CN212790145U - Composite filter material with strong antibacterial property - Google Patents
Composite filter material with strong antibacterial property Download PDFInfo
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- CN212790145U CN212790145U CN202021422901.7U CN202021422901U CN212790145U CN 212790145 U CN212790145 U CN 212790145U CN 202021422901 U CN202021422901 U CN 202021422901U CN 212790145 U CN212790145 U CN 212790145U
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- 239000000463 material Substances 0.000 title claims abstract description 64
- 230000000844 anti-bacterial effect Effects 0.000 title claims description 23
- 239000002131 composite material Substances 0.000 title claims description 20
- 150000001875 compounds Chemical class 0.000 claims abstract description 20
- 238000005728 strengthening Methods 0.000 claims abstract description 13
- 238000010041 electrostatic spinning Methods 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 84
- 239000000835 fiber Substances 0.000 claims description 17
- 239000003365 glass fiber Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 8
- 239000007888 film coating Substances 0.000 claims description 7
- 238000009501 film coating Methods 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000002105 nanoparticle Substances 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 12
- 231100000719 pollutant Toxicity 0.000 abstract description 12
- 230000003115 biocidal effect Effects 0.000 abstract description 8
- 244000005700 microbiome Species 0.000 abstract description 6
- 210000002489 tectorial membrane Anatomy 0.000 abstract description 6
- 210000000438 stratum basale Anatomy 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 description 18
- 239000000428 dust Substances 0.000 description 12
- 239000000126 substance Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- 239000004734 Polyphenylene sulfide Substances 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 241000282414 Homo sapiens Species 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- GJEAMHAFPYZYDE-UHFFFAOYSA-N [C].[S] Chemical group [C].[S] GJEAMHAFPYZYDE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003905 indoor air pollution Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
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Abstract
The utility model relates to a compound filter media technical field especially relates to a compound filter media that bacterinertness is strong, including filter media body, assembly jig and fixed lug, the filter media body is formed through electrostatic spinning technology processing by stratum basale, tectorial membrane layer, antibiotic layer, filter material layer, strengthening layer and temperature-resistant layer, and the upper surface of stratum basale contacts with the lower surface of tectorial membrane layer, and the lower surface on antibiotic layer is located the upper surface on tectorial membrane layer, and the lower surface on filter material layer contacts with the upper surface on antibiotic layer, and the strengthening layer is located the upper surface on filter material layer, the lower surface on temperature-resistant layer contacts with the upper surface on strengthening layer. The utility model discloses reached and made compound filter media possess and carry out filterable purpose to solid-state pollutant, gaseous pollutant and harmful microorganism for the functionality of compound filter media is showing and is promoting, and the practicality and the reliability of compound filter media strengthen greatly, and the filter media possesses excellent intensity, weatherability and temperature resistance simultaneously, makes its applied place more extensive.
Description
Technical Field
The utility model relates to a compound filter media technical field especially relates to a compound filter media that bacterinertness is strong.
Background
The environment is a living space of human beings, and comprises a natural environment, a daily life environment, a study environment and a working environment. With the development of science and technology and the improvement of the living standard of people, people pay more and more attention to the influence of a plurality of uncertain factors and environmental problems appearing in living environment on the health of human bodies. Indoor pollution seriously affects human health, which is also called a special disaster in modern cities. At present, indoor air pollution is internationally listed as an environmental factor which is the most harmful to public health. Polluted air, water, carbon dust, radiation and toxic substances all the time damage our health, and the pollution of indoor environment is more serious.
In the process of filtering air, water and other substances, the use of the composite filter material can play a key role, but the existing composite filter material still has defects, the functional composite filter material becomes one of the key points of the development and research of the air filter material, but the functional filter material of the three-effect composite filter material of 'solid, gas and micro', still cannot have the effect, and the multifunctional performance of the three-effect composite filter material of solid pollutants, gaseous pollutants and harmful microorganisms is difficult to be considered mutually, so that the practicability of the composite filter material is greatly reduced.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
To prior art not enough, the utility model provides a compound filter media that bacterinertness is strong has reached and has made compound filter media possess and carry out filterable purpose to solid-state pollutant, gaseous pollutant and harmful microorganism for the functionality of compound filter media is showing and is promoting, and the practicality and the reliability of compound filter media strengthen greatly.
