WO1995023181A1 - Derives cellulosiques microporeux et leur procede de production - Google Patents

Derives cellulosiques microporeux et leur procede de production Download PDF

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Publication number
WO1995023181A1
WO1995023181A1 PCT/FI1995/000090 FI9500090W WO9523181A1 WO 1995023181 A1 WO1995023181 A1 WO 1995023181A1 FI 9500090 W FI9500090 W FI 9500090W WO 9523181 A1 WO9523181 A1 WO 9523181A1
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WO
WIPO (PCT)
Prior art keywords
bis
oder
der
von
und
Prior art date
Application number
PCT/FI1995/000090
Other languages
English (en)
Inventor
Olli Aaltonen
Pia Qvintus-Leino
Original Assignee
Valtion Teknillinen Tutkimuskeskus
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 Valtion Teknillinen Tutkimuskeskus filed Critical Valtion Teknillinen Tutkimuskeskus
Publication of WO1995023181A1 publication Critical patent/WO1995023181A1/fr

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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
    • C08J9/16—Making expandable particles
    • C08J9/18—Making expandable particles by impregnating polymer particles with the blowing agent
    • 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
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • 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
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/06—CO2, N2 or noble gases
    • 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
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/08—Cellulose derivatives

Definitions

  • Trisalkylphosphite mit Presszugt langkettigen linearen oder verzweigten Alkyl disability wie Octyl-, Nonyl-, Isononyl-, Decyl- oder Isodecyl disability;

Abstract

Dérivé cellulosique, par exemple sous forme de film, de fibres ou de particules, que l'on met au contact avec du gaz carbonique, de préférence à une pression de 100 à 400 bar et à une température de 50 à 100 °C. Le gaz carbonique peut contenir une faible quantité d'additifs tels que des alcools. Le dérivé cellulosique gonfle sous l'action du gaz carbonique sous pression. Après un certain temps de gonflement on réduit très rapidement la pression du gaz carbonique de manière à provoquer le moussage du dérivé cellulosique. Suivant les conditions choisies, on obtient une matière à base d'un dérivé cellulosique microporeux dont les pores ont une taille moyenne de 0,5 à 50 micromètres. Les micropores peuvent être ouverts ou fermés et leur répartition dans la matière moussée peut être modulée par modification des conditions de traitement. Les dérivés cellulosiques microporeux sont utilisables par exemple comme matières de support pour des catalyseurs, des enzymes ou des anticorps sélectifs, en chromatographie immunologique, et trouvent également une application dans les matières pour structures ultralégères et dans les microfiltres.
PCT/FI1995/000090 1994-02-25 1995-02-22 Derives cellulosiques microporeux et leur procede de production WO1995023181A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI940876 1994-02-25
FI940876A FI100803B (fi) 1994-02-25 1994-02-25 Mikrohuokoiset selluloosajohdokset ja menetelmä niiden valmistamiseksi

Publications (1)

Publication Number Publication Date
WO1995023181A1 true WO1995023181A1 (fr) 1995-08-31

Family

ID=8540190

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1995/000090 WO1995023181A1 (fr) 1994-02-25 1995-02-22 Derives cellulosiques microporeux et leur procede de production

Country Status (2)

Country Link
FI (1) FI100803B (fr)
WO (1) WO1995023181A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000050104A1 (fr) * 1999-02-25 2000-08-31 Degradable Solutions Ag Corps moules poreux biodegradables
EP1651412A2 (fr) * 2003-08-06 2006-05-03 Milliken & Company Procede de formation de fibre diffusant la lumiere et fibre formee a l'aide de celui-ci

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0376064A2 (fr) * 1988-12-15 1990-07-04 Toyo Engineering Corporation Procédé de production de mousse
WO1991009079A1 (fr) * 1989-12-14 1991-06-27 Farmitalia Carlo Erba S.R.L. Utilisation de fluides surcritiques pour obtenir des eponges poreuses de polymeres biodegradables
US5158986A (en) * 1991-04-05 1992-10-27 Massachusetts Institute Of Technology Microcellular thermoplastic foamed with supercritical fluid
EP0610953A1 (fr) * 1993-02-11 1994-08-17 Minnesota Mining And Manufacturing Company Articles thermoplastiques expansés et leur méthode de préparation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0376064A2 (fr) * 1988-12-15 1990-07-04 Toyo Engineering Corporation Procédé de production de mousse
WO1991009079A1 (fr) * 1989-12-14 1991-06-27 Farmitalia Carlo Erba S.R.L. Utilisation de fluides surcritiques pour obtenir des eponges poreuses de polymeres biodegradables
US5158986A (en) * 1991-04-05 1992-10-27 Massachusetts Institute Of Technology Microcellular thermoplastic foamed with supercritical fluid
EP0610953A1 (fr) * 1993-02-11 1994-08-17 Minnesota Mining And Manufacturing Company Articles thermoplastiques expansés et leur méthode de préparation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
STN INTERNATIONAL, File CA, CHEMICAL ABSTRACTS, Volume 85, No. 8, 23 August 1976, (Columbus, Ohio, US), McENANEY BRIAN et al., "The Development of Porosity in Heat-treated Polymer Carbons Upon Activation by Carbon Dioxide", Abstract No. 52084; & CARBON, (1975), 13(6), 515-19. *
STN INTERNATIONAL, File CA, CHEMICAL ABSTRACTS, Volume 96, No. 18, 3 May 1982, (Columbus, Ohio, US), GREBENNIKOV S.F. et al., "Pore Structure and Adsorption Properties of Activated Carbon Fibers", Abstract No. 144356; & KHIM. VOLOKNA), (1982), (1), 38-9. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000050104A1 (fr) * 1999-02-25 2000-08-31 Degradable Solutions Ag Corps moules poreux biodegradables
EP1651412A2 (fr) * 2003-08-06 2006-05-03 Milliken & Company Procede de formation de fibre diffusant la lumiere et fibre formee a l'aide de celui-ci
EP1651412A4 (fr) * 2003-08-06 2007-09-19 Milliken & Co Procede de formation de fibre diffusant la lumiere et fibