IT1260595B - BODY WITH OPEN PORES AND STABLE IN THE DIMENSION. - Google Patents

BODY WITH OPEN PORES AND STABLE IN THE DIMENSION.

Info

Publication number
IT1260595B
IT1260595B ITTO930106A ITTO930106A IT1260595B IT 1260595 B IT1260595 B IT 1260595B IT TO930106 A ITTO930106 A IT TO930106A IT TO930106 A ITTO930106 A IT TO930106A IT 1260595 B IT1260595 B IT 1260595B
Authority
IT
Italy
Prior art keywords
pores
particles
approx
filtering
concave
Prior art date
Application number
ITTO930106A
Other languages
Italian (it)
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 ITTO930106A0 publication Critical patent/ITTO930106A0/en
Publication of ITTO930106A1 publication Critical patent/ITTO930106A1/en
Application granted granted Critical
Publication of IT1260595B publication Critical patent/IT1260595B/en

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Filtering Materials (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Il corpo a porosità concava possiede una molteplicità di pori concavi (7), collegati in genere tramite brevi passaggi (6) ai pori affiancati (7) o al lato esterno del corpo (4). La larghezza dei pori ammonta a ca. 20-60? e la larghezza dei passaggi (A) a ca. 10-50?. Durante il filtraggio di aria carica di particelle, l'aria entra in modo vorticoso nei pori (7) e le particelle si depositano lungo le pareti e nella profondità dei pori (7). Il corpo (4) può consistere in un materiale plastico degradabile, di preferenza biodegradabile (5). Un corpo di questo tipo rende possibile l'autoseparazione delle particelle filtrate senza grande dispendio energetico-tecnico. Il corpo secondo l'invenzione è adatto in special modo per la fabbricazione di filtri per filtrare l'aria di alimentazione in autoveicoli.(Fig. 2).The concave porosity body has a multiplicity of concave pores (7), generally connected by short passages (6) to the pores side by side (7) or to the external side of the body (4). The pore width amounts to approx. 20-60? and the width of the passages (A) at approx. 10-50 ?. During the filtering of air loaded with particles, the air swirls into the pores (7) and the particles settle along the walls and in the depth of the pores (7). The body (4) can consist of a degradable plastic material, preferably biodegradable (5). A body of this type makes it possible to self-separate the filtered particles without great energy-technical expenditure. The body according to the invention is especially suitable for the manufacture of filters for filtering the supply air in motor vehicles (Fig. 2).

ITTO930106A 1992-02-25 1993-02-19 BODY WITH OPEN PORES AND STABLE IN THE DIMENSION. IT1260595B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH569/92A CH683263A5 (en) 1992-02-25 1992-02-25 Porous dimensionally stable body.

Publications (3)

Publication Number Publication Date
ITTO930106A0 ITTO930106A0 (en) 1993-02-19
ITTO930106A1 ITTO930106A1 (en) 1994-08-19
IT1260595B true IT1260595B (en) 1996-04-22

Family

ID=4190042

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO930106A IT1260595B (en) 1992-02-25 1993-02-19 BODY WITH OPEN PORES AND STABLE IN THE DIMENSION.

Country Status (4)

Country Link
CH (1) CH683263A5 (en)
DE (1) DE4304085A1 (en)
FR (1) FR2687587A1 (en)
IT (1) IT1260595B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0847227B1 (en) 1998-03-02 2003-08-27 Phonak Ag Hearing aid

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB718390A (en) * 1951-05-16 1954-11-10 Eletric Storage Battery Compan Improvements relating to microporous material
GB1545057A (en) * 1976-05-03 1979-05-02 Emi Ltd Fluid filter element supports
DE3309855C2 (en) * 1983-03-18 1987-03-12 Ferdinand Dr. 8014 Neubiberg Quella Process for producing open-cell plastic foam
US4705809A (en) * 1986-07-07 1987-11-10 The Dow Chemical Company Process for preparing a porous polymer article
NL9001642A (en) * 1990-07-19 1992-02-17 Stamicarbon Material prodn. for implant for treating damaged tissue - by shaping mixt. of biodegradable polymer, solvent, granulate and solvent for granulate, removing solvents and washing out granulate

Also Published As

Publication number Publication date
DE4304085A1 (en) 1993-08-26
ITTO930106A1 (en) 1994-08-19
CH683263A5 (en) 1994-02-15
FR2687587A1 (en) 1993-08-27
ITTO930106A0 (en) 1993-02-19

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Legal Events

Date Code Title Description
0001 Granted