CN112647284A - PBO fiber carding oil - Google Patents
PBO fiber carding oil Download PDFInfo
- Publication number
- CN112647284A CN112647284A CN202011501189.4A CN202011501189A CN112647284A CN 112647284 A CN112647284 A CN 112647284A CN 202011501189 A CN202011501189 A CN 202011501189A CN 112647284 A CN112647284 A CN 112647284A
- Authority
- CN
- China
- Prior art keywords
- pbo fiber
- agent
- fiber carding
- pbo
- carding
- 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
- 239000000835 fiber Substances 0.000 title claims abstract description 99
- 238000009960 carding Methods 0.000 title claims abstract description 55
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 54
- 239000000126 substance Substances 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- 239000008041 oiling agent Substances 0.000 claims abstract description 23
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 20
- 229920004934 Dacron® Polymers 0.000 claims abstract description 17
- 239000002216 antistatic agent Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 41
- 235000019198 oils Nutrition 0.000 claims description 41
- -1 polyoxyethylene Polymers 0.000 claims description 11
- 229910019142 PO4 Inorganic materials 0.000 claims description 9
- 239000010452 phosphate Substances 0.000 claims description 9
- 235000019482 Palm oil Nutrition 0.000 claims description 5
- 239000002540 palm oil Substances 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- 239000012188 paraffin wax Substances 0.000 claims description 4
- 229920004933 Terylene® Polymers 0.000 claims description 3
- 125000000373 fatty alcohol group Chemical group 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 14
- 230000002378 acidificating effect Effects 0.000 abstract description 13
- 230000005611 electricity Effects 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 229920000728 polyester Polymers 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 3
- 235000019799 monosodium phosphate Nutrition 0.000 description 3
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- ICXAPFWGVRTEKV-UHFFFAOYSA-N 2-[4-(1,3-benzoxazol-2-yl)phenyl]-1,3-benzoxazole Chemical compound C1=CC=C2OC(C3=CC=C(C=C3)C=3OC4=CC=CC=C4N=3)=NC2=C1 ICXAPFWGVRTEKV-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000005662 Paraffin oil Substances 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
- D06M13/2246—Esters of unsaturated carboxylic acids
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
- D06M13/282—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
- D06M13/292—Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a PBO fiber carding oil agent, which consists of 3-8 wt% of sodium hydroxide, 10-20 wt% of an antistatic agent and 72-87 wt% of a polyester chemical fiber oil agent. The method effectively removes the acidic substances on the surface of the PBO fiber by adding the sodium hydroxide, and removes static electricity while removing the acidic substances on the surface of the PBO fiber by adding the antistatic agent to dissolve the substances generated by the reaction of the sodium hydroxide and the acidic substances; static electricity is further removed by adding the dacron chemical fiber oiling agent.
Description
Technical Field
The invention relates to the technical field of oiling agents, and particularly relates to a PBO fiber carding oiling agent.
Background
PBO fiber (Poly-p-phenylene benzobisoxazole, polyparaphenylene benzobisoxazole) is a reinforcing material for composite materials. Etching is an essential step in the production process of PBO fibers, and the etching solution is usually an acidic solution. When a PBO fiber processing product is used, the PBO fiber needs to be carded, and acidic substances attached to the surface of the PBO fiber need to be removed; meanwhile, the PBO fiber generates a large amount of static electricity, and the static electricity needs to be reduced. Most of the existing carding oil is removed by using dacron chemical fiber oil such as paraffin, palm oil and the like, and although the dacron chemical fiber oil cannot damage PBO fibers, the removal effect on acidic substances is limited, and the static electricity improvement effect is also limited.
Disclosure of Invention
The invention aims to provide a PBO fiber carding oil agent which removes acidic substances on the surface of PBO fibers by using an acid-base neutralization principle, improves the removal effect and reduces static electricity.
In order to solve the technical problems, the invention provides a PBO fiber carding oil agent, which consists of sodium hydroxide, an antistatic agent and a terylene chemical fiber oil agent,
the weight percentage content of the sodium hydroxide in the PBO fiber carding oil agent is 3-8%,
the antistatic agent accounts for 10 to 20 weight percent of the PBO fiber carding oil agent,
the weight percentage content of the dacron chemical fiber oiling agent in the PBO fiber carding oiling agent is 72-87%.
Further, the antistatic agent is fatty alcohol phosphate.
Further, the antistatic agent is polyoxyethylene fatty alcohol phosphate.
Further, the dacron chemical fiber oiling agent is paraffin.
Further, the dacron chemical fiber oiling agent is palm oil.
Further, the content of the sodium hydroxide in the PBO fiber carding oil agent is 5% by weight.
Further, the antistatic agent accounts for 15% of the PBO fiber carding oil agent in percentage by weight.
Further, the weight percentage content of the dacron chemical fiber oiling agent in the PBO fiber carding oiling agent is 80%.
The diluted solution of the PBO fiber carding oil agent is characterized in that the concentration of the PBO fiber carding oil agent in the diluted solution is 4 per mill, and the solvent of the diluted solution is water.
A method for using a diluted solution of PBO fiber carding oil agent is characterized in that the diluted solution of the PBO fiber carding oil agent is atomized and sprayed onto PBO fibers.
The invention has the beneficial effects that: the PBO fiber carding oil agent effectively removes acidic substances on the surface of PBO fibers by adding sodium hydroxide, and effectively removes static electricity while removing the acidic substances on the surface of the PBO fibers by adding an antistatic agent to dissolve substances generated by the reaction of the sodium hydroxide and the acidic substances; static electricity is further removed by adding the dacron chemical fiber oiling agent.
The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention.
Detailed Description
The present invention is further described below in conjunction with specific examples to enable those skilled in the art to better understand the present invention and to practice it, but the examples are not intended to limit the present invention.
In the description of the present invention, it should be understood that the term "comprises/comprising" is intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to the listed steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention relates to a PBO fiber carding oil agent, which consists of sodium hydroxide, an antistatic agent and a terylene chemical fiber oil agent. The content of the sodium hydroxide in the PBO fiber carding oil agent is 3-8% by weight, and the sodium hydroxide is used for neutralizing phosphoric acid on the surface of the PBO fiber and effectively removing the phosphoric acid on the surface of the PBO fiber. The antistatic agent accounts for 10-20 wt% of the PBO fiber carding oil agent, sodium hydroxide reacts with phosphoric acid to generate sodium dihydrogen phosphate, the sodium dihydrogen phosphate can cause static electricity, the antistatic agent is added into the PBO fiber carding oil agent to dissolve the sodium dihydrogen phosphate, and the static electricity is reduced while phosphoric acid on the surface of the PBO fiber is effectively removed. The weight percentage content of the dacron chemical fiber oiling agent in the PBO fiber carding oiling agent is 72-87%, and static electricity is further removed by adding the dacron chemical fiber oiling agent.
In the embodiment, the weight percentage content of the sodium hydroxide in the PBO fiber carding oil agent is 5 percent; the static agent is fatty alcohol phosphate or polyoxyethylene fatty alcohol phosphate or the mixture of the fatty alcohol phosphate and the polyoxyethylene fatty alcohol phosphate, and the weight percentage content of the fatty alcohol phosphate in the PBO fiber carding oil agent is 15 percent; the dacron chemical fiber oiling agent is paraffin or palm oil or a mixture of the paraffin and the palm oil, and the weight percentage content of the dacron chemical fiber oiling agent in the PBO fiber carding oiling agent is 80%.
The method for carding the PBO fibers by using the PBO fiber carding oil agent comprises the following steps: adding water into the PBO fiber carding oil agent to prepare a diluted solution with the concentration of the PBO fiber carding oil agent being 4 per mill, atomizing the diluted solution and spraying the atomized solution onto the PBO fibers. In the process of carding the PBO fiber, the diluted solution with the PBO fiber carding oil concentration of 4 per mill is atomized and sprayed onto the PBO fiber, the PBO fiber can be carded after the diluted solution with the PBO fiber carding oil concentration of 4 per mill is sprayed, and the PBO fiber can also be carded while the diluted solution with the PBO fiber carding oil concentration of 4 per mill is sprayed. The oil agent can effectively remove acidic substances on the surface of the PBO fiber, and the PBO fiber is smooth and easy to comb, and cannot be adhered to cotton carding rollers.
The invention has the beneficial effects that: the PBO fiber carding oil agent effectively removes acidic substances on the surface of PBO fibers by adding sodium hydroxide, and effectively removes static electricity while removing the acidic substances on the surface of the PBO fibers by adding an antistatic agent to dissolve substances generated by the reaction of the sodium hydroxide and the acidic substances; static electricity is further removed by adding the dacron chemical fiber oiling agent.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. A PBO fiber carding oil agent is characterized in that: the PBO fiber carding oil agent consists of sodium hydroxide, an antistatic agent and a terylene chemical fiber oil agent,
the weight percentage content of the sodium hydroxide in the PBO fiber carding oil agent is 3-8%,
the antistatic agent accounts for 10 to 20 weight percent of the PBO fiber carding oil agent,
the weight percentage content of the dacron chemical fiber oiling agent in the PBO fiber carding oiling agent is 72-87%.
2. A PBO fiber carding finish according to claim 1, characterized in that: the antistatic agent is fatty alcohol phosphate.
3. A PBO fiber carding finish according to claim 1, characterized in that: the antistatic agent is polyoxyethylene fatty alcohol phosphate.
4. A PBO fiber carding finish according to claim 1, characterized in that: the dacron chemical fiber oiling agent is paraffin.
5. A PBO fiber carding finish according to claim 1, characterized in that: the dacron chemical fiber oiling agent is palm oil.
6. A PBO fiber carding finish according to claim 1, characterized in that: the content of the sodium hydroxide in the PBO fiber carding oil agent is 5 percent by weight.
7. A PBO fiber carding finish according to claim 1, characterized in that: the antistatic agent accounts for 15% of the PBO fiber carding oil agent in percentage by weight.
8. A PBO fiber carding finish according to claim 1, characterized in that: the weight percentage content of the dacron chemical fiber oiling agent in the PBO fiber carding oiling agent is 80%.
9. A diluted solution using the PBO fiber carding oil of any of claims 1 to 8, characterized in that: the concentration of the PBO fiber carding oil agent in the diluted solution is 4 per mill, and the solvent of the diluted solution is water.
10. A method of using a diluted solution of the PBO fiber carding finish of claim 9, characterized by: and atomizing the diluted solution of the PBO fiber carding oil agent and spraying the atomized solution onto the PBO fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011501189.4A CN112647284A (en) | 2020-12-17 | 2020-12-17 | PBO fiber carding oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011501189.4A CN112647284A (en) | 2020-12-17 | 2020-12-17 | PBO fiber carding oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112647284A true CN112647284A (en) | 2021-04-13 |
Family
ID=75355040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011501189.4A Pending CN112647284A (en) | 2020-12-17 | 2020-12-17 | PBO fiber carding oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112647284A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257951A (en) * | 1999-12-21 | 2000-06-28 | 浙江皇马化工集团有限公司 | Polyester staple fiber spinning oil and manufacturing method thereof |
| CN1693551A (en) * | 2005-06-09 | 2005-11-09 | 东华大学 | Method of preparing polyparaphenyl bracing benzdioxazole fibre |
| CN103334305A (en) * | 2013-06-04 | 2013-10-02 | 黄山市强力化工有限公司 | Polyester staple fiber oil agent |
| CN103397519A (en) * | 2013-07-03 | 2013-11-20 | 江苏华西村股份有限公司特种化纤厂 | Method for producing polyester staple fiber special for high-cleanness nonwoven spunlace |
| CN106939514A (en) * | 2017-04-25 | 2017-07-11 | 上海新浦特种助剂有限公司 | A kind of terylene FDY spinning oil |
| CN108252098A (en) * | 2017-12-18 | 2018-07-06 | 江苏新瑞贝科技股份有限公司 | A kind of polyester fiber spinning oil and preparation method thereof |
-
2020
- 2020-12-17 CN CN202011501189.4A patent/CN112647284A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257951A (en) * | 1999-12-21 | 2000-06-28 | 浙江皇马化工集团有限公司 | Polyester staple fiber spinning oil and manufacturing method thereof |
| CN1693551A (en) * | 2005-06-09 | 2005-11-09 | 东华大学 | Method of preparing polyparaphenyl bracing benzdioxazole fibre |
| CN103334305A (en) * | 2013-06-04 | 2013-10-02 | 黄山市强力化工有限公司 | Polyester staple fiber oil agent |
| CN103397519A (en) * | 2013-07-03 | 2013-11-20 | 江苏华西村股份有限公司特种化纤厂 | Method for producing polyester staple fiber special for high-cleanness nonwoven spunlace |
| CN106939514A (en) * | 2017-04-25 | 2017-07-11 | 上海新浦特种助剂有限公司 | A kind of terylene FDY spinning oil |
| CN108252098A (en) * | 2017-12-18 | 2018-07-06 | 江苏新瑞贝科技股份有限公司 | A kind of polyester fiber spinning oil and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 中国技术成果大全编辑部: "《中国技术成果大全》", 31 October 1994, 科学技术文献出版社 * |
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|---|---|---|---|
| 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: 20210413 |
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| RJ01 | Rejection of invention patent application after publication |