CN110499036A - 一种纳米改性沥青及其制备方法 - Google Patents
一种纳米改性沥青及其制备方法 Download PDFInfo
- Publication number
- CN110499036A CN110499036A CN201910947113.5A CN201910947113A CN110499036A CN 110499036 A CN110499036 A CN 110499036A CN 201910947113 A CN201910947113 A CN 201910947113A CN 110499036 A CN110499036 A CN 110499036A
- Authority
- CN
- China
- Prior art keywords
- nano
- sbs
- nano modified
- alphalt
- modified alphalt
- 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.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000011159 matrix material Substances 0.000 claims abstract description 35
- 239000010426 asphalt Substances 0.000 claims abstract description 34
- 239000002086 nanomaterial Substances 0.000 claims abstract description 24
- 239000004094 surface-active agent Substances 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 22
- 238000010008 shearing Methods 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 17
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 13
- 229910052717 sulfur Inorganic materials 0.000 claims description 12
- 239000011593 sulfur Substances 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 239000005864 Sulphur Substances 0.000 claims description 5
- 229920005862 polyol Polymers 0.000 claims description 5
- 150000003077 polyols Chemical class 0.000 claims description 5
- 239000002736 nonionic surfactant Substances 0.000 claims description 4
- -1 sucrose ester Chemical class 0.000 claims description 4
- 239000000084 colloidal system Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229930006000 Sucrose Natural products 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 239000005720 sucrose Substances 0.000 claims description 2
- 239000003208 petroleum Substances 0.000 claims 1
- 239000003381 stabilizer Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 26
- 230000015556 catabolic process Effects 0.000 abstract description 15
- 238000006731 degradation reaction Methods 0.000 abstract description 15
- 230000035515 penetration Effects 0.000 abstract description 5
- 230000003712 anti-aging effect Effects 0.000 abstract description 3
- 239000003431 cross linking reagent Substances 0.000 description 16
- 239000007789 gas Substances 0.000 description 8
- 238000010792 warming Methods 0.000 description 8
- HVUMOYIDDBPOLL-XGKPLOKHSA-N [2-[(2r,3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] octadecanoate Chemical group CCCCCCCCCCCCCCCCCC(=O)OCC(O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XGKPLOKHSA-N 0.000 description 7
- IJCWFDPJFXGQBN-BIFNRIDTSA-N sorbitan tristearate Chemical group CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)[C@H]1OC[C@@H](O)[C@@H]1OC(=O)CCCCCCCCCCCCCCCCC IJCWFDPJFXGQBN-BIFNRIDTSA-N 0.000 description 7
- 241000209094 Oryza Species 0.000 description 6
- 235000007164 Oryza sativa Nutrition 0.000 description 6
- 235000009566 rice Nutrition 0.000 description 6
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical group CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 235000011078 sorbitan tristearate Nutrition 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000600 sorbitol Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000047703 Nonion Species 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910947113.5A CN110499036B (zh) | 2019-09-29 | 2019-09-29 | 一种纳米改性沥青及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910947113.5A CN110499036B (zh) | 2019-09-29 | 2019-09-29 | 一种纳米改性沥青及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110499036A true CN110499036A (zh) | 2019-11-26 |
CN110499036B CN110499036B (zh) | 2022-02-01 |
Family
ID=68593170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910947113.5A Active CN110499036B (zh) | 2019-09-29 | 2019-09-29 | 一种纳米改性沥青及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110499036B (zh) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110982287A (zh) * | 2019-12-16 | 2020-04-10 | 重庆交通大学 | 一种纳米改性沥青及其制备方法 |
CN113024160A (zh) * | 2021-01-19 | 2021-06-25 | 张延年 | 一种控温高性能固废沥青混凝土 |
CN113352522A (zh) * | 2021-05-26 | 2021-09-07 | 厦门台盾防水科技有限公司 | 一种高聚物改性沥青自粘卷材的生产方法 |
CN113667313A (zh) * | 2021-08-17 | 2021-11-19 | 浙江交通资源投资有限公司沥青科技分公司 | 一种分子密实型养护专用沥青及其制备方法 |
CN113683339A (zh) * | 2021-09-03 | 2021-11-23 | 广西路冠科技投资发展有限责任公司 | 一种复配天然岩改性沥青混合料添加剂 |
CN115044215A (zh) * | 2022-06-23 | 2022-09-13 | 王秀庆 | 一种纳米改性沥青及其制备方法 |
CN115073060A (zh) * | 2022-05-10 | 2022-09-20 | 广东省水利水电第三工程局有限公司 | 一种水工沥青混凝土、制备方法及其应用 |
CN115584139A (zh) * | 2022-12-12 | 2023-01-10 | 佛山路桥工程技术咨询有限公司 | 一种耐高温阻燃沥青及其制备方法 |
CN115710432A (zh) * | 2022-12-15 | 2023-02-24 | 中路交科科技股份有限公司 | 一种疏水耐久型高黏改性沥青及其制备方法 |
CN115960470A (zh) * | 2022-12-30 | 2023-04-14 | 江苏中亿通道路新材料有限公司 | 一种纤维憎水型高黏改性沥青及其制备方法 |
CN116836558A (zh) * | 2023-06-27 | 2023-10-03 | 长沙理工大学 | 一种排水性沥青路面专用高黏度改性沥青及其制备方法 |
CN119019859A (zh) * | 2024-10-23 | 2024-11-26 | 内蒙古工业大学 | 一种具有尾气降解功能的氮掺杂二氧化钛改性沥青及其制备方法及应用 |
CN119708870A (zh) * | 2025-01-03 | 2025-03-28 | 山东道兴公路材料有限公司 | 基于纳米复合材料的高性能改性沥青 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102010610A (zh) * | 2011-01-06 | 2011-04-13 | 青岛安邦路法沥青有限公司 | Sbs改性沥青及其制备方法 |
CN108530918A (zh) * | 2018-03-30 | 2018-09-14 | 佛山市路邦沥青有限公司 | 一种高效抗老化的改性沥青 |
CN109486219A (zh) * | 2018-10-30 | 2019-03-19 | 湖北津泰环保科技有限公司 | 一种有机包覆纳米二氧化钛接枝sbs改性沥青及其制备方法 |
CN109504108A (zh) * | 2018-11-21 | 2019-03-22 | 魏林涛 | 一种耐候改性沥青 |
-
2019
- 2019-09-29 CN CN201910947113.5A patent/CN110499036B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102010610A (zh) * | 2011-01-06 | 2011-04-13 | 青岛安邦路法沥青有限公司 | Sbs改性沥青及其制备方法 |
CN108530918A (zh) * | 2018-03-30 | 2018-09-14 | 佛山市路邦沥青有限公司 | 一种高效抗老化的改性沥青 |
CN109486219A (zh) * | 2018-10-30 | 2019-03-19 | 湖北津泰环保科技有限公司 | 一种有机包覆纳米二氧化钛接枝sbs改性沥青及其制备方法 |
CN109504108A (zh) * | 2018-11-21 | 2019-03-22 | 魏林涛 | 一种耐候改性沥青 |
Non-Patent Citations (4)
Title |
---|
余剑英等: "《沥青材料老化与防老化(第1版)》", 30 June 2013, 武汉理工大学出版社 * |
宋关玲等: "《纳米二氧化钛及其毒性效应研究(第1版)》", 31 December 2017, 科学技术文献出版社 * |
张金升等: "《交通新材料(第1版)》", 31 January 2014, 哈尔滨工业大学出版社 * |
李雪峰: "纳米ZnO/SBS改性沥青性能及共混机理研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110982287A (zh) * | 2019-12-16 | 2020-04-10 | 重庆交通大学 | 一种纳米改性沥青及其制备方法 |
CN113024160A (zh) * | 2021-01-19 | 2021-06-25 | 张延年 | 一种控温高性能固废沥青混凝土 |
CN113352522B (zh) * | 2021-05-26 | 2023-06-09 | 厦门台盾防水科技有限公司 | 一种高聚物改性沥青自粘卷材的生产方法 |
CN113352522A (zh) * | 2021-05-26 | 2021-09-07 | 厦门台盾防水科技有限公司 | 一种高聚物改性沥青自粘卷材的生产方法 |
CN113667313A (zh) * | 2021-08-17 | 2021-11-19 | 浙江交通资源投资有限公司沥青科技分公司 | 一种分子密实型养护专用沥青及其制备方法 |
CN113683339A (zh) * | 2021-09-03 | 2021-11-23 | 广西路冠科技投资发展有限责任公司 | 一种复配天然岩改性沥青混合料添加剂 |
CN115073060A (zh) * | 2022-05-10 | 2022-09-20 | 广东省水利水电第三工程局有限公司 | 一种水工沥青混凝土、制备方法及其应用 |
CN115044215A (zh) * | 2022-06-23 | 2022-09-13 | 王秀庆 | 一种纳米改性沥青及其制备方法 |
CN115584139A (zh) * | 2022-12-12 | 2023-01-10 | 佛山路桥工程技术咨询有限公司 | 一种耐高温阻燃沥青及其制备方法 |
CN115710432A (zh) * | 2022-12-15 | 2023-02-24 | 中路交科科技股份有限公司 | 一种疏水耐久型高黏改性沥青及其制备方法 |
CN115710432B (zh) * | 2022-12-15 | 2024-04-19 | 中路交科科技股份有限公司 | 一种疏水耐久型高黏改性沥青及其制备方法 |
CN115960470A (zh) * | 2022-12-30 | 2023-04-14 | 江苏中亿通道路新材料有限公司 | 一种纤维憎水型高黏改性沥青及其制备方法 |
CN116836558A (zh) * | 2023-06-27 | 2023-10-03 | 长沙理工大学 | 一种排水性沥青路面专用高黏度改性沥青及其制备方法 |
CN119019859A (zh) * | 2024-10-23 | 2024-11-26 | 内蒙古工业大学 | 一种具有尾气降解功能的氮掺杂二氧化钛改性沥青及其制备方法及应用 |
CN119019859B (zh) * | 2024-10-23 | 2025-01-24 | 内蒙古工业大学 | 一种具有尾气降解功能的氮掺杂二氧化钛改性沥青及其制备方法及应用 |
CN119708870A (zh) * | 2025-01-03 | 2025-03-28 | 山东道兴公路材料有限公司 | 基于纳米复合材料的高性能改性沥青 |
Also Published As
Publication number | Publication date |
---|---|
CN110499036B (zh) | 2022-02-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110499036A (zh) | 一种纳米改性沥青及其制备方法 | |
CN101445338B (zh) | 一种温拌抗滑、降噪沥青路面材料的制备方法 | |
KR101545882B1 (ko) | 중저온화 아스팔트 콘크리트 첨가제를 이용한 아스팔트 콘크리트 제조방법 | |
CN108359255A (zh) | 一种改性沥青及具有该沥青的高强度透水沥青混凝土 | |
CN101265053A (zh) | 富沥青断级配橡胶沥青混合料 | |
EP4559979A1 (en) | Graphene modified asphalt and preparation method therefor | |
CN109181323A (zh) | 一种防水卷材用耐老化改性沥青及其制备方法 | |
CN109897393A (zh) | 一种sbs改性沥青及其制备方法 | |
CN102040847A (zh) | 一种脱硫胶粉改性沥青及其制备方法 | |
CN109369063B (zh) | 一种复合改性抗车辙剂及其制备方法 | |
CN113105747B (zh) | 一种适用于高寒地区的耐低温改性沥青及其制备方法 | |
CN107974091A (zh) | 一种降噪排水路面用高粘胶粉改性沥青材料及其制备方法 | |
CN117551357A (zh) | 一种双组份聚氨酯温拌复合改性沥青、沥青混合料及其制备方法 | |
CN1257941C (zh) | 用微波辐照废旧橡胶粉改性公路沥青的组合物及其制备方法 | |
CN112143039B (zh) | 一种直投式m树脂基改性沥青稳定剂及制备方法和应用 | |
CN104356660B (zh) | 一种耐紫外老化sbr改性沥青及其制备方法 | |
CN117720822B (zh) | 一种改性温拌橡胶沥青及制备方法 | |
CN112321214A (zh) | 秸秆纤维用于再生沥青混凝土路面 | |
CN110079105B (zh) | 一种海泡石负载溶解性胶粉改性沥青及其制备方法 | |
CN115231857B (zh) | 一种分层改性提升沥青路面材料老化性能的方法 | |
CN114605844B (zh) | 一种抗紫外光老化脱硫胶粉改性沥青及其制备方法 | |
CN109694587A (zh) | 一种sbr复合改性沥青及制备方法 | |
CN106118095B (zh) | 一种可再生沥青混合料及其制备方法 | |
CN1935904A (zh) | 一种用于沥青路面的组合物及其制作方法 | |
CN116462982A (zh) | 一种高粘高弹橡胶改性沥青的制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB02 | Change of applicant information | ||
CB02 | Change of applicant information |
Address after: 050011 No.36 Jianshe South Street, Qiaoxi District, Shijiazhuang City, Hebei Province Applicant after: Hebei transportation planning and Design Institute Co.,Ltd. Applicant after: Hebei Ruizhi Traffic Technology Consulting Co.,Ltd. Address before: 050011 No.36 Jianshe South Street, Shijiazhuang City, Hebei Province Applicant before: HEBEI PROVINCIAL COMMUNICATIONS PLANNING AND DESIGN INSTITUTE Applicant before: Hebei Ruizhi Traffic Technology Consulting Co.,Ltd. |
|
CB02 | Change of applicant information | ||
CB02 | Change of applicant information |
Address after: 050011 No.36 Jianshe South Street, Qiaoxi District, Shijiazhuang City, Hebei Province Applicant after: Hebei transportation planning and Design Institute Co.,Ltd. Applicant after: Hebei Traffic Planning Institute Ruizhi Traffic Technology Consulting Co., Ltd Address before: 050011 No.36 Jianshe South Street, Qiaoxi District, Shijiazhuang City, Hebei Province Applicant before: Hebei transportation planning and Design Institute Co.,Ltd. Applicant before: Hebei Ruizhi Traffic Technology Consulting Co., Ltd |
|
GR01 | Patent grant | ||
GR01 | Patent grant |