IT1260596B - Corpi a pori aperti, stabili nella dimensione. - Google Patents

Corpi a pori aperti, stabili nella dimensione.

Info

Publication number
IT1260596B
IT1260596B ITTO930107A ITTO930107A IT1260596B IT 1260596 B IT1260596 B IT 1260596B IT TO930107 A ITTO930107 A IT TO930107A IT TO930107 A ITTO930107 A IT TO930107A IT 1260596 B IT1260596 B IT 1260596B
Authority
IT
Italy
Prior art keywords
pores
open
particles
pore
air
Prior art date
Application number
ITTO930107A
Other languages
English (en)
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 filed Critical
Publication of ITTO930107A0 publication Critical patent/ITTO930107A0/it
Publication of ITTO930107A1 publication Critical patent/ITTO930107A1/it
Application granted granted Critical
Publication of IT1260596B publication Critical patent/IT1260596B/it

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2095—Tabletting processes
    • 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
    • B01D39/1638—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate
    • B01D39/1653—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin
    • B01D39/1661—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin sintered or bonded
    • 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
    • B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/202—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising elimination of a solid or a liquid ingredient
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • B60H3/0658—Filter elements specially adapted for their arrangement in vehicles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/2031—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, polyethylene oxide, poloxamers
    • A61K9/204—Polyesters, e.g. poly(lactide-co-glycolide)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Materials Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Filtering Materials (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Il corpo a pori aperti, è degradabile e possiede i referenza un gran numero di pori concavi (7), collegati in genere, tramite tanti passaggi brevi (6), ai pori affiancati (7), oppure al lato esterno del corpo (4). La larghezza dei pori ammonta a ca. 20-60? e la larghezza dei passaggi (A) a circa 10-50?. Durante il filtraggio di aria carica di particelle, l'aria entra in modo vorticoso nei pori (7), depositando le particelle lungo le pareti o nella profondità dei pori (7). Il corpo (4) può consistere in un materiale plastico degradabile (5), di preferenza biodegradabile. Il corpo di questo tipo rende possibile un'autoseparazione delle particelle filtrate senza una particolare tecnica od un dispendio energetico. Il corpo secondo l'invenzione è adatto in special modo per la fabbricazione di filtri montati per filtrare l'aria di alimentazione in autovetture.
ITTO930107A 1992-02-25 1993-02-19 Corpi a pori aperti, stabili nella dimensione. IT1260596B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH570/92A CH684273A5 (de) 1992-02-25 1992-02-25 Offenporiger dimensionsstabiler Körper.

Publications (3)

Publication Number Publication Date
ITTO930107A0 ITTO930107A0 (it) 1993-02-19
ITTO930107A1 ITTO930107A1 (it) 1994-08-19
IT1260596B true IT1260596B (it) 1996-04-22

Family

ID=4190065

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO930107A IT1260596B (it) 1992-02-25 1993-02-19 Corpi a pori aperti, stabili nella dimensione.

Country Status (4)

Country Link
CH (1) CH684273A5 (it)
DE (1) DE4304427A1 (it)
FR (1) FR2687588A1 (it)
IT (1) IT1260596B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521656A1 (de) * 1995-06-14 1996-12-19 New Ways Of Analytics Gmbh Träger für einen Katalysator, Katalysatoreneinrichtung und Verfahren zu deren Herstellung
DE19651734C2 (de) * 1996-12-12 1999-05-12 Dds Drug Delivery Service Ges Zubereitung in Form eines Polymer-Hilfsstoff-Compounds und/oder eines Polymer-Wirkstoff-Compounds und Verfahren zu dessen Herstellung sowie dessen Verwendung zur Herstellung von Tabletten und/oder anderen größeren Matrixeinheiten
DE10200387B4 (de) * 2002-01-08 2009-11-26 Translumina Gmbh Stent

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051320A (en) * 1964-01-13 1966-12-14 W.R. Grace & Co. Micro-porous polyethylene and a process for the manufacture thereof
FR2237667A1 (en) * 1973-07-18 1975-02-14 Equip Automobile Cie Fse Coating polyurethane foam air filters with adhesive bound fibres - to increase dust retention by e.g. automobile filters
JPS618107A (ja) * 1984-06-22 1986-01-14 Mitsubishi Rayon Co Ltd 微多孔質膜の製造法
US4702917A (en) * 1985-11-18 1987-10-27 Research Triangle Institute Porous bioabsorbable polyesters
DE3644588C1 (de) * 1986-12-27 1988-03-10 Ethicon Gmbh Implantat und Verfahren zu seiner Herstellung
NL8703115A (nl) * 1987-12-23 1989-07-17 Groningen Science Park Biodegradeerbare polyurethanen, daarop gebaseerde voortbrengselen, en polyesterpolyol prepolymeren.
JPH02261802A (ja) * 1989-04-03 1990-10-24 Sumitomo Cement Co Ltd 多孔質キチン材料の製造方法
NL9001642A (nl) * 1990-07-19 1992-02-17 Stamicarbon Werkwijze voor het produceren van een implantaat met biporeuze structuur.

Also Published As

Publication number Publication date
CH684273A5 (de) 1994-08-15
ITTO930107A1 (it) 1994-08-19
ITTO930107A0 (it) 1993-02-19
DE4304427A1 (de) 1993-10-21
FR2687588A1 (fr) 1993-08-27

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Legal Events

Date Code Title Description
0001 Granted