CN101434732A - Medical soft polychloroethylene plastic without o-benzene series plasticiser - Google Patents
Medical soft polychloroethylene plastic without o-benzene series plasticiser Download PDFInfo
- Publication number
- CN101434732A CN101434732A CNA2008102205477A CN200810220547A CN101434732A CN 101434732 A CN101434732 A CN 101434732A CN A2008102205477 A CNA2008102205477 A CN A2008102205477A CN 200810220547 A CN200810220547 A CN 200810220547A CN 101434732 A CN101434732 A CN 101434732A
- Authority
- CN
- China
- Prior art keywords
- polyvinyl chloride
- softening agent
- portions
- chloride plastic
- adjacent benzene
- 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
- 239000004014 plasticizer Substances 0.000 title claims abstract description 30
- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 29
- 229920003023 plastic Polymers 0.000 title claims abstract description 27
- 239000004033 plastic Substances 0.000 title claims abstract description 27
- -1 polychloroethylene Polymers 0.000 title claims abstract description 14
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 40
- 239000003381 stabilizer Substances 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000000314 lubricant Substances 0.000 claims abstract description 11
- 239000007787 solid Substances 0.000 claims abstract description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920001577 copolymer Polymers 0.000 claims abstract description 5
- CTJJGIVJOBVMEO-UHFFFAOYSA-N tetraoctyl benzene-1,2,4,5-tetracarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC(C(=O)OCCCCCCCC)=C(C(=O)OCCCCCCCC)C=C1C(=O)OCCCCCCCC CTJJGIVJOBVMEO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920006245 ethylene-butyl acrylate Polymers 0.000 claims abstract description 4
- 229940116351 sebacate Drugs 0.000 claims abstract description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 3
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 claims abstract description 3
- 239000004902 Softening Agent Substances 0.000 claims description 25
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 17
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 235000011837 pasties Nutrition 0.000 claims description 3
- 238000005453 pelletization Methods 0.000 claims description 3
- 235000012424 soybean oil Nutrition 0.000 claims description 3
- 239000003549 soybean oil Substances 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 238000010557 suspension polymerization reaction Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- NIHJEJFQQFQLTK-UHFFFAOYSA-N butanedioic acid;hexanedioic acid Chemical compound OC(=O)CCC(O)=O.OC(=O)CCCCC(O)=O NIHJEJFQQFQLTK-UHFFFAOYSA-N 0.000 claims 1
- 231100000419 toxicity Toxicity 0.000 abstract description 4
- 230000001988 toxicity Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- QYMGIIIPAFAFRX-UHFFFAOYSA-N butyl prop-2-enoate;ethene Chemical compound C=C.CCCCOC(=O)C=C QYMGIIIPAFAFRX-UHFFFAOYSA-N 0.000 abstract 1
- 229920001451 polypropylene glycol Polymers 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 5
- 235000013305 food Nutrition 0.000 description 4
- 239000001361 adipic acid Substances 0.000 description 3
- 230000000711 cancerogenic effect Effects 0.000 description 3
- 231100000315 carcinogenic Toxicity 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010067482 No adverse event Diseases 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 238000004166 bioassay Methods 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229940105305 carbon monoxide Drugs 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a medical soft polyvinyl chloride plastic that does not contain a phthalic plasticizer and a manufacturing method thereof. The medical soft polyvinyl chloride plastic comprises the following raw materials: polyvinyl chloride resins, plasticizers, stabilizers, auxiliary stabilizers and lubricants. The medical polyvinyl chloride plastic is characterized in that the plasticizers are divided into solid plasticizers and liquid plasticizers; the mass portions of all the components are as follows: 100 portions of polyvinyl chloride resins, 10 portions to 50 portions of solid plasticizers, 20 portions to 80 portions of liquid plasticizers, 1 portion to 5 portions of stabilizers, 0 portion to 5 portions of accessory stabilizers and 0.1 portion to 2 portions of lubricants. The solid plasticizers are ethylene-butyl acrylate carboxylic copolymers. The liquid plasticizers are one or combination of more than one of tetraoctyl pyromellitate, tetra-2-ethylhexyl pyromellitate, polypropylene adipate, polybutylene sebacate, polydiethylene glycol sebacate and polypropylene glycol ester sebacate. The medical polyvinyl chloride plastic is characterized by little toxicity and side effect and little possibility for the plasticizers to be drawn out.
