DE69008003D1 - Dünne Kieselsäureschuppen und Verfahren zu ihrer Herstellung. - Google Patents

Dünne Kieselsäureschuppen und Verfahren zu ihrer Herstellung.

Info

Publication number
DE69008003D1
DE69008003D1 DE69008003T DE69008003T DE69008003D1 DE 69008003 D1 DE69008003 D1 DE 69008003D1 DE 69008003 T DE69008003 T DE 69008003T DE 69008003 T DE69008003 T DE 69008003T DE 69008003 D1 DE69008003 D1 DE 69008003D1
Authority
DE
Germany
Prior art keywords
manufacture
thin silica
silica scales
scales
thin
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.)
Expired - Fee Related
Application number
DE69008003T
Other languages
English (en)
Other versions
DE69008003T2 (de
Inventor
David K Douden
Thomas J Scanlan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of DE69008003D1 publication Critical patent/DE69008003D1/de
Application granted granted Critical
Publication of DE69008003T2 publication Critical patent/DE69008003T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • 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
    • B01J20/2803—Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
    • 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
    • B01J20/28—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
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • 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
    • 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
    • B01J20/281—Sorbents specially adapted for preparative, analytical or investigative chromatography
    • B01J20/291—Gel sorbents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/152—Preparation of hydrogels
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • 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
    • B01J2220/54—Sorbents specially adapted for analytical or investigative chromatography
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S435/00—Chemistry: molecular biology and microbiology
    • Y10S435/803—Physical recovery methods, e.g. chromatography, grinding
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249954—With chemically effective material or specified gas other than air, N, or carbon dioxide in void-containing component
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249962—Void-containing component has a continuous matrix of fibers only [e.g., porous paper, etc.]
    • Y10T428/249964—Fibers of defined composition
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249986—Void-containing component contains also a solid fiber or solid particle
DE69008003T 1989-02-23 1990-02-02 Dünne Kieselsäureschuppen und Verfahren zu ihrer Herstellung. Expired - Fee Related DE69008003T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/314,752 US4971697A (en) 1989-02-23 1989-02-23 Thin silica flakes and method of making

Publications (2)

Publication Number Publication Date
DE69008003D1 true DE69008003D1 (de) 1994-05-19
DE69008003T2 DE69008003T2 (de) 1994-10-20

Family

ID=23221284

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69008003T Expired - Fee Related DE69008003T2 (de) 1989-02-23 1990-02-02 Dünne Kieselsäureschuppen und Verfahren zu ihrer Herstellung.

Country Status (7)

Country Link
US (1) US4971697A (de)
EP (1) EP0384596B1 (de)
JP (1) JPH02263717A (de)
KR (1) KR900012837A (de)
BR (1) BR9000787A (de)
CA (1) CA2008449A1 (de)
DE (1) DE69008003T2 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416156A (en) * 1988-10-14 1995-05-16 Revlon Consumer Products Corporation Surface coating compositions containing fibrillated polymer
US5071610A (en) * 1990-02-23 1991-12-10 Minnesota Mining And Manufacturing Company Method of making a controlled pore composite polytetrafluoroethylene
US5147539A (en) * 1990-02-23 1992-09-15 Minnesota Mining And Manufacturing Company Controlled pore composite polytetrafluoroethylene article
US5207915A (en) * 1990-02-23 1993-05-04 Minnesota Mining And Manufacturing Company Separation method using controlled pore composite polytetrafluoroethylene article
USRE36811E (en) * 1991-02-07 2000-08-08 Minnesota Mining And Manufacturing Co. Solid phase extraction medium
CA2059398C (en) * 1991-02-07 1999-05-25 Craig G. Markell Solid phase extraction medium
US5238621A (en) * 1991-06-28 1993-08-24 Minnesota Mining And Manufacturing Company Method of controlling porosity in a composite article
US5248428A (en) * 1991-06-28 1993-09-28 Minnesota Mining And Manufacturing Company Article for separations and purifications and method of controlling porosity therein
US5328758A (en) * 1991-10-11 1994-07-12 Minnesota Mining And Manufacturing Company Particle-loaded nonwoven fibrous article for separations and purifications
US5328756A (en) * 1992-01-31 1994-07-12 Minnesota Mining And Manufacturing Company Temperature sensitive circuit breaking element
US5209967A (en) * 1992-01-31 1993-05-11 Minnesota Mining And Manufacturing Company Pressure sensitive membrane and method therefor
US5354603A (en) * 1993-01-15 1994-10-11 Minnesota Mining And Manufacturing Company Antifouling/anticorrosive composite marine structure
US5643447A (en) * 1993-04-06 1997-07-01 Yissum Research Developement Company Of The Hebrew University Of Jerusalem Thin layer chromatographic plates
US6207251B1 (en) 1994-01-10 2001-03-27 Minnesota Mining And Manufacturing Company Reinforced particle-loaded fibrillated PTFE web
AU2198395A (en) * 1994-05-05 1995-11-29 Minnesota Mining And Manufacturing Company Chemically modified solid phase extraction particles and articles containing same
US5833860A (en) * 1995-08-28 1998-11-10 Millipore Investment Holdings Limited Centrifugal adsorptive sample preparation device and method
US6107244A (en) * 1997-10-15 2000-08-22 Nashua Corporation Verification methods employing thermally--imageable substrates
DE10252693B4 (de) * 2002-11-13 2007-03-29 Trovotech Gmbh Verfahren zur Herstellung von plättchenförmigen sowie unregelmäßigen, 3-dimensional oder regelmäßig geformten Glaspartikeln
DE102004049203A1 (de) * 2004-10-08 2006-04-20 Merck Patent Gmbh Effektpigmente auf Basis dünner SiO2-Plättchen
KR20080003789A (ko) * 2005-03-09 2008-01-08 더 리전츠 오브 더 유니버시티 오브 캘리포니아 나노복합체막 및 이의 제조 및 사용 방법
JP2010508140A (ja) * 2006-10-27 2010-03-18 ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア 逆浸透薄膜のためのミクロおよびナノ複合支持体構造
JP2010540215A (ja) * 2007-09-21 2010-12-24 ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア ナノ複合膜ならびにその作製および使用方法
US8567612B2 (en) 2008-04-15 2013-10-29 Nanoh2O, Inc. Hybrid TFC RO membranes with nitrogen additives
US8177978B2 (en) 2008-04-15 2012-05-15 Nanoh20, Inc. Reverse osmosis membranes
WO2012064939A2 (en) 2010-11-10 2012-05-18 Nanoh2O, Inc. Improved hybrid tfc ro membranes with non-metallic additives
US9861940B2 (en) 2015-08-31 2018-01-09 Lg Baboh2O, Inc. Additives for salt rejection enhancement of a membrane
US9737859B2 (en) 2016-01-11 2017-08-22 Lg Nanoh2O, Inc. Process for improved water flux through a TFC membrane
US10155203B2 (en) 2016-03-03 2018-12-18 Lg Nanoh2O, Inc. Methods of enhancing water flux of a TFC membrane using oxidizing and reducing agents
CN111254755B (zh) * 2020-01-17 2021-11-02 西部宝德科技股份有限公司 一种陶瓷纤维多孔管的离心辅助真空抽滤成型系统

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO129461B (de) * 1970-03-18 1974-04-16 Tampella Oy Ab
US3681017A (en) * 1970-07-06 1972-08-01 Grace W R & Co Platelet silica,its production and uses
US3795524A (en) * 1971-03-01 1974-03-05 Minnesota Mining & Mfg Aluminum borate and aluminum borosilicate articles
US3796777A (en) * 1972-02-03 1974-03-12 Philadelphia Quartz Co Method of making hollow spheres by spray drying
US3794503A (en) * 1972-05-12 1974-02-26 Philadelphia Quartz Co Hollow spheres consisting of alkali metal silicate and a polysalt
JPS5248626B2 (de) * 1972-07-05 1977-12-10
US3960583A (en) * 1974-05-02 1976-06-01 Philadelphia Quartz Company Method of preparing modified hollow, largely spherical particles by spray drying
US4349456A (en) * 1976-04-22 1982-09-14 Minnesota Mining And Manufacturing Company Non-vitreous ceramic metal oxide microcapsules and process for making same
US4153661A (en) * 1977-08-25 1979-05-08 Minnesota Mining And Manufacturing Company Method of making polytetrafluoroethylene composite sheet
US4235742A (en) * 1979-03-09 1980-11-25 Pq Corporation Base for defoaming compositions
JPS5628640A (en) * 1979-08-18 1981-03-20 Tokuyama Soda Co Ltd Molded product for absorbing liquid
JPS5631439A (en) * 1979-08-18 1981-03-30 Tokuyama Soda Co Ltd Desiccant
US4373519A (en) * 1981-06-26 1983-02-15 Minnesota Mining And Manufacturing Company Composite wound dressing
US4460642A (en) * 1981-06-26 1984-07-17 Minnesota Mining And Manufacturing Company Water-swellable composite sheet of microfibers of PTFE and hydrophilic absorptive particles
US4565663A (en) * 1981-06-26 1986-01-21 Minnesota Mining And Manufacturing Company Method for making water-swellable composite sheet
JPS6134032A (ja) * 1984-07-25 1986-02-18 Daikin Ind Ltd フツ素樹脂被覆用組成物
EP0240952A3 (de) * 1986-04-10 1989-02-08 Sumitomo Chemical Company, Limited Verfahren zur Erzeugung eines schuppenförmigen Materials
US4810381A (en) * 1987-12-28 1989-03-07 Minnesota Mining And Manufacturing Company Composite chromatographic article

Also Published As

Publication number Publication date
EP0384596B1 (de) 1994-04-13
KR900012837A (ko) 1990-09-01
EP0384596A3 (de) 1992-01-22
DE69008003T2 (de) 1994-10-20
US4971697A (en) 1990-11-20
EP0384596A2 (de) 1990-08-29
BR9000787A (pt) 1991-01-22
JPH02263717A (ja) 1990-10-26
CA2008449A1 (en) 1990-08-23

Similar Documents

Publication Publication Date Title
DE69008003T2 (de) Dünne Kieselsäureschuppen und Verfahren zu ihrer Herstellung.
DE69008327D1 (de) Kieselsäureteilchen und Verfahren zu ihrer Herstellung.
DE3884331D1 (de) Elastische Fixierwalze und Verfahren zu ihrer Herstellung.
DE68910654T2 (de) Beschichtungszusammensetzung und Verfahren zu ihrer Herstellung.
DE68919096D1 (de) Polyurethan-Basislinse und Verfahren zu ihrer Herstellung.
DE68921548T2 (de) Poröse Strukture und Verfahren zu ihrer Herstellung.
DE69004764T2 (de) Harzzusammensetzung und Verfahren zu ihrer Herstellung.
DE69002661T2 (de) Emaillierfähige Stahlbleche und Verfahren zu ihrer Herstellung.
DE69026128T2 (de) Gesinterte Polybenzimidazol-Polyarylenketonartikel und Verfahren zu ihrer Herstellung
DE69011162T2 (de) Siloxanharze und Verfahren zu ihrer Herstellung.
DE3854262T2 (de) Harzzusammensetzung und Verfahren zu ihrer Herstellung.
DE68922716D1 (de) Elektrophoreseplatte und Verfahren zu ihrer Herstellung.
DE3851192T2 (de) Hologon und Verfahren zu seiner Herstellung.
DE69016882D1 (de) Entwickler und Verfahren zu seiner Herstellung.
DE69007346T3 (de) Überglasuren für Töpferware und Verfahren zu ihrer Herstellung.
DE69012655T2 (de) Alpha-(omega-cyanoalkanoyl)-gamma-butyrolactone und Verfahren zu ihrer Herstellung.
DE69013089D1 (de) Lautsprechermembran und Verfahren zu ihrer Herstellung.
DE69017091T2 (de) Cyclomalto-oligosaccharidderivate und Verfahren zu ihrer Herstellung.
DE3880490T2 (de) Perfluoramino-oxaziridine und Verfahren zu ihrer Herstellung.
AT399879B (de) Dihydro-pyrimido-thiazin-derivate und verfahren zu ihrer herstellung
DE69112377D1 (de) Mikroteilige Aluminosilikaten und Verfahren zu ihrer Herstellung.
DE68914500T2 (de) Alkylarylsulfone und Verfahren zu ihrer Herstellung.
DE3783285T2 (de) Indikatorzusammensetzung und verfahren zu ihrer herstellung.
ATE79117T1 (de) 7-oxoprostacyclinderivate und verfahren zu ihrer herstellung.
ATE74122T1 (de) Aralkylester und verfahren zu ihrer herstellung.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee