BRPI0819198A8 - Compósito geotêxtil, e, método para filtrar um líquido para remover pelo menos um contaminante do mesmo - Google Patents
Compósito geotêxtil, e, método para filtrar um líquido para remover pelo menos um contaminante do mesmoInfo
- Publication number
- BRPI0819198A8 BRPI0819198A8 BRPI0819198A BRPI0819198A BRPI0819198A8 BR PI0819198 A8 BRPI0819198 A8 BR PI0819198A8 BR PI0819198 A BRPI0819198 A BR PI0819198A BR PI0819198 A BRPI0819198 A BR PI0819198A BR PI0819198 A8 BRPI0819198 A8 BR PI0819198A8
- Authority
- BR
- Brazil
- Prior art keywords
- contaminant
- filtering
- remove
- liquid
- layer
- Prior art date
Links
- 239000002131 composite material Substances 0.000 title abstract 5
- 239000004746 geotextile Substances 0.000 title abstract 4
- 239000007788 liquid Substances 0.000 title abstract 3
- 239000000356 contaminant Substances 0.000 title abstract 2
- 238000001914 filtration Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000011045 prefiltration Methods 0.000 abstract 2
- 230000000274 adsorptive effect Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0222—Compounds of Mn, Re
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28011—Other properties, e.g. density, crush strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28028—Particles immobilised within fibres or filaments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
- E02B3/126—Flexible prefabricated covering elements, e.g. mats, strips mainly consisting of bituminous material or synthetic resins
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0659—The layers being joined by needling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/46—Materials comprising a mixture of inorganic and organic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/50—Aspects relating to the use of sorbent or filter aid materials
- B01J2220/66—Other type of housings or containers not covered by B01J2220/58 - B01J2220/64
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
- Y10T442/102—Woven scrim
- Y10T442/159—Including a nonwoven fabric which is not a scrim
- Y10T442/16—Two or more nonwoven layers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Nonwoven Fabrics (AREA)
- Filtering Materials (AREA)
Abstract
COMPÓSITO GEOTÊXTIL,E, MÉTODO PARA FILTRAR UM LÍQUIDO PARA REMOVER PELO MENOS UM CONTAMINANTE DO MESMO. Compósito geotêxtil configurado para filtrar líquidos. Os compósitos geotêxteis incluem uma camada de pré-filtro, uma camada de pós-filtro e pelo menos duas camadas de filtro intermediárias dispostas entre a camada de pré-filtro e a camada de pós filtro. Pelo menos um tela fibrosa que inclui fibras compósitas e partículas adsortivas é disposta entre as pelo menos duas camadas de filtro intermediárias. A tela fibrosa tem um componente estrutural, e um componente polimérico termicamente ligável.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/935,128 US7870965B2 (en) | 2007-11-05 | 2007-11-05 | Geotextile composite for filtration of contaminated liquids and sediments |
| PCT/US2008/012344 WO2009061366A1 (en) | 2007-11-05 | 2008-10-31 | Geotextile composite for filtration of contaminated liquids and sediments and methods of using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BRPI0819198A2 BRPI0819198A2 (pt) | 2015-05-05 |
| BRPI0819198A8 true BRPI0819198A8 (pt) | 2018-06-12 |
Family
ID=40587047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0819198A BRPI0819198A8 (pt) | 2007-11-05 | 2008-10-31 | Compósito geotêxtil, e, método para filtrar um líquido para remover pelo menos um contaminante do mesmo |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US7870965B2 (pt) |
| EP (1) | EP2207673A4 (pt) |
| BR (1) | BRPI0819198A8 (pt) |
| CA (1) | CA2704594C (pt) |
| WO (1) | WO2009061366A1 (pt) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009044740B4 (de) * | 2009-12-02 | 2019-02-21 | Haver & Boecker Ohg | Drahtgewebe |
| US9517596B2 (en) * | 2011-02-24 | 2016-12-13 | New Pig Corporation | Ground containment liners |
| US20120261329A1 (en) * | 2011-04-14 | 2012-10-18 | Eaton Corporation | Filter cartridge for use in a fluid filter housing and method of making same |
| ES2624751T3 (es) | 2011-04-22 | 2017-07-17 | James, Joseph., Jr. Manno | Método para tratamiento de desechos de perforación y residuos de combustión de carbón |
| CN103361882B (zh) * | 2013-05-29 | 2016-03-09 | 仪征易力土工合成材料有限公司 | 一种短纤针刺土工布生产工艺 |
| US9273440B1 (en) * | 2013-07-12 | 2016-03-01 | Infiltrator Systems Inc | Fabricating a drainage unit having a quilted exterior surface |
| CN104494244A (zh) * | 2014-12-31 | 2015-04-08 | 福建恒安集团有限公司 | 一种复合导流材料 |
| ITUA20163610A1 (it) * | 2016-05-19 | 2017-11-19 | Ufi Innovation Ct Srl | Struttura filtrante per la separazione dell'acqua da fluidi in ambito motoristico |
| CN106476041B (zh) * | 2016-11-23 | 2018-11-23 | 嵊州市森汇知识产权运营有限公司 | 磁芯抓取器中手柄的定位结构 |
| US11673117B2 (en) * | 2017-11-08 | 2023-06-13 | Huesker, Inc. | Geotextile sediment cap with active media |
| DE102020103812A1 (de) * | 2020-02-13 | 2021-08-19 | Geobrugg Ag | Schutzvorrichtung und Böschungssicherung |
| DE102024108744A1 (de) * | 2024-03-27 | 2025-10-02 | Huesker Synthetic Gmbh | Verbundmatte |
| DE102024114963A1 (de) * | 2024-05-28 | 2025-12-04 | Huesker Synthetic Gmbh | Geotextiler Lagenverbund |
Family Cites Families (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1143957A (en) | 1981-01-13 | 1983-04-05 | Bemalux Inc. | Waterproofing barrier |
| US4565727A (en) | 1983-09-12 | 1986-01-21 | American Cyanamid Co. | Non-woven activated carbon fabric |
| US4565468A (en) | 1983-10-24 | 1986-01-21 | Crawford Leslie A | Moisture impervient barrier and method for making same |
| US4787949A (en) | 1986-06-30 | 1988-11-29 | Facet Automotive Filter Co. | Method of manufacturing highly water absorbent pleated filter laminate |
| US5582865A (en) | 1988-12-12 | 1996-12-10 | Extraction Systems, Inc. | Non-woven filter composite |
| US5141794A (en) | 1989-11-03 | 1992-08-25 | At&T Bell Laboratories | Superabsorbent article having relatively thin liquid absorbent portion |
| US5237945A (en) | 1990-12-17 | 1993-08-24 | American Colloid Company | Water barrier formed from a clay-fiber mat |
| FI93430C (fi) * | 1992-05-07 | 1995-04-10 | Instrumentarium Oy | Laitteisto ja menetelmä eri kanavia pitkin virtaavien kaasujen sekoittamiseksi toisiinsa |
| US5753343A (en) | 1992-08-04 | 1998-05-19 | Minnesota Mining And Manufacturing Company | Corrugated nonwoven webs of polymeric microfiber |
| WO1994011556A1 (en) | 1992-11-18 | 1994-05-26 | Hoechst Celanese Corporation | Fibrous structure containing immobilized particulate matter and process therefor |
| US5302295A (en) * | 1992-12-29 | 1994-04-12 | Ywc Technologies | Method of sludge removal |
| US5434332A (en) | 1993-12-06 | 1995-07-18 | Cash; Alan B. | Process for removing hazardous, toxic, and radioactive wastes from soils, sediments, and debris |
| US5501753A (en) | 1994-09-01 | 1996-03-26 | Geosynthetics, Inc. | Stabilized fluid barrier member and method for making and using same |
| US5980996A (en) | 1994-12-13 | 1999-11-09 | Interface, Inc. | System and method for controlling water flow through ground with a geotextile comprising water absorbing material |
| US5759394A (en) | 1996-11-27 | 1998-06-02 | Alliedsignal Inc. | Elongate fiber filter mechanically securing solid adsorbent particles between adjacent multilobes |
| US6395190B1 (en) | 1996-02-26 | 2002-05-28 | Kx Industries, L.P. | Process employing thin-walled, extruded activated carbon filter |
| US5707735A (en) | 1996-03-18 | 1998-01-13 | Midkiff; David Grant | Multilobal conjugate fibers and fabrics |
| US5877096A (en) * | 1997-05-05 | 1999-03-02 | The Tensar Corporation | Non-woven needle-punched filter fabric |
| FR2779662B1 (fr) | 1998-06-10 | 2000-07-13 | Valeo | Dispositif de filtration combine susceptible de retenir des particules ainsi que des gaz |
| US6290637B1 (en) | 1999-07-16 | 2001-09-18 | University Of New Hampshire | Phosphate mineral-based reactive barrier containment system |
| US6517709B1 (en) | 2000-01-14 | 2003-02-11 | Troy Cardwell | Catch basin erosion containment filter assembly |
| US6386796B1 (en) | 2000-03-06 | 2002-05-14 | John H. Hull | Composite particles and methods for their application and implementation |
| US20020151241A1 (en) | 2001-04-11 | 2002-10-17 | Sheahan Thomas Clair | Reactive geocomposite for remediating contaminated sediments |
| US7012042B1 (en) | 2002-05-15 | 2006-03-14 | Growguard, Llc, Inc. | Methods and products to protect against root intrusion and plant and root growth |
| US7074174B2 (en) | 2002-05-15 | 2006-07-11 | Heritage Environment Services, Llc | Methods and apparatus for encapsulating hazardous debris |
| US6852813B2 (en) | 2002-09-25 | 2005-02-08 | Amcol International Corporation | Polymer-filled sheet material |
| US6783802B2 (en) | 2002-09-25 | 2004-08-31 | Amcol International Corporation | Hydraulic barrier |
| US6729807B1 (en) | 2002-11-07 | 2004-05-04 | Profile Products L.L.C. | Integral lofty polymer grid and fiber web matrix turf reinforcement mats |
| US7419593B2 (en) | 2003-11-19 | 2008-09-02 | Amcol International Corp. | Bioremediation mat and method of manufacture and use |
| US20050103707A1 (en) | 2003-11-19 | 2005-05-19 | Amcol International Corporation | Contaminant-reactive geocomposite mat and method of manufacture and use |
| US7717975B2 (en) * | 2005-02-16 | 2010-05-18 | Donaldson Company, Inc. | Reduced solidity web comprising fiber and fiber spacer or separation means |
| US7160465B2 (en) | 2005-04-21 | 2007-01-09 | The United States Of America As Represented By The Secretary Of The Navy | Materials for removing toxic metals from wastewater |
-
2007
- 2007-11-05 US US11/935,128 patent/US7870965B2/en active Active
-
2008
- 2008-10-31 BR BRPI0819198A patent/BRPI0819198A8/pt not_active Application Discontinuation
- 2008-10-31 EP EP08847853A patent/EP2207673A4/en not_active Withdrawn
- 2008-10-31 CA CA2704594A patent/CA2704594C/en active Active
- 2008-10-31 WO PCT/US2008/012344 patent/WO2009061366A1/en not_active Ceased
-
2011
- 2011-01-17 US US13/007,896 patent/US7981296B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2207673A4 (en) | 2011-02-16 |
| BRPI0819198A2 (pt) | 2015-05-05 |
| US20090114597A1 (en) | 2009-05-07 |
| EP2207673A1 (en) | 2010-07-21 |
| US20110108487A1 (en) | 2011-05-12 |
| CA2704594A1 (en) | 2009-05-14 |
| US7981296B2 (en) | 2011-07-19 |
| CA2704594C (en) | 2017-02-28 |
| US7870965B2 (en) | 2011-01-18 |
| WO2009061366A1 (en) | 2009-05-14 |
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| BR112012031046A2 (pt) | meio de extração em fase sólida |
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| B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
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