KR101224602B1 - Tire rubber composition comprising modified Polytetrafluoroethylene powder - Google Patents
Tire rubber composition comprising modified Polytetrafluoroethylene powder Download PDFInfo
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- KR101224602B1 KR101224602B1 KR1020100040684A KR20100040684A KR101224602B1 KR 101224602 B1 KR101224602 B1 KR 101224602B1 KR 1020100040684 A KR1020100040684 A KR 1020100040684A KR 20100040684 A KR20100040684 A KR 20100040684A KR 101224602 B1 KR101224602 B1 KR 101224602B1
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Abstract
The present invention relates to a rubber composition for a tire comprising a modified PTFE (Polytetrafluoroethylene) powder. More specifically, in a rubber composition for a tire, a raw rubber 100 containing 5 to 30 parts by weight of EPDM rubber in 100 parts by weight of a rubber material It relates to a rubber composition for tires comprising 1 to 10 parts by weight of PTFE powder surface-modified by an electron beam with respect to parts by weight.
The rubber composition for tires of the present invention has excellent physical properties and abrasion characteristics, and has a tendency to decrease the contact angle with water, with the benefit of reducing the amount of anti-aging agent and wax used, which is an advantage of using EPDM rubber as a raw material rubber. A rubber composition for a tire comprising a modified PTFE powder having improved braking force at.
Description
The present invention relates to a rubber composition for a tire comprising a modified polytetrafluoroethylene (PTFE) powder. More specifically, in a rubber composition for a tire, 5 to 30 weight of EPDM rubber is contained in 100 parts by weight of raw rubber. It relates to a rubber composition for a tire comprising 1 to 10 parts by weight of PTFE powder surface-modified by an electron beam with respect to 100 parts by weight of the included raw rubber.
The rubber composition for tires of the present invention has excellent physical properties and abrasion characteristics, and has a tendency to decrease the contact angle with water, with the benefit of reducing the amount of anti-aging agent and wax used, which is an advantage of using EPDM rubber as a raw material rubber. A rubber composition for a tire comprising a modified PTFE powder having improved braking force at.
The main role of the tire is to support and move the vehicle.
There are various parts of the tire for the role of the tire, the external part of the tire is the tread part that is in direct contact with the ground and the part that is the most exposed to the outside of the tire and records a lot of information about the tire There is a tire sidewall rubber on the side of the tire.
Among the tire parts, the sidewall part is the part that is exposed to the outside of the tire most as mentioned above, and a lot of information related to the tire is recorded, so that the amount of impact applied by the part is different and the most Because it is a site that is sensitive to flexion reaction, physical properties such as crack resistance and tear resistance should be good.
The general sidewall rubber composition is composed of natural rubber and butadiene rubber to give excellent physical properties as well as excellent adhesion to carcass rubber. However, since the mixture of these rubbers is significantly lower in environmental resistance, an excessive amount of anti-aging agent is used, which causes a problem of discoloration of rubber for tires.
In order to solve this problem, the method of using EPDM (Ethylene-Propylene-Diene terpolymer) has been studied, but problems such as tensile strength, tear strength, etc., are significantly reduced.
PTFE (Polytetrafluoroethylene) is a material that can be applied to compensate for the disadvantages of the side rubber composition using EPDM rubber, and has excellent resistance to ultraviolet (UV), climate change, high and low temperatures, and oxidation.
The inventors of the present invention while modifying the surface of the PTFE powder, preferably a micro-sized PTFE powder using an electron beam (electron beam) to modify the surface compared to chemical surface modification is simpler than the chemical surface modification, contaminants Less emission, faster mass production, and the higher the intensity of the irradiated electron beam, the greater the number of free radicals, resulting in the formation of strong bonds, which can attach various functional groups as needed. Since the size can be made smaller, it has been found that the thermal bonding, mechanical properties, and dispersibility are increased by the strong bonding force when mixing with rubber. In addition, when irradiating electron beams in air, hydrophilic functional groups are attached to the PTFE surface and chemically treated to reduce the contact angle with water without attaching hydrophilic groups, thereby showing stable movement on the surface of the water film. there was.
Therefore, the present invention is applied to the PTFE powder, preferably a micro-size PTFE powder by applying an electron beam (Electron beam) modified PTFE powder to the tire sidewall rubber composition to improve the rubber composition for the tire To provide.
An object of the present invention is to provide a rubber composition for tires with improved physical properties.
Another object of the present invention is to provide a rubber made of a rubber composition for improved tire properties.
Still another object of the present invention is to provide a tire including a rubber made of a rubber composition having improved physical properties.
In the rubber composition for tires, 1 to 10 parts by weight of PTFE powder surface-modified by an electron beam with respect to 100 parts by weight of raw rubber containing 5 to 30 parts by weight of EPDM rubber in 100 parts by weight of raw rubber It relates to a rubber composition for the tire.
The rubber composition for tires containing EPDM rubber and modified PTFE powder contained in the raw material rubber of the present invention is compared with the conventional rubber composition for tires containing EPDM rubber in the raw material rubber. In addition to the benefits of reducing the amount of anti-aging agent and wax used, the physical properties can be improved, and the contact angle with water can reduce the effect of damping on wet roads.
The present invention represents a rubber composition for tires.
In the rubber composition for tires, polytetrafluoroethylene (PTFE) surface-modified by electron beam irradiation with respect to 100 parts by weight of raw rubber including 5 to 30 parts by weight of EPDM rubber in 100 parts by weight of raw rubber The rubber composition for tires containing 1-10 weight part of powders is shown.
In the present invention, the raw rubber may be EPDM rubber.
In the present invention, the raw material rubber may be a rubber including EPDM rubber.
In the present invention can be used containing 5 to 30 parts by weight of EPDM rubber in 100 parts by weight of the raw material rubber.
In the present invention, 100 to 100 parts by weight of raw rubber may be used including natural rubber (NR) 30 to 75 parts by weight, synthetic rubber 20 to 50 parts by weight and EPDM rubber 5 to 30 parts by weight.
The synthetic rubber in the raw material rubber is solution-polymerized styrene-butadiene rubber (S-SBR), emulsion-polymerized styrene-butadiene rubber (E-SBR), butadiene rubber (BR), modified butadiene rubber, chlorosulfonated polyethylene rubber, epichloro Hydrin rubber, fluorine rubber, silicone rubber, nitrile rubber, hydrogenated nitrile rubber, nitrile butadiene rubber (NBR), modified nitrile butadiene rubber, chlorinated polyethylene rubber, styrene ethylene butylene styrene (SEBS) rubber, ethylene propylene rubber, Ethylene propylene diene (EPDM) rubber, hypalon rubber, chloroprene rubber, ethylene vinyl acetate rubber, acrylic rubber, hydrin rubber, vinyl benzyl chloride styrene butadiene rubber, bromomethyl styrene butyl rubber, maleic acid styrene butadiene rubber, carboxyl Acid styrene butadiene rubber, epoxy isoprene rubber, ethylene propylene maleate, carboxylic acid nitrile butadiene At least one selected from the group of no BIMS (brominated polyisobutyl isoprene-co-paramethyl styrene) can be used.
In the present invention, the main component may be a surface-modified PTFE powder by irradiating the surface of the PTFE powder with an electron beam.
In the present invention, the main component may be a PTFE powder having a particle size of 1 to 10 μm by surface irradiation of the surface of the PTFE powder with an electron beam.
In the present invention, the main component may be a PTFE powder having a particle size of 1 to 5㎛ by surface irradiation of the PTFE powder with an electron beam can be used.
In the present invention, the main component is the surface of the PTFE powder is irradiated with an electron beam, the specific surface area of 1 ~ 10m 2 / g and can be used surface modified PTFE powder.
In the above, when the surface of the PTFE powder is irradiated with an electron beam, an electron beam having an ion energy of 1 keV to 30 keV may be irradiated.
The electron beam having an ion energy of 1 keV to 30 keV generated from any one of Ar, N, Xe, Kr, O, C, Si, H, He, F and Cl when the surface of the PTFE powder is irradiated with an electron beam. Can be used.
In order to achieve the object of the present invention, the surface-modified PTFE powder is applied in various amounts to 1 to 10 parts by weight based on 100 parts by weight of raw rubber. When the surface-modified PTFE powder is used in less than 1 part by weight based on 100 parts by weight of the raw material rubber, the effect of the improvement of physical properties is very small. Too big not appropriate.
The rubber composition for a tire comprising the modified PTFE powder of the present invention may use 30 to 80 parts by weight of a reinforcing agent based on 100 parts by weight of the raw material rubber.
The rubber composition for tires comprising the modified PTFE powder of the present invention may use carbon black as a reinforcing agent.
The rubber composition for tires comprising the modified PTFE powder of the present invention may use silica treated as a reinforcing agent.
The rubber composition for a tire comprising the modified PTFE powder of the present invention may be used as a clay as a reinforcing agent.
The carbon black may be selected from the carbon black of the N300 to N600 series.
The carbon black may have a BET value of 80 to 160 m 2 / g and a dibutyl phthalate (DBP) adsorption value of 80 to 160 ml / 100 g.
The surface-treated silica may be one obtained by spray-coating the surface of silica having a surface area of 90 to 250 m 2 / g as a BET measurement with 3-glycidoxypropyltrimethoxysilane.
The surface-treated silica may be one obtained by spray coating a surface of silica having a surface area of 90 to 250 m 2 / g with 3-aminopropyltriethoxysilane by BET measurement.
The surface-treated silica may be one obtained by spray-coating a surface of silica having a surface area of 90 to 250 m 2 / g with a silane triol.
In the above, the clay may have a particle size of 0.1 ~ 1.0㎛.
In the above, the clay may have a specific surface area of 10 to 30 m 2 / g.
In the above, the clay may have a particle size of 0.1 to 1.0 μm and a specific surface area of 10 to 30 m 2 / g.
Rubber composition for the tire comprising the modified PTFE powder of the present invention may further use corn starch, potato starch, sweet potato starch, tapioca starch, rice starch or wheat starch to improve reinforcement.
Rubber composition for the tire comprising the modified PTFE powder of the present invention is 5 to 20 parts by weight of corn starch, potato starch, sweet potato starch, rice starch, tapioca starch or wheat starch to 100 parts by weight of raw rubber to improve reinforcement In addition, more can be used.
The rubber composition for tires comprising the modified PTFE powder of the present invention is corn starch having a surface area of 2 to 50 m 2 / g as a BET measurement, potato potato having a surface area of 2 to 50 m 2 / g as a BET measurement to improve reinforcement. minutes, a specific surface area by the BET measurements 2~50m 2 / g of potato starch, a surface area by the BET measurements 2~50m 2 / g rice starch, a tapioca starch, or a specific surface area of 2~50m 2 / g by BET measurement Wheat starch having a surface area of 2 to 50 m 2 / g can be used as a BET measurement.
The rubber composition for tires comprising the modified PTFE powder of the present invention is corn starch having a surface area of 2 to 50 m 2 / g as a BET measurement, potato potato having a surface area of 2 to 50 m 2 / g as a BET measurement to improve reinforcement. minutes, a specific surface area by the BET measurements 2~50m 2 / g of potato starch, a surface area by the BET measurements 2~50m 2 / g rice starch, a tapioca starch, or a specific surface area of 2~50m 2 / g by BET measurement 5 to 20 parts by weight of wheat starch having a surface area of 2 to 50 m 2 / g as a BET measurement may be further used.
