of zinc borate, 1 parts by weight of barium sulfate, 5 parts by weight of calcium hydroxide, 0.7 parts by weight of promotor, dispersing agent
0.7 parts by weight, 0.9 parts by weight of anti-aging agent, 0.6 parts by weight of colorant.
5. a kind of Rubber seal material of heat-resistant fireproof according to claim 1, it is characterised in that: the promotor
For triethanolamine.
6. a kind of Rubber seal material of heat-resistant fireproof according to claim 1, it is characterised in that: the promotor
For the modified pentaerythrite of polypropylene glycol.
7. a kind of Rubber seal material of heat-resistant fireproof according to claim 1, it is characterised in that: the dispersing agent
It is mixed for N- phenyl-α-aniline and N- phenyl-β-naphthylamine according to the ratio that mass ratio is 1:0.8.
8. a kind of Rubber seal material of heat-resistant fireproof according to claim 1, it is characterised in that: the colorant
For the green powder in Lip river.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811273179.2A CN109401323A (en) | 2018-10-31 | 2018-10-31 | A kind of Rubber seal material of heat-resistant fireproof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811273179.2A CN109401323A (en) | 2018-10-31 | 2018-10-31 | A kind of Rubber seal material of heat-resistant fireproof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109401323A true CN109401323A (en) | 2019-03-01 |
Family
ID=65470456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811273179.2A Pending CN109401323A (en) | 2018-10-31 | 2018-10-31 | A kind of Rubber seal material of heat-resistant fireproof |
Country Status (1)
| Country | Link |
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| CN (1) | CN109401323A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343387A (en) * | 2019-07-09 | 2019-10-18 | 苏州经贸职业技术学院 | Preparation method based on electronic welding real training high temperature protection material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924680A (en) * | 2012-11-16 | 2013-02-13 | 中国兵器工业集团第五三研究所 | Carbamate-modified vinyl ester resin |
| CN104710795A (en) * | 2015-01-28 | 2015-06-17 | 柳州市同进汽车零部件制造有限公司 | Ultrahigh temperature resistant O-shaped rubber sealing ring |
| CN105307857A (en) * | 2013-05-01 | 2016-02-03 | 日东电工株式会社 | Flame-retardant sheet and flame-retardant composite member |
| CN107739458A (en) * | 2017-11-09 | 2018-02-27 | 克里特集团有限公司 | A kind of flat gate valve sealing ring and preparation method thereof |
| CN107915875A (en) * | 2017-12-27 | 2018-04-17 | 安徽微威环保科技有限公司 | A kind of environment-protective rubber material |
-
2018
- 2018-10-31 CN CN201811273179.2A patent/CN109401323A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924680A (en) * | 2012-11-16 | 2013-02-13 | 中国兵器工业集团第五三研究所 | Carbamate-modified vinyl ester resin |
| CN105307857A (en) * | 2013-05-01 | 2016-02-03 | 日东电工株式会社 | Flame-retardant sheet and flame-retardant composite member |
| CN104710795A (en) * | 2015-01-28 | 2015-06-17 | 柳州市同进汽车零部件制造有限公司 | Ultrahigh temperature resistant O-shaped rubber sealing ring |
| CN107739458A (en) * | 2017-11-09 | 2018-02-27 | 克里特集团有限公司 | A kind of flat gate valve sealing ring and preparation method thereof |
| CN107915875A (en) * | 2017-12-27 | 2018-04-17 | 安徽微威环保科技有限公司 | A kind of environment-protective rubber material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343387A (en) * | 2019-07-09 | 2019-10-18 | 苏州经贸职业技术学院 | Preparation method based on electronic welding real training high temperature protection material |
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Application publication date: 20190301 |