CN1214061A - Method for reclaiming fused vinyl plastisols - Google Patents
Method for reclaiming fused vinyl plastisols Download PDFInfo
- Publication number
- CN1214061A CN1214061A CN97193173A CN97193173A CN1214061A CN 1214061 A CN1214061 A CN 1214061A CN 97193173 A CN97193173 A CN 97193173A CN 97193173 A CN97193173 A CN 97193173A CN 1214061 A CN1214061 A CN 1214061A
- Authority
- CN
- China
- Prior art keywords
- plastipaste
- vinyl
- mixture
- solvent
- added
- 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
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 title claims abstract description 26
- 229920002554 vinyl polymer Polymers 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 23
- 229920001944 Plastisol Polymers 0.000 title abstract 4
- 239000004999 plastisol Substances 0.000 title abstract 4
- 239000002904 solvent Substances 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 20
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims abstract description 12
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims abstract description 12
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims abstract description 11
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims abstract description 8
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 19
- 239000004902 Softening Agent Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims description 6
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000004014 plasticizer Substances 0.000 abstract description 3
- 239000011877 solvent mixture Substances 0.000 abstract 1
- 239000004744 fabric Substances 0.000 description 10
- 238000007614 solvation Methods 0.000 description 6
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 102100035474 DNA polymerase kappa Human genes 0.000 description 2
- 101710108091 DNA polymerase kappa Proteins 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- -1 adipic acid ester Chemical class 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229940067597 azelate Drugs 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- MTZQAGJQAFMTAQ-UHFFFAOYSA-N ethyl benzoate Chemical compound CCOC(=O)C1=CC=CC=C1 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-N hexanedioic acid Natural products OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 125000005591 trimellitate group Chemical group 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
- C08J11/08—Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
A method is disclosed for recycling fused vinyl plastisols. The vinyl plastisols are comminuted and dissolved in a solvent, such as cyclohexanone, dichloromethane, hexane, chloroform, methyl ethyl ketone or ethyl acetate. A plasticizer is added to the solvent mixture after the vinyl plastisol has dissolved, and the solvent is removed from the mixture under vacuum.
Description
Invention field
Put it briefly, the invention relates to the polymer materials field of recycling.More particularly, the present invention is a kind of method that reclaims plasticizing vinyl plastipaste, for example: as the polyvinyl chloride of carpet backing fabric material.
Background of invention
Vinyl plastipaste is that a class comprises the solid or spumescence plastics such as polyvinyl chloride, phthalic ester plasticizer, inert filler and various pigment and processing aid usually.One of prevailing purposes of this class material is the base fabric material as family expenses or industry and commerce usefulness carpet product.
One is how to recycle them when its product terminates work-ing life with the terrible relevant problem of this series products.This is actual especially for carpet product, because the annual discarded carpet that enormous quantity is all arranged, thereby a large amount of vinyl plastipastes of infiltrating this series products are arranged.In addition, in making the carpet process, also collect a large amount of base fabric materials with the chip form.
So far, the main method of recycling the carpet backing fabric composition is that vinyl plastipaste base fabric material is ground to form fritter, is thermoformed into plastic part then.Also use cryogenic grinding, this technology comprises: at first vinyl plastipaste is chopped into smaller piece, freezes then, be ground into powder under freezing.Then, gained powder and new plastipaste blend can be formed new bottom cloth layer.Yet because the result of mechanical mill operation, these class methods certainly will cause the labor force seriously intensive.Cryogenic method freezes the additional drawback of relevant required cost of energy with making material in addition.So it is useful that a kind of method that does not rely on pure mechanically operated these materials of recycling such as grinding or shredding is provided.The invention provides a kind of such method.
Summary of the invention
Basic sides of the present invention is a kind of method of using chemical process rather than pure mechanical means to recycle plasticizing vinyl plastipaste.The present invention can make this class material come back to its original liquid state, thereby it can be used again form product innovation, the method that is adopted is that its molten prolonging is become film or is molded as moulded parts, and with any known the whole bag of tricks this material is plastified again and to be vinyl product solid or foaming.Under the situation of vinyl plastipaste carpet backing fabric, dead meal or chip can be able to be arrived its original liquid state again, be used further to the new carpet backing fabric of moulding.
Present method generally comprises following steps: 1) pulverize plasticizing vinyl plastipaste, preferred employing is ground or chopping makes this material form small size particle; 2) in particle, add one or more solvents and make the particle solvation; Solvent is selected from pimelinketone, methylene dichloride, hexane, chloroform, methylethylketone and ethyl acetate; 3) add the compatible softening agent of employed former softening agent in another kind of and the vinyl plastipaste; And 4) from mixture, remove and desolvate, preferably adopt the method for extraction solvent under vacuum.
DESCRIPTION OF THE PREFERRED
In preferred embodiments, the about 0.25 inch piece of diameter is ground or cut into to vinyl plastipaste to be recycled, its purpose is to be convenient to processing by the surface area that increases material, and quickens removal process.With regard to the well-known this method of those of ordinary skills, can use commercially available various any machine for this reason.
Then, the vinyl plastipaste of this grinding is added to during solvent bathes, solvent can comprise one of the following or its combination, and these solvents are pimelinketone, methylene dichloride, hexane, chloroform, methylethylketone and ethyl acetate.Can heat and/or stir solvent/plastipaste mixture, so that the accelerated solvent process.
After the complete solvation of vinyl plastipaste, in mixture, add the compatible other softening agent of former softening agent that uses with vinyl plastipaste.This class softening agent comprises: O-phthalic, acid esters, adipic acid ester, azelate, trimellitate, benzoic ether and polymeric plasticizer.
Under vacuum, extract solvent out, and remaining mixture is removed any useless composition through coarse filtration.The preferred already known processes that uses reclaims solvent, so that use once more in this technology.
Remaining mixture is a kind of height plastifying material.Under the situation of pvc material, the dispersion grade polyvinyl chloride is added in the salvage material, so that obtain castable vinyl plastipaste.So just can be applied among the standard plastipaste with this form.
A concrete embodiment preferred of present method is as described below, and it uses flexible PVC carpet backing fabric material to make material to be recycled.Coarsness is ground or be chopped into to the first step with flexible PVC.Granularity will determine the time length of solvation step.
With the vinyl plastipaste chip and the solvent blend of chopping, as: methylene dichloride, its quantity ratio are that a approximately vinyl plastipaste that is added is to four parts of solvents.With about 24 hours of gained solvent/crumb mixture ageing, and intermittently stir, so that increase solvation rate.Those skilled in the art can judge that the solvation time can change according to character, temperature and other factors of plastipaste and solvent.
In case the whole solvations of vinyl plastipaste just add 6 parts of DINP (diisononyl phthalate) softening agent.The mixture of solvent, vinyl plastipaste and the DINP of gained is transported in the rotary vacuum dryer.Use tightness system, from mixture, remove and desolvate, and with solvent collection in other container.
The residue slip is a height plastifying plastipaste, resin, filler and stablizer can be added in rotary vacuum drier or this mixture in impeller.Can use the new base fabric material of products therefrom manufacturing (or other products) with normal method.
Though in preamble, narrated various preferred embodiment of the present invention, it should be understood that, the present invention is not limited to those embodiments, under the condition of the scope and spirit that do not exceed and deviate from the following claim of the present invention, can carry out various improvement to those embodiments.
Claims (3)
1. one kind is reclaimed the method that plastifies vinyl plastipaste material, and this method comprises: a) pulverize the plastipaste material and form small size particle; B) solvent that will be selected from pimelinketone, methylene dichloride, hexane, chloroform, methylethylketone and ethyl acetate is added in this particle; Form solvent and particulate mixture; C) particle is dissolved in this mixture; D) softening agent is added in this mixture; And e) solvent is removed from mixture.
2. the process of claim 1 wherein that adopting the method that mixture is vacuumized to remove desolvates from mixture.
3. the process of claim 1 wherein that vinyl plastipaste is polyvinyl chloride.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1046096P | 1996-01-23 | 1996-01-23 | |
| US60/010,460 | 1996-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1214061A true CN1214061A (en) | 1999-04-14 |
Family
ID=21745862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97193173A Pending CN1214061A (en) | 1996-01-23 | 1997-01-22 | Method for reclaiming fused vinyl plastisols |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0876425A4 (en) |
| JP (1) | JP2000504367A (en) |
| CN (1) | CN1214061A (en) |
| AU (1) | AU715814B2 (en) |
| BR (1) | BR9707171A (en) |
| HU (1) | HUP9901859A3 (en) |
| IL (1) | IL125302A0 (en) |
| NO (1) | NO983374L (en) |
| NZ (1) | NZ331450A (en) |
| PL (1) | PL327992A1 (en) |
| TR (1) | TR199801404T2 (en) |
| WO (1) | WO1997027242A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2573899A (en) * | 1998-02-04 | 1999-08-23 | Mannington Mills Inc. | Surface coverings containing fused recycled material and processes of making thesame |
| EP4067421A1 (en) * | 2021-03-22 | 2022-10-05 | Baerlocher GmbH | Method for treating halogenated polymers |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3836486A (en) * | 1971-01-13 | 1974-09-17 | Hafner Industries | Vinyl chloride polymer recovery process |
| US3975208A (en) * | 1973-10-17 | 1976-08-17 | Southwire Company | Method of selectively recovering vinyl halide insulation from insulated wire scrap |
| JPS6015433A (en) * | 1983-07-07 | 1985-01-26 | Toyo Rubber Chem Ind Co Ltd | Production of jelly-like pvc composition |
| US5232606A (en) * | 1990-05-01 | 1993-08-03 | Ortech Corporation | Process for recycling of supported or contaminated PVC |
| DE4322926C1 (en) * | 1993-07-09 | 1994-10-06 | Kluthe Gmbh Chem Werke | Process for recycling plastisols |
-
1997
- 1997-01-22 BR BR9707171A patent/BR9707171A/en not_active Application Discontinuation
- 1997-01-22 JP JP52694297A patent/JP2000504367A/en active Pending
- 1997-01-22 EP EP97904825A patent/EP0876425A4/en not_active Withdrawn
- 1997-01-22 AU AU17517/97A patent/AU715814B2/en not_active Ceased
- 1997-01-22 IL IL12530297A patent/IL125302A0/en not_active IP Right Cessation
- 1997-01-22 WO PCT/US1997/000919 patent/WO1997027242A1/en not_active Application Discontinuation
- 1997-01-22 PL PL32799297A patent/PL327992A1/en unknown
- 1997-01-22 HU HU9901859A patent/HUP9901859A3/en unknown
- 1997-01-22 NZ NZ33145097A patent/NZ331450A/en unknown
- 1997-01-22 TR TR1998/01404T patent/TR199801404T2/en unknown
- 1997-01-22 CN CN97193173A patent/CN1214061A/en active Pending
-
1998
- 1998-07-22 NO NO983374A patent/NO983374L/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TR199801404T2 (en) | 1998-12-21 |
| JP2000504367A (en) | 2000-04-11 |
| NZ331450A (en) | 1999-08-30 |
| EP0876425A4 (en) | 1998-12-30 |
| WO1997027242A1 (en) | 1997-07-31 |
| PL327992A1 (en) | 1999-01-04 |
| AU1751797A (en) | 1997-08-20 |
| IL125302A0 (en) | 1999-03-12 |
| HUP9901859A2 (en) | 1999-09-28 |
| HUP9901859A3 (en) | 2000-04-28 |
| NO983374D0 (en) | 1998-07-22 |
| NO983374L (en) | 1998-07-22 |
| BR9707171A (en) | 1999-07-20 |
| AU715814B2 (en) | 2000-02-10 |
| EP0876425A1 (en) | 1998-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |