CN103907641A - Inorganic antibacterial agent and preparation method thereof as well as antioxidant pipe fitting with same - Google Patents
Inorganic antibacterial agent and preparation method thereof as well as antioxidant pipe fitting with same Download PDFInfo
- Publication number
- CN103907641A CN103907641A CN201410120393.XA CN201410120393A CN103907641A CN 103907641 A CN103907641 A CN 103907641A CN 201410120393 A CN201410120393 A CN 201410120393A CN 103907641 A CN103907641 A CN 103907641A
- Authority
- CN
- China
- Prior art keywords
- antibacterial agent
- inorganic
- pipe fitting
- antioxidant
- resistance oxygen
- 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
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000003242 anti bacterial agent Substances 0.000 title claims abstract description 16
- 239000003963 antioxidant agent Substances 0.000 title abstract 6
- 230000003078 antioxidant effect Effects 0.000 title abstract 6
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920000098 polyolefin Polymers 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 8
- 239000003112 inhibitor Substances 0.000 claims abstract description 8
- 239000002562 thickening agent Substances 0.000 claims abstract description 8
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 7
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 36
- 229910052760 oxygen Inorganic materials 0.000 claims description 36
- 239000001301 oxygen Substances 0.000 claims description 36
- 230000002421 anti-septic effect Effects 0.000 claims description 30
- 239000004743 Polypropylene Substances 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 8
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 8
- 238000002845 discoloration Methods 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- 229920001083 polybutene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 abstract description 8
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000004831 Hot glue Substances 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 8
- 230000003115 biocidal effect Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- FQIRQSFRGRZFDS-UHFFFAOYSA-N [O-2].[Ti+4].[Ag+] Chemical compound [O-2].[Ti+4].[Ag+] FQIRQSFRGRZFDS-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging 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
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses an inorganic antibacterial agent. The inorganic antibacterial agent comprises a compound inorganic nano antibacterial agent, a thickening agent, a dispersing agent and a color-changing inhibitor. The invention further discloses a preparation method of the inorganic antibacterial agent and an antioxidant pipe fitting. The antioxidant pipe fitting comprises the following components in parts by mass: 100 parts of polyolefin, 3-5 parts of a hot melt adhesive, 5-7 parts of an EVOH (Ethylene-Vinyl Alcohol Copolymer) and 1.2-1.8 parts of the inorganic nano antibacterial agent, wherein an inner layer of the antioxidant pipe fitting is composed of the polyolefin and the inorganic nano antibacterial agent; an outer layer of the antioxidant pipe fitting is composed of the EVOH; the hot melt adhesive is used for connecting the inner layer with the outer layer. According to the inorganic antibacterial agent, the problem of poor compatibility is solved; the problem that the color of a product is changed is solved by the modified polyolefin material. The antibacterial self-cleaning antioxidant pipe fitting used in cold and hot water is produced by a three-layer co-extrusion process and the production process is greatly simplified.
Description
Technical field
The present invention relates to tubing technical field, particularly relate to the preparation method of a kind of inorganic nano antiseptic, this inorganic nano antiseptic, and use the hot and cold water antibiotic self-cleaning resistance oxygen tubing of this inorganic nano antiseptic.
Background technology
At present, on market, existing resistance oxygen tubing and resistance oxygen antibacterial pipe material functionalization are more single.What in traditional resistance oxygen antibacterial pipe material, use is inorganic antibacterial, to be used for bacteria growing inhibiting breeding by the antibiotic and sterilizing of institute's metal ion (Ag+), do not produce drug resistance, and warm tolerance is given prominence to (600 ℃ of >), but the silver ion antimicrobial agent that antimicrbial power is the strongest, poor with polyolefine material compatibility, chemical property is active, easy to change and reduce antibiotic property, thereby cannot use in the goods such as white and light color; Meanwhile, the expensive of silver also restricted its wider application.
After using for a long time, on inwall, may there is dirt in common pipe fitting, even moss, and sidewall can become very fragile because of aging conventionally.And in the time that pipe fitting is in the higher working environment of temperature, also may there is the waist phenomenon of collapsing in pipe fitting.Therefore the self-cleaning ability, oxidation resistance and the temperature tolerance that how to improve pipe fitting have had influence on quality and the life-span of pipe fitting.Particularly pipe member, the self-cleaning ability of pipe member also can have influence on flow velocity and the noise in water quality and the course of conveying of carried water.
Summary of the invention
The object of the invention is for the technological deficiency existing in prior art, and a kind of novel inorganic nano antiseptic and preparation method thereof is provided.
The object of the invention is for the technological deficiency existing in prior art, and provide a kind of hot and cold water to use and have the resistance oxygen tubing of antibiotic self-cleaning effect.
