CA2152641A1 - Improvements in and relating to the reclaiming of elastomeric materials - Google Patents
Improvements in and relating to the reclaiming of elastomeric materialsInfo
- Publication number
- CA2152641A1 CA2152641A1 CA 2152641 CA2152641A CA2152641A1 CA 2152641 A1 CA2152641 A1 CA 2152641A1 CA 2152641 CA2152641 CA 2152641 CA 2152641 A CA2152641 A CA 2152641A CA 2152641 A1 CA2152641 A1 CA 2152641A1
- Authority
- CA
- Canada
- Prior art keywords
- zinc
- sulphur
- elastomeric material
- rubber
- accelerators
- 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.)
- Abandoned
Links
- 239000000463 material Substances 0.000 title claims abstract description 20
- 229920001971 elastomer Polymers 0.000 claims abstract description 52
- 239000005060 rubber Substances 0.000 claims abstract description 48
- 239000000203 mixture Substances 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 38
- 150000001875 compounds Chemical class 0.000 claims abstract description 31
- 239000013536 elastomeric material Substances 0.000 claims abstract description 25
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 11
- 239000012190 activator Substances 0.000 claims abstract description 11
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 11
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000008117 stearic acid Substances 0.000 claims abstract description 11
- 239000011787 zinc oxide Substances 0.000 claims abstract description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000005864 Sulphur Substances 0.000 claims abstract description 8
- 150000003751 zinc Chemical class 0.000 claims abstract description 7
- 230000000977 initiatory effect Effects 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 238000004073 vulcanization Methods 0.000 claims abstract description 3
- DUBNHZYBDBBJHD-UHFFFAOYSA-L ziram Chemical compound [Zn+2].CN(C)C([S-])=S.CN(C)C([S-])=S DUBNHZYBDBBJHD-UHFFFAOYSA-L 0.000 claims description 14
- 229920003052 natural elastomer Polymers 0.000 claims description 12
- 229920001194 natural rubber Polymers 0.000 claims description 12
- RKQOSDAEEGPRER-UHFFFAOYSA-L zinc diethyldithiocarbamate Chemical compound [Zn+2].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S RKQOSDAEEGPRER-UHFFFAOYSA-L 0.000 claims description 11
- 244000043261 Hevea brasiliensis Species 0.000 claims description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- IUJLOAKJZQBENM-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SNC(C)(C)C)=NC2=C1 IUJLOAKJZQBENM-UHFFFAOYSA-N 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 6
- AUMBZPPBWALQRO-UHFFFAOYSA-L zinc;n,n-dibenzylcarbamodithioate Chemical compound [Zn+2].C=1C=CC=CC=1CN(C(=S)[S-])CC1=CC=CC=C1.C=1C=CC=CC=1CN(C(=S)[S-])CC1=CC=CC=C1 AUMBZPPBWALQRO-UHFFFAOYSA-L 0.000 claims description 6
- 150000003558 thiocarbamic acid derivatives Chemical class 0.000 claims description 5
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 5
- 229960002447 thiram Drugs 0.000 claims description 5
- 239000004615 ingredient Substances 0.000 claims description 4
- 229920003051 synthetic elastomer Polymers 0.000 claims description 4
- 239000005061 synthetic rubber Substances 0.000 claims description 4
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 claims description 3
- HLBZWYXLQJQBKU-UHFFFAOYSA-N 4-(morpholin-4-yldisulfanyl)morpholine Chemical compound C1COCCN1SSN1CCOCC1 HLBZWYXLQJQBKU-UHFFFAOYSA-N 0.000 claims description 3
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- ZNCAMSISVWKWHL-UHFFFAOYSA-L zinc;butoxy-butylsulfanyl-oxido-sulfanylidene-$l^{5}-phosphane Chemical compound [Zn+2].CCCCOP([O-])(=S)SCCCC.CCCCOP([O-])(=S)SCCCC ZNCAMSISVWKWHL-UHFFFAOYSA-L 0.000 claims description 3
- 238000010292 electrical insulation Methods 0.000 claims description 2
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims 8
- PGNWIWKMXVDXHP-UHFFFAOYSA-L zinc;1,3-benzothiazole-2-thiolate Chemical compound [Zn+2].C1=CC=C2SC([S-])=NC2=C1.C1=CC=C2SC([S-])=NC2=C1 PGNWIWKMXVDXHP-UHFFFAOYSA-L 0.000 claims 4
- QUPAJUAGQJQKQE-UHFFFAOYSA-L zinc;n,n-dipropylcarbamodithioate Chemical compound [Zn+2].CCCN(C([S-])=S)CCC.CCCN(C([S-])=S)CCC QUPAJUAGQJQKQE-UHFFFAOYSA-L 0.000 claims 4
- OPNUROKCUBTKLF-UHFFFAOYSA-N 1,2-bis(2-methylphenyl)guanidine Chemical compound CC1=CC=CC=C1N\C(N)=N\C1=CC=CC=C1C OPNUROKCUBTKLF-UHFFFAOYSA-N 0.000 claims 2
- AUZONCFQVSMFAP-UHFFFAOYSA-N disulfiram Chemical compound CCN(CC)C(=S)SSC(=S)N(CC)CC AUZONCFQVSMFAP-UHFFFAOYSA-N 0.000 claims 2
- 150000002357 guanidines Chemical class 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 8
- 238000004064 recycling Methods 0.000 abstract description 5
- 150000002009 diols Chemical class 0.000 abstract description 4
- 239000011230 binding agent Substances 0.000 abstract 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 12
- 238000003801 milling Methods 0.000 description 5
- 239000000806 elastomer Substances 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- GIUBHMDTOCBOPA-UHFFFAOYSA-N 3h-1,3-benzothiazole-2-thione;zinc Chemical compound [Zn].C1=CC=C2SC(S)=NC2=C1 GIUBHMDTOCBOPA-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 2
- 239000004312 hexamethylene tetramine Substances 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 229960004011 methenamine Drugs 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 238000010063 rubber manufacturing process Methods 0.000 description 2
- 238000006276 transfer reaction Methods 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- BQCRLWBELMWYQA-UHFFFAOYSA-N dipropylcarbamodithioic acid Chemical compound CCCN(C(S)=S)CCC BQCRLWBELMWYQA-UHFFFAOYSA-N 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 150000004659 dithiocarbamates Chemical class 0.000 description 1
- CPTKRFGBTRWQCP-UHFFFAOYSA-L dizinc;n,n-diethylcarbamodithioate;n,n-dimethylcarbamodithioate Chemical compound [Zn+2].[Zn+2].CN(C)C([S-])=S.CCN(CC)C([S-])=S CPTKRFGBTRWQCP-UHFFFAOYSA-L 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000010077 mastication Methods 0.000 description 1
- 230000018984 mastication Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- LVPSBELIABHESA-UHFFFAOYSA-L zinc;n,n-dibutylcarbamothioate Chemical compound [Zn+2].CCCCN(C([O-])=S)CCCC.CCCCN(C([O-])=S)CCCC LVPSBELIABHESA-UHFFFAOYSA-L 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI9401654 | 1994-06-25 | ||
| MYPI9401654 | 1994-06-25 | ||
| MYEP95301399.2 | 1995-03-03 | ||
| EP19950301399 EP0690091B1 (en) | 1994-06-25 | 1995-03-03 | Improvements in and relating to the reclaiming of natural and synthetic rubbers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2152641A1 true CA2152641A1 (en) | 1995-12-26 |
Family
ID=26140066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2152641 Abandoned CA2152641A1 (en) | 1994-06-25 | 1995-06-26 | Improvements in and relating to the reclaiming of elastomeric materials |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPH0841107A (fi) |
| CN (1) | CN1086715C (fi) |
| AU (1) | AU696872B2 (fi) |
| BR (1) | BR9502937A (fi) |
| CA (1) | CA2152641A1 (fi) |
| CZ (1) | CZ166595A3 (fi) |
| DK (1) | DK72095A (fi) |
| EG (1) | EG20625A (fi) |
| FI (1) | FI953036A (fi) |
| HU (1) | HU214782B (fi) |
| IL (1) | IL114297A0 (fi) |
| NZ (1) | NZ272426A (fi) |
| PL (1) | PL309273A1 (fi) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113150416A (zh) * | 2021-02-26 | 2021-07-23 | 三河市长城橡胶有限公司 | 一种废旧橡胶加工用剪切助剂及利用该助剂获得高分子生态橡胶的方法 |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4104031B2 (ja) * | 1998-10-28 | 2008-06-18 | 株式会社ブリヂストン | 再生ゴム |
| IL132422A0 (en) * | 1999-10-17 | 2001-03-19 | Levgum Ltd | Modifier for devulcanization of cured elastomers mainly vulcanized rubber and method for devulcanization by means of this modifier |
| DE10052450A1 (de) * | 1999-10-22 | 2001-04-26 | Ket Kunststoff Und Elasttechni | Devulkanisat aus Gummiabfällen, Devulkanisatcompound, Verfahren zu deren Herstellung und Verwendung zum Wiedereinsatz in Frischmischungen und zur Herstellung von Spritzgußformteilen |
| CN1100084C (zh) * | 2000-12-29 | 2003-01-29 | 李大年 | 废橡胶再生工艺及废橡胶新生剂 |
| CZ300227B6 (cs) * | 2001-08-08 | 2009-03-25 | Ester, Spol. S R. O. | Zpusob recyklace odpadní pryže |
| WO2006037278A1 (fr) * | 2004-10-09 | 2006-04-13 | Min Duo Chen | Procede de regeneration de dechets elastomeres |
| JP2007154348A (ja) * | 2005-12-02 | 2007-06-21 | Towa Corp:Kk | 手袋及びその製造方法 |
| EP2041213A1 (en) * | 2006-07-13 | 2009-04-01 | Elastomer Technologies Ltd. | Improvements in and relating to the recycling of natural and synthetic rubbers |
| US8673989B2 (en) * | 2011-11-25 | 2014-03-18 | New Rubber Technologies Holdings, Inc. | Method of devulcanizing a cross-linked elastomeric material |
| US9574069B2 (en) * | 2014-04-30 | 2017-02-21 | Lehigh Technologies, Inc. | Chemically functionalized renewed rubber composition |
| CN105949503B (zh) * | 2016-05-27 | 2019-08-09 | 徐州工业职业技术学院 | 一种环保型活性氢化丁腈橡胶硫化胶粉及其制备方法 |
| JP6915431B2 (ja) * | 2017-07-31 | 2021-08-04 | 横浜ゴム株式会社 | タイヤ用ゴム組成物 |
| WO2023239994A1 (en) * | 2022-06-06 | 2023-12-14 | Exxonmobil Chemical Patents Inc. | Producing copolymers of elemental sulfur and comonomers recovered from post-consumer polymer stream |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101463A (en) * | 1975-02-04 | 1978-07-18 | Amerace Corporation | Molded composition and article molded therefrom |
| JPS6017202B2 (ja) * | 1976-12-10 | 1985-05-01 | 株式会社ブリヂストン | 硫黄加硫異性化ゴムの製造方法 |
| JPS541391A (en) * | 1977-06-07 | 1979-01-08 | Bridgestone Tire Co Ltd | Regeneration of waste rubber |
| US4110240A (en) * | 1977-07-29 | 1978-08-29 | Wyrough And Loser, Inc. | Coprecipitation process |
| DE3014717A1 (de) * | 1980-04-17 | 1981-10-22 | Bayer Ag, 5090 Leverkusen | Vulkanisationssystem, dieses enthaltende kautschukmischung, sowie ein verfahren zur vulkanisation |
-
1995
- 1995-06-15 JP JP14902595A patent/JPH0841107A/ja active Pending
- 1995-06-20 FI FI953036A patent/FI953036A/fi unknown
- 1995-06-20 EG EG48595A patent/EG20625A/xx active
- 1995-06-22 CZ CZ951665A patent/CZ166595A3/cs unknown
- 1995-06-23 IL IL11429795A patent/IL114297A0/xx unknown
- 1995-06-23 NZ NZ272426A patent/NZ272426A/en unknown
- 1995-06-23 DK DK72095A patent/DK72095A/da not_active Application Discontinuation
- 1995-06-23 HU HU9501872A patent/HU214782B/hu not_active IP Right Cessation
- 1995-06-23 PL PL30927395A patent/PL309273A1/xx unknown
- 1995-06-26 BR BR9502937A patent/BR9502937A/pt not_active Application Discontinuation
- 1995-06-26 CN CN95109174A patent/CN1086715C/zh not_active Expired - Fee Related
- 1995-06-26 CA CA 2152641 patent/CA2152641A1/en not_active Abandoned
- 1995-06-26 AU AU23270/95A patent/AU696872B2/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113150416A (zh) * | 2021-02-26 | 2021-07-23 | 三河市长城橡胶有限公司 | 一种废旧橡胶加工用剪切助剂及利用该助剂获得高分子生态橡胶的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2327095A (en) | 1996-01-11 |
| DK72095A (da) | 1995-12-26 |
| HU9501872D0 (en) | 1995-08-28 |
| IL114297A0 (en) | 1995-10-31 |
| BR9502937A (pt) | 1996-03-12 |
| FI953036A0 (fi) | 1995-06-20 |
| MX9502610A (es) | 1998-07-31 |
| CN1086715C (zh) | 2002-06-26 |
| PL309273A1 (en) | 1995-12-27 |
| CZ166595A3 (en) | 1996-01-17 |
| HU214782B (hu) | 1998-05-28 |
| JPH0841107A (ja) | 1996-02-13 |
| EG20625A (en) | 1999-10-31 |
| HUT73207A (en) | 1996-06-28 |
| FI953036A (fi) | 1995-12-26 |
| AU696872B2 (en) | 1998-09-17 |
| NZ272426A (en) | 1998-07-28 |
| CN1127271A (zh) | 1996-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5770632A (en) | Reclaiming of elastomeric materials | |
| US20100317752A1 (en) | Recycling of Natural and Synthetic Rubber | |
| CA2152641A1 (en) | Improvements in and relating to the reclaiming of elastomeric materials | |
| EP0690091B1 (en) | Improvements in and relating to the reclaiming of natural and synthetic rubbers | |
| US6316508B1 (en) | Rubber composition and method for producing the same | |
| US6590042B1 (en) | Recycled rubber processing and performance enhancement | |
| US20220403146A1 (en) | Reclaimed material for manufacturing shoes and method of producing reclaimed rubber by processing recycled shoe material waste | |
| EP1442076B1 (en) | Process for regeneration of rubber from scrap | |
| EP0748837B1 (en) | Process for reclaiming elastomeric material | |
| CA2080985A1 (en) | Method for continuously preparing thermo-crosslinkable and/or thermoplastic elastomer blends | |
| KR100386192B1 (ko) | 고무물질의 재생방법 | |
| Saleh et al. | Study on the role of crumb rubber on the thermal and mechanical properties of natural rubber nanocomposites | |
| EP3743465B1 (en) | Recycling of vulcanized rubber products | |
| MXPA95002610A (en) | Improvements in and related to the recovery of elastomeri materials | |
| TWI817422B (zh) | 鞋製程中之廢鞋材處理及回收其再生膠之方法與再生鞋材 | |
| Movahed et al. | The Study on the Mechanical Properties of the De-Vulcanized Waste Rubber by a Mechanical Technique | |
| WO2022234443A9 (en) | Method of functionalising an elastomeric material and the use thereof in rubber formulations | |
| CA3188487A1 (en) | Process for the preparation of styrene-butadiene rubbers comprising recycled rubber powder | |
| MX2007005044A (en) | Improvements in and relating to the recycling of natural and synthetic rubbers | |
| Shiny et al. | New accelerator system for low temperature curing of elastomers with special reference to NR, NBR and NR/BR blends | |
| AU2002337819A1 (en) | Recycled rubber processing and performance enhancement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |