CN105778528B - A kind of preparation method of response type asphalt modifier, modified pitch and asphalt - Google Patents
A kind of preparation method of response type asphalt modifier, modified pitch and asphalt Download PDFInfo
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- CN105778528B CN105778528B CN201410819665.5A CN201410819665A CN105778528B CN 105778528 B CN105778528 B CN 105778528B CN 201410819665 A CN201410819665 A CN 201410819665A CN 105778528 B CN105778528 B CN 105778528B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The invention discloses a kind of response type asphalt modifiers, including component A and component B, the component A is mainly made of raw material from the following weight: 20-40 parts of coumarone indene resin, 20-40 parts of rosin resin, 30-60 parts of flexible unsaturated polyester (UP), 1-5 parts of low temperature modification agent；The component B is mainly made of raw material from the following weight: 10-30 parts of dicetyl peroxydicarbonate ethylhexyl, 10-30 parts of dibenzoyl peroxides, 10-30 parts of azodiisobutyronitriles, 15-30 parts of glycerine.Response type asphalt modifier of the invention avoids the problems such as ageing of asphalt caused by conventional modifying agent and energy consumption are big, dissolution swelling is undesirable, while effectively improving impact resistance, anti-cracking ability, the abrasion resistance on road surface.Also provided is a kind of preparation methods of response type modified pitch and asphalt prepared by response type asphalt modifier.
Description
Technical field
The present invention relates to road asphalt technical fields, and in particular to a kind of response type asphalt modifier and the modified drip of response type
Green preparation method.
Background technique
With the national economy high speed hair people bring volume of traffic increase rapidly, vehicle enlargement, many bituminous pavements are
It using satisfactory heavy-duty road asphalt or Imported Asphalt, still cannot meet the needs, track, cracking, brittleness pit slot
Etc. diseases seriously affect the service life of bituminous pavement.
With scientific and technological continuous development, modified pitch improves the pavement performance of pitch comprehensively, occurs some outstanding
Asphalt additive such as SBS and other asphalt additives.
But either occur between other modified-high polymer agent and pitch is all physical change to either SBS, is existed
Partial adsorbates, especially SBS belong to non-polar compound, and viscosity is big, easily concentrate on top, and pitch then sinks to lower part, even if
Stabilizer has been used, but the isolation between two-phase also easily occurs, has separated pitch with modifying agent, very big affects
The performance of modified pitch.
Dissolution of the SBS in pitch simultaneously is needed by being swollen, levigate, then develops three phases, need colloid mill anti-
Grinding 3-6 times needs 170-180 DEG C of ability swell dissolution because the fusing point of SBS is higher, is also very big from energy consumption and on the time
Consumption, and matrix pitch at high temperature easily occur aging, its performance can also be impacted.
Summary of the invention
The purpose of the present invention is intended to overcome above-mentioned the deficiencies in the prior art, has invented a kind of response type asphalt modification
Agent.In the modifying agent contain amount of activated functional group, by with a small amount of active function groups remaining in pitch, pass through certain item
Part is activated, and is chemically reacted with the functional group of modifying agent, is achieved the purpose that copolymerized grafting.It is both to contain in the modifying agent
Flexible long-chain can be effectively improved the cryogenic property of modified pitch, by the copolymerization with matrix pitch, form network copolymer,
Improve the shock resistance of modified pitch, the performances such as abrasion performance.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of response type asphalt modification is provided
Agent, including component A and component B；The component A is mainly made of raw material from the following weight: 20-40 parts of coumarone indene resin；Pine
20-40 parts of botany bar gum；Flexible unsaturated polyester (UP) 30-60 parts；1-5 parts of low temperature modification agent；The component B is mainly by following weight
The raw material of part is made: dicetyl peroxydicarbonate ethylhexyl, and 10-30 parts；Dibenzoyl peroxide, 10-30 parts；Two isobutyl of azo
Nitrile, 10-30 parts 15-30 parts of glycerine.
Further, the flexible unsaturated polyester (UP) is flax oil type unsaturated polyester (UP), two allyl of the third dioxane of trihydroxy methyl
Base ether modified unsaturated polyester and dicyclic pentylene modified unsaturated polyester (UP).
Further, the low temperature modification agent is low molecular weight polyethylene, low-molecular-weight polypropylene and aliphatic hydrocarbon resin.
Another purpose of the invention is to provide a kind of preparation method of response type modified pitch, includes the following steps:
(1) it will be heated in coumarone indene resin, rosin resin and flexible unsaturated polyester (UP) accurate measurement investment reaction kettle
140-150 DEG C, 15min is stirred, low temperature modification agent is then added, continued to stir 15min, be cooled to 50 DEG C, be granulated up to group
Divide A；
(2) glycerine is put into reaction kettle and opens agitating device, and be separately added into dicetyl peroxydicarbonate ethylhexyl,
Dibenzoyl peroxide, azodiisobutyronitrile stir 15min, and temperature control is at 20-40 DEG C to get component B；
(3) the component A for the response type asphalt modifier for obtaining the step (1) and matrix pitch are mixed at 130-140 DEG C
Merge stirring 15-20min, the component B for the response type asphalt modifier that the step (2) obtains then is added, at 130-140 DEG C
Uniform stirring 10-20min to get arrive response type modified pitch.
Further, it is 5-20% that the component A of the response type asphalt modifier, which accounts for the percentage of asphalt weight,；Institute
The component B for stating response type asphalt modifier accounts for the percentage 1-5% of asphalt weight.
Further, the matrix pitch is bi tumenf orr oad.
The beneficial effects of the present invention are: the response type modifying agent has lower fusing point, it can be in lower temperature before reaction
Under be dissolved in matrix pitch, chemically reacted after reaction with matrix pitch, in modified pitch formed partial mesh copolymerization
Object, can be effectively improved the isolation situation because of modifying agent and matrix pitch, and response type modified pitch can effectively improve the anti-impact on road surface
Ability, anti-cracking ability, abrasion resistance are hit, the endurance quality and anti-rut behavior on road surface is enhanced, improves running speed,
Pavement preservation is reduced.
Compared with prior art, the invention has the following advantages that
1) preparation temperature of reaction modifying pitch is low, it is only necessary to and 130-140 DEG C, and prepare the reaction temperature of SBS modified pitch
Degree needs 170-180 DEG C, greatly reduces energy consumption；
2) normal agitation is only needed in the preparation process of reaction modifying pitch, does not need the high speed grindings such as colloid mill
Shearing equipment saves equipment investment；
3) preparation of reaction modifying pitch is short compared with the time required to modified asphalt；
4) chemical reaction is formed between response type modifying agent and matrix pitch, by chemical graft, forms copolymer networks,
Avoid segregation phenomenon caused by due to compatibility is bad.
5) equipment investment is few, and the reaction time is short, is more suitable for Technology of Site Manufacturing.
Specific embodiment
The present invention provides a kind of response type asphalt modifier, including component A and component B；The component A is mainly by following heavy
The raw material of amount part is made: 20-40 parts of coumarone indene resin；20-40 parts of rosin resin；Flexible unsaturated polyester (UP) 30-60 parts；It is low
Warm modifying agent 1-5 parts；The component B is mainly made of raw material from the following weight: dicetyl peroxydicarbonate ethylhexyl, 10-
30 parts；Dibenzoyl peroxide, 10-30 parts；Azodiisobutyronitrile, 10-30 parts 15-30 parts of glycerine.
Flexible unsaturated polyester (UP) is flax oil type unsaturated polyester (UP), the modified unsaturation of trihydroxy methyl the third dioxane diallyl ether
Polyester and dicyclic pentylene modified unsaturated polyester (UP).
Low temperature modification agent is low molecular weight polyethylene, low-molecular-weight polypropylene and aliphatic hydrocarbon resin.
The present invention provides a kind of preparation method of response type modified pitch, includes the following steps:
(1) it will be heated in coumarone indene resin, rosin resin and flexible unsaturated polyester (UP) accurate measurement investment reaction kettle
140-150 DEG C, 15min is stirred, low temperature modification agent is then added, continued to stir 15min, be cooled to 50 DEG C, be granulated up to group
Divide A；
(2) glycerine is put into reaction kettle and opens agitating device, and be separately added into dicetyl peroxydicarbonate ethylhexyl,
Dibenzoyl peroxide, azodiisobutyronitrile stir 15min, and temperature control is at 20-40 DEG C to get component B；
(3) the component A for the response type asphalt modifier for obtaining the step (1) and matrix pitch are mixed at 130-140 DEG C
Merge stirring 15-20min, the component B for the response type asphalt modifier that the step (2) obtains then is added, at 130-140 DEG C
Uniform stirring 10-20min to get arrive response type modified pitch.
The percentage that the component A of response type asphalt modifier accounts for asphalt weight is 5-20%；The response type pitch changes
The component B of property agent accounts for the percentage 1-5% of asphalt weight.
Matrix pitch is bi tumenf orr oad.
In the examples below, the preparation method of the warm-mixed asphalt modifying agent asphalt:
(1) it will gather materials and be heated to 165-175 DEG C, be put into malaxation device, miberal powder is added in mix 90s；
(2) it will warm up 150 DEG C -170 DEG C of response type modified pitch and be sprayed into malaxation device, mix 90s, mix temperature is protected
It holds at 165-175 DEG C to get response type modified asphalt mixture.
Following specific embodiments of the present invention and comparative example by providing understand the present invention, but it in which will be further elaborated
Be not limitation of the invention.
In an embodiment of the present invention, asphalt quality requires the asphalt highway construction technology rule for meeting Ministry of Communications's promulgation
Technical requirements of the model to road asphalt.Softening point test, ductility test, penetration test and the isolation test of pitch, pitch are mixed
Close the Marshall of material, the test of Marshall residual stability, freeze thawing split it is strong than testing, track dynamic stability test and low temperature girder it is curved
The testing methods such as song test are all made of " highway engineering pitch and Asphalt Mixture Experiment regulation " (JTG E20-2011) institute
Defined standard.
Embodiment 1:
The preparation of response type modified pitch is (to prepare the response type modified pitch component A of 100kg and the response type of 100kg
Modified pitch B component, one ton of response type modified pitch are standard example):
(1) by 40kg coumarone indene resin, 20kg rosin resin, 35kg flax oil type unsaturated polyester (UP) is separately heated to 140
DEG C, by accurate measurement investment reaction kettle, maintain stirring 15 minutes.5kg low molecular weight polyethylene is added, maintains 15 points of stirring
Clock.50 DEG C are cooled to hereinafter, being granulated spare；Wherein, the speed of above-mentioned maintenance stirring are as follows: 75 ± 5 revs/min of rotation, revolution 45
± 5 revs/min；Whipping temp: temperature maintains 140-150 DEG C when material stirring temperature.
(2) 30kg glycerine is put into reaction kettle, puts into the dicetyl peroxydicarbonate diethyl of 20kg under agitation
Ester, the dibenzoyl peroxide of 20kg, the azodiisobutyronitrile of 30kg maintain stirring 15 minutes；Wherein, above-mentioned maintenance stirring
Speed are as follows: 75 ± 5 revs/min of rotation, revolve 45 ± 5 revs/min；Whipping temp: temperature maintains 40 when material stirring temperature
DEG C hereinafter, if necessary, cold conduction oil cooling can be led to.
(3) matrix pitch is heated to 130 DEG C, precise 940kg matrix pitch and 50kg response type modifier A group
Part, it puts into stirred tank, maintains stirring 15 minutes；Then 10kg response type modifying agent B component is put into stirred tank, maintains to stir
It mixes 10 minutes；Wherein, the speed of above-mentioned maintenance stirring are as follows: 75 ± 5 revs/min of rotation, revolve 45 ± 5 revs/min；Stirring temperature
Degree: temperature maintains 130 DEG C when material stirring temperature.
The preparation method of response type modified asphalt mixture:
(1) 950kg (in addition to miberal powder) that gathers materials of AC-13 gradation is heated to 175 DEG C, is put into malaxation device, mix 90s,
Miberal powder 50kg is added；
(2) it will warm up 150 DEG C of response type modified pitch 50kg and be sprayed into malaxation device, mix 90s, mix temperature is kept
At 165 DEG C to get response type modified asphalt mixture.
The particular technique index of gained response type modified pitch and asphalt is as shown in table 1, table 2.
Embodiment 2:
The preparation of response type modified pitch is (to prepare the response type modified pitch component A of 100kg and the response type of 100kg
Modified pitch B component, one ton of response type modified pitch are standard example):
(1) by 20kg coumarone indene resin, 40kg rosin resin, the dicyclic pentylene modified unsaturated polyester (UP) of 39kg heats respectively
To 140 DEG C, by accurate measurement investment reaction kettle, stirring 15 minutes is maintained.1kg aliphatic hydrocarbon resin is added, maintains 15 points of stirring
Clock.50 DEG C are cooled to hereinafter, being granulated spare；Wherein, the speed of above-mentioned maintenance stirring are as follows: 75 ± 5 revs/min of rotation, revolution 45
± 5 revs/min；Whipping temp: temperature maintains 140-150 DEG C when material stirring temperature.
(2) 15kg glycerine is put into reaction kettle, puts into the dicetyl peroxydicarbonate diethyl of 30kg under agitation
Ester, the dibenzoyl peroxide of 30kg, the azodiisobutyronitrile of 25kg maintain stirring 15 minutes；Wherein, above-mentioned maintenance stirring
Speed are as follows: 75 ± 5 revs/min of rotation, revolve 45 ± 5 revs/min；Whipping temp: temperature maintains 40 when material stirring temperature
DEG C hereinafter, if necessary, cold conduction oil cooling can be led to.
(3) matrix pitch is heated to 140 DEG C first, precise 750kg matrix pitch and 200kg response type modifying agent
Component A is put into stirred tank, maintains stirring 15 minutes；After 15 minutes, 50kg response type modifying agent B component is put into stirred tank
In, maintain stirring 20 minutes；Wherein, the speed of stirring is maintained are as follows: 75 ± 5 revs/min of rotation, revolve 45 ± 5 revs/min；It stirs
Mix temperature: temperature maintains 140 DEG C when material stirring temperature.
The preparation method of response type modified asphalt mixture:
(1) 950kg (in addition to miberal powder) that gathers materials of AC-13 gradation is heated to 175 DEG C, is put into malaxation device, mix 90s,
Miberal powder 50kg is added；
(2) it will warm up 150 DEG C of response type modified pitch 50kg and be sprayed into malaxation device, mix 90s, mix temperature is kept
At 165 DEG C to get response type modified asphalt mixture.
The particular technique index of gained response type modified pitch and asphalt is as shown in table 1, table 2.
Embodiment 3:
The preparation of response type modified pitch is (to prepare the response type modified pitch component A of 100kg and the response type of 100kg
Modified pitch B component, one ton of response type modified pitch are standard example):
(1) by 25kg coumarone indene resin, 12kg rosin resin, the modified insatiable hunger of 60kg trihydroxy methyl the third dioxane diallyl ether
140 DEG C are separately heated to polyester, by accurate measurement investment reaction kettle, maintains stirring 15 minutes.It is poly- that 3kg low molecular weight is added
Propylene maintains stirring 15 minutes.50 DEG C are cooled to hereinafter, being granulated spare；Wherein, the speed of above-mentioned maintenance stirring are as follows: rotation 75
It ± 5 revs/min, revolves 45 ± 5 revs/min；Whipping temp: temperature maintains 145 DEG C when material stirring temperature.
(2) 30kg glycerine is put into reaction kettle, puts into the dicetyl peroxydicarbonate diethyl of 30kg under agitation
Ester, the dibenzoyl peroxide of 20kg, the azodiisobutyronitrile of 20kg maintain stirring 15 minutes；Wherein, above-mentioned maintenance stirring
Speed are as follows: 75 ± 5 revs/min of rotation, revolve 45 ± 5 revs/min；Whipping temp: temperature maintains 40 when material stirring temperature
DEG C hereinafter, if necessary, cold conduction oil cooling can be led to.
(3) matrix pitch is heated to 135 DEG C first, precise 870kg matrix pitch and 100kg response type modifying agent
Component A is put into stirred tank, maintains stirring 15 minutes；Then, the response type modifying agent B component of 30kg room temperature is put into stirring
In kettle, stirring 15 minutes is maintained；Wherein, the speed of above-mentioned maintenance stirring are as follows: 75 ± 5 revs/min of rotation, revolve 45 ± 5 revs/min
Clock；Whipping temp: temperature maintains 135 DEG C when material stirring temperature.
The preparation method of response type modified asphalt mixture:
(1) 950kg (in addition to miberal powder) that gathers materials of AC-13 gradation is heated to 175 DEG C, is put into malaxation device, mix 90s,
Miberal powder 50kg is added；
(2) it will warm up 150 DEG C of response type modified pitch 50kg and be sprayed into malaxation device, mix 90s, mix temperature is kept
At 165 DEG C to get response type modified asphalt mixture.
The particular technique index of gained response type modified pitch and asphalt is as shown in table 1, table 2.
Comparative example 1:
The preparation (being standard example by standard example of one ton of preparation of SBS modified pitch) of SBS modified pitch:
(1) matrix pitch is heated to 150 DEG C first, precise 950kg matrix pitch and 50kgSBS, investment stir
In kettle, stirring 30 minutes, revolving speed 500rpm are maintained；
After (2) 25 minutes, the mixture of above-mentioned matrix pitch and SBS is squeezed into grinding pot, high speed grinding circulation turns
Fast 1500rpm is maintained 30 minutes；Whipping temp: temperature maintains 175 DEG C when material stirring temperature.
The preparation method of SBS modified asphalt mixture:
(1) 950kg (in addition to miberal powder) that gathers materials of AC-13 gradation is heated to 185 DEG C, is put into malaxation device, mix 90s,
Miberal powder 50kg is added；
(2) it will warm up 180 DEG C of SBS modified pitch 50kg and be sprayed into malaxation device, mix 90s, mix temperature is maintained at
180 DEG C to get SBS modified asphalt mixture.
The particular technique index of gained SBS modified pitch and asphalt is as shown in table 1, table 2.
According to " JTG E20-2011 highway engineering pitch and Asphalt Mixture Experiment regulation " to matrix pitch, three realities
The response type modified pitch of example and the SBS modified pitch difference f of comparison example 1 carry out cementitious matter test, and specific data are shown in Table 1:
Table 1 the result shows that, although response type modified pitch temperature and shear strength in synthesis process is modified lower than SBS
Pitch, but the indices performance detected will a little higher than SBS modified pitch.And the SBS that stabilizer is not added is modified
The isolation of pitch is than more serious, and response type modified pitch becomes graft copolymer by chemical bond and pitch, does not need
Segregation phenomenon is also not present in stabilizer.
According to " JTG E20-2011 highway engineering pitch and Asphalt Mixture Experiment regulation " to matrix pitch, three realities
The response type modified pitch of example and the modified pitch of comparison example 1 carry out Asphalt Mixture Experiment test respectively, and specific data are shown in
Table 2:
Table 2 statistics indicate that, response type modified pitch is substantially close with the mixture performance of SBS modified pitch, meets
To polymer modified asphalt mixture performance in " JTG E20-2011 highway engineering pitch and Asphalt Mixture Experiment regulation "
It is required that.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification is applied directly or indirectly in other relevant technical fields,
Similarly it is included within the scope of the present invention.
Claims (7)
1. a kind of response type asphalt modifier, which is characterized in that including component A and component B；The component A is mainly by following heavy
The raw material of amount part is made:
20-40 parts of coumarone indene resin；
20-40 parts of rosin resin；
Flexible unsaturated polyester (UP) 30-60 parts；
1-5 parts of low temperature modification agent；
The component B is mainly made of raw material from the following weight:
2. response type asphalt modifier according to claim 1, which is characterized in that the flexibility unsaturated polyester (UP) is flax
Oil type unsaturated polyester (UP), trihydroxy methyl the third dioxane diallyl ether modified unsaturated polyester and dicyclic pentylene modified unsaturation are poly-
One of ester is a variety of.
3. response type asphalt modifier according to claim 1, which is characterized in that the low temperature modification agent is low molecular weight
The one or two of polyethylene, low-molecular-weight polypropylene.
4. a kind of system of the response type modified pitch of response type asphalt modifier preparation as claimed in any one of claims 1-3
Preparation Method, which comprises the steps of:
(1) 140-150 will be heated in coumarone indene resin, rosin resin and flexible unsaturated polyester (UP) accurate measurement investment reaction kettle
DEG C, 15min is stirred, low temperature modification agent is then added, continues to stir 15min, is cooled to 50 DEG C, be granulated up to component A；
(2) glycerine is put into reaction kettle and opens agitating device, and be separately added into dicetyl peroxydicarbonate ethylhexyl, peroxide
Change dibenzoyl, azodiisobutyronitrile stirs 15min, and temperature control is at 20-40 DEG C to get component B；
(3) the component A for the response type asphalt modifier that the step (1) obtains is mixed simultaneously with matrix pitch at 130-140 DEG C
15-20min is stirred, the component B for the response type asphalt modifier that the step (2) obtains then is added, uniformly at 130-140 DEG C
10-20min is stirred to get response type modified pitch is arrived.
5. the preparation method of response type modified pitch according to claim 4, which is characterized in that the response type pitch changes
Property agent component A account for matrix pitch weight percentage be 5-20%；The component B of the response type asphalt modifier accounts for matrix drip
The percentage 1-5% of green weight.
6. the preparation method of response type modified pitch according to claim 4, which is characterized in that the matrix pitch is road
Road asphalt.
7. a kind of preparation method of the asphalt of response type modified pitch as claimed in claim 4, which is characterized in that packet
Include following steps:
(1) it will gather materials and be heated to 165-175 DEG C, be put into malaxation device, miberal powder is added in mix 90s；
(2) 150 DEG C of -170 DEG C of response type modified pitch be will warm up and be sprayed into malaxation device, mix 90s, mix temperature is maintained at
165-175 DEG C to get response type modified asphalt mixture.
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| CN201410819665.5A CN105778528B (en) | 2014-12-25 | 2014-12-25 | A kind of preparation method of response type asphalt modifier, modified pitch and asphalt |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3349051A (en) * | 1964-01-09 | 1967-10-24 | Monsanto Co | Polyester resin modified bituminous compositions |
| SU945167A1 (en) * | 1980-09-18 | 1982-07-23 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Полимерных Строительных Материалов | Process for producing bitumen |
| EP2161306A1 (en) * | 2008-09-09 | 2010-03-10 | Cognis IP Management GmbH | Use of polyesters as bituminous binders in road construction |
| CN102796387A (en) * | 2012-09-03 | 2012-11-28 | 黄卫 | Epoxy glue powder asphalt material and preparation method thereof |
-
2014
- 2014-12-25 CN CN201410819665.5A patent/CN105778528B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3349051A (en) * | 1964-01-09 | 1967-10-24 | Monsanto Co | Polyester resin modified bituminous compositions |
| SU945167A1 (en) * | 1980-09-18 | 1982-07-23 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Полимерных Строительных Материалов | Process for producing bitumen |
| EP2161306A1 (en) * | 2008-09-09 | 2010-03-10 | Cognis IP Management GmbH | Use of polyesters as bituminous binders in road construction |
| CN102796387A (en) * | 2012-09-03 | 2012-11-28 | 黄卫 | Epoxy glue powder asphalt material and preparation method thereof |
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Address after: 201209 No. 158, Chuansha Road, Shanghai, Pudong New Area Patentee after: SHANGHAI KNP MATERIAL TECHNOLOGY Co.,Ltd. Patentee after: SHENZHEN OCEANPOWER INDUSTRY Co.,Ltd. Patentee after: SHENZHEN OCEANPOWER NEW MATERIAL TECHNOLOGY CO.,LTD. Address before: 201209 No. 158, Chuansha Road, Shanghai, Pudong New Area Patentee before: SHANGHAI KNP MATERIAL TECHNOLOGY Co.,Ltd. Patentee before: SHENZHEN OCEANPOWER INDUSTRY Co.,Ltd. Patentee before: SHENZHEN OCEAN POWER MATERIAL TECHNOLOGY Co.,Ltd. |
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Denomination of invention: A preparation method of reactive asphalt modifier, modified asphalt and asphalt mixture Effective date of registration: 20221207 Granted publication date: 20190917 Pledgee: China Construction Bank Co.,Ltd. Shenzhen Branch Pledgor: SHANGHAI KNP MATERIAL TECHNOLOGY Co.,Ltd.|SHENZHEN OCEANPOWER INDUSTRY Co.,Ltd.|SHENZHEN OCEANPOWER NEW MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2022980025510 |