(II) technical scheme
In order to realize the technical problem, the utility model provides a following technical scheme: the utility model provides a compound filter media that bacterinertness is strong, includes filter media body, assembly jig and fixed lug, the filter media body is formed through electrostatic spinning technology processing by stratum basale, tectorial membrane layer, antibiotic layer, filter material layer, strengthening layer and temperature resistant layer, the upper surface of stratum basale contacts with the lower surface of tectorial membrane layer, the lower surface on antibiotic layer is located the upper surface of tectorial membrane layer, the lower surface on filter material layer contacts with the upper surface on antibiotic layer, the strengthening layer is located the upper surface on filter material layer, the lower surface on temperature resistant layer contacts with the upper surface on strengthening layer.
Further, the substrate layer is a needled felt formed by blending polytetrafluoroethylene and glass fibers, wherein the content ratio of the polytetrafluoroethylene to the glass fibers is 1:1, and the aperture of the substrate layer is 1-2 μm.
Further, the coating layer is of a PPS fiber structure, the antibacterial layer is of a silver nanoparticle combined coating agent structure, and the antibacterial layer is uniformly coated on the upper surface of the coating layer.
Furthermore, the filter material layer is composed of a polyimide fiber structure, graft modified activated carbon is filled in the filter material layer, the strengthening layer is a glass fiber structure, and the temperature resistant layer is a ceramic fiber structure.
Furthermore, the outer surface of the filter material body is provided with grooves, the grooves are continuously arranged relative to the surface of the filter material body, and the grooves are continuously arranged in a wave shape.
Further, the filter material body is fixedly installed on an assembly jig, and the assembly jig is rectangular in shape.
Furthermore, the number of the fixed lifting lugs is four, the four fixed lifting lugs are respectively and fixedly installed at the top and the bottom of two sides of the assembling frame, and through holes matched with the bolts are formed in the fixed lifting lugs.
(III) advantageous effects
The utility model provides a compound filter media that bacterinertness is strong possesses following beneficial effect:
1. the utility model discloses a make the filter media body by electrostatic spinning technology, in order to prepare the filter membrane that has big fluffy degree and the three-dimensional distortion structure of specific surface area, realize filtering the colleges and universities of solid-state pollutant, fill simultaneously in the filter bed through the modified active carbon of grafting, can realize effectively getting rid of gaseous pollutants such as formaldehyde, benzene, and the antibiotic layer of cooperation is silver-colored nano particle, can have comprehensively, strong effect, quick antibiotic function of disinfecting, consequently, make the practicality of compound filter media, the reliability strengthens greatly, realize disinfecting to harmful microorganism's broad spectrum.
2. The utility model discloses because the setting of strengthening layer, through the outstanding performance of glass fiber high temperature resistance, can work for a long time under 260 ℃ temperature condition, the temperature can reach 350 ℃ in the twinkling of an eye, and high strength, the rate of expansion is little, its tensile strength is than other various nature, synthetic fiber is all high, good corrosion resisting property, can be able to bear the sour corruption of most part, the glass fiber surface is smooth, filtration resistance is little, be favorable to the dust to peel off, do not burn simultaneously, indeformable, and outstanding dimensional stability has, tensile fracture strength is high, corrosion resistance is strong, the surface is smooth, the hydrophobic is ventilative, the easy deashing, chemical stability is good, can greatly improve the intensity and the weatherability of filter media body self.
3. The utility model discloses because the setting on temperature resistant layer, ceramic fiber filtering material's specific surface area is great, there is bigger interfacial adsorption and can hold back the suspended solid, the filter effect is good, have the aperture that has more littleer simultaneously, higher filter fineness, and ceramic fiber has good thermal stability, chemical stability and thermal shock resistance moreover, have higher reliability to the processing of handling inferior high temperature flue gas, especially ultra-high temperature flue gas, thereby the high temperature resistance of filter media body has been improved, the practicality of compound filter media has been improved, it is more extensive to make its place of application.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
fig. 2 is a schematic view of the structure of the filter material body of the present invention.
In the figure: 1. a filter material body; 2. a groove; 3. an assembly frame; 4. fixing the lifting lug; 11. a base layer; 12. a film coating layer; 13. an antimicrobial layer; 14. a filter material layer; 15. a strengthening layer; 16. a temperature resistant layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a composite filter material with strong antibacterial property comprises a filter material body 1, an assembly frame 3 and a fixed lifting lug 4, wherein the filter material body 1 is formed by processing a substrate layer 11, a film coating layer 12, an antibacterial layer 13, a filter material layer 14, a reinforcing layer 15 and a temperature-resistant layer 16 through an electrostatic spinning process, the upper surface of the substrate layer 11 is in contact with the lower surface of the film coating layer 12, the lower surface of the antibacterial layer 13 is positioned on the upper surface of the film coating layer 12, the lower surface of the filter material layer 14 is in contact with the upper surface of the antibacterial layer 13, the reinforcing layer 15 is positioned on the upper surface of the filter material layer 14, the lower surface of the temperature-resistant layer 16 is in contact with the upper surface of the reinforcing layer 15, the filter material body 1 is manufactured through the electrostatic spinning process to prepare a filter membrane with a large fluffiness and a three-dimensional distortion structure with a specific surface area, high-calibration filtration of solid pollutants is realized, meanwhile, graft modified active, Gaseous pollutants such as benzene are effectively removed, and the silver nano particles are matched with the antibacterial layer 13, so that the composite filter material has comprehensive, powerful and quick antibacterial and bactericidal functions, the practicability and reliability of the composite filter material are greatly enhanced, and the broad-spectrum sterilization of harmful microorganisms is realized.
The base layer 11 is a needled felt formed by blending polytetrafluoroethylene and glass fibers, wherein the content ratio of the polytetrafluoroethylene to the glass fibers is 1:1, the aperture of the base layer 11 is 1-2 mu m, a dust layer does not need to be formed due to the small aperture of the base layer 11, a good dust catching effect can be achieved only by the dust catching function of the base layer, dust can be controlled to enter the deep part of a filter material, the filter material is prevented from being blocked, the dynamic friction coefficient of the surface of the filter material is reduced, the dust cleaning performance is improved, the high self hydrophobicity of a hand is facilitated, the filter material can be prevented from scaling due to condensation, the coating layer 12 is of a PPS fiber structure, polyphenylene sulfide (PPS) is high-temperature resistant synthetic fiber, hydrocarbon and carbon sulfur atoms form stable covalent bonds, the fiber has stable chemical properties, a high melting point and excellent heat resistance, and in addition, the flame retardance and chemical resistance of the needled felt are stable in, The high-temperature resistant fiber has the characteristics of high stability, high filtering efficiency and different internal stresses, can be continuously exposed at the temperature of 190 ℃, can resist chemical corrosion of various acids, alkalis and oxidants, is hydrolysis resistant, has the moisture absorption rate of only 0.6 percent, can be used under the conditions of humidity and chemistry (such as sulfur oxide), has the antibacterial layer 13 of a silver nanoparticle combined coating agent structure, is uniformly coated on the upper surface of the coating layer 12, has the filter material layer 14 of a polyimide fiber structure, can be continuously used at the temperature of below 260 ℃, has the instantaneous temperature of 280 ℃, has an irregular blade-shaped section compared with a common circular section and increases the surface area by 80 percent, and has two advantages that the P84 fiber has stronger dust resistance and dust catching capacity due to the blade-shaped section, the distribution is uneven, so that the fibers are naturally curled, and stronger cohesive force and entanglement force are generated among the fibers.
The filter material layer 14 is filled with grafted modified activated carbon, the reinforcing layer 15 is of a glass fiber structure, due to the arrangement of the reinforcing layer 15, the glass fiber can work for a long time at the temperature of 260 ℃ through the high-temperature resistance outstanding performance of the glass fiber, the instantaneous temperature can reach 350 ℃, the strength is high, the expansion rate is small, the tensile strength is higher than that of other various natural and synthetic fibers, the glass fiber has excellent corrosion resistance, can resist the corrosion of most of acid (except hydrofluoric acid), the surface of the glass fiber is smooth, the filtering resistance is small, dust stripping is facilitated, meanwhile, the glass fiber is not burnt and does not deform, the glass fiber has outstanding dimensional stability, the tensile fracture strength is high, the corrosion resistance is strong, the surface is smooth, hydrophobic and air-permeable, dust is easily removed, the chemical stability is good, the strength and weather resistance of the filter material body 1 can be greatly improved, the temperature resistant layer 16 is, because of the arrangement of the temperature resistant layer 16, the ceramic fiber filtering material has larger specific surface area, larger interface adsorption and capability of intercepting suspended matters, good filtering effect, smaller aperture and higher filtering precision, and the ceramic fiber has good thermal stability, chemical stability and thermal shock resistance, and has higher reliability for processing sub-high temperature smoke, especially ultra-high temperature smoke, thereby improving the high temperature resistance of the filtering material body 1, improving the practicability of the composite filtering material, leading the application place to be wider, the outer surface of the filtering material body 1 is provided with the grooves 2, the grooves 2 are continuously arranged relative to the surface of the filtering material body 1, the shape of the continuous arrangement of the grooves 2 is wave-shaped, the arrangement of the grooves 2 can increase the surface of the composite filtering material, the contact surface with a filtering object can be improved, and thereby improving the filtering effect of the composite filtering material on various substances, simultaneously the wave that continuous recess is constituteed can make the dust concentrate on the recess surface to this can be convenient for clean the filter media, thereby guarantee the clean and tidy nature of compound filter media, filter media body 1 fixed mounting is on assembly jig 3, and the shape of assembly jig 3 is the rectangle, and the quantity of fixed lug 4 is four, and four fixed lugs 4 respectively with fixed mounting in the top and the bottom of assembly jig 3 both sides, set up the through-hole that the cooperation bolt used on the fixed lug 4.
