CN101289551B - Agent for preventing tyres form shoulder separating - Google Patents
Agent for preventing tyres form shoulder separating Download PDFInfo
- Publication number
- CN101289551B CN101289551B CN2008100170026A CN200810017002A CN101289551B CN 101289551 B CN101289551 B CN 101289551B CN 2008100170026 A CN2008100170026 A CN 2008100170026A CN 200810017002 A CN200810017002 A CN 200810017002A CN 101289551 B CN101289551 B CN 101289551B
- Authority
- CN
- China
- Prior art keywords
- rare earth
- compound
- agent
- nitride
- silane compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention discloses a tyre anti-shoulder vacancy agent which is characterized in that the compositions of the agent in weight ratio are: 100 portions of nano SiO2, 1 to 20 portions of silane compound TESPT, 1 to 10 portions of silane compound TESPD, 5 to 15 portions of nitride, 1 to 10 portions of first rare-earth compound and 1 to 8 portions of second rare-earth compound; firstly, the nano SiO2 and the nitride are added into a vibration grinder to mix according to the ratio; secondly, the rare-earth compounds are added into the grinder to mix according to the ratio; thirdly, the mixed material is conveyed to a modifying machine, diluted silane compound TESPT and silane compound TESPD are added into for reaction; finally, the tyre anti-shoulder vacancy agent is made by cooled, detected and packed. The tyre anti-shoulder vacancy agent is a good multifunctional rubber addition agent and has the performances of low heat generation, high reinforcement, good heat conductivity, flexing resistance, high temperature resistance and aging resistance, etc.
Description
Technical field:
The present invention relates to the rubber ingredients technical field, is a kind of agent for preventing tyres form Shoulder Separating specifically.
Background technology:
Tire is subjected to making tire scratch middle work in contrary flexure constantly from the power of load-carrying aspect in the process of moving because between each position of tire, the intermolecular relative movement of starting material, friction produce tire and accumulated a large amount of heats.Particularly the thickest position (tire shoulder) of tire more is difficult to heat radiation and causes the tire shoulder place constantly to be heated up.Along with the savings of this heat that travels of tire is more and more, temperature is more and more higher, and this high temperature has seriously destroyed vulcanized rubber, under the effect of hot oxygen cross-link bond is ruptured, and the cross-linking density of rubber sharply descends, and causes the delamination of tire shoulder place at last and scraps." the shoulder sky that Here it is says usually.
Through the practice investigation, find that " bias tyre is takeed on sky in early days " is the major cause that influences the tire functional quality.Although the turnout of radial-ply tyre is improving year by year, the demand of oblique tire still accounts for sizable ratio in considerable time, therefore will improve the quality of oblique tire significantly, and it is crucial solving the shoulder sky.
The current strengthening agent that mainly uses in rubber industry is a carbon black, and it can give tire good reinforcing property, is the indispensable supporting material of rubber item.But giving birth to of it is hot big, and it is maximum to account for weight quota in the Synergist S-421 95 that tire uses, so carbon black is to be a main raw material of the heat of inside tires generation in starting material.
Tire is scratched middle work in contrary flexure constantly because between each position of tire, the intermolecular relative movement of starting material, friction produce tire and accumulated a large amount of heats.Subduing motion is the major reason that tire produces heat.
To this auxiliary agent both domestic and external company development and produce multiple New-type adjuvant, at solving the bias tyre tire shoulder problem of coming to nothing in early days.Wherein mainly contain anti-revert agent home-made DL268, HS-258, silane compound TESPT ... Deng the minimizing that reduces the sizing material cross-linking density in order to tire in the process of moving, guarantee properties of rubber, delay to take on empty generation; It can improve bounding force between the rubber unvulcanizate composite bed as tackifier the acetylene resol that Germany bus husband produces; The rubber leveler that S.S company produces increases sizing material viscous force and brute force in order to improve the mixing between the opposed polarity rubber.These auxiliary agents all are to vacate from certain aspect raising properties of rubber postponement wheel tire shoulder now to be purpose to have unicity.Have following deficiency aspect several in application: (1) lacks the function of heat conduction aspect; (2) rubber there is not direct reinforcing effect; (3) lack the anti-function that deflects aspect of performance; (4) effect is single, only improves properties of rubber from certain aspect.
