IT1107799B - Perfezionamento nelle fibre cave di acetato di cellulosa per reni artificiali e procedimento per la loro produzione - Google Patents

Perfezionamento nelle fibre cave di acetato di cellulosa per reni artificiali e procedimento per la loro produzione

Info

Publication number
IT1107799B
IT1107799B IT50125/78A IT5012578A IT1107799B IT 1107799 B IT1107799 B IT 1107799B IT 50125/78 A IT50125/78 A IT 50125/78A IT 5012578 A IT5012578 A IT 5012578A IT 1107799 B IT1107799 B IT 1107799B
Authority
IT
Italy
Prior art keywords
cellulose acetate
hollow fibers
quarries
artificial kidneys
improvement
Prior art date
Application number
IT50125/78A
Other languages
English (en)
Italian (it)
Other versions
IT7850125A0 (it
Original Assignee
Cordis Dow Corp
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 Cordis Dow Corp filed Critical Cordis Dow Corp
Publication of IT7850125A0 publication Critical patent/IT7850125A0/it
Application granted granted Critical
Publication of IT1107799B publication Critical patent/IT1107799B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/08—Polysaccharides
    • B01D71/12—Cellulose derivatives
    • B01D71/14—Esters of organic acids
    • B01D71/16—Cellulose acetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
    • B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08—Hollow fibre membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08—Hollow fibre membranes
    • B01D69/081—Hollow fibre membranes characterised by the fibre diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08—Hollow fibre membranes
    • B01D69/087—Details relating to the spinning process
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/20—Specific permeability or cut-off range

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Artificial Filaments (AREA)
  • External Artificial Organs (AREA)
IT50125/78A 1977-07-05 1978-06-30 Perfezionamento nelle fibre cave di acetato di cellulosa per reni artificiali e procedimento per la loro produzione IT1107799B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81292977A 1977-07-05 1977-07-05

Publications (2)

Publication Number Publication Date
IT7850125A0 IT7850125A0 (it) 1978-06-30
IT1107799B true IT1107799B (it) 1985-11-25

Family

ID=25211003

Family Applications (1)

Application Number Title Priority Date Filing Date
IT50125/78A IT1107799B (it) 1977-07-05 1978-06-30 Perfezionamento nelle fibre cave di acetato di cellulosa per reni artificiali e procedimento per la loro produzione

Country Status (18)

Country Link
JP (2) JPS5442420A (ja)
AT (1) AT364899B (ja)
AU (1) AU519458B2 (ja)
BE (1) BE868708A (ja)
BR (1) BR7804325A (ja)
CA (1) CA1107020A (ja)
CH (1) CH632536A5 (ja)
DD (1) DD137950A5 (ja)
DE (1) DE2827100C2 (ja)
DK (1) DK149600C (ja)
FR (1) FR2396780A1 (ja)
GB (1) GB2000722B (ja)
IT (1) IT1107799B (ja)
MX (1) MX153159A (ja)
NL (1) NL7807225A (ja)
NO (1) NO147979C (ja)
NZ (1) NZ187610A (ja)
SE (1) SE428221B (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1153171A (en) * 1979-12-17 1983-09-06 David T. Chen Cellulose semipermeable hollow fibers and method for making same
JPS5949806A (ja) * 1982-09-13 1984-03-22 Teijin Ltd セルロースエステル系中空糸状分離膜
JPS59199807A (ja) * 1983-04-20 1984-11-13 Teijin Ltd 選択透過性セルロ−スエステル系中空繊維の製造方法
JPS59211459A (ja) * 1983-05-17 1984-11-30 帝人株式会社 血液処理器の滅菌方法
JPS605202A (ja) * 1983-06-21 1985-01-11 Teijin Ltd 多孔性セルロ−スエステル系中空繊維およびその製造方法
CA1272139C (en) * 1984-11-16 1990-07-31 FLUID SEPARATOR, HOLLOW FIBERS USED FOR ITS MANUFACTURE, AND PREPARATION OF SAID HOLLOW FIBERS
JPS6343669A (ja) * 1986-08-08 1988-02-24 帝人株式会社 血液処理器の製造方法
TW593807B (en) 2001-06-26 2004-06-21 Toray Industries The thermoplastic cellulose derivative composition and the fiber thereof
ES2808665T3 (es) * 2012-02-24 2021-03-01 Toyo Boseki Membrana semipermeable de triacetato de celulosa de tipo de fibra hueca, proceso para fabricar la misma, módulo y proceso de tratamiento de agua
WO2016052675A1 (ja) * 2014-09-30 2016-04-07 東レ株式会社 分離膜
DE102020102096B4 (de) 2020-01-29 2023-03-23 Cerdia International GmbH Celluloseacetathaltiger faserstoff für ein nonwoven-produkt, nonwoven-produkt mit einem solchen faserstoff und verfahren zur herstellung eines solchen faserstoffs

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE342820A (ja) * 1925-09-17
US3423491A (en) * 1964-09-02 1969-01-21 Dow Chemical Co Permselective hollow fibers and method of making
FR1456757A (fr) * 1964-09-02 1966-07-08 Dow Chemical Co Fibres creuses sélectivement perméables et leur fabrication
US3532527A (en) * 1966-11-04 1970-10-06 Dow Chemical Co Permeable separatory membranes
US3745202A (en) * 1971-03-17 1973-07-10 Us Interior Method of preparing an asymmetric membrane from a cellulose derivative
JPS5170316A (ja) * 1974-12-16 1976-06-17 Teijin Ltd Seruroosuaseteetochukushino seizohoho

Also Published As

Publication number Publication date
JPS6317922B2 (ja) 1988-04-15
DK149600B (da) 1986-08-04
DK302078A (da) 1979-01-06
NL7807225A (nl) 1979-01-09
AU3697178A (en) 1979-12-13
NO147979C (no) 1983-07-20
GB2000722A (en) 1979-01-17
BE868708A (fr) 1979-01-04
DE2827100A1 (de) 1979-01-25
JPS62250215A (ja) 1987-10-31
ATA477578A (de) 1981-04-15
AT364899B (de) 1981-11-25
DD137950A5 (de) 1979-10-03
AU519458B2 (en) 1981-12-03
FR2396780A1 (fr) 1979-02-02
DE2827100C2 (de) 1983-04-28
FR2396780B1 (ja) 1983-02-25
JPS5442420A (en) 1979-04-04
DK149600C (da) 1987-02-09
CA1107020A (en) 1981-08-18
SE428221B (sv) 1983-06-13
BR7804325A (pt) 1979-04-17
NZ187610A (en) 1980-09-12
GB2000722B (en) 1982-01-27
SE7807516L (sv) 1979-01-06
MX153159A (es) 1986-08-14
NO147979B (no) 1983-04-11
IT7850125A0 (it) 1978-06-30
CH632536A5 (fr) 1982-10-15
NO782320L (no) 1979-01-08

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970506