CN111763559A - 环境友好型水基柱塞冲头润滑液 - Google Patents
环境友好型水基柱塞冲头润滑液 Download PDFInfo
- Publication number
- CN111763559A CN111763559A CN202010753474.9A CN202010753474A CN111763559A CN 111763559 A CN111763559 A CN 111763559A CN 202010753474 A CN202010753474 A CN 202010753474A CN 111763559 A CN111763559 A CN 111763559A
- Authority
- CN
- China
- Prior art keywords
- friendly water
- acid
- based plunger
- punch
- weight
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/127—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids polycarboxylic
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/18—Tall oil acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/22—Acids obtained from polymerised unsaturated acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/06—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/061—Esters derived from boron
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
本发明公开了一种水基柱塞冲头润滑液,尤其涉及一种环境友好型水基柱塞冲头润滑液,本发明包括抗磨极压剂、阴离子表面活性剂、防锈剂、粘度调节剂、有色金属缓蚀剂、去离子水等原料。本发明不含矿物油、植物油、石墨、杀菌剂等成分,具有良好的高温润滑性和耐热稳定性,能准确控制金属熔融液的凝固速度,提高压铸工件的表面质量。有效减少对柱塞冲头、顶杆及活动部位的摩擦和磨损。与当前压铸加工使用的冲头油、乳化型冲头液相比,能显著降低金属压铸加工时的烟雾及油渍污染,改善加工现场的工作环境,是一种环境友好型的水基柱塞冲头润滑液。
Description
技术领域
本发明涉及一种柱塞冲头润滑液,尤其涉及一种环境友好型水基柱塞冲头润滑液。
背景技术
从上世纪八十年代开始,随着汽车、电子通讯、家用电器、重型制造业的飞速发展,金属压铸件的需求量不断扩大,对压铸件的质量也提出更高要求。在压铸过程中,压铸机柱塞冲头与金属熔融液直接接触,冲头处于高温、高压、高摩擦条件下长期工作,对金属压铸成型过程必须保证良好的冷却和润滑,才能保证金属压铸件的表面质量,减低柱塞头和输料管之间的摩擦,延长柱塞头和型腔的使用寿命。传统金属压铸柱塞冲头润滑剂普遍使用冲头油,主要成分为矿物油及耐高温的抗磨润滑剂组成,其中以耐高温性能稳定的石墨抗磨剂被广泛应用于金属压铸柱塞冲头油中。油性冲头油与温度高至数百度的金属熔融液接触时会产生燃烧,散发出大量烟雾及对人体有害的刺激性气体,含有石墨材料的冲头油更对工作环境造成严重污染。近年来市场上出现了一些乳化型水性冲压润滑剂,这类润滑剂含有大量的矿物油及油溶性的有机抗磨添加剂,同样还会出现油烟雾的污染及压铸件、柱塞头、输料管的油垢污染。
本世纪以来,国际上对环境保护的要求愈来愈严格,降低工业加工对环境的污染呼声更加强烈,开发一种不含矿物油、具有良好的高温冷却、润滑、稳定的环境友好型水基柱塞冲头润滑液就十分迫切了。
发明内容
本发明的目的在于现有技术的不足而提供一种具有贮存高稳定性、高冷却润滑性的环境友好型水基柱塞冲头润滑液。
本发明通过以下技术得以实现:
1、一种无矿物油的环境友好型水基柱塞冲头润滑液按质量百分比包括如下组分:
抗磨极压剂是一乙醇胺硼酸酯、二乙醇胺硼酸酯、三乙醇胺硼酸酯、混合醇胺硼酸酯或EO/PO嵌段共聚物。
阴离子表面活性剂是油酸、二聚酸、妥尔油酸、异构硬脂酸的一种或几种(1重量份)与一乙醇胺、二乙醇胺、三乙醇胺、一异丙醇胺、二异丙醇胺中的一种或几种(1.5-3重量份)的混合物。
防锈剂是C10~C14二元酸、三元酸、十二烯基丁二酸中的一种或几种(1重量份)与一乙醇胺、二乙醇胺、三乙醇胺、一异丙醇胺、二异丙醇胺中的一种或几种(1-2重量份)的混合物。
粘度调节剂是聚氧乙烯聚氧丙烯醚,其运动粘度(40℃)大于420mm2/s。
有色金属缓蚀剂是膦酸脂、偏硅酸钠、原硅酸钠、苯三唑、甲基苯三唑中的一种或几种。
本发明的有益效果
1、本发明不含矿物油,所含组分均溶于水,为清亮透明的均相体系,具有优异的贮存高稳定性和生物稳定性,贮存期长,不用加杀菌剂;
2、本发明产品具有良好的高温稳定性和润滑性,能高效保护柱塞冲头及压室壁,减少柱塞冲头和金属型腔的磨损;
3、本发明不含矿物油及高温易分解的添加剂,加工时烟雾小,没有刺激性气味,加工现场清洁干净,没有残留的油迹、污垢,对环境友好;
4、本发明组份合理,材料全部国产化,产品成本较低;加工余桶清洗简单方便,能降低金属精冲工艺的成本,有较好的社会经济效益。
具体实施方式
实施例1:一种环境友好型水基柱塞冲头润滑液,由以下各组份质量百分比混合组成:
抗磨极压剂是二乙醇胺硼酸酯(或一乙醇胺硼酸酯、三乙醇胺硼酸酯、混合醇胺硼酸酯、EO/PO嵌段共聚物)。
阴离子表面活性剂是油酸(或二聚酸、妥尔油酸、异构硬脂酸1重量份)与一乙醇胺、二乙醇胺、三乙醇胺、一异丙醇胺、二异丙醇胺中的一种或几种(1.5-3重量份,本例为2重量份)的混合物。
防锈剂是十二碳二元酸(或三元酸、十二烯基丁二酸中的一种或几种1重量份)与单乙醇胺、二乙醇胺、三乙醇胺、一异丙醇胺、二异丙醇胺中的一种或几种(1-2重量份,本例为1重量份)的混合物。
粘度调节剂是运动粘度为600mm2/s的聚氧乙烯聚氧丙烯醚。
耐高温润滑剂是丙二醇(或异丙醇、甘油、异构硬脂醇)。
有色金属缓蚀剂是膦酸脂(或偏硅酸钠、苯三唑、甲基苯三唑中的一种或几种)。
实施例2:一种环境友好型水基柱塞冲头润滑液,由以下各组份质量百分数混合组成:
其余均同实施例1。
实施例3:一种环境友好型水基柱塞冲头润滑液,由以下各组份质量百分数混合组成:
其余均同实施例1。
实施例4:一种环境友好型水基柱塞冲头润滑液,由以下各组份质量百分数混合组成:
其余均同实施例1。
Claims (6)
2.根据权利要求1所述的环境友好型水基柱塞冲头润滑液,其特征是:抗磨极压剂是一乙醇胺硼酸酯、二乙醇胺硼酸酯、三乙醇胺硼酸酯、混合醇胺硼酸酯或EO/PO嵌段共聚物。
3.根据权利要求1或2所述的环境友好型水基柱塞冲头润滑液,其特征是:阴离子表面活性剂是油酸、二聚酸、妥尔油酸、异构硬脂酸的一种或几种(1重量份)与一乙醇胺、二乙醇胺、三乙醇胺、一异丙醇胺、二异丙醇胺中的一种或几种(1.5-3重量份)的混合物。
4.根据权利要求1或2所述的环境友好型水基柱塞冲头润滑液,其特征是:防锈剂是C10~C14二元酸、三元酸、十二烯基丁二酸中的一种或几种(1重量份)与一乙醇胺、二乙醇胺、三乙醇胺、一异丙醇胺、二异丙醇胺中的一种或几种(1-2重量份)的混合物。
5.根据权利要求1或2所述的环境友好型水基柱塞冲头润滑液,其特征是:粘度调节剂是聚氧乙烯聚氧丙烯醚,其运动粘度(40℃)大于420mm2/s。
6.根据权利要求1或2所述的环境友好型水基柱塞冲头润滑液,其特征是:有色金属缓蚀剂是膦酸脂、偏硅酸钠、原硅酸钠、苯三唑、甲基苯三唑中的一种或几种。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010753474.9A CN111763559A (zh) | 2020-07-30 | 2020-07-30 | 环境友好型水基柱塞冲头润滑液 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010753474.9A CN111763559A (zh) | 2020-07-30 | 2020-07-30 | 环境友好型水基柱塞冲头润滑液 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111763559A true CN111763559A (zh) | 2020-10-13 |
Family
ID=72728073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010753474.9A Pending CN111763559A (zh) | 2020-07-30 | 2020-07-30 | 环境友好型水基柱塞冲头润滑液 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111763559A (zh) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6204225B1 (en) * | 1999-12-13 | 2001-03-20 | Midwest Biologicals, Inc. | Water-dispersible metal working fluid |
CN102618372A (zh) * | 2012-02-28 | 2012-08-01 | 上海尤希路化学工业有限公司 | 高性能生物降解型金属加工保护液 |
CN102796606A (zh) * | 2012-08-21 | 2012-11-28 | 东北大学 | 一种含有机硼酸酯的纯水基冷轧薄板轧制液及其制备方法 |
CN103525529A (zh) * | 2013-10-15 | 2014-01-22 | 上海尤希路化学工业有限公司 | 高性能环保型水溶性冲压油 |
CN104877749A (zh) * | 2014-02-27 | 2015-09-02 | 上海德润宝特种润滑剂有限公司 | 蠕墨铸铁加工用水基切削液及其稀释液 |
CN105567406A (zh) * | 2015-12-10 | 2016-05-11 | 长沙艾森设备维护技术有限公司 | 一种全合成轧制液及其制备方法 |
CN105670738A (zh) * | 2016-03-11 | 2016-06-15 | 东莞市纳晟润滑油科技有限公司 | 一种防锈乳化型金属切削液 |
CN106929137A (zh) * | 2017-03-24 | 2017-07-07 | 天津凯尔德威工业制剂有限公司 | 全合成切削液 |
CN107629857A (zh) * | 2017-10-09 | 2018-01-26 | 马鞍山拓锐金属表面技术有限公司 | 一种连续锻压专用环保型润滑剂 |
CN108384630A (zh) * | 2018-03-30 | 2018-08-10 | 天长市润达金属防锈助剂有限公司 | 一种使用寿命长的环保水基金属切削液 |
CN108753417A (zh) * | 2018-07-02 | 2018-11-06 | 嘉兴市国龙石油化工有限公司 | 一种多功能铝用金属加工液及其制备方法 |
-
2020
- 2020-07-30 CN CN202010753474.9A patent/CN111763559A/zh active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6204225B1 (en) * | 1999-12-13 | 2001-03-20 | Midwest Biologicals, Inc. | Water-dispersible metal working fluid |
CN102618372A (zh) * | 2012-02-28 | 2012-08-01 | 上海尤希路化学工业有限公司 | 高性能生物降解型金属加工保护液 |
CN102796606A (zh) * | 2012-08-21 | 2012-11-28 | 东北大学 | 一种含有机硼酸酯的纯水基冷轧薄板轧制液及其制备方法 |
CN103525529A (zh) * | 2013-10-15 | 2014-01-22 | 上海尤希路化学工业有限公司 | 高性能环保型水溶性冲压油 |
CN104877749A (zh) * | 2014-02-27 | 2015-09-02 | 上海德润宝特种润滑剂有限公司 | 蠕墨铸铁加工用水基切削液及其稀释液 |
CN105567406A (zh) * | 2015-12-10 | 2016-05-11 | 长沙艾森设备维护技术有限公司 | 一种全合成轧制液及其制备方法 |
CN105670738A (zh) * | 2016-03-11 | 2016-06-15 | 东莞市纳晟润滑油科技有限公司 | 一种防锈乳化型金属切削液 |
CN106929137A (zh) * | 2017-03-24 | 2017-07-07 | 天津凯尔德威工业制剂有限公司 | 全合成切削液 |
CN107629857A (zh) * | 2017-10-09 | 2018-01-26 | 马鞍山拓锐金属表面技术有限公司 | 一种连续锻压专用环保型润滑剂 |
CN108384630A (zh) * | 2018-03-30 | 2018-08-10 | 天长市润达金属防锈助剂有限公司 | 一种使用寿命长的环保水基金属切削液 |
CN108753417A (zh) * | 2018-07-02 | 2018-11-06 | 嘉兴市国龙石油化工有限公司 | 一种多功能铝用金属加工液及其制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100434573B1 (ko) | 금속재료의 냉간 소성 가공용 수계 윤활제 | |
US8728994B2 (en) | Oil type lubricant for forging, forging method and spray apparatus | |
CN1328363C (zh) | 一种无氯极压微乳切削液及其制备方法与应用 | |
CN104263476B (zh) | 生物可降解微量润滑油及其制备方法 | |
CN103361163A (zh) | 一种无腐蚀性水性切削液 | |
CN104450120A (zh) | 一种半合成金属拉丝润滑液及制备方法 | |
CN104327931A (zh) | 一种通用乳化型金属切削液 | |
CN111117757A (zh) | 一种水溶性挥发冲压液及制备方法 | |
CN103361151A (zh) | 一种润滑剂组合物及其制备方法和用该组合物配制微量润滑剂 | |
CN103725365A (zh) | 一种水基液压液组合物 | |
CN104818103B (zh) | 汽车用低碳钢件冷挤压成形润滑剂及其制备方法 | |
CN105861126A (zh) | 一种易生物降解的微乳型线切割专用液及其制备方法 | |
CN103571585B (zh) | 汽车板材构件冲压成型润滑剂 | |
US2957825A (en) | Powdered soap lubricant containing inorganic sulfur salts | |
CN103045336A (zh) | 一种微乳半合成铜拉丝液组合物 | |
CN103789071B (zh) | 一种环保型钢管扩径极压防锈乳化油及其制备方法和用途 | |
CN111763559A (zh) | 环境友好型水基柱塞冲头润滑液 | |
CN107353994A (zh) | 一种镀锌钢管全合成成型液 | |
CN113234521B (zh) | 一种不锈钢板材冲压加工用水性润滑液及其制备方法 | |
CN108456585B (zh) | 一种钢管拉拔反应油组合物 | |
CN109233955B (zh) | 一种高性能环境友好型水性冲头油及其制备方法 | |
CN113736544B (zh) | 一种环保水溶性不锈钢薄板冲压油及其制备方法 | |
CN108485777A (zh) | 一种防锈性能优异的水基金属切削液 | |
CN109401827B (zh) | 一种铝散热翅片用冲压液及其制备方法 | |
CN103695090B (zh) | 一种铝线精拉的润滑剂 |
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 | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201013 |
|
RJ01 | Rejection of invention patent application after publication |