CN109181119A - A kind of fire gun rubber hose assembly and its production method - Google Patents
A kind of fire gun rubber hose assembly and its production method Download PDFInfo
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- CN109181119A CN109181119A CN201810368492.8A CN201810368492A CN109181119A CN 109181119 A CN109181119 A CN 109181119A CN 201810368492 A CN201810368492 A CN 201810368492A CN 109181119 A CN109181119 A CN 109181119A
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- rubber hose
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- fire
- glue
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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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
- F16L11/085—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more braided layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/34—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with bonding obtained by vulcanisation, gluing, melting, or the like
-
- 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
- C08K2003/026—Phosphorus
-
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
-
- 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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of EPT rubber compositions, are made of the raw material components of following parts by weight: 100 parts of ethylene propylene diene rubber, 0.5~3 part of antioxidant MB, 1~3 part of anti-aging agent RD, 50~100 parts of fast extrude in carbon black N550,50~80 parts of paraffin oil, 1~3 part of stearic acid, 5~10 parts of zinc oxide, 50~160 parts of fire retardant, 1~5 part of vulcanizing agent, accelerant B Z1~3 part, 1~3 part of altax, 1~3 part of Vulcanization accelerator TMTD.The invention also discloses a kind of fire gun rubber hose assemblies, the metal joint including rubber hose and rubber hose both ends, and rubber hose includes the braiding layer using EP rubbers composition as inside and outside glue-line made of raw material, between inside and outside glue-line.The present invention not only ensure that the high temperature resistance of EP rubbers composition, but also reach the V0 grade flame retardant effect of UL94 standard requirements, suitable for producing fire gun rubber hose.
Description
Technical field
The invention belongs to fire-fighting rubber parts technical fields, are related to a kind of EP rubbers composition, using the EP rubbers
Composition is the fire gun rubber hose assembly and its production method of inside and outside glue-line raw material.
Background technique
Fire is the natural and man-made calamities being difficult to avoid that, is required quickly, effectively put out once fire behavior occurs, while being avoided as far as possible pair
The pollution of environment.Portable fire-extinguishing gun, especially backpack fire gun are according to the small-sized of the actual conditions development of fire brigade
Extinguishing device, light portable, flexible, high-effect fire-extinguishing are suitable for small-scale A, B, C class and charging equipment fire, protect
Card firefighters eliminate fire in the first time that the scene of a fire is investigated.
It is connected using rubber hose between the spray gun and fluid reservoir, gas cylinder of backpack fire gun, rubber hose is flexibility
Material can change the direction of spray gun with the intention of operator；Rubber hose is light, not will increase operator's weight bearing；Rubber is soft
Pipe has certain stiffening property, ensure that free-flowing, the sprinkling of extinguishing chemical and compressed gas.As it can be seen that rubber tube be fire gun not
The component part that can or lack.
According to the operating environment requirements of fire gun, rubber hose must have flame-retarding characteristic, this proposes rubber composition
Higher requirement.EP rubbers has preferable high temperature resistance, but flame retardant property is excessively poor, passes through various fire retardants
Addition sacrifices the heat-resisting quantity of the third glue of second although its flame retardant property can be improved simultaneously.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of the third rubbers of second suitable for fire gun rubber hose assembly
Glue composition, fire gun rubber hose assembly and its production method.
The purpose of the present invention is what is be achieved through the following technical solutions:
It is a kind of for the fire gun EPT rubber composition of rubber hose assembly, it is by following parts by weight
Raw material components are made:
Ethylene propylene diene rubber: 100 parts, antioxidant MB (2-mercaptobenzimidazole): 0.5~3 part, anti-aging agent RD (2,2,4-
Trimethyl -1,2- dihyaroquinoline condensate): 1~3 part, fast extrude in carbon black N550:50~100 part, paraffin oil: 50~80 parts,
Stearic acid: 1~3 part, zinc oxide: 5~10 parts, fire retardant: 50~160 parts, vulcanizing agent: 1~5 part, accelerant B Z:1~3 part,
Altax: 1~3 part, Vulcanization accelerator TMTD (the thio thiuram of tetramethyl two): 1~3 part.
Preferably, the EP rubbers composition is made of the raw material components of following parts by weight:
Ethylene propylene diene rubber: 100 parts, antioxidant MB: 0.5~2 part, anti-aging agent RD: 1~3 part, fast extrude in carbon black N550:
50~100 parts, paraffin oil: 50~70 parts, stearic acid: 1~2 part, zinc oxide: 5~10 parts, fire retardant: 90~145 parts, vulcanization
Agent: 1~3 part, accelerant B Z:1~3 part, altax: 1~3 part, Vulcanization accelerator TMTD: 1~3 part.
The ethylene propylene diene rubber is high resiliency, high filled rubber, Mooney viscosity (ML1+4100 DEG C) it is 70~85, second
Alkene content is 60~80%.
Preferably, the vulcanizing agent is vulcanizing agent S-80 (the pre-dispersed medicine glue S-80 of sulphur).
Preferably, the fire retardant is additive flame retardant, is selected from fire retardant M06B (modified magnesium hydroxide), fire retardant
One or more of FR-580 (nitrogen phosphorus flame retardant), red phosphorus.It is further preferred that the fire retardant is selected from fire retardant
FR-580, fire retardant M06B and red phosphorus are according to composition, fire retardant FR -580 and the red phosphorus that weight ratio is 6~10:1 according to weight
Than the composition for 2~6:1.
The selection principle of EP rubbers composition material of the present invention: antioxidant MB and anti-aging agent RD are used in combination, and effectively improve
The ageing-resistant performance of EP rubbers composition；Sulphur body is constituted using sulphur and accelerant B Z, altax, Vulcanization accelerator TMTD
System, curingprocess rate is fast, and is suitable for the different vulcanizations such as steam vulcanization (cure), plastic vulcanization, is not limited by working condition；It is fire-retardant
Agent selects novel, wide spectrum, additive flame retardant efficiently, environmentally friendly, using a kind of exclusive use of fire retardant or a variety of fire retardants
The synergistic flame-retardant system of formation, improves the flame retardant property of sizing material, substantially reduces phenomenon of glowing, and has rubber composition larger
Oxygen index (OI) and higher vertical combustion grade, reach the V0 flame retardant rating of UL94 standard requirements；Pass through fire retardant and fast extrusion
The proportion adjustment of carbon black N550, paraffin oil, improve the flame retardant property of blend, and the vulcanization characteristics of composition and ageing-resistant
Performance is not influenced by fire retardant and is reduced.
It is a further object to provide use the EP rubbers composition to use for the fire gun of inside and outside glue-line raw material
Rubber hose assembly, the metal joint including rubber hose and rubber hose both ends, the rubber hose includes with the present invention
The EP rubbers composition is inside and outside glue-line made of raw material, and the braiding layer between inside and outside glue-line.
The inner glue layer wall thickness about 1.7~2.0mm, braiding layer thickness are about 0.7~1.1mm, and the wall thickness of outer glue-line is about
1.3~1.6mm.The braiding layer is formed by PET braid.The weaving manner is the braiding using two strands of 24 ingot
Mode.Rubber bore and braiding linear diameter, number of spindles, number of share of stock etc. can adjust according to demand.
The metal joint is fixed by way of riveting with the both ends of rubber hose.The metal joint is copper
Connector.
It is a further object to provide the fire gun production method of rubber hose assembly, including it is as follows
Step:
Step (1), the component raw material for weighing formula ratio are added mixer mixing 100 seconds or so, form EP rubbers combination
Object rubber compound；When rubber compound reaches downwind scheme, rubber compound is sent to tablet press machine to 3 knife of its left and right Ge Kai, then by conveyer belt；Glue
Expect up to after tablet press machine, rubber compound need to be carried out to turn over glue, turning over the glue time is no less than 120 seconds, then starts adhesive tape out, spare；
Step (2), adhesive tape squeeze out sebific duct inner glue layer by cold feeder feeding, and with plug, and room temperature parks 4~it passes through afterwards for 24 hours
Braider carries out being knitted to form braiding layer, then adhesive tape is coated on outside of braided layer by extruder extrusion, forms pipe；It squeezes out
Measure and control in the process glue-line wall thickness and sebific duct outer diameter；
Pipe is put into steam vulcanization tank by step (3), vulcanizes 30~45min at 150~155 DEG C；Depoling obtains
Rubber hose；
Step (4), rubber hose carry out severing, installation metal joint and riveted, obtain fire gun rubber hose assembly.
Beneficial effects of the present invention:
After the present invention is by formula adjustment, the high temperature resistance of EP rubbers composition not only ensure that, but also make its fire-retardant effect
Fruit reaches the V0 grade of UL94 standard requirements, simultaneously with the vulcanization characteristics and physical property of benefit, is highly suitable for fire gun
It is prepared with the production of rubber hose.
Rubber hose assembly of the present invention is the raw material of inside and outside glue-line with the rubber composition with flame retardant effect, uses fibre
Dimension braiding layer is framework material, and the efficient combination of rubber layer and braiding layer provides the stiffening property and flexibility of sebific duct, lightweight, soft
It is soft, it is convenient for carrying, is highly suitable for fire gun injection line, not only ensure that extinguishing chemical smoothly sprays, but also can freely change
Spray direction.Meanwhile EP rubbers composition has excellent high temperature resistance, using it is possible to prevente effectively from sebific duct in the scene of a fire
Burning or high temperature cracking；Hose assembly has excellent salt spray resistance characteristic, can for a long time in land and marine long-term storage and
Operation.Using a riveting mode, the stretching of hose assembly and bursting property are excellent, can bear rushing for certain pulling force and extinguishing chemical
It hits.Metal material used in hose assembly has done surface spray treatment, ensure that corrosion resistance, can be in severe ring
It stores and uses for a long time under border, it is unrestricted.
Specific embodiment
Below with reference to embodiment, further description of the specific embodiments of the present invention, and following embodiment is only used for more
Technical em- bodiments of the invention are clearly demonstrated, and not intended to limit the protection scope of the present invention.
Embodiment
Below with reference to specific example, technical scheme is described further.
The raw material components and its proportion (unit: g) of 1 EP rubbers composition of table
A kind of fire gun rubber hose assembly, the metal joint including rubber hose and rubber hose both ends are described
Rubber hose includes the inner glue layer wall thickness 1.9mm using EP rubbers composition described in table 1 as inside and outside glue-line made of raw material, outside
Glue-line wall thickness 1.3mm, the braiding layer thickness 0.9mm between inside and outside glue-line；10 ± 0.3mm of internal diameter of rubber hose.Preparation side
Method is as follows:
Step (1), the raw material that rubber composition is weighed according to table 1 are added mixer mixing 100 seconds or so, form second third
Rubber composition rubber compound；When rubber compound reaches downwind scheme, send rubber compound to 3 knife of its left and right Ge Kai, then by conveyer belt
Tablet press machine.After sizing material reaches tablet press machine, rubber compound is carried out to turn over glue, turning over the glue time is no less than 120 seconds, then start adhesive tape out,
It is spare；
Step (2), EP rubbers composition are through quickly detection (performance is as shown in table 2)；The adhesive tape of EP rubbers composition
By cold feeder feeding, withPlug squeeze out sebific duct inner glue layer, room temperature parks 8h, and warp loom uses two strands of 24 ingot
Weaving manner, litzendraht wire be PET material；The adhesive tape extrusion of EP rubbers composition is coated on braiding finally by extruder
Outside line, pipe is formed；
Prepared pipe is put into steam vulcanization tank by step (3), is warming up to 150 DEG C, vulcanizes 45min；It vulcanizates
After pipe parks 4 hours, depoling obtains sebific duct；
Above-mentioned sebific duct is cut into 1000mm long by step (4), the metal joint of correspondingly-sized is installed, using the side of riveting
Formula obtains fire gun rubber hose assembly according to riveted in the riveted size and the margin of tolerance of design.