The utility model discloses reached and made compound filter media possess and carry out filterable purpose to solid-state pollutant, gaseous pollutant and harmful microorganism for the functionality of compound filter media is showing and is promoting, and the practicality and the reliability of compound filter media strengthen greatly, and the filter media possesses excellent intensity, weatherability and temperature resistance simultaneously, makes its applied place more extensive.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a compound filter media that bacterinertness is strong, includes filter media body (1), assembly jig (3) and fixed lug (4), its characterized in that: the filter material body (1) is formed by processing a basal layer (11), a film coating layer (12), an antibacterial layer (13), a filter material layer (14), a strengthening layer (15) and a temperature-resistant layer (16) through an electrostatic spinning process, the upper surface of the basal layer (11) is contacted with the lower surface of the film coating layer (12), the lower surface of the antibacterial layer (13) is positioned on the upper surface of the film coating layer (12), the lower surface of the filter material layer (14) is contacted with the upper surface of the antibacterial layer (13), the strengthening layer (15) is positioned on the upper surface of the filter material layer (14), and the lower surface of the temperature-resistant layer (16) is contacted with the upper surface of the strengthening layer (15).
2. The composite filter material with strong antibacterial property according to claim 1, wherein: the base layer (11) is a needled felt formed by blending polytetrafluoroethylene and glass fibers, wherein the content ratio of the polytetrafluoroethylene to the glass fibers is 1:1, and the aperture of the base layer (11) is 1-2 mu m.
3. The composite filter material with strong antibacterial property according to claim 1, wherein: the coating layer (12) is of a PPS fiber structure, the antibacterial layer (13) is of a silver nanoparticle combined coating agent structure, and the antibacterial layer (13) is uniformly coated on the upper surface of the coating layer (12).
4. The composite filter material with strong antibacterial property according to claim 1, wherein: the filter material layer (14) is composed of a polyimide fiber structure, grafted modified activated carbon is filled in the filter material layer (14), the strengthening layer (15) is a glass fiber structure, and the temperature resistant layer (16) is a ceramic fiber structure.
5. The composite filter material with strong antibacterial property according to claim 1, wherein: the filter material is characterized in that grooves (2) are formed in the outer surface of the filter material body (1), the grooves (2) are continuously arranged relative to the surface of the filter material body (1), and the grooves (2) are continuously arranged and are wavy.
6. The composite filter material with strong antibacterial property according to claim 1, wherein: the filter material body (1) is fixedly installed on an assembly frame (3), and the assembly frame (3) is rectangular.
7. The composite filter material with strong antibacterial property according to claim 1, wherein: the number of the fixed lifting lugs (4) is four, the four fixed lifting lugs (4) are respectively and fixedly installed at the top and the bottom of the two sides of the assembling frame (3), and through holes matched with bolts for use are formed in the fixed lifting lugs (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021422901.7U CN212790145U (en) | 2020-07-17 | 2020-07-17 | Composite filter material with strong antibacterial property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021422901.7U CN212790145U (en) | 2020-07-17 | 2020-07-17 | Composite filter material with strong antibacterial property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212790145U true CN212790145U (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021422901.7U Active CN212790145U (en) | 2020-07-17 | 2020-07-17 | Composite filter material with strong antibacterial property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212790145U (en) |
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2020
- 2020-07-17 CN CN202021422901.7U patent/CN212790145U/en active Active
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| GR01 | Patent grant | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Qianxiao Wanqi (Yancheng) Technology Co.,Ltd. Assignor: YANCHENG INSTITUTE OF INDUSTRY TECHNOLOGY Contract record no.: X2023980047353 Denomination of utility model: A composite filter material with strong antibacterial properties Granted publication date: 20210326 License type: Common License Record date: 20231118 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240412 Address after: 224426 Xiaojian Town National Entrepreneurship Park, Xiangshui County, Yancheng City, Jiangsu Province Patentee after: Yancheng Jiufeng Textile Co.,Ltd. Country or region after: China Address before: No. 285, Jiefang South Road, Yancheng City, Jiangsu Province, 224000 Patentee before: YANCHENG INSTITUTE OF INDUSTRY TECHNOLOGY Country or region before: China |