IT1263807B - Granuli sferici di silice porosa oppure di silicato poroso, procedimento per la loro produzione e loro impiego - Google Patents
Granuli sferici di silice porosa oppure di silicato poroso, procedimento per la loro produzione e loro impiegoInfo
- Publication number
- IT1263807B IT1263807B ITMI930104A ITMI930104A IT1263807B IT 1263807 B IT1263807 B IT 1263807B IT MI930104 A ITMI930104 A IT MI930104A IT MI930104 A ITMI930104 A IT MI930104A IT 1263807 B IT1263807 B IT 1263807B
- Authority
- IT
- Italy
- Prior art keywords
- porous
- granules
- resins
- spherical
- silica
- Prior art date
Links
Classifications
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- 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
- C01B33/124—Preparation of adsorbing porous silica not in gel form and not finely divided, i.e. silicon skeletons, by acidic treatment of siliceous materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5218—Macromolecular coatings characterised by inorganic additives, e.g. pigments, clays
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0241—Containing particulates characterized by their shape and/or structure
- A61K8/025—Explicitly spheroidal or spherical shape
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0241—Containing particulates characterized by their shape and/or structure
- A61K8/0279—Porous; Hollow
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/25—Silicon; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
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- 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
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
- C01B33/187—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates
- C01B33/193—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates of aqueous solutions of silicates
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- 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
- C01B33/20—Silicates
- C01B33/24—Alkaline-earth metal silicates
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/50—Agglomerated particles
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/11—Powder tap density
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/14—Pore volume
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/19—Oil-absorption capacity, e.g. DBP values
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
- C01P2006/82—Compositional purity water content
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- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/256—Heavy metal or aluminum or compound thereof
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- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/258—Alkali metal or alkaline earth metal or compound thereof
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- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/259—Silicic material
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Inorganic Chemistry (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dispersion Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Silicon Compounds (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
Una silice porosa e sferica viene recuperata con rese elevate da un prodotto neutralizzato di un silicato alcalino ottenuto usando un polimero tipo acrilammide come agente che fa aumentare la coagulazione e la silice di cui sopra viene fatta reagire come precursore con un composto di un metallo del Gruppo II della tabella periodica in un mezzo acquoso per ottenere granuli di silice oppure di silicato amorfi oppure fini, laminari e cristallini, porosi e sferici aventi un elevato grado di vera sfericità, una distribuzione delle dimensioni dei grani simmetrica ed un indice di rifrazione compreso tra 1,4 e 1,7. I granuli porosi e sferici hanno un diametro dei grani primari compreso tra 0,3 e 30 um osservato attraverso un microscopio elettronico, hanno un peso specifico apparente compreso tra 0,05 e 0,5 g/ml e vengono ottenuti a basso costo, con rese elevate e, pertanto, possono venire usati come carica per diverse vernici e diverse resine. In particolare, i granuli si disperdono in modo eccellente nelle resine, hanno un indice di rifrazione prossimo a quello delle resine, non vengono frantumati durante l'impasto con resine oppure durante un'estrusione e non danneggiano l'apparecchiatura. Le pellicole ottenute usando questi granuli presentano una trasparenza molto eccellente, proprietà anti-bloccaggio e resistenza alla formazione di segni. Inoltre, i granuli tipo fillosilicato di zinco porosi e sferici aventi piccole dimensioni e distribuzione di dimensioni simmetriche, sono eccellenti per ciò che riguarda le loro caratteristiche di eliminazione degli odori e le loro caratteristiche di controllo della traspirazione.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3291592A JPH085658B2 (ja) | 1992-01-24 | 1992-01-24 | 粒状非晶質シリカの製造方法及び非晶質シリカ球状粒子 |
JP35049392A JP3342905B2 (ja) | 1992-12-03 | 1992-12-03 | 多孔質球状ケイ酸塩粒子、その製造方法及びその用途 |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI930104A0 ITMI930104A0 (it) | 1993-01-22 |
ITMI930104A1 ITMI930104A1 (it) | 1994-07-22 |
IT1263807B true IT1263807B (it) | 1996-09-03 |
Family
ID=26371520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI930104A IT1263807B (it) | 1992-01-24 | 1993-01-22 | Granuli sferici di silice porosa oppure di silicato poroso, procedimento per la loro produzione e loro impiego |
Country Status (10)
Country | Link |
---|---|
US (1) | US5342876A (it) |
KR (1) | KR0146381B1 (it) |
BE (1) | BE1007982A4 (it) |
CA (1) | CA2087911C (it) |
CH (1) | CH688376A5 (it) |
DE (1) | DE4301945A1 (it) |
FR (1) | FR2687658B1 (it) |
GB (1) | GB2263903B (it) |
IT (1) | IT1263807B (it) |
NL (1) | NL194672C (it) |
Families Citing this family (73)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3400548B2 (ja) * | 1993-06-29 | 2003-04-28 | 三菱レイヨン株式会社 | 高純度球状シリカの製造方法 |
CN1092511C (zh) * | 1993-10-02 | 2002-10-16 | 普罗格特和甘布尔公司 | 化妆用美容组合物 |
DE69424137T2 (de) * | 1993-12-22 | 2000-09-21 | Sumitomo Chemical Co | Polypropylenzusammensetzung und daraus hergestellter gedehnter Film |
JP3444670B2 (ja) * | 1993-12-28 | 2003-09-08 | 水澤化学工業株式会社 | 粒状非晶質シリカの製造方法 |
EP0664317A1 (en) * | 1994-01-19 | 1995-07-26 | Du Pont De Nemours International S.A. | Deodorized thermoplastics |
US5714245A (en) * | 1994-07-18 | 1998-02-03 | Arkwright, Incorporated | Anti-blocking clear ink receiving sheet |
DE4433166A1 (de) * | 1994-09-16 | 1996-03-21 | Schulman A Plastics | Masterbatch zur Herstellung von biaxial orientierten Polyalkylenfolien, Verfahren zu seiner Herstellung und seine Verwendung |
US5827632A (en) * | 1994-12-05 | 1998-10-27 | Canon Kabushiki Kaisha | Toner for developing electrostatic image containing hydrophobized inorganic fine powder |
JP3032696B2 (ja) * | 1995-03-10 | 2000-04-17 | 日本製紙株式会社 | インクジェット記録用紙 |
DE19516253A1 (de) * | 1995-04-26 | 1996-10-31 | Grace Gmbh | Mattierungsmittel auf Basis von aggregiertem Siliciumdioxid mit verbesserter Effizienz |
EP0744125B1 (en) * | 1995-05-25 | 1999-07-14 | Mizusawa Industrial Chemicals, Ltd. | Iodo-complex and its use |
DE19639016A1 (de) * | 1996-09-23 | 1998-03-26 | Basf Ag | Mesoporöses Siliciumdioxid, Verfahren zu seiner Herstellung und seiner Verwendung |
US5858909A (en) * | 1996-09-27 | 1999-01-12 | W. R. Grace & Co.-Conn. | Siliceous oxide comprising an alkaline constituent |
FR2762611B1 (fr) * | 1997-04-29 | 1999-06-11 | Atochem Elf Sa | Silice poreuse modifiee, son procede de fabrication et son utilisation dans les peintures et comme vecteur de pigments et colorants |
DE19726670A1 (de) * | 1997-06-23 | 1998-12-24 | Basf Ag | Verfahren zur Addition von Hydroxylgruppen enthaltenden Verbindungen an Alkine oder Allene |
US6544641B2 (en) * | 1997-06-23 | 2003-04-08 | Lintec Corporation | Silicate-containing sheet |
JP3914609B2 (ja) * | 1997-06-23 | 2007-05-16 | リンテック株式会社 | ケイ酸塩含有シート |
DE19726668A1 (de) * | 1997-06-23 | 1998-12-24 | Basf Ag | Verfahren zur Addition von Hydroxylgruppen enthaltenden Verbindungen an Alkine oder Allene |
US6090359A (en) * | 1998-02-17 | 2000-07-18 | The Dow Chemical Company | Process for hydrogenating aromatic polymers |
US6264861B1 (en) * | 1998-08-05 | 2001-07-24 | Xeikon Nv | Method for producing rounded polymeric particles |
US6447693B1 (en) | 1998-10-21 | 2002-09-10 | W. R. Grace & Co.-Conn. | Slurries of abrasive inorganic oxide particles and method for polishing copper containing surfaces |
EP1155092A1 (en) | 1998-10-21 | 2001-11-21 | W.R. Grace & Co.-Conn. | Slurries of abrasive inorganic oxide particles and method for adjusting the abrasiveness of the particles |
KR100447477B1 (ko) * | 1999-12-20 | 2004-09-07 | 간사이 페인트 가부시키가이샤 | 도료 조성물 및 이 도료 조성물로 형성된 도막을 갖는도장 금속판 |
DE10104341A1 (de) * | 2001-02-01 | 2002-08-08 | Colfirmit Rajasil Gmbh & Co Kg | Beschichtung mit adsorbierenden Eigenschaften für Innenraumflächen |
GB0103553D0 (en) | 2001-02-14 | 2001-03-28 | Edmunds John M | Substrate treatment |
WO2002085785A1 (fr) * | 2001-04-17 | 2002-10-31 | Tokuyama Corporation | Procede permettant de produire un materiau poreux anorganique |
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US7977103B2 (en) | 2006-04-20 | 2011-07-12 | Kimberly-Clark Worldwide, Inc. | Method for detecting the onset of ovulation |
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-
1993
- 1993-01-22 IT ITMI930104A patent/IT1263807B/it active IP Right Grant
- 1993-01-22 CA CA002087911A patent/CA2087911C/en not_active Expired - Fee Related
- 1993-01-25 KR KR1019930000955A patent/KR0146381B1/ko not_active IP Right Cessation
- 1993-01-25 DE DE4301945A patent/DE4301945A1/de not_active Ceased
- 1993-01-25 GB GB9301399A patent/GB2263903B/en not_active Expired - Fee Related
- 1993-01-25 FR FR9301004A patent/FR2687658B1/fr not_active Expired - Fee Related
- 1993-01-25 CH CH00210/93A patent/CH688376A5/de not_active IP Right Cessation
- 1993-01-25 BE BE9300072A patent/BE1007982A4/fr active
- 1993-01-25 NL NL9300139A patent/NL194672C/nl not_active IP Right Cessation
- 1993-01-25 US US08/008,545 patent/US5342876A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR930016344A (ko) | 1993-08-26 |
FR2687658A1 (fr) | 1993-08-27 |
GB9301399D0 (en) | 1993-03-17 |
CA2087911C (en) | 1999-06-29 |
CH688376A5 (de) | 1997-08-29 |
GB2263903B (en) | 1995-08-09 |
KR0146381B1 (ko) | 1998-08-17 |
NL194672B (nl) | 2002-07-01 |
ITMI930104A1 (it) | 1994-07-22 |
FR2687658B1 (fr) | 1996-05-31 |
NL194672C (nl) | 2002-11-04 |
BE1007982A4 (fr) | 1995-12-05 |
CA2087911A1 (en) | 1993-07-25 |
US5342876A (en) | 1994-08-30 |
GB2263903A (en) | 1993-08-11 |
DE4301945A1 (it) | 1993-08-05 |
ITMI930104A0 (it) | 1993-01-22 |
NL9300139A (nl) | 1993-08-16 |
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