The performance parameter of 2 EPT rubber composition of table
Conventional tensile property by standard GB/T 528-2009 carry out, heat aging performance by standard GB/T 3512-2001 into
Row test, the testing standard of brittleness temperature are GB/T 1682-2014, and flame retardant property testing standard is the V grade test in UL94.
By comparative example 1 as it can be seen that after the type change of carbon black, can not only reduce EP rubbers composition it is conventional stretch and
Ageing properties also affect flame retardant effect.And in comparative example 2 and comparative example 3, the dosage of carbon black N550 and fire retardant exceeds one
Determine range, be affected to the comprehensive performance of EP rubbers composition, reduces carbon black loading, will affect the heat-proof aging of composition
Performance, the and when dosage of fire retardant is lower, flame-retardancy requirements are not achieved in composition, at the same by comparative example 2 it is found that due to fire retardant and
Fast extrude in carbon black N550, paraffin oil proportion far beyond the scope of the invention, further result in rubber hose assembly rough surface,
Air-tightness decline, is not suitable for as fire gun injection line.
The performance test data of table 3 fire gun rubber hose assembly
The above performance test is tested by corresponding national standard, and standard GB/T 30313- is pressed in tensile strength test
2013 carry out, and bursting property test is carried out by GB/T 7127.1-2000 standard, and salt spray test presses GB/T 10125-2012 standard
It carries out.
The above is only preferred embodiments of the invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of for the fire gun EPT rubber composition of rubber hose assembly, it is characterised in that it is by following heavy
The raw material components of amount number are made:
Ethylene propylene diene rubber: 100 parts, antioxidant MB: 0.5~3 part, anti-aging agent RD: 1~3 part, fast extrude in carbon black N550:50~
100 parts, paraffin oil: 50~80 parts, stearic acid: 1~3 part, zinc oxide: 5~10 parts, fire retardant: 50~160 parts, vulcanizing agent: 1
~5 parts, accelerant B Z:1~3 part, altax: 1~3 part, Vulcanization accelerator TMTD: 1~3 part.
2. EP rubbers composition according to claim 1, it is characterised in that it is the raw material group by following parts by weight
Divide and be made:
Ethylene propylene diene rubber: 100 parts, antioxidant MB: 0.5~2 part, anti-aging agent RD: 1~3 part, fast extrude in carbon black N550:50~
100 parts, paraffin oil: 50~70 parts, stearic acid: 1~2 part, zinc oxide: 5~10 parts, fire retardant: 90~145 parts, vulcanizing agent: 1
~3 parts, accelerant B Z:1~3 part, altax: 1~3 part, Vulcanization accelerator TMTD: 1~3 part.
3. EP rubbers composition according to claim 1 or 2, it is characterised in that the vulcanizing agent is vulcanizing agent S-
80。
4. EP rubbers composition according to claim 1 or 2, it is characterised in that the fire retardant is additive flame retardant
Agent is selected from one or more of fire retardant M06B, fire retardant FR -580, red phosphorus.
5. EP rubbers composition according to claim 4, it is characterised in that the fire retardant is selected from fire retardant FR-
580, fire retardant M06B and red phosphorus are according to composition, fire retardant FR -580 and the red phosphorus that weight ratio is 6~10:1 according to weight ratio
For the composition of 2~6:1.
6. a kind of fire gun rubber hose assembly, it is characterised in that the metal including rubber hose and rubber hose both ends connects
Head, the rubber hose include using EP rubbers composition described in claim 1 as inside and outside glue-line made of raw material, with
And the braiding layer between inside and outside glue-line.
7. fire gun according to claim 6 rubber hose assembly, it is characterised in that the inner glue layer wall thickness 1.7~
2.0mm, braiding layer is with a thickness of 0.7~1.1mm, 1.3~1.6mm of wall thickness of outer glue-line；The braiding layer is compiled by PET litzendraht wire
It knits.
8. fire gun according to claim 6 rubber hose assembly, it is characterised in that the metal joint passes through a little
The mode of riveting and the both ends of rubber hose are fixed.
9. the fire gun as claimed in claim 6 production method of rubber hose assembly, it is characterised in that include the following steps:
Step (1), the component raw material for weighing formula ratio are added mixer mixing and form EP rubbers composition rubber compound；It is kneaded
When glue reaches downwind scheme, rubber compound is sent to tablet press machine to 3 knife of its left and right Ge Kai, then by conveyer belt；Sizing material reaches tablet press machine
Afterwards, rubber compound is carried out turning over glue, turning over the glue time is no less than 120 seconds, then starts adhesive tape out；
Step (2), adhesive tape squeeze out sebific duct inner glue layer by cold feeder feeding, and with plug, park 4~for 24 hours afterwards through braider into
Row is knitted to form braiding layer, then adhesive tape is coated on outside of braided layer by extruder extrusion, forms pipe；
Pipe is put into steam vulcanization tank by step (3), vulcanizes 30~45min at 150~155 DEG C；Depoling obtains rubber
Hose；
Step (4), rubber hose carry out severing, installation metal joint and riveted, obtain fire gun rubber hose assembly.
10. the fire gun according to claim 9 production method of rubber hose assembly, it is characterised in that in step (2),
Using 24 ingot, two strands of weaving manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368492.8A CN109181119B (en) | 2018-04-23 | 2018-04-23 | Rubber hose assembly for fire extinguishing gun and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368492.8A CN109181119B (en) | 2018-04-23 | 2018-04-23 | Rubber hose assembly for fire extinguishing gun and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109181119A true CN109181119A (en) | 2019-01-11 |
| CN109181119B CN109181119B (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810368492.8A Active CN109181119B (en) | 2018-04-23 | 2018-04-23 | Rubber hose assembly for fire extinguishing gun and production method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN109181119B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114940791A (en) * | 2022-05-16 | 2022-08-26 | 南京利德东方橡塑科技有限公司 | Flame-retardant EPDM high-speed motor train unit air brake hose |
| EP4196529A4 (en) * | 2020-08-13 | 2024-05-01 | Dow Global Technologies Llc | Halogen free flame retardant elastomer composition, articles prepared from same and preparation methods thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135214A (en) * | 2011-01-10 | 2011-07-27 | 安徽中鼎密封件股份有限公司 | Rubber hose assembly and preparation method thereof |
| CN106380706A (en) * | 2016-11-04 | 2017-02-08 | 南京利德东方橡塑科技有限公司 | Environment-friendly type low-smoke flame-retardant insulated rubber composition, preparation method, use and product applying composition |
-
2018
- 2018-04-23 CN CN201810368492.8A patent/CN109181119B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135214A (en) * | 2011-01-10 | 2011-07-27 | 安徽中鼎密封件股份有限公司 | Rubber hose assembly and preparation method thereof |
| CN106380706A (en) * | 2016-11-04 | 2017-02-08 | 南京利德东方橡塑科技有限公司 | Environment-friendly type low-smoke flame-retardant insulated rubber composition, preparation method, use and product applying composition |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4196529A4 (en) * | 2020-08-13 | 2024-05-01 | Dow Global Technologies Llc | Halogen free flame retardant elastomer composition, articles prepared from same and preparation methods thereof |
| CN114940791A (en) * | 2022-05-16 | 2022-08-26 | 南京利德东方橡塑科技有限公司 | Flame-retardant EPDM high-speed motor train unit air brake hose |
| CN114940791B (en) * | 2022-05-16 | 2023-09-22 | 南京利德东方橡塑科技有限公司 | Flame-retardant EPDM high-speed motor train unit air brake hose |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109181119B (en) | 2021-10-29 |
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