For realizing the technical scheme that object of the present invention adopts be:
A kind of inorganic antiseptic, comprises following component,
Composite nano inoganic antibacterial agent 38～43 mass fractions;
Thickener 31～44 mass fractions;
Dispersant 8～13 mass fractions;
Discoloration inhibitor 6～11 mass fractions.
The preparation method of inorganic antiseptic as claimed in claim 1, comprises the following steps,
1) accurately weigh each component and stir 10～20min;
2) viscous liquid is dried to 30～40min at 60 ℃-80 ℃;
3) white powder oven dry being obtained makes after grinding 3～5min.
A kind of resistance oxygen tubing, its component and mass fraction be, polyolefin, 100 mass fractions, PUR, 3-5 mass fraction, EVOH, 5-7 mass fraction, inorganic nano antiseptic claimed in claim 1,1.2-1.8 mass fraction; Wherein, described polyolefin and inorganic nano antiseptic form the internal layer of resistance oxygen tubing, and described EVOH forms the skin of resistance oxygen tubing, and described PUR is in order to be connected internal layer with outer.
Described polyolefin is heat-proof polythene PE-RT, polythene PE, crosslinked polyethylene PE-X, polybutene PB or polypropylene PP.
Compared with prior art, the invention has the beneficial effects as follows:
Inorganic antiseptic of the present invention, has solved the poor problem of compatibility, makes the polyolefine material after modification, has solved goods discoloration problem, has excellent anti-microbial property, and the polyolefine material after modification simultaneously has self-cleaning function, has improved the service life of tubing.
Hot and cold water of the present invention adopts three-layer co-extruded explained hereafter with antibiotic self-cleaning resistance oxygen tubing, its three-decker than traditional antibacterial oxygen-resistance tubing few one deck coextruded layer, greatly simplify production technology, and application NEW TYPE OF COMPOSITE inorganic nano antiseptic has unique antibacterial, self-cleaning function compared with resistance oxygen tubing.
Accompanying drawing explanation
Figure 1 shows that resistance oxygen tubing cross section structure schematic diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1
A kind of inorganic antiseptic, comprises following component, composite nano inoganic antibacterial agent 38kg; Thickener 31kg; Dispersant 8kg; Discoloration inhibitor 6kg; Wherein, the main component of described composite nano inoganic antibacterial agent is metal ion, rare earth ion and nanoscale TiO2, or silver-series antibacterial agent, and the present invention adopts commercial raw material, and as Shenzhen Eli Environmental Protection Co., Ltd. produces, model is Eli.Described discoloration inhibitor is BTA compound, and it is commercial raw material, opens Hue industrial and commercial bank sell as Zhongyuan District, Zhengzhou City, and model is WP.Thickener is synthetic resin, sells as Jinan Sheng Tang Import and Export Co., Ltd., and model is xy-01.Dispersant is nano titanium oxide silver permutoid, and as Xuancheng Jingrui New Material Co., Ltd. produces, model is JRNK61-03.
In the time of concrete preparation, first accurately weigh each component and stir, general mixing time is 10～20min; Then the viscous liquid mixing is dried 30min at 60 ℃; The white powder object middling speed that oven dry is obtained makes after grinding 3min.
Embodiment 2
A kind of inorganic antiseptic, comprises following component, composite nano inoganic antibacterial agent 43kg; Thickener 44kg; Dispersant 13kg; Discoloration inhibitor 11kg; Each component raw material is selected with the first embodiment, in the time of concrete preparation, first accurately weighs each component and stirs, and general mixing time is 10～20min; Then the viscous liquid mixing is dried 35min at 80 ℃; The white powder object middling speed that oven dry is obtained makes after grinding 5min.
Embodiment 3
A kind of inorganic antiseptic, comprises following component, composite nano inoganic antibacterial agent 40kg; Thickener 37kg; Dispersant 11kg; Discoloration inhibitor 8kg; Each component raw material is selected with the first embodiment, in the time of concrete preparation, first accurately weighs each component and stirs, and general mixing time is 10～20min; Then the viscous liquid mixing is dried 40min at 70 ℃; The white powder object middling speed that oven dry is obtained makes after grinding 4min.
Embodiment 4
A kind of inorganic antiseptic, comprises following component, composite nano inoganic antibacterial agent 40kg; Thickener 39kg; Dispersant 12kg; Discoloration inhibitor 10kg; Each component raw material is selected with the first embodiment, in the time of concrete preparation, first accurately weighs each component and stirs, and general mixing time is 10～20min; Then the viscous liquid mixing is dried 30min at 80 ℃; The white powder object middling speed that oven dry is obtained makes after grinding 5min.
Embodiment 5
As shown in Figure 1, the resistance oxygen tubing specification of the present embodiment is D20S5.0, wherein, selects 100kg high density heat-proof polythene PE-RT, its selection standard: density 0.947～0.950g/cm, Vicat softening point >=120 ℃, tensile yield strength 22MPa, bending strength >=30MPa, MFR(190 ℃, 216kg) 0.1～0.4g/10min, stretch modulus >=850MPa, shore hardness 60.
Select 7kg EVOH, its standard: density 1.14g/cm, tensile break strength 44MPa, elongation at break 800%, bending modulus 284.4kPa, impact strength 0.02kJ/m;
5kg PUR EVA, its selection standard: vinyl acetate (VA) content is controlled between 20～28%.
The inorganic antiseptic of preparation in 1.5kg embodiment 1.
Described high density heat-proof polythene PE-RT and inorganic antiseptic form the internal layer 3 of resistance oxygen tubing, and described EVOH forms the skin 1 of resistance oxygen tubing, and described PUR 2 is in order to be connected internal layer with outer.
Wherein, described resistance oxygen tubing adopts three-layer co-extruded technique preparation, and similarly to the prior art, meanwhile, the present embodiment is applicable to high speed extrusion for its temperature control and speed control etc.
Embodiment 6
The resistance oxygen tubing specification of the present embodiment is D20S4.0, wherein, selects 100kg polythene PE, 5kgEVOH, 3kg PUR EVA, the inorganic antiseptic of preparation in 1.2kg embodiment 2.
Described polythene PE and inorganic antiseptic form the internal layer of resistance oxygen tubing, and described EVOH forms the skin of resistance oxygen tubing, and described PUR is in order to be connected internal layer with outer.
Wherein, described resistance oxygen tubing adopts three-layer co-extruded technique preparation, and it is similar that its temperature control and speed control equal prior art, and meanwhile, the present embodiment is applicable to high speed extrusion.
Embodiment 7
The resistance oxygen tubing specification of the present embodiment is D20S4.0, wherein, selects 100kg crosslinked polyethylene PE-X, 6kg EVOH, 5kg PUR EVA, the inorganic antiseptic of preparation in 1.8kg embodiment 3.
Described crosslinked polyethylene PE-X and inorganic antiseptic form the internal layer of resistance oxygen tubing, and described EVOH forms the skin of resistance oxygen tubing, and described PUR is in order to be connected internal layer with outer.
Wherein, described resistance oxygen tubing adopts three-layer co-extruded technique preparation, and it is similar that its temperature control and speed control equal prior art, and meanwhile, the present embodiment is applicable to high speed extrusion.
Embodiment 8
The resistance oxygen tubing specification of the present embodiment is D20S4.0, wherein, selects 100kg polybutene PB, 7kgEVOH, 3kg PUR EVA, the inorganic antiseptic of preparation in 1.5kg embodiment 4.
Described polybutene PB and inorganic antiseptic form the internal layer of resistance oxygen tubing, and described EVOH forms the skin of resistance oxygen tubing, and described PUR is in order to be connected internal layer with outer.
Wherein, described resistance oxygen tubing adopts three-layer co-extruded technique preparation, and it is similar that its temperature control and speed control equal prior art, and meanwhile, the present embodiment is applicable to high speed extrusion.
Embodiment 9
The resistance oxygen tubing specification of the present embodiment is D20S4.0, wherein, selects 100kg polypropylene PP, 7kgEVOH, 3kg PUR EVA, the inorganic antiseptic of preparation in 1.5kg embodiment 4.
Described polypropylene PP and inorganic antiseptic form the internal layer of resistance oxygen tubing, and described EVOH forms the skin of resistance oxygen tubing, and described PUR is in order to be connected internal layer with outer.
Wherein, described resistance oxygen tubing adopts three-layer co-extruded technique preparation, and it is similar that its temperature control and speed control equal prior art, and meanwhile, the present embodiment is applicable to high speed extrusion.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. an inorganic antiseptic, is characterized in that, comprises following component,
Composite nano inoganic antibacterial agent 38～43 mass fractions;
Thickener 31～44 mass fractions;
Dispersant 8～13 mass fractions;
Discoloration inhibitor 6～11 mass fractions.
2. the preparation method of inorganic antiseptic as claimed in claim 1, comprises the following steps,
1) accurately weigh each component and stir 10～20min;
2) viscous liquid is dried to 30～40min at 60 ℃-80 ℃;
3) white powder oven dry being obtained makes after grinding 3～5min.
3. a resistance oxygen tubing, is characterized in that, its component and mass fraction be,
Polyolefin, 100 mass fractions, PUR, 3-5 mass fraction, EVOH, 5-7 mass fraction, inorganic nano antiseptic claimed in claim 1,1.2-1.8 mass fraction;
Wherein, described polyolefin and inorganic nano antiseptic form the internal layer of resistance oxygen tubing, and described EVOH forms the skin of resistance oxygen tubing, and described PUR is in order to be connected internal layer with outer.
4. resistance oxygen tubing as claimed in claim 3, is characterized in that, described polyolefin is heat-proof polythene PE-RT, polythene PE, crosslinked polyethylene PE-X, polybutene PB or polypropylene PP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120393.XA CN103907641A (en) | 2014-03-27 | 2014-03-27 | Inorganic antibacterial agent and preparation method thereof as well as antioxidant pipe fitting with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120393.XA CN103907641A (en) | 2014-03-27 | 2014-03-27 | Inorganic antibacterial agent and preparation method thereof as well as antioxidant pipe fitting with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103907641A true CN103907641A (en) | 2014-07-09 |
Family
ID=51033914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410120393.XA Pending CN103907641A (en) | 2014-03-27 | 2014-03-27 | Inorganic antibacterial agent and preparation method thereof as well as antioxidant pipe fitting with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103907641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223875A (en) * | 2020-09-28 | 2021-01-15 | 日丰企业集团有限公司 | Yellowing-resistant and aging-resistant transparent PPR (polypropylene random copolymer) pipe and preparation method thereof |
| CN114805934A (en) * | 2022-06-07 | 2022-07-29 | 黄静 | Preparation method of antibacterial ABS plastic |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070116783A1 (en) * | 2004-01-26 | 2007-05-24 | Yasuharu Ono | Silver-based inorganic antibacterial agent dispersion |
| CN101644360A (en) * | 2009-09-04 | 2010-02-10 | 王新权 | Antibacterial oxygen obstructing composite pipe and preparation method thereof |
-
2014
- 2014-03-27 CN CN201410120393.XA patent/CN103907641A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070116783A1 (en) * | 2004-01-26 | 2007-05-24 | Yasuharu Ono | Silver-based inorganic antibacterial agent dispersion |
| CN101644360A (en) * | 2009-09-04 | 2010-02-10 | 王新权 | Antibacterial oxygen obstructing composite pipe and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 王亚平: "超细无机纳米复合抗菌剂制备棉类抗菌织物的研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 贺岚等: "无机抗菌剂应用现状及发展趋势研究", 《湖南科技学院学报》 * |
| 陈芳等: "国内外抗菌塑料的发展及其应用", 《广州化工》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223875A (en) * | 2020-09-28 | 2021-01-15 | 日丰企业集团有限公司 | Yellowing-resistant and aging-resistant transparent PPR (polypropylene random copolymer) pipe and preparation method thereof |
| CN114805934A (en) * | 2022-06-07 | 2022-07-29 | 黄静 | Preparation method of antibacterial ABS plastic |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104059300B (en) | A kind of resistance to warm water tube of PPR | |
| CN104989890A (en) | Underground double-layer reinforced and modified polyolefin (DRPO) corrugated pipe for water draining and sewage discharging | |
| CN108314819A (en) | A kind of anti-aging antibacterial PE feed pipes | |
| CN103907641A (en) | Inorganic antibacterial agent and preparation method thereof as well as antioxidant pipe fitting with same | |
| CN106674750A (en) | Toughened antibacterial polypropylene pressure pipe | |
| CN205052327U (en) | Agricultural polyolefin changes light canopy membrane | |
| CN104744814A (en) | Automotive toughened polypropylene corrugated pipe and preparation method thereof | |
| CN106764111A (en) | A kind of good antiscale property antimicrobial form PE RT tubing and preparation method thereof | |
| CN103213363A (en) | Agricultural film | |
| CN108178995A (en) | A kind of high-barrier bottle adhering resin and preparation method thereof | |
| CN202834440U (en) | Glass fiber nano-antibacterial pipe | |
| CN205291727U (en) | Increase tough antibiotic polypropylene pressure pipe | |
| CN202125672U (en) | Antibacterial shading Propylene Random copolymer (PPR) pipe | |
| CN203213317U (en) | Macromolecule bactericidal anti-corrosion waterproof roll | |
| CN106907529A (en) | A kind of underground drainage pipeline | |
| CN201858436U (en) | Nano antibacterial plastic pipe | |
| CN106009396A (en) | Antimicrobial plastic | |
| CN105237851A (en) | Environment-friendly antibacterial material and preparation method thereof | |
| CN107964187A (en) | A kind of high tenacity, the heat-staple PVC pipe with stainless steel effect | |
| CN204785121U (en) | Compound pipe of polyolefin multilayer | |
| CN212056189U (en) | Anti-scaling and anti-bacterial composite pipe | |
| CN205278595U (en) | Strenghthened type winding arrangement wall tubular product | |
| CN201810940U (en) | Three-layer co-extruded polyethylene pipe | |
| CN220332165U (en) | Anti-scale antibacterial PE-RT floor heating pipe | |
| CN104263156A (en) | Stain-resistant elastic latex paint for exterior wall and preparation method of stain-resistant elastic latex paint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140709 |