CH636381A5 - Method for the preparation of fibres with porous structure, porous fibres produced in this way, and their use - Google Patents

Method for the preparation of fibres with porous structure, porous fibres produced in this way, and their use Download PDF

Info

Publication number: CH636381A5
Authority: CH; Switzerland
Prior art keywords: porous; fibers; fiber; polymer; process according
Prior art date: 1976-12-23

Application number

CH1538477A

Other languages

English (en)

Italian (it)

Inventor

Francesco Di Gregorio

Silvio Gulinelli

Original Assignee

Anic Spa

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.)

1976-12-23

Filing date

1977-12-14

Publication date

1983-05-31

1977-12-14 Application filed by Anic Spa filed Critical Anic Spa

1983-05-31 Publication of CH636381A5 publication Critical patent/CH636381A5/it

Links

238000000034 method Methods 0.000 title claims description 14
238000002360 preparation method Methods 0.000 title claims description 9
239000000835 fiber Substances 0.000 claims description 52
229920000642 polymer Polymers 0.000 claims description 15
239000000203 mixture Substances 0.000 claims description 14
238000009987 spinning Methods 0.000 claims description 11
108090000790 Enzymes Proteins 0.000 claims description 8
102000004190 Enzymes Human genes 0.000 claims description 8
102000004169 proteins and genes Human genes 0.000 claims description 8
108090000623 proteins and genes Proteins 0.000 claims description 8
229920001577 copolymer Polymers 0.000 claims description 4
229920002678 cellulose Polymers 0.000 claims description 3
239000001913 cellulose Substances 0.000 claims description 3
BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 2
239000003153 chemical reaction reagent Substances 0.000 claims description 2
239000007788 liquid Substances 0.000 claims description 2
239000007787 solid Substances 0.000 claims description 2
PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims 2
150000002170 ethers Chemical class 0.000 claims 2
OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 claims 1
CBECDWUDYQOTSW-UHFFFAOYSA-N 2-ethylbut-3-enal Chemical compound CCC(C=C)C=O CBECDWUDYQOTSW-UHFFFAOYSA-N 0.000 claims 1
NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims 1
GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 claims 1
239000004952 Polyamide Substances 0.000 claims 1
239000004642 Polyimide Substances 0.000 claims 1
229940124639 Selective inhibitor Drugs 0.000 claims 1
NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
238000004090 dissolution Methods 0.000 claims 1
150000002148 esters Chemical class 0.000 claims 1
239000007970 homogeneous dispersion Substances 0.000 claims 1
238000002844 melting Methods 0.000 claims 1
230000008018 melting Effects 0.000 claims 1
125000005395 methacrylic acid group Chemical group 0.000 claims 1
JTHNLKXLWOXOQK-UHFFFAOYSA-N n-propyl vinyl ketone Natural products CCCC(=O)C=C JTHNLKXLWOXOQK-UHFFFAOYSA-N 0.000 claims 1
150000002823 nitrates Chemical class 0.000 claims 1
229920002647 polyamide Polymers 0.000 claims 1
229920000728 polyester Polymers 0.000 claims 1
229920006149 polyester-amide block copolymer Polymers 0.000 claims 1
229920001721 polyimide Polymers 0.000 claims 1
229920001184 polypeptide Polymers 0.000 claims 1
102000004196 processed proteins & peptides Human genes 0.000 claims 1
108090000765 processed proteins & peptides Proteins 0.000 claims 1
229920001567 vinyl ester resin Polymers 0.000 claims 1
125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims 1
PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 32
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
235000011187 glycerol Nutrition 0.000 description 16
238000003756 stirring Methods 0.000 description 13
YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
230000002255 enzymatic effect Effects 0.000 description 12
YQDHCCVUYCIGSW-LBPRGKRZSA-N ethyl (2s)-2-benzamido-5-(diaminomethylideneamino)pentanoate Chemical group NC(=N)NCCC[C@@H](C(=O)OCC)NC(=O)C1=CC=CC=C1 YQDHCCVUYCIGSW-LBPRGKRZSA-N 0.000 description 12
239000000243 solution Substances 0.000 description 11
238000006243 chemical reaction Methods 0.000 description 10
229920002284 Cellulose triacetate Polymers 0.000 description 9
YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 9
239000008363 phosphate buffer Substances 0.000 description 9
239000000047 product Substances 0.000 description 9
238000005406 washing Methods 0.000 description 8
230000000694 effects Effects 0.000 description 7
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
239000012071 phase Substances 0.000 description 6
239000002904 solvent Substances 0.000 description 6
239000000126 substance Substances 0.000 description 6
238000010828 elution Methods 0.000 description 5
OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 4
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
JGSARLDLIJGVTE-MBNYWOFBSA-N Penicillin G Chemical compound N([C@H]1[C@H]2SC([C@@H](N2C1=O)C(O)=O)(C)C)C(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-MBNYWOFBSA-N 0.000 description 4
102000004142 Trypsin Human genes 0.000 description 4
108090000631 Trypsin Proteins 0.000 description 4
238000004873 anchoring Methods 0.000 description 4
KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 4
239000012588 trypsin Substances 0.000 description 4
WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 3
AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 3
206010053567 Coagulopathies Diseases 0.000 description 3
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
239000007864 aqueous solution Substances 0.000 description 3
230000035602 clotting Effects 0.000 description 3
230000008034 disappearance Effects 0.000 description 3
239000012153 distilled water Substances 0.000 description 3
238000001035 drying Methods 0.000 description 3
239000000463 material Substances 0.000 description 3
239000002808 molecular sieve Substances 0.000 description 3
229910052757 nitrogen Inorganic materials 0.000 description 3
URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 3
229920002307 Dextran Polymers 0.000 description 2
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
108010073038 Penicillin Amidase Proteins 0.000 description 2
YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 2
239000003054 catalyst Substances 0.000 description 2
125000000524 functional group Chemical group 0.000 description 2
238000002523 gelfiltration Methods 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
239000011159 matrix material Substances 0.000 description 2
238000005259 measurement Methods 0.000 description 2
VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
229940056360 penicillin g Drugs 0.000 description 2
WLJVXDMOQOGPHL-UHFFFAOYSA-N phenylacetic acid Chemical compound OC(=O)CC1=CC=CC=C1 WLJVXDMOQOGPHL-UHFFFAOYSA-N 0.000 description 2
229920000915 polyvinyl chloride Polymers 0.000 description 2
239000004800 polyvinyl chloride Substances 0.000 description 2
LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
239000000758 substrate Substances 0.000 description 2
239000004753 textile Substances 0.000 description 2
239000003643 water by type Substances 0.000 description 2
NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
NGHVIOIJCVXTGV-ALEPSDHESA-N 6-aminopenicillanic acid Chemical compound [O-]C(=O)[C@H]1C(C)(C)S[C@@H]2[C@H]([NH3+])C(=O)N21 NGHVIOIJCVXTGV-ALEPSDHESA-N 0.000 description 1
NGHVIOIJCVXTGV-UHFFFAOYSA-N 6beta-amino-penicillanic acid Natural products OC(=O)C1C(C)(C)SC2C(N)C(=O)N21 NGHVIOIJCVXTGV-UHFFFAOYSA-N 0.000 description 1
QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
229920003043 Cellulose fiber Polymers 0.000 description 1
241000588724 Escherichia coli Species 0.000 description 1
XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
WKNIDMJWLWUOMZ-UHFFFAOYSA-N [K].[Cr] Chemical compound [K].[Cr] WKNIDMJWLWUOMZ-UHFFFAOYSA-N 0.000 description 1
239000002250 absorbent Substances 0.000 description 1
230000002745 absorbent Effects 0.000 description 1
230000004913 activation Effects 0.000 description 1
230000003197 catalytic effect Effects 0.000 description 1
239000013065 commercial product Substances 0.000 description 1
239000003480 eluent Substances 0.000 description 1
238000006911 enzymatic reaction Methods 0.000 description 1
239000002657 fibrous material Substances 0.000 description 1
238000001914 filtration Methods 0.000 description 1
239000012847 fine chemical Substances 0.000 description 1
239000011521 glass Substances 0.000 description 1
IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
230000007062 hydrolysis Effects 0.000 description 1
238000006460 hydrolysis reaction Methods 0.000 description 1
239000007791 liquid phase Substances 0.000 description 1
230000007935 neutral effect Effects 0.000 description 1
229960003424 phenylacetic acid Drugs 0.000 description 1
239000003279 phenylacetic acid Substances 0.000 description 1
238000010992 reflux Methods 0.000 description 1
230000000717 retained effect Effects 0.000 description 1
235000010288 sodium nitrite Nutrition 0.000 description 1
239000007790 solid phase Substances 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
210000003934 vacuole Anatomy 0.000 description 1

Classifications

- 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
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- 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
- B01J20/28023—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
- B01J47/00—Ion-exchange processes in general; Apparatus therefor
- B01J47/12—Ion-exchange processes in general; Apparatus therefor characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes
- B01J47/127—Ion-exchange processes in general; Apparatus therefor characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes in the form of filaments or fibres
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (AREA)
Organic Chemistry (AREA)
Manufacturing & Machinery (AREA)
Zoology (AREA)
Analytical Chemistry (AREA)
Health & Medical Sciences (AREA)
Bioinformatics & Cheminformatics (AREA)
Genetics & Genomics (AREA)
Life Sciences & Earth Sciences (AREA)
Wood Science & Technology (AREA)
General Chemical & Material Sciences (AREA)
Microbiology (AREA)
General Engineering & Computer Science (AREA)
General Health & Medical Sciences (AREA)
Biotechnology (AREA)
Biomedical Technology (AREA)
Biochemistry (AREA)
Textile Engineering (AREA)
Artificial Filaments (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Preliminary Treatment Of Fibers (AREA)
Reinforced Plastic Materials (AREA)
Peptides Or Proteins (AREA)
Immobilizing And Processing Of Enzymes And Microorganisms (AREA)

CH1538477A 1976-12-23 1977-12-14 Method for the preparation of fibres with porous structure, porous fibres produced in this way, and their use CH636381A5 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT30799/76A IT1065294B (it)	1976-12-23	1976-12-23	Procedimento per la preparazione di fibre a struttura porosa,fibre porose cosi'ottenute e impieghi delle stesse

Publications (1)

Publication Number	Publication Date
CH636381A5 true CH636381A5 (en)	1983-05-31

Family

ID=11232128

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH1538477A CH636381A5 (en)	1976-12-23	1977-12-14	Method for the preparation of fibres with porous structure, porous fibres produced in this way, and their use

Country Status (18)

Country	Link
JP (1)	JPS5381718A (nl)
AU (1)	AU509081B2 (nl)
BE (1)	BE862287A (nl)
CH (1)	CH636381A5 (nl)
CS (1)	CS208154B2 (nl)
DD (2)	DD142897A5 (nl)
DE (1)	DE2757787B2 (nl)
DK (1)	DK575677A (nl)
FR (1)	FR2375280A1 (nl)
GB (1)	GB1572196A (nl)
HU (1)	HU177739B (nl)
IT (1)	IT1065294B (nl)
LU (1)	LU78740A1 (nl)
NL (1)	NL7714212A (nl)
NO (1)	NO774403L (nl)
SE (1)	SE432113B (nl)
YU (1)	YU299777A (nl)
ZA (1)	ZA776996B (nl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2755341C2 (de)	1977-12-12	1983-09-08	Akzo Gmbh, 5600 Wuppertal	Hydrophile Polyesterfasern
DE2906056A1 (de) *	1979-02-16	1980-08-28	Linde Ag	Verfahren zur rueckgewinnung der salze der anthrachinondisulfonsaeure aus einem waschfluessigkeitsstrom
JPS56140113A (en) *	1980-03-28	1981-11-02	Kuraray Co Ltd	Synthetic polyvinyl alcohol fiber having improved adhesive property to cement and its preparation
FR2565841B1 (fr) *	1984-06-14	1989-08-18	Inst Nat Rech Chimique	Materiau a grande surface specifique et ses applications pour favoriser le contact entre des milieux ou des reactifs impliquant des phenomenes physiques et/ou chimiques, et/ou biologiques

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE336521A (nl) *	1925-09-17
GB802689A (en) *	1955-08-06	1958-10-08	British Nylon Spinners Ltd	Improvements in or relating to yarn comprising crimped filaments and its manufacture
IL32406A (en) *	1968-06-26	1973-01-30	Snam Progetti	Enzyme preparations comprising a solution or dispersion of enzyme occluded in filaments of cellulose esters or synthetic polymers
IT941398B (it) *	1971-04-28	1973-03-01	Snam Progetti	Dispositivo atto a realizzare anali si nel campo della chimica organica
IT1012509B (it) *	1971-05-26	1977-03-10	Snam Progetti	Procedimento per la preparazione di composti organici contenenti atomi marcati
DE2158124C3 (de) *	1971-11-24	1975-03-13	Boehringer Mannheim Gmbh, 6800 Mannheim	Verwendung von Polyamidvlies oder -filz als saugfähiger Träger für diagnostische Mittel
JPS4911793A (nl) *	1972-05-10	1974-02-01
JPS554842B2 (nl) *	1972-06-30	1980-02-01
CH586726A5 (nl) *	1972-08-02	1977-04-15	Basf Ag
IT1017564B (it) *	1974-04-30	1977-08-10	Snam Progetti	Processo per la preparazione di derivati adeninici funzionalizza ti e prodotti cosi ottenuti
IT1046849B (it) *	1974-06-12	1980-07-31	Snam Progetti	Processo per la preparazione di derivati adeninici macromolecola rizzati e prodotti cosi ottenuti

1976
- 1976-12-23 IT IT30799/76A patent/IT1065294B/it active
1977
- 1977-11-24 ZA ZA00776996A patent/ZA776996B/xx unknown
- 1977-11-28 AU AU30993/77A patent/AU509081B2/en not_active Expired
- 1977-12-06 GB GB50824/77A patent/GB1572196A/en not_active Expired
- 1977-12-14 CH CH1538477A patent/CH636381A5/it not_active IP Right Cessation
- 1977-12-16 YU YU02997/77A patent/YU299777A/xx unknown
- 1977-12-20 CS CS778594A patent/CS208154B2/cs unknown
- 1977-12-21 DD DD77212117A patent/DD142897A5/de unknown
- 1977-12-21 LU LU78740A patent/LU78740A1/xx unknown
- 1977-12-21 NO NO774403A patent/NO774403L/no unknown
- 1977-12-21 DD DD77202853A patent/DD136856A5/xx unknown
- 1977-12-21 NL NL7714212A patent/NL7714212A/nl not_active Application Discontinuation
- 1977-12-22 HU HU77SA3083A patent/HU177739B/hu unknown
- 1977-12-22 DK DK575677A patent/DK575677A/da not_active Application Discontinuation
- 1977-12-22 SE SE7714702A patent/SE432113B/sv unknown
- 1977-12-22 FR FR7738885A patent/FR2375280A1/fr active Granted
- 1977-12-23 DE DE2757787A patent/DE2757787B2/de not_active Ceased
- 1977-12-23 BE BE183815A patent/BE862287A/xx not_active IP Right Cessation
- 1977-12-23 JP JP15460777A patent/JPS5381718A/ja active Pending

Also Published As

Publication number	Publication date
DD136856A5 (de)	1979-08-01
YU299777A (en)	1982-08-31
DK575677A (da)	1978-06-24
LU78740A1 (nl)	1978-04-17
FR2375280A1 (fr)	1978-07-21
SE432113B (sv)	1984-03-19
AU509081B2 (en)	1980-04-17
BE862287A (fr)	1978-06-23
HU177739B (en)	1981-12-28
DE2757787A1 (de)	1978-06-29
FR2375280B1 (nl)	1981-06-19
NO774403L (no)	1978-06-26
JPS5381718A (en)	1978-07-19
DE2757787B2 (de)	1979-08-16
IT1065294B (it)	1985-02-25
DD142897A5 (de)	1980-07-16
ZA776996B (en)	1978-09-27
SE7714702L (sv)	1978-06-24
GB1572196A (en)	1980-07-23
CS208154B2 (en)	1981-08-31
AU3099377A (en)	1979-06-28
NL7714212A (nl)	1978-06-27

Legal Events

Date	Code	Title	Description
1986-08-29	PL	Patent ceased

Publication	Publication Date	Title
US20170157544A1 (en)	2017-06-08	Hybrid felts of electrospun nanofibers
US3930105A (en)	1975-12-30	Hollow fibres
Li et al.	1996	Transport characterization of hydrogel matrices for cell encapsulation
Andrianov et al.	1993	Controlled release using ionotropic polyphosphazene hydrogels
CN102260662A (zh)	2011-11-30	用于固定化酶的载体及其用途和固定有酶的载体
CN103269781B (zh)	2016-05-25	无脱层的膜
CH636381A5 (en)	1983-05-31	Method for the preparation of fibres with porous structure, porous fibres produced in this way, and their use
CN101716494B (zh)	2012-05-30	一种纯化凝血酶的磁性亲和微球及其制备方法和应用
KR20080065607A (ko)	2008-07-14	성형체 및 그 제조 방법
Restrepo et al.	2024	Self-supporting biocatalytic polyelectrolyte complex hollow fiber membranes via salt-dilution induced phase separation
Štamberg	1988	Bead cellulose
CN100371372C (zh)	2008-02-27	磷脂改性腈纶纳米纤维复合膜及其制备和固定化酶的方法
CN106350946A (zh)	2017-01-25	一种功能性pu‑rc复合纳米纤维膜的制备方法及其应用
CN109554826B (zh)	2021-04-27	一种对氨基酸具有高效选择性的纳米电纺膜及其制备方法
JPS6141608B2 (nl)	1986-09-16
JP3299955B2 (ja)	2002-07-08	トライローバル断面のセルロースアセテートフィラメント
JP2506682B2 (ja)	1996-06-12	球状粒子の製造法
CA1087820A (en)	1980-10-21	Extrusion of polymeric spinning emulsion containing sequestering agent
CN114891775A (zh)	2022-08-12	一种结构增强的生物活体传感材料及其制备方法
CH644387A5 (it)	1984-07-31	Processo per la preparazione di corpi microporosi inglobanti uno o piu agenti attivi.
US4968605A (en)	1990-11-06	Immobilization of enzymes on porous melt spun polyamide yarns
JPH11211694A (ja)	1999-08-06	キャピラリーおよびその製造方法
CN109134758B (zh)	2021-03-30	一种壳聚糖羧甲基纤维素钠接枝中空球及其制备方法
CN112458074B (zh)	2023-04-14	β-半乳糖苷酶的固定化方法
KR101261796B1 (ko)	2013-05-07	효소컬럼 및 그 제조방법