In addition, the tyre production enterprise that also has utilizes the Silanization reaction of white carbon black and silane compound to carry out in mixing, is made into to give birth to the low sizing material of heat.This sizing material reaction temperature difference big (up to 20 ℃), the storeroom contact is inhomogeneous, and side effect is big, and the material waste is big, the silanization weak effect.
Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art, a kind of agent for preventing tyres form Shoulder Separating is provided, have that low-heat-generation, high reinforcement, heat conduction are subdued well, anti-, multi-functional rubber ingredients such as high temperature resistant.Mainly solving existing rubber ingredients lacks thermal conductivity, lacks direct reinforcement to rubber, anti-ly deflects problems such as poor performance, effect are single.
In order to achieve the above object, the present invention is achieved in that agent for preventing tyres form Shoulder Separating, and its special character is that it is made up of the following weight proportion raw material: nanometer SiO
2100 parts, silane compound TESPT 1-20 part, silane compound TESPD 1-10 part, nitride 5-15 part, first rare earth compound 1-10 part, second rare earth compound 1-8 part, nitride is BN, AlN, Si
3N
4In a kind of, first rare earth compound is CeO
2, a kind of among CeN, the LaN, second rare earth compound is Nd
2O
3, La
2O
3, two kinds mixing among NdN, the PrN.
Agent for preventing tyres form Shoulder Separating of the present invention, it is made up of the following weight proportion raw material: nanometer SiO
2100 parts, silane compound TESPT 5-15 part, silane compound TESPD 2-8 part, nitride 7-13 part, first rare earth compound 2-10 part, second rare earth compound 1-6 part, nitride is BN, AlN, Si
3N
4In a kind of, first rare earth compound is CeO
2, a kind of among CeN, the LaN, second rare earth compound is Nd
2O
3, La
2O
3, two kinds mixing among NdN, the PrN.
Agent for preventing tyres form Shoulder Separating of the present invention, it is made up of the following weight proportion raw material: nanometer SiO
2100 parts, 5 parts of 10 parts of silane compound TESPT, silane compound TESPD, 10 parts on nitride, 6 parts of first rare earth compounds, 4 parts of second rare earth compounds, nitride is BN, AlN, Si
3N
4In a kind of, first rare earth compound is CeO
2, a kind of among CeN, the LaN, second rare earth compound is Nd
2O
3, La
2O
3, two kinds mixing among NdN, the PrN.
The preparation method of agent for preventing tyres form Shoulder Separating of the present invention, it comprises following processing step:
A, nanometer SiO
2Compound with nitride: with nanometer SiO
2Pour oscillating mill with nitride into by formula rate, temperature: normal temperature-100 ℃; Time: 10-40 branch;
B, compound with rare earth compound: rare earth compound added in the vibrations shredder in the above-mentioned a item by formula rate grind temperature: 80 ℃-150 ℃, time 5-15 minute;
C, Silanization reaction: the compound of b step is transported in the modifying machine with screw rod, the equipment rotating speed is raised to 800-1600 rev/min gradually, when temperature rises to 60-120 ℃, the silane compound TESPD that spraying type ground adds diluted is up to adding by formula rate, little by little add silane compound TESPT then in the same way, after adding, heat up and be controlled at 120-160 ℃; Reaction times 15-35 branch;
D, discharge, cooling, check, pack agent for preventing tyres form Shoulder Separating of the present invention.
Nanometer SiO in the above-mentioned raw materials
2The two carries out Silanization reaction to generate the HR highly reinforcing rubber ingredients of low-heat-generation is agent for preventing tyres form Shoulder Separating with silane compound, adds to replace the part carbon black in the rubber, reduces the heat of giving birth in the tire running process, reduces the destruction to the rubber cross key; Nitride and rare earth compound two kinds and usefulness utilize their good characteristic separately to make agent for preventing tyres form Shoulder Separating have that heat conduction is subdued well, anti-, high temperature resistant, ageing-resistant etc. performance.
Agent for preventing tyres form Shoulder Separating of the present invention is mainly used in the rubber item of tire and high performance requirements, is that a kind of bias tyre tire shoulder that solves is takeed on empty auxiliary agent in early days; Also be radial tyre and high-performance rubber goods, reduce the living heat of sizing material, improve intensity, improve clinging power between the parts, improve anti-subduing and ageing-resistant performance, the necessary rubber ingredients of raising thermal conductivity.
Compared with the prior art agent for preventing tyres form Shoulder Separating of the present invention has outstanding substantive distinguishing features and marked improvement, 1, in agent for preventing tyres form Shoulder Separating, adopts rare earth compound and nitride, make it possess multifunctionality high temperature resistant, ageing-resistant, warping strength, that heat conduction is good, result of use is remarkable.Agent for preventing tyres form Shoulder Separating has the significantly anti-effect that deflects in addition, and strong at the same defensive ability/resistance ability that deflects in the distortion, the destruction of causing is little, thereby has delayed the generation that tire shoulder comes to nothing; 2, strictly control nanometer SiO
2With nitride, rare earth compound compound after, the temperature and time of Silanization reaction, between powder particle refinement afterreaction thing contact fully, reaction thoroughly, silanization is effective, has improved the quality of agent for preventing tyres form Shoulder Separating significantly.Because carbon black is the main strengthening agent of rubber, consumption is big in prescription, and give birth to maximum a kind of of heat in the carbon black starting material that to be rubber used, be the major cause of the viviparous heat of wheel, utilize one of characteristic low-heat-generation, the high reinforcement of agent for preventing tyres form Shoulder Separating, the part carbon black that replaces in the sizing compound formula has not only improved the sizing material physical and mechanical properties, reduced the heat of giving birth to of sizing material simultaneously, accelerated the heat conduction of sizing material, reduced the accumulation of heat, reduced the carcass temperature rise at the tire shoulder place; 3, adopt recombining process, the continuous shaking of making high frequency, little amplitude by equipment makes material intense impact, shearing, grinding through grinding medium in mill tube, broken the high state of aggregation of powder particle, make between the component of high surface energy component and low surface energy and attract each other consumingly, reach the mixing of the high evenness of prescription material, and produced synergistic effect between component, improved the overall performance of compound material; 4, auxiliary agent has good multifunctionality, and for solving wheel tire shoulder sky, it is with strong points, resists face width, thereby effect significantly can improve tire work-ing life significantly.
Embodiment:
In order to understand better and to implement, describe agent for preventing tyres form Shoulder Separating of the present invention in detail below in conjunction with embodiment.
Embodiment 1, accurately takes by weighing nanometer SiO
2100Kg, silane compound TESPT10Kg, silane compound TESPD5Kg, nitride Si
3N
410Kg, the first rare earth compound CeO
25Kg, the second rare earth compound Nd
2O
3With La
2O
3Mixture 4Kg, with nanometer SiO
2With Si
3N
4Pour oscillating mill into, temperature: 50 ℃; Time: 25 minutes, add CeO then
2, Nd
2O
3And La
2O
3The rare earth compound material further shakes grinding at 115 ℃, 10 minutes time, compound is transported in the modifying machine with screw rod, and the equipment rotating speed is raised to 1200 rev/mins gradually, when temperature rises to 90 ℃, the silane compound TESPD that spraying type ground adds diluted is up to adding, little by little add silane compound TESPT then in the same way, after adding, heat up and be controlled at 140 ℃, 25 minutes reaction times, carry out packing after discharge, cooling, the check agent for preventing tyres form Shoulder Separating of the present invention.
Embodiment 2, accurately take by weighing nanometer SiO
2100Kg, silane compound TESPT 5Kg, silane compound TESPD 8Kg, nitride AlN 7Kg, the first rare earth compound CeN 3Kg, the second rare earth compound NdN and PrN 6Kg are with nanometer SiO
2Pour oscillating mill into AIN, temperature: 35 ℃; Time: 30 minutes, add rare earth compound CeN, NdN and PrN then in above-mentioned shredder, 90 ℃ of temperature, ground 13 minutes, compound is transported in the modifying machine with screw rod, equipment is changeed vibrations speed be raised to 1000 rev/mins gradually, when temperature rises to 100 ℃, the coupling agent TESPD that spraying type ground adds diluted is up to adding, little by little add coupling agent TESPT then in the same way, after adding, heating up is controlled at 130 ℃, discharge, cooling, check after 30 minutes reaction times, pack agent for preventing tyres form Shoulder Separating of the present invention.