Rubber composition for a tire comprising the modified PTFE powder of the present invention is a coupler represented by the following formula (1) as a silane coupling agent to improve the dispersibility of silica when using silica as a reinforcing agent or as one of the components of the reinforcing agent As a ring agent, gamma mercapto propyl di-penta-ethoxy tridecaoxy ethoxy silane or bis trisilyl propyl tetrasulfide (TESPT) can be used.
ZSA-Si (OCH 2 H 2 ) 3 ... (1)
In the above formula (1), Z is a C 7 -C 15 alkyl group, preferably C 7 -C 10 alkyl group, A is C═O or CH 2 —CH— (OH).
The silane coupling agent may be used 3 to 10 parts by weight based on 100 parts by weight of the raw material rubber.
The rubber composition for a tire comprising the modified PTFE powder of the present invention may further use a reinforcing filler in addition to the reinforcing agent mentioned above.
At this time, the additional reinforcing filler is titanium dioxide, layered silicate, tungsten, talc, syndiotactic-1,2-polybutadiene based on 100 parts by weight of raw rubber. 10-30 parts by weight of any one selected from the group of (syndiotactic-1,2-polybutadiene, SPB) may be used.
The syndiotactic-1,2-polybutadiene (SPB) may be used with a diameter of 0.01 ~ 0.1㎛ and a specific surface area of 80 ~ 90m 2 / g.
In the above, syndiotactic-1,2-polybutadiene (SPB) may have a diameter of 1 to 10 µm and a specific surface area of 150 to 200 m 2 / g.
In the rubber composition for tires comprising the modified PTFE powder of the present invention, the rubber composition for tires including the modified PTFE powder of the present invention is applied by various components, contents and the like, thereby achieving the object of the present invention. In order to find out that a rubber composition for a tire comprising the modified PTFE powder of the present invention under the above-mentioned conditions was found to be preferable.
Rubber composition for a tire comprising the modified PTFE powder of the present invention of the present invention is selected from the above-mentioned raw material rubber, modified PTFE powder, various additives used in the conventional rubber composition for tires according to the need to appropriately select a predetermined content Can be used as However, these are general components used in a rubber composition for a tire and are not essential components of the present invention.
The present invention includes rubber produced by the above-mentioned rubber composition for tires.
The present invention includes a tire containing a rubber produced by the above-mentioned rubber composition for tires.
The present invention includes a tire containing as a sidewall a rubber produced by the above-mentioned rubber composition for a tire.
The present invention includes a tire containing as a tread the rubber produced by the above-mentioned rubber composition for tires.
The tire represents any one selected from a tire for an automobile, a tire for a bus, a tire for a truck, an tire for an aircraft, and a tire for a motorcycle.
Hereinafter, the present invention will be described by the following examples, comparative examples and test examples. However, the scope of the present invention is not limited by these embodiments.
<Comparative Example>
45 parts by weight of clay as a reinforcing agent and zinc oxide (ZnO) as an activator based on 100 parts by weight of raw material rubber consisting of 50 parts by weight of natural rubber (NR), 15 parts by weight of EPDM rubber and 35 parts by weight of butadiene rubber (BR), as shown in Table 1 below. ) 3.5 parts by weight and 3 parts by weight of stearic acid, 2 parts by weight of adhesive, 4 parts by weight of fixed oil, 3 parts by weight of wax, 1.5 parts by weight of anti-aging agent (2,2,4-trimethyl-1,2-dihydroquinoline, RD) The mixture was placed in a twin screw mixer and blended at 140 ° C. for 5 minutes to obtain a rubber compound.
2.75 parts by weight of sulfur, 1.2 parts by weight of vulcanization accelerator (CZ), and 0.1 parts by weight of vulcanization retardant were added to the rubber compound and vulcanized at 100 ° C. for 3 minutes to prepare a rubber specimen.
Clay as a reinforcing agent was used as the particle size of 0.4㎛, the specific surface area of 21m 2 / g.
≪ Example 1 >
45 parts by weight of clay as a reinforcing agent and zinc oxide (ZnO) as an activator based on 100 parts by weight of raw material rubber consisting of 50 parts by weight of natural rubber (NR), 15 parts by weight of EPDM rubber and 35 parts by weight of butadiene rubber (BR), as shown in Table 1 below. 3.5 parts by weight and 3 parts by weight of stearic acid, 2 parts by weight of adhesive, 4 parts by weight of fixed oil, 3 parts by weight of wax, 1.5 parts by weight of anti-aging agent (RD), 2 parts by weight of modified PTFE twin screw mixer And blended for 5 minutes at 140 ℃ to obtain a rubber compound.
2.75 parts by weight of sulfur, 1.2 parts by weight of vulcanization accelerator (CZ), and 0.1 parts by weight of vulcanization retardant were added to the rubber compound and vulcanized at 100 ° C. for 3 minutes to prepare a rubber specimen.
Clay as a reinforcing agent was used as the particle size of 0.4㎛, the specific surface area of 21m 2 / g.
In the surface-modified PTFE, a particle size of 5 ± 0.1 μm and a specific surface area of 80 ± 1 m 2 / g were used by irradiating the surface of the PTFE micropowder with an electron beam having an ion energy of 10 keV generated from Ar gas.
<Example 2>
A rubber specimen was prepared in the same manner as in Example 1, except that 4 parts by weight of the surface-modified PTFE was used.
<Example 3>
A rubber specimen was prepared in the same manner as in Example 1, except that 6 parts by weight of the surface-modified PTFE was used.
≪ Test Example 1 >
300% modulus, tensile strength, elongation break, and the like of the rubber specimens prepared in the comparative example and the rubber specimens prepared in Examples 1 to 3 according to ASTM related regulations. The physical properties such as hardness (Hardness), wear rate, contact angle, etc. were measured and the results are summarized in Table 2 below.
(kgf / cm 2 )
(kgf / cm 2 )
(%)
* In Table 2, the wear rate indicates wear characteristics, and the wear rate of Examples 1 to 3 is a value converted when the value of the comparative example is 100, which means that the higher the value, the better the wear characteristic.
* In Table 2, the contact angle refers to the contact angle with water on the wet road surface with water, and as the contact angle decreases, the hydrophilicity tends to increase, and at the same time, the braking force on the wet road surface is excellent.
As can be seen in Table 2, the rubber consisting of the rubber composition of Examples 1 to 3 containing the surface-modified PTFE powder of the present invention is a rubber composition of the rubber composition of the comparative example does not contain the surface-modified PTFE powder Compared to other physical properties, wear characteristics were also excellent. In addition, the contact angle with water tends to decrease, and the braking ability on wet roads can be expected to be improved.
<Example 4>
45 parts by weight of surface-modified silica as a reinforcing agent and 3.5 parts by weight of zinc oxide (ZnO) as an activator, based on 100 parts by weight of the raw material rubber consisting of 50 parts by weight of natural rubber (NR), 15 parts by weight of EPDM rubber and 35 parts by weight of butadiene rubber (BR). And 3 parts by weight of stearic acid, 2 parts by weight of adhesive, 4 parts by weight of fixed oil, 3 parts by weight of wax, 1.5 parts by weight of anti-aging agent (RD), 8 parts by weight of surface modified PTFE, 10 parts by weight of corn starch, the following formula (1) 5 parts by weight of the coupling agent represented by the mixture in a twin screw mixer (twin screw mixer) for 5 minutes at 140 ℃ to obtain a rubber compound.
2.75 parts by weight of sulfur, 1.2 parts by weight of vulcanization accelerator (CZ), and 0.1 parts by weight of vulcanization retardant were added to the rubber compound and vulcanized at 100 ° C. for 3 minutes to prepare a rubber specimen.
In the above-described surface modified silica, the surface of silica having a surface area of 90 to 250 m 2 / g as a BET measurement was sprayed with 3-glycidoxypropyltrimethoxysilane.
In the surface-modified PTFE, a particle size of 5 ± 0.1 μm and a specific surface area of 80 ± 1 m 2 / g were used by irradiating the surface of the PTFE micropowder with an electron beam having an ion energy of 10 keV generated from Ar gas.
In the above, the silane coupling agent used the coupling agent represented by following General formula (1).
ZSA-Si (OCH 2 H 2 ) 3 ... (1)
In formula (1), Z is a C 8 alkyl group, A is CH 2 -CH- (OH).
<Example 5>
45 parts by weight of surface-modified silica as a reinforcing agent and 3.5 parts by weight of zinc oxide (ZnO) as an activator, based on 100 parts by weight of the raw material rubber consisting of 50 parts by weight of natural rubber (NR), 15 parts by weight of EPDM rubber and 35 parts by weight of butadiene rubber (BR). And 3 parts by weight of stearic acid, 2 parts by weight of adhesive, 4 parts by weight of fixed oil, 3 parts by weight of wax, 1.5 parts by weight of anti-aging agent (RD), 10 parts by weight of modified PTFE, 10 parts by weight of tapioca starch, the following formula (1) 5 parts by weight of the coupling agent represented by the mixture in a twin screw mixer (twin screw mixer) for 5 minutes at 140 ℃ to obtain a rubber compound.
2.75 parts by weight of sulfur, 1.2 parts by weight of vulcanization accelerator (CZ), and 0.1 parts by weight of vulcanization retardant were added to the rubber compound and vulcanized at 100 ° C. for 3 minutes to prepare a rubber specimen.
In the above-described surface modified silica, a spray coating of 3-aminopropyltriethoxysilane on the surface of silica having a surface area of 200 ± 5 m 2 / g as a BET measurement was used.
In the surface-modified PTFE, a particle size of 5 ± 0.1 μm and a specific surface area of 80 ± 1 m 2 / g were used by irradiating the surface of the PTFE micropowder with an electron beam having an ion energy of 10 keV generated from Ar gas.
In the above, the silane coupling agent used the coupling agent represented by following General formula (1).
ZSA-Si (OCH 2 H 2 ) 3 ... (1)
In the above formula (1), Z is a C 10 alkyl group, A is C = O.
<Example 6>
A rubber specimen was prepared in the same manner as in Siri Si Example 5, except that surface modified silica was spray treated with silane triol to treat the surface of silica having a surface area of 150 ± 5 m 2 / g as a BET measurement. It was.
≪ Test Example 2 &
300% modulus, tensile strength, elongation break, and the like of the rubber specimens prepared in the comparative example and the rubber specimens prepared in Examples 4 to 6 according to ASTM-related regulations. The physical properties such as hardness (Hardness), wear rate, contact angle, etc. were measured and the results are summarized in Table 3 below.
(kgf / cm 2 )
(kgf / cm 2 )
(%)
* In Table 3, the wear rate indicates wear characteristics, and the wear rate of Examples 4 to 6 is a value converted when the value of the comparative example is set to 100, which means that the higher the value, the better the wear characteristic.
* In Table 3, the contact angle refers to the contact angle with water on the wet road surface with water, and as the contact angle decreases, the hydrophilicity tends to increase, and at the same time, the braking force on the wet road surface is excellent.
As can be seen in Table 3, the rubber composition of the rubber composition of Examples 4 to 6 comprising the surface-modified PTFE powder of the present invention is a rubber composition of the rubber composition of the comparative example does not contain the surface-modified PTFE powder Compared to other physical properties, wear characteristics were also excellent. In addition, the contact angle with water tends to decrease, and the braking ability on wet roads can be expected to be improved.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention as defined by the following claims. It will be understood that the invention may be modified and varied without departing from the scope of the invention.
The rubber composition for tires containing EPDM rubber and modified PTFE powder contained in the raw material rubber of the present invention is compared with the conventional rubber composition for tires containing EPDM rubber in the raw material rubber. In addition to the benefits of reducing the amount of anti-aging agent and wax used, the physical properties can be improved, and the contact angle with water has the effect of reducing the damping on wet roads.
Claims (3)
Any one gas selected from Ar, N, Xe, Kr, O, C, Si, H, He, F, and Cl based on 100 parts by weight of the raw material rubber containing 5 to 30 parts by weight of EPDM rubber in 100 parts by weight of the raw material rubber 1 to 10 parts by weight of polytetrafluoroethylene (PTFE) powder surface-modified by electron beam irradiation having an ion energy of 1 keV to 30 keV generated therefrom;
As a reinforcing agent, a surface-treated silica obtained by spray-coating a surface of silica having a surface area of 90 to 250 m 2 / g by BET measurement with 3-glycidoxypropyltrimethoxysilane, and having a surface area of 90 by BET measurement. Surface-treated silica treated by spray coating a surface of silica of ˜250 m 2 / g with 3-aminopropyltriethoxysilane or silica having a surface area of 90 to 250 m 2 / g as silane triol 30 to 80 parts by weight of the surface-treated silica treated by spray coating;
As the silane coupling agent, a coupling agent represented by the following formula (1), gamma mercapto propyl di-penta-ethoxy tridecaoxy ethoxy silane or bistrisilyl propyl tetrasulfide ( bis trisilyl propyl tetrasulfide, TESPT) 3 to 10 parts by weight;
A rubber composition for a tire, comprising: 5 to 20 parts by weight of corn starch, potato starch, sweet potato starch, rice starch, tapioca starch, or wheat starch.
ZSA-Si (OCH 2 H 2 ) 3 ... (1)
In Formula (1), Z is a C 7 -C 15 alkyl group, A is C═O or CH 2 —CH— (OH).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100040684A KR101224602B1 (en) | 2010-04-30 | 2010-04-30 | Tire rubber composition comprising modified Polytetrafluoroethylene powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100040684A KR101224602B1 (en) | 2010-04-30 | 2010-04-30 | Tire rubber composition comprising modified Polytetrafluoroethylene powder |
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| Publication Number | Publication Date |
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| KR20110121199A KR20110121199A (en) | 2011-11-07 |
| KR101224602B1 true KR101224602B1 (en) | 2013-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020100040684A KR101224602B1 (en) | 2010-04-30 | 2010-04-30 | Tire rubber composition comprising modified Polytetrafluoroethylene powder |
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| CN114874555A (en) * | 2022-04-15 | 2022-08-09 | 贵州省材料技术创新基地 | Low-friction coefficient dynamic sealing rubber composite material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5444103A (en) * | 1992-10-05 | 1995-08-22 | Raytech Corporation | Modified polytetrafluoroethylene and process for its production by irradiation |
| JPH1182739A (en) * | 1997-09-03 | 1999-03-26 | Toyo Tire & Rubber Co Ltd | Rubber composition for air spring |
| KR20090129964A (en) * | 2008-06-13 | 2009-12-17 | 후지쿠라 고무 코교 가부시끼가이샤 | Rubber composition and method for producing the same, seal member by using the same and apparatus having the same, and a rubber composition for resistance to dme |
-
2010
- 2010-04-30 KR KR1020100040684A patent/KR101224602B1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5444103A (en) * | 1992-10-05 | 1995-08-22 | Raytech Corporation | Modified polytetrafluoroethylene and process for its production by irradiation |
| JPH1182739A (en) * | 1997-09-03 | 1999-03-26 | Toyo Tire & Rubber Co Ltd | Rubber composition for air spring |
| KR20090129964A (en) * | 2008-06-13 | 2009-12-17 | 후지쿠라 고무 코교 가부시끼가이샤 | Rubber composition and method for producing the same, seal member by using the same and apparatus having the same, and a rubber composition for resistance to dme |
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| KR20110121199A (en) | 2011-11-07 |
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