Description
Technical field
The present invention relates to a kind of medical flexible polyvinyl chloride plastic that does not contain adjacent benzene class softening agent and preparation method thereof, particularly a kind of medical flexible polyvinyl chloride plastic that can be used for not containing of disposable medical article of adjacent benzene class softening agent and preparation method thereof.
Background technology
For a long time, in the production of medical flexible polyvinyl chloride plastic, softening agent is mainly based on adjacent benzene-type products, phthalic acid two (the 2-ethyl) ester particularly, be called for short DOP, use, but along with DOP in the industrial application of food and medicine more and more widely, people also more and more pay attention to its toxicity.Someone finds, behind the blood that people's input is stored in the polyvinyl chloride plastic pocket, in human body, finds to have the existence of DOP product especially in lung.That is to say that at present the medical flexible polyvinyl chloride plastic of making softening agent with DOP is in its use, DOP can stripping, and human body and environment are brought detrimentally affect.And according to the European food safety EFSA of mechanism regulation, the concentration of DOP reaches and just is considered to unsafe more than 0.05 mg/kg in human body.Nineteen eighty-two authority's American National ICR has carried out biological assay to the carinogenicity of DOP, and its conclusion is: DOP is the carcinogens of rat and mouse, can make the liver of nibbling the class animal carcinogenic.So, caused global attention about the toxicity of DOP.Whether although the carcinogenic saying of people is still debated endlessly up till now, because there is the carcinogenic suspicion of potential in it, each state has all taked relative measures.U.S. environment protection general bureau has stopped the production of 6 kinds of new phthalate industry according to the result of study of National Cancer Institute, and DOP is only limited in the packing of high-moisture food and uses; Switzerland government has determined to ban use of DOP in toy for children; Germany forbids adding DOP in all plastics relevant with human body health, food; Japan forbids adding DOP in the medicine equipment related products, only limit to use in the industrial plastic goods.And in China, adjacent benzene class such as DOP softening agent is also in a large amount of uses, and the employed softening agent of the soft polyvinyl chloride plastic of disposable medical article is still based on DOP.Based on present present situation, press for preparation and do not contain adjacent benzene class softening agent medical flexible polyvinyl chloride plastic.
Summary of the invention
Purpose of the present invention aims to provide medical flexible polyvinyl chloride plastic that does not contain adjacent benzene class softening agent that a kind of toxic side effect is little and possibility that softening agent is drawn out of is minimum and preparation method thereof, to overcome weak point of the prior art.
A kind of medical flexible polyvinyl chloride plastic that does not contain adjacent benzene class softening agent by this purpose design, its material component is polyvinyl chloride (PVC) RESINS, softening agent, stablizer, auxiliary stabilizer and lubricant, it is characterized in that softening agent is solid plasticizer and liquid plasticizer, the shared mass parts of each component is followed successively by: polyvinyl chloride (PVC) RESINS accounts for 100 parts, solid plasticizer accounts for 10～50 parts, and liquid plasticizer accounts for 20～80 parts, 1～5 part of stabilizer comprises, auxiliary stabilizer accounts for 0～5 part, and lubricant accounts for 0.1～2 part.
Described solid plasticizer is the ethylene butyl acrylate carboxyl copolymer.
Described liquid plasticizer is any in tetraoctyl 1,2,4,5-benzenetetra-carboxylate, pyromellitic acid four different monooctyl esters, poly-adipic acid propylene glycol ester, poly-adipic acid butanediol ester, polydiethylene glycol sebacate and the poly-sebacic acid propylene glycol ester or more than one combination.
Described polyvinyl chloride (PVC) RESINS is that suspension polymerization makes, and the vinyl chloride monomer residual quantity in the polyvinyl chloride (PVC) RESINS is less than 1mg/kg, and the viscosity of polyvinyl chloride (PVC) RESINS is 50ml/g～160ml/g.
Described stablizer is the composite calcium zinc stabilizing agent of medical grade powdery or pasty state, and the quality percentage composition of calcium in this stablizer and zinc is respectively less than 1.5%.
Described auxiliary stabilizer is an epoxy soybean oil, and its flash-point is greater than 300 ℃, and oxirane value is greater than 6.6.
Described lubricant is a stearic acid, any one or more than one the combination in oxidized polyethlene wax and the polyfunctional group fatty acid ester.
A kind of making method that does not contain the medical flexible polyvinyl chloride plastic of adjacent benzene class softening agent, it is characterized in that after the accurate weighing of each component according to the above ratio, carry out premix in the input high-speed mixer and make compound and heating, when the temperature of compound reaches 110 ℃, discharge, plasticizing, extruding pelletization form under 110 ℃～160 ℃ conditions then.
Neighbour benzene class plasticizer volatility of the liquid plasticizer that uses among the present invention and toxicity are all much smaller, and physiological process is had no adverse effects, and when contacting with blood or other physiological fluids, the danger that is drawn out of can be ignored.
The solid plasticizer that uses among the present invention, it itself is a kind of nontoxic high molecular polymer, the consistency of it and PVC is fine, in use can not separate out and move to product surface, can improve performances such as the low-temperature performance of material, anti-chemical and microbiological corrosion significantly.
Embodiment
Below in conjunction with embodiment the present invention is further described.
This do not contain adjacent benzene class softening agent medical flexible polyvinyl chloride plastic material component respectively three kinds of prescription schemes in the according to the form below select materials and accurately weigh,
In the above-mentioned prescription, polyvinyl chloride (PVC) RESINS be suspension polymerization to make the polymerization degree be 1000 PVC, wherein the vinyl chloride monomer residual quantity is less than 1mg/kg, the viscosity number of polyvinyl chloride (PVC) RESINS is 50ml/g～160ml/g.Solid plasticizer is the ethylene butyl acrylate carboxyl copolymer, ethylene/n-butyl acrylate/carbonmonoxide (E/nBA/CO) copolymer.Stablizer is the composite calcium zinc stabilizing agent of medical grade powdery or pasty state, and the quality percentage composition of calcium wherein and zinc is respectively less than 1.5%.Auxiliary stabilizer is an epoxy soybean oil, and its flash-point is greater than 300 ℃, and oxirane value is greater than 6.6.
Liquid plasticizer among first embodiment is a tetraoctyl 1,2,4,5-benzenetetra-carboxylate, and lubricant is a stearic acid; Liquid plasticizer among second embodiment is a tetraoctyl 1,2,4,5-benzenetetra-carboxylate, and lubricant is an oxidized polyethlene wax; Liquid plasticizer among the 3rd embodiment is poly-adipic acid propylene glycol ester, and lubricant is the polyfunctional group fatty acid ester.
Make compound and heating with carrying out premix in each material component input high-speed mixer after the accurate weighing; Discharge when the temperature of compound reaches 110 ℃ when the temperature of compound drops to below 80 ℃, is put into parallel double-screw extruder again, plasticizing under 130 ℃ of conditions, extruding pelletization and product.
The product detected result is as follows:
Claims (8)
1. medical flexible polyvinyl chloride plastic that does not contain adjacent benzene class softening agent, its material component is polyvinyl chloride (PVC) RESINS, softening agent, stablizer, auxiliary stabilizer and lubricant, it is characterized in that softening agent is solid plasticizer and liquid plasticizer, the shared mass parts of each component is followed successively by: polyvinyl chloride (PVC) RESINS accounts for 100 parts, solid plasticizer accounts for 10～50 parts, and liquid plasticizer accounts for 20～80 parts, 1～5 part of stabilizer comprises, auxiliary stabilizer accounts for 0～5 part, and lubricant accounts for 0.1～2 part.
2. according to the described medical flexible polyvinyl chloride plastic that does not contain adjacent benzene class softening agent of claim 1, it is characterized in that described solid plasticizer is the ethylene butyl acrylate carboxyl copolymer.
3. according to the described medical flexible polyvinyl chloride plastic that does not contain adjacent benzene class softening agent of claim 1, it is characterized in that described liquid plasticizer is any in tetraoctyl 1,2,4,5-benzenetetra-carboxylate, pyromellitic acid four different monooctyl esters, polypropylene adipate (PPA), poly adipate succinic acid ester, polydiethylene glycol sebacate and the poly-sebacic acid propylene glycol ester or more than one combination.
4. according to the described medical flexible polyvinyl chloride plastic that does not contain adjacent benzene class softening agent of claim 1, it is characterized in that described polyvinyl chloride (PVC) RESINS is that suspension polymerization makes, vinyl chloride monomer residual quantity in the polyvinyl chloride (PVC) RESINS is less than 1mg/kg, and the viscosity of polyvinyl chloride (PVC) RESINS is 50ml/g～160ml/g.
5. according to the described medical flexible polyvinyl chloride plastic that does not contain adjacent benzene class softening agent of claim 1, it is characterized in that described stablizer is the composite calcium zinc stabilizing agent of medical grade powdery or pasty state, the quality percentage composition of calcium in this stablizer and zinc is respectively less than 1.5%.
6. according to the described medical flexible polyvinyl chloride plastic that does not contain adjacent benzene class softening agent of claim 1, it is characterized in that described auxiliary stabilizer is an epoxy soybean oil, its flash-point is greater than 300 ℃, and oxirane value is greater than 6.6.
7. according to the described medical flexible polyvinyl chloride plastic that does not contain adjacent benzene class softening agent of claim 1, it is characterized in that described lubricant is a stearic acid, any one or more than one the combination in oxidized polyethlene wax and the polyfunctional group fatty acid ester.
8. according to the described making method that does not contain the medical flexible polyvinyl chloride plastic of adjacent benzene class softening agent of claim 1, it is characterized in that after the accurate weighing of each component according to the above ratio, carry out premix in the input high-speed mixer and make compound and heating, when the temperature of compound reaches 110 ℃, discharge, plasticizing, extruding pelletization form under 110 ℃～160 ℃ conditions then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102205477A CN101434732A (en) | 2008-12-24 | 2008-12-24 | Medical soft polychloroethylene plastic without o-benzene series plasticiser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102205477A CN101434732A (en) | 2008-12-24 | 2008-12-24 | Medical soft polychloroethylene plastic without o-benzene series plasticiser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101434732A true CN101434732A (en) | 2009-05-20 |
Family
ID=40709376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102205477A Pending CN101434732A (en) | 2008-12-24 | 2008-12-24 | Medical soft polychloroethylene plastic without o-benzene series plasticiser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101434732A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103881273A (en) * | 2014-04-11 | 2014-06-25 | 厦门港光塑胶工业有限公司 | Oil-resisting cold-resisting PVC (Polyvinyl Chloride) transparent aggregate and preparation method thereof |
| CN103965564A (en) * | 2013-01-25 | 2014-08-06 | 北京化工大学 | Plasticized polyvinyl chloride material and preparation method thereof |
| CN104592686A (en) * | 2015-02-02 | 2015-05-06 | 江南大学 | Polyvinyl chloride material for manufacturing ping-pong balls and preparation method thereof |
| CN105086452A (en) * | 2015-08-11 | 2015-11-25 | 株洲时代新材料科技股份有限公司 | Halogen-free flame-retardant polyphenylene sulfide composite material and preparation method thereof |
| CN105086236A (en) * | 2015-08-14 | 2015-11-25 | 联塑科技发展(贵阳)有限公司 | U-PVC plastic, pipe fitting made of U-PVC plastic and preparing method of pipe fitting |
| CN105255047A (en) * | 2015-10-26 | 2016-01-20 | 中广核三角洲（中山）高聚物有限公司 | A minus 50°C ultra-cold-resistant and low-temperature-resistant polyvinyl chloride cable material and its preparation method |
| CN105802069A (en) * | 2016-04-08 | 2016-07-27 | 江阴市雅飞亚化塑有限公司 | Special PVC (polyvinyl chloride) modified granules for gabion mesh covering |
| CN107428957A (en) * | 2015-03-26 | 2017-12-01 | 泰尔茂株式会社 | The extrusion molding apparatus of medical products formed, the extruding forming method of medical products formed and medical products formed |
| CN110256857A (en) * | 2012-12-29 | 2019-09-20 | 美国圣戈班性能塑料公司 | Flexible pipe |
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2008
- 2008-12-24 CN CNA2008102205477A patent/CN101434732A/en active Pending
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| CN110256857A (en) * | 2012-12-29 | 2019-09-20 | 美国圣戈班性能塑料公司 | Flexible pipe |
| CN110256857B (en) * | 2012-12-29 | 2022-01-04 | 美国圣戈班性能塑料公司 | Flexible pipe |
| CN103965564A (en) * | 2013-01-25 | 2014-08-06 | 北京化工大学 | Plasticized polyvinyl chloride material and preparation method thereof |
| CN103965564B (en) * | 2013-01-25 | 2017-05-10 | 北京化工大学 | Plasticized polyvinyl chloride material and preparation method thereof |
| CN103881273A (en) * | 2014-04-11 | 2014-06-25 | 厦门港光塑胶工业有限公司 | Oil-resisting cold-resisting PVC (Polyvinyl Chloride) transparent aggregate and preparation method thereof |
| CN104592686A (en) * | 2015-02-02 | 2015-05-06 | 江南大学 | Polyvinyl chloride material for manufacturing ping-pong balls and preparation method thereof |
| CN104592686B (en) * | 2015-02-02 | 2016-08-24 | 江南大学 | For pvc material manufacturing table tennis and preparation method thereof |
| CN107428957B (en) * | 2015-03-26 | 2023-09-22 | 泰尔茂株式会社 | Medical molded article, extrusion molding method for medical molded article, and extrusion molding device for medical molded article |
| CN107428957A (en) * | 2015-03-26 | 2017-12-01 | 泰尔茂株式会社 | The extrusion molding apparatus of medical products formed, the extruding forming method of medical products formed and medical products formed |
| CN105086452A (en) * | 2015-08-11 | 2015-11-25 | 株洲时代新材料科技股份有限公司 | Halogen-free flame-retardant polyphenylene sulfide composite material and preparation method thereof |
| CN105086452B (en) * | 2015-08-11 | 2018-07-06 | 株洲时代新材料科技股份有限公司 | A kind of halogen-free flameproof polyphenyl thioether composite material and preparation method thereof |
| CN105086236A (en) * | 2015-08-14 | 2015-11-25 | 联塑科技发展(贵阳)有限公司 | U-PVC plastic, pipe fitting made of U-PVC plastic and preparing method of pipe fitting |
| CN105255047B (en) * | 2015-10-26 | 2017-11-24 | 中广核三角洲（中山）高聚物有限公司 | A kind of minus 50 DEG C of super cold resistant low temperature resistant polyvinyl chloride cable materials and preparation method thereof |
| CN105255047A (en) * | 2015-10-26 | 2016-01-20 | 中广核三角洲（中山）高聚物有限公司 | A minus 50°C ultra-cold-resistant and low-temperature-resistant polyvinyl chloride cable material and its preparation method |
| CN105802069A (en) * | 2016-04-08 | 2016-07-27 | 江阴市雅飞亚化塑有限公司 | Special PVC (polyvinyl chloride) modified granules for gabion mesh covering |
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Open date: 20090520 |