WO2007036171A1 - A method for recycling a mixture of engineering thermoplastics to obtain a tough thermoplastic material and a mixture of engineering materials - Google Patents
A method for recycling a mixture of engineering thermoplastics to obtain a tough thermoplastic material and a mixture of engineering materials Download PDFInfo
- Publication number
- WO2007036171A1 WO2007036171A1 PCT/CZ2006/000064 CZ2006000064W WO2007036171A1 WO 2007036171 A1 WO2007036171 A1 WO 2007036171A1 CZ 2006000064 W CZ2006000064 W CZ 2006000064W WO 2007036171 A1 WO2007036171 A1 WO 2007036171A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mixture
- weight percent
- styrene
- maximum
- fact
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 66
- 239000000463 material Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004064 recycling Methods 0.000 title claims abstract description 19
- 229920003247 engineering thermoplastic Polymers 0.000 title claims abstract description 13
- 239000012815 thermoplastic material Substances 0.000 title claims abstract description 9
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 17
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 17
- 239000004417 polycarbonate Substances 0.000 claims abstract description 16
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 13
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims abstract description 13
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 12
- 229920003023 plastic Polymers 0.000 claims abstract description 11
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 9
- 229920001400 block copolymer Polymers 0.000 claims abstract description 7
- 229920001897 terpolymer Polymers 0.000 claims abstract description 7
- 229920005996 polystyrene-poly(ethylene-butylene)-polystyrene Polymers 0.000 claims abstract description 6
- 239000000047 product Substances 0.000 claims abstract description 5
- 239000012467 final product Substances 0.000 claims abstract description 4
- 206010011906 Death Diseases 0.000 claims abstract description 3
- 239000012535 impurity Substances 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 description 10
- 239000012994 photoredox catalyst Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920006942 ABS/PC Polymers 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- RLRINNKRRPQIGW-UHFFFAOYSA-N 1-ethenyl-2-[4-(2-ethenylphenyl)butyl]benzene Chemical compound C=CC1=CC=CC=C1CCCCC1=CC=CC=C1C=C RLRINNKRRPQIGW-UHFFFAOYSA-N 0.000 description 1
- 229920006827 ABS/PMMA Polymers 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920004142 LEXAN™ Polymers 0.000 description 1
- 239000004418 Lexan Substances 0.000 description 1
- 102220481647 Methylmalonyl-CoA epimerase, mitochondrial_K70T_mutation Human genes 0.000 description 1
- 229920007019 PC/ABS Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010128 melt processing Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920006132 styrene block copolymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
- B29B17/0036—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting of large particles, e.g. beads, granules, pellets, flakes, slices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
- B29K2033/04—Polymers of esters
- B29K2033/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
- B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
-
- 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
This invention refers to a method for recycling a mixture of engineering thermoplastics to obtain a tough thermoplastic material . The subject matter of the invention is that the input material is disintegrated to a size of 1 mm to 10 mm. Then, a mixture is created containing 40 to 80 weight percent of polycarbonate, 10 to 50 weight percent of terpolymer acrylonitrile-butadiene- styrene, a maximum of 10 weight percent of poly (methyl methacrylate) and a maximum of 10 weight percent of thermoplastic elastomer on the basis of styrene-ethylene/butylene-styrene block copolymer or styrene-butadiene-styrene block copolymer. As the last step, the mixture is processed into the final product . The invention also refers to a mixture of engineering materials which contains 40 to 80 weight percent of polycarbonate, 10 to 50 weight percent of terpolymer acrylonitrile-butadiene-styrene, a maximum of 10 weight percent of poly (methyl methacrylate) and maximum of 10 weight percent of thermoplastic elastomer on the basis of styrene-ethylene/butylene-styrene block copolymer or styrene -butadiene styrene block copolymer. The input material can be technological scrap generated during plastics processing, especially scrap generated during the production of car lighting components. The input material can be also end-of-life plastic products, especially car lighting components from scrap cars.
Description
A method for recycling a mixture of engineering thermoplastics to obtain a tough thermoplastic material and a mixture of engineering materials.
Technical field
This invention refers to a method for recycling a mixture of engineering thermoplastics to obtain a tough thermoplastic material and a mixture of engineering materials.
Background of the invention
At the present time, engineering thermoplastics generated from production waste, e.g. car rear lights and other products which have reached the end of their service life, such as rear lights from scrapped cars, is commonly disposed of in landfills or is incinerated. However, these disposal processes are uneconomical and unfriendly to the environment, and they waste the material and energetic content of the disposed polymers. The most effective way to use the material and energetic input in the production of a virgin polymer is to recycle the material. Material recycling involves supplying mechanical energy and additives, i.e. stabilizers, colorants, fillers, etc., to upgrade the waste material to a new material with mechanical and esthetical properties which will be close to those of the virgin material .
Recycling of production waste plastics is mainly limited to well-separated mono-material wastes from the production of plastic components. The main restriction on broader utilization of recycling procedures for waste plastics is the fact that the waste components tend to be composed of several plastics that
are hard to dismantle. The individual parts are usually produced from PC - polycarbonate, ABS - acrylonitrile-butadiene-styrene, PMMA - poly (methyl methacrylate) , TPE - thermoplastic elastomer or blends of PC/ABS, ABS/PMMA, PC/PMMA, etc. Separating the mono- material waste demands high investment in machinery, and the operating costs are high in relation to relatively low productivity. Another problem with the separating procedures is their low efficiency: in practice, not more than 95% purity of the separated fraction is achieved.
The above-mentioned problems of separating mono-material plastic wastes are solved when the plastic waste is recycled as a multi-material mixture. Recycling a mixture of polycarbonate with polymers on the basis of styrene and with the addition of elastomer was studied, for example, in invention JP 2004352762. Recycling a ternary mixture is addressed in invention US 5,232,986, which focuses on a mixture of PMMA/ABS/PC with a major component of PMMA. Extrusion of thermoplastic mixtures in a closed loop recycling system, especially mixtures of PC/PMMA, with the addition of a compatibilizator on the basis of MBS - methylmethacrylate-butadiene-styrene or terpolymer consisting of butadiene - is described in invention US 5,569,713. Recycling quaternary mixtures of PET/ABS/PC/SBS or PET/ABS/PC/SEBS, where PET is a major component, is discussed in invention US 2004209985.
In the case of a multi-material engineering thermoplastics mixture, a primary condition for the economic practicability of the recycling process is that the recyclate should have a high level of final utilizable properties. When the material properties of mixtures of PC, ABS, PMMA and TPE were investigated, it was surprisingly found that these mixtures of a certain composition exhibit essentially higher toughness than their individual components. Furthermore, it was proved that
increased thermo-mechanical loading of these mixtures during melt processing, e.g. regranulation, leads to undesirable deterioration of the mechanical properties of the final product. These considerations are fundamental to the method for recycling a mixture of PC, ABS, PMMA and TPE according to the invention.
Summary of the invention
The above-mentioned deficiencies are eliminated to a large extent in the method according to this invention for recycling a mixture of engineering thermoplastics to obtain a tough thermoplastic material. The subject matter of the invention is that the input material is disintegrated to a size of 1 mm to 10 mm. Then, a mixture is created containing 40 to 80 weight percent of polycarbonate, 10 to 50 weight percent of terpolymer acrylonitrile-butadiene-styrene, a maximum of 10 weight percent of poly (methyl methacrylate) and a maximum of 10 weight percent of thermoplastic elastomer on the basis of styrene- ethylene/butylene-styrene block copolymer or styrene-butadiene- styrene block copolymer. In the last step, the mixture is processed into the final product .
Advantageous implementation involves magnetic and induction separation of metallic impurities from the disintegrated material .
The invention also refers to a mixture of engineering materials, which contains 40 to 80 weight percent of polycarbonate, 10 to 50 weight percent of terpolymer acrylonitrile-butadiene-styrene, a maximum of 10 weight percent of poly (methyl methacrylate) and a maximum of 10 weight percent of thermoplastic elastomer on the basis of styrene-
-A- ethylene/butylene-styrene block copolymer or styrene-butadiene- styrene block copolymer.
The input material can be technological scrap generated during plastics processing, especially the scrap generated during the production of car lighting components. The input material can also be end-of-life plastic products, especially car lighting components from scrapped cars.
Any of the components can be a virgin material .
The considerable advantage of this method for recycling a mixture of engineering thermoplastics according to the invention is that the toughness of the final recyclate is usually higher than the toughness of the virgin materials PC, ABS, PMMA, while a balanced complex of utilizable properties is retained.
Another advantage of the method for recycling a mixture of engineering thermoplastics according to the invention is that there is no regranulation of the grind, which guarantees low thermo-mechanical loading of the mixture melt and, as a consequence, retention of the physical properties of the thermoplastic mixture according to the invention, especially the toughness. In addition/ omitting the regranulation step saves power costs for processing the mixture.
The advantages of the method for recycling a mixture of engineering thermoplastics to obtain a tough thermoplastic material according to the invention are further clarified by the following examples.
Detailed description of the preferred embodiments
In the following invention implementation examples, materials were used (see Tab.l) which occur in the production of car rear light assemblies. The materials were mainly as follows:
Polycarbonate (Lexan LS2, GEPlastics) , acrylonitrile-butadiene- styrene (Cycolac X37, GEPlastics), poly(methyl methacrylate)
(Lucryl G88, BASF) and styrene-ethylene/butylene-styrene
(Bergaflex BFI K70A, Bergmann) .
The toughness of the mixtures was evaluated on the basis of fracture mechanics, mainly using the concept of the J-integral (Jid) • The methodology, the preparation of the samples and the equipment for J-integral determination are described in the literature, e.g. W. Grellmann, S. Seidler: Deformation and Fracture Behaviour of Polymers. Springer Verlag, Berlin Heidelberg, 2001.
Example 1
A mixture was obtained by grinding scrap material of car rear lights. The mixture corresponds to the composition of A according to Tab.l.
Grinding was performed with the help of a PH TRIA 47-30/CN granulator with three rotating cutting knives . The average grind size was 5mm. The ground material was de-dusted using an Allgier dust separator, and the metal particles were detected using a Mesurtronic metal detector.
The ground mixture was dried for a minimum of 6 hours at a temperature of 105 0C in a hot-air drier.
The mixture was processed using a Battenfeld 500 injection molding machine with a screw diameter of 35 mm and a length-to- diameter ratio of 75. The melt was injected into a mold for the production of standard ISO 179 specimens. The injection molding unit temperature was set to 245°C, the screw speed reached 128 revolutions per minute, and the backpressure was set to 10 MPa. The mold temperature was 900C.
In comparison with virgin (original) materials 1, 2, 3 according to Tab.l, mixture A shows a higher value of toughness (see values of J-integral Jid) •
Example 2
As in the case of example 1, except that the mixture corresponds to composition B according to Tab.l.
In comparison with virgin (original) materials 1, 2, 3 according to Tab.l, mixture B shows a higher value of toughness (see values of J-integral Jia) .
Example 3
As in the case of example 1, except that the mixture corresponds to composition C according to Tab.l.
In comparison with virgin (original) materials 1, 2, 3 according to Tab.l, mixture C shows a slightly higher value of toughness (see values of J-integral Jτd) .
Example 4
As in the case of example 1, except that the mixture corresponds to composition D according to Tab.l.
In comparison with virgin (original) materials 1, 2, 3 according to Tab.l, mixture D shows a slightly higher value of toughness (see values of J-integral JId) .
Table 1. Toughness of the investigated mixtures
Mixture 1 2 3 A B C D
PC [%] Too - ~ 80 40 60 60
ABS [%] 100 10 50 20 20
PMMA [%] 100 10 10 10 10
SEBS [%] _ 1 100 _
SBS [%] 10 ~J^ [kJ/m2] 11.0 10.2 0~~8 14, 8 12, 6 11,6 11,5
Industrial applications
The method for recycling a mixture of engineering thermoplastics to obtain a tough thermoplastic material, and a mixture which is prepared in this way, will be applied in the disposal of waste engineering thermoplastics generated by the production, for example, of car rear lights, or products that have reached the end of their service life, for example, rear lights from scrapped cars.
Claims
1. The method for recycling a mixture of engineering thermoplastics to obtain a tough thermoplastic material is characterized by the fact that it uniquely comprises the following steps: disintegrating the input material to a size of 1 mm to 10 mm; creating a mixture containing 40 to 80 weight percent of polycarbonate, 10 to 50 weight percent of terpolymer acrylonitrile-butadiene-styrene and a maximum of 10 weight percent of poly (methyl methacrylate) ; processing the mixture to a final product.
2. The method according to claim 1 is characterized by the fact that a maximum of 10 weight percent of thermoplastic elastomer on the basis of block copolymer styrene-ethylene/butylene- styrene is added to the mixture.
3. The method according to claim 1 is characterized by the fact that a maximum of 10 weight percent of thermoplastic elastomer on the basis of block copolymer styrene-butylene -styrene is added to the mixture .
4. The method according to claim 1, 2 or 3 is characterized by the fact that the metallic impurities are separated from the disintegrated material using magnetic and induction separation.
5. The mixture of thermoplastic materials is characterized by the fact that it essentially contains 40 to 80 weight percent of polycarbonate, 10 to 50 weight percent of terpolymer acrylonitrile-butadiene-styrene and a maximum of 10 weight percent of poly (methyl methacrylate).
6. The mixture according to claim 5 is characterized by the fact that the mixture contains an additional amount of a maximum of 10 weight percent of thermoplastic elastomer on the basis of block copolymer styrene-ethylene/butylene-styrene .
7. The mixture according to claim 5 is characterized by the fact that the mixture contains an additional amount of a maximum of 10 weight percent of thermoplastic elastomer on the basis of block copolymer styrene-butylene-styrene .
8. The mixture according to any one of claims 5 to 7 is characterized by the fact that the input material is technological scrap generated during plastics processing.
9. The mixture according to any one of claims 5 to 7 is characterized by the fact that the input material comprises end- of-life plastic products.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZPV2005-624 | 2005-09-30 | ||
| CZ20050624A CZ297698B6 (en) | 2005-09-30 | 2005-09-30 | Tenacious thermoplastic material and process for producing thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007036171A1 true WO2007036171A1 (en) | 2007-04-05 |
Family
ID=37742671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CZ2006/000064 WO2007036171A1 (en) | 2005-09-30 | 2006-09-29 | A method for recycling a mixture of engineering thermoplastics to obtain a tough thermoplastic material and a mixture of engineering materials |
Country Status (2)
| Country | Link |
|---|---|
| CZ (1) | CZ297698B6 (en) |
| WO (1) | WO2007036171A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2058102A1 (en) * | 2007-11-09 | 2009-05-13 | Canon Kabushiki Kaisha | Process for producing thermoplastic resin composition, and thermoplastic resin composition produced by the same |
| CN109880337A (en) * | 2019-02-25 | 2019-06-14 | 宁波公牛精密制造有限公司 | The spray painting polycarbonate compositions and preparation method thereof that high efficiente callback recycles |
| CN110256804A (en) * | 2019-06-28 | 2019-09-20 | 祥兴(福建)箱包集团有限公司 | A kind of preparation method of the anti-scratch PMMA/ABS tank material of toughening type |
| CN114716803A (en) * | 2022-05-16 | 2022-07-08 | 东莞市国亨塑胶科技有限公司 | Regeneration preparation method and regeneration material of ocean recycled polycarbonate |
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| US5424013A (en) * | 1993-08-09 | 1995-06-13 | Lieberman; Mark | Thermoplastic closed loop recycling process |
| EP0906817A1 (en) * | 1996-04-14 | 1999-04-07 | Suzuka Fuji Xerox Co., Ltd. | Coated molded article, method of recycling the same and apparatus therefor |
| EP1193039A1 (en) * | 2000-09-29 | 2002-04-03 | Fuji Photo Film Co., Ltd. | Method of recycling plastic parts for photosensitive material |
| EP1291378A1 (en) * | 2001-03-28 | 2003-03-12 | Sony Corporation | Method of reclaiming resin |
| DE10256305A1 (en) * | 2002-12-03 | 2004-06-24 | Der Grüne Punkt - Duales System Deutschland Ag | Method for processing mixed waste materials comprises identifying materials of several different types as recyclable, separating them and wet-digesting, while residual waste stream is sorted and disposed of |
| EP1479502A1 (en) * | 2002-01-23 | 2004-11-24 | Suzuka Fuji Xerox Co., Ltd. | Process for producing molded article of reclaimed thermoplastic resin |
| US20040253405A1 (en) * | 2003-05-30 | 2004-12-16 | Yasuhito Inagaki | Method for recycling optical disk, resin composition for forming film, and resin molded article |
| EP1609573A1 (en) * | 2003-04-01 | 2005-12-28 | Suzuka Fuji Xerox Co., Ltd. | Molded article of reclaimed thermoplastic resin |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4440905A (en) * | 1980-03-31 | 1984-04-03 | Rohm And Haas Company | Dunkelspersers |
| US4390657A (en) * | 1981-10-19 | 1983-06-28 | General Electric Company | Composition of polycarbonate, an ABS resin and an acrylate-methacrylate interpolymer |
| US5232986A (en) * | 1990-04-28 | 1993-08-03 | Rohm Gmbh Chemische Fabrik | Thermoplastic moulding composition comprising a polymer blend based on poly(meth)acrylate(s), abs-type polymer and polycarbonate |
| CZ286214B6 (en) * | 1998-07-27 | 2000-02-16 | Vladimír Prof. Ing. Drcs. Kubánek | Process for preparing curing compounds from devulcanized rubber and recycled polymers |
| US20040209985A1 (en) * | 2003-04-18 | 2004-10-21 | Woei-Min Tsai | Resin composition for injection molding |
-
2005
- 2005-09-30 CZ CZ20050624A patent/CZ297698B6/en not_active IP Right Cessation
-
2006
- 2006-09-29 WO PCT/CZ2006/000064 patent/WO2007036171A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5424013A (en) * | 1993-08-09 | 1995-06-13 | Lieberman; Mark | Thermoplastic closed loop recycling process |
| EP0906817A1 (en) * | 1996-04-14 | 1999-04-07 | Suzuka Fuji Xerox Co., Ltd. | Coated molded article, method of recycling the same and apparatus therefor |
| EP1193039A1 (en) * | 2000-09-29 | 2002-04-03 | Fuji Photo Film Co., Ltd. | Method of recycling plastic parts for photosensitive material |
| EP1291378A1 (en) * | 2001-03-28 | 2003-03-12 | Sony Corporation | Method of reclaiming resin |
| EP1479502A1 (en) * | 2002-01-23 | 2004-11-24 | Suzuka Fuji Xerox Co., Ltd. | Process for producing molded article of reclaimed thermoplastic resin |
| DE10256305A1 (en) * | 2002-12-03 | 2004-06-24 | Der Grüne Punkt - Duales System Deutschland Ag | Method for processing mixed waste materials comprises identifying materials of several different types as recyclable, separating them and wet-digesting, while residual waste stream is sorted and disposed of |
| EP1609573A1 (en) * | 2003-04-01 | 2005-12-28 | Suzuka Fuji Xerox Co., Ltd. | Molded article of reclaimed thermoplastic resin |
| US20040253405A1 (en) * | 2003-05-30 | 2004-12-16 | Yasuhito Inagaki | Method for recycling optical disk, resin composition for forming film, and resin molded article |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2058102A1 (en) * | 2007-11-09 | 2009-05-13 | Canon Kabushiki Kaisha | Process for producing thermoplastic resin composition, and thermoplastic resin composition produced by the same |
| CN109880337A (en) * | 2019-02-25 | 2019-06-14 | 宁波公牛精密制造有限公司 | The spray painting polycarbonate compositions and preparation method thereof that high efficiente callback recycles |
| CN110256804A (en) * | 2019-06-28 | 2019-09-20 | 祥兴(福建)箱包集团有限公司 | A kind of preparation method of the anti-scratch PMMA/ABS tank material of toughening type |
| CN114716803A (en) * | 2022-05-16 | 2022-07-08 | 东莞市国亨塑胶科技有限公司 | Regeneration preparation method and regeneration material of ocean recycled polycarbonate |
| CN114716803B (en) * | 2022-05-16 | 2024-02-20 | 东莞市国亨塑胶科技有限公司 | Regeneration preparation method of ocean recovered polycarbonate and regenerated material thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CZ2005624A3 (en) | 2007-03-07 |
| CZ297698B6 (en) | 2007-03-07 |
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