Embodiment 3, accurately take by weighing nanometer SiO
2100Kg, silane compound TESPT 15Kg, silane compound TESPD 2Kg, nitride Si
3N
413Kg, the first rare earth compound LaN 8Kg, the second rare earth compound Nd
2O
3With NdN 3Kg, with nanometer SiO
2With Si
3N
4Pour oscillating mill into, temperature: 80 ℃; Time: 15 minutes, add rare earth compound LaN, Nd then
2O
3And NdN, vibrations are ground, 140 ℃ of temperature, are transported to compound in the modifying machine with screw rod 8 minutes time, the equipment rotating speed is raised to 1400 rev/mins gradually, when temperature rose to 80 ℃, the coupling agent TESPD that spraying type ground adds diluted little by little added coupling agent TESPT then in the same way up to adding, after adding, heat up and be controlled at 150 ℃; 20 minutes reaction times, last discharge, cooling, check, pack agent for preventing tyres form Shoulder Separating of the present invention.
Embodiment 4, accurately take by weighing nanometer SiO
2100Kg, silane compound TESPT 1Kg, silane compound TESPD 10Kg, nitride BN 5Kg, the first rare earth compound CeO
21Kg, the second rare earth compound La
2O
3With NdN 8Kg, with nanometer SiO
2BN pours oscillating mill into nitride, temperature: normal temperature; Time: 40 minutes, add rare earth compound CeO then
2, La
2O
3And NdN, join in the above-mentioned shredder, 80 ℃ of temperature, are transported to compound in the modifying machine with screw rod 15 minutes time, the equipment rotating speed is raised to 800 rev/mins gradually, when temperature rose to 120 ℃, the silane compound TESPD that spraying type ground adds diluted little by little added silane compound TESPT then in the same way up to adding, after adding, heat up and be controlled at 120 ℃; 35 minutes reaction times, back discharge, cooling, check, pack agent for preventing tyres form Shoulder Separating of the present invention.
Embodiment 5, accurately take by weighing nanometer SiO
2100Kg, silane compound TESPT 20Kg, silane compound TESPD 1Kg, nitride AlN 15Kg, the first rare earth compound CeN 10Kg, the second rare earth compound Nd
2O
3With PrN 1Kg, with nanometer SiO
2AIN pours oscillating mill into nitride, temperature: 100 ℃; Time: 10 minutes, then with rare earth compound CeN, Nd
2O
3Join in the above-mentioned shredder with PrN, 150 ℃ of temperature, 5 minutes time, compound is transported in the modifying machine with screw rod, then the equipment rotating speed is raised to 1600 rev/mins gradually, when temperature rises to 60 ℃, the silane compound TESPD that spraying type ground adds diluted is up to adding, little by little add silane compound TESPT then in the same way, after adding, heat up and be controlled at 160 ℃; 15 minutes reaction times, discharge, cooling, check then, pack agent for preventing tyres form Shoulder Separating of the present invention.
Adopt the agent for preventing tyres form Shoulder Separating of embodiments of the invention 1, in the tyre stock prescription, use agent for preventing tyres form Shoulder Separating instead of part carbon black, make that the 8.25-16-14P tire has carried out long duration test and high speed test is as follows.
1, long duration test foundation: GB/T4501-1998
Wall scroll tire rated load 1800kg speed per hour: 55km/h
By GB requirement first experimental stage: 65% of rate of load condensate was travelled 7 hours; Subordinate phase: travelled 16 hours by 85% of rate of load condensate; Phase III: 100% of rate of load condensate was travelled 24 hours; Sail 47 hours these tires just for qualified by above three phases concurrence.
A test of picked at random tire by behind the above-mentioned three phases, exceeds the GB requirement, continues to strengthen rate of load condensate 110% and travels 10 hours; Rate of load condensate 120% was travelled 10 hours; 130% of rate of load condensate was travelled 10 hours; 140% of rate of load condensate was travelled 10 hours; 150% of rate of load condensate was travelled 36 hours, and concurrence was sailed 123 hours, and 6765 kilometers of actual service lifes stop test because the inner tube of a tyre damages, and cover tire is still intact.
The contrast experiment, the tyres durable test that does not have to use an empty agent of anti-shoulder, is mostly come to nothing and is scrapped with tire shoulder generally about 100 hours from statistical figure.
2, high speed test foundation: GB/T7035-93
High speed test: by GB regulation high speed test four-stage altogether: fs: the speed per hour 80km/h 120min that travels; Subordinate phase: the speed per hour 80km/h 30min that travels; Phase III: the speed per hour 90km/h 30min that travels; Quadravalence section: speed per hour 100km/h travel the 30min tire by this tire behind the above four-stage just for qualified.
A test of picked at random tire carries out high speed test, has waltzed through the four-stage of regulation.In order to investigate the height of its quality further, exceed the GB requirement, improve speed per hour to 110km/h, the 30min clock that continues to have travelled improves speed per hour once more to 120km/h, behind the 30min clock that continues to have travelled, observe the tire shoulder of this tire, do not have the empty phenomenon of shoulder and occur, tire is still intact.
Simultaneous test, the tire to the same specification of not adding agent for preventing tyres form Shoulder Separating has carried out high speed test.After having passed through four-stage, not speed-raising still continues to travel with the 100km/h speed per hour for some reason, has only run just just to come to nothing at the tire shoulder place and scrap at tire in 10 minutes.
Claims (4)
1. agent for preventing tyres form Shoulder Separating is characterized in that it is made up of the following weight proportion raw material: nanometer SiO
2100 parts, silane compound TESPT 1-20 part, silane compound TESPD 1-10 part, nitride 5-15 part, first rare earth compound 1-10 part, second rare earth compound 1-8 part, nitride is BN, AlN, Si
3N
4In a kind of, first rare earth compound is CeO
2, a kind of among CeN, the LaN, second rare earth compound is Nd
2O
3, La
2O
3, two kinds mixing among NdN, the PrN.
2. agent for preventing tyres form Shoulder Separating according to claim 1, it is made up of the following weight proportion raw material: nanometer SiO
2100 parts, silane compound TESPT 2-15 part, silane compound TESPD 2-8 part, nitride 7-13 part, first rare earth compound 2-10 part, second rare earth compound 1-6 part, nitride is BN, AlN, Si
3N
4In a kind of, first rare earth compound is CeO
2, a kind of among CeN, the LaN, second rare earth compound is Nd
2O
3, La
2O
3, two kinds mixing among NdN, the PrN.
3. agent for preventing tyres form Shoulder Separating according to claim 2, it is made up of the following weight proportion raw material: nanometer SiO
2100 parts, 5 parts of 10 parts of silane compound TESPT, TESPD, 10 parts on nitride, 6 parts of first rare earth compounds, 4 parts of second rare earth compounds, nitride is BN, AlN, Si
3N
4In a kind of, first rare earth compound is CeO
2, a kind of among CeN, the LaN, second rare earth compound is Nd
2O
3, La
2O
3, two kinds mixing among NdN, the PrN.
4. the preparation method of claim 1 or 2 or 3 described agent for preventing tyres form Shoulder Separating is characterized in that it comprises following processing step:
A, nanometer SiO
2Compound with nitride: with nanometer SiO
2Pour oscillating mill with nitride into by formula rate, temperature: normal temperature-100 ℃; Time: 10-40 branch;
B, compound with rare earth compound: rare earth compound added in the oscillating mill in the above-mentioned a item by formula rate grind temperature: 80 ℃-150 ℃, time 5-15 minute;
C, Silanization reaction: the compound of b step is transported in the modifying machine with screw rod, the equipment rotating speed is raised to 800-1600 rev/min gradually, when temperature rises to 60-120 ℃, the silane compound TESPD that spraying type ground adds diluted is up to adding by formula rate, little by little add silane compound TESPT then in the same way, after adding, heat up and be controlled at 120-160 ℃; Reaction times 15-35 branch;
D, discharge, cooling, check, packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100170026A CN101289551B (en) | 2008-06-14 | 2008-06-14 | Agent for preventing tyres form shoulder separating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100170026A CN101289551B (en) | 2008-06-14 | 2008-06-14 | Agent for preventing tyres form shoulder separating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101289551A CN101289551A (en) | 2008-10-22 |
| CN101289551B true CN101289551B (en) | 2010-12-08 |
Family
ID=40034007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100170026A Expired - Fee Related CN101289551B (en) | 2008-06-14 | 2008-06-14 | Agent for preventing tyres form shoulder separating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101289551B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104262899B (en) * | 2014-10-24 | 2016-03-23 | 山东阳谷华泰化工股份有限公司 | A kind of tire empty agent of anti-shoulder and preparation method thereof and application |
| FR3029929B1 (en) * | 2014-12-15 | 2018-02-02 | Michelin & Cie | REINFORCED RUBBER COMPOSITION FOR PNEUMATIC |
| CN105694106A (en) * | 2016-04-26 | 2016-06-22 | 烟台宏泰达化工有限责任公司 | Rubber assistant and preparing method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1886451A (en) * | 2003-10-20 | 2006-12-27 | 尤尼罗亚尔化学公司 | Rubber compositions and methods for decreasing the tangent delta value and abrasion index |
-
2008
- 2008-06-14 CN CN2008100170026A patent/CN101289551B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1886451A (en) * | 2003-10-20 | 2006-12-27 | 尤尼罗亚尔化学公司 | Rubber compositions and methods for decreasing the tangent delta value and abrasion index |
Non-Patent Citations (1)
| Title |
|---|
| JP特表2004-511598A 2004.04.15 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101289551A (en) | 2008-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Dobrotă et al. | An innovative method in the regeneration of waste rubber and the sustainable development | |
| CN101691028B (en) | Manufacturing method for resin grinding wheel cutting piece with function of cutting soft and hard materials | |
| CN103922770B (en) | Self-flowing castable with waste blast furnace main runner material as main raw material and making method of self-flowing castable | |
| CN105111675B (en) | A kind of calcium carbonate crystal whisker reinforced resin-Rubber base friction material and preparation method thereof | |
| JP6299711B2 (en) | Rolled concrete pavement | |
| CN101463167A (en) | Visco-elastic damping material | |
| CN104193373B (en) | The regeneration method of waste and old aluminium sesquioxide-silicon carbide-carbon fire resistant materials | |
| CN101289551B (en) | Agent for preventing tyres form shoulder separating | |
| CN103289143A (en) | Energy-saving tire tread rubber composition and preparation method thereof | |
| CN103073210A (en) | Modified high carbon ferro-chrome slag aggregate for road concrete and preparation method of modified high carbon ferro-chrome slag aggregate | |
| CN102515797B (en) | Low-cost magnesium gunning material and its preparation method | |
| CN103396155A (en) | Aerated concrete block and preparation method thereof | |
| CN105777148A (en) | Coil daub for medium-frequency induction furnace and preparation method thereof | |
| CN111925189A (en) | Composite magnesia carbon brick and preparation method thereof | |
| CN103291785B (en) | Modification regeneration utilizes type automobile brake sheet and preparation method thereof | |
| CN103600310A (en) | Steel ball grinding wheel formula | |
| CN113354329A (en) | Concrete synergist and preparation method and application thereof | |
| CN111218082A (en) | Carbon-based composite anti-aging modifier suitable for asphalt and preparation method thereof | |
| CN103613346A (en) | Full steel slag aggregate cement concrete | |
| KR100892884B1 (en) | The polymer concrete composition containing atomizing steel slag and the manufacturing method thereof | |
| CN105603152A (en) | Alloy cast steel purifying agent and preparation process thereof | |
| CN108585807B (en) | High-strength wear-resistant castable for middle and rear sections of blast furnace granulated slag punching groove | |
| CN101586594A (en) | A kind of new rubber riding wheel and preparation process thereof | |
| CN110746668A (en) | Energy-saving rubber composite material with low rolling resistance and preparation method thereof | |
| CN110818976A (en) | Energy-saving wear-resistant rubber composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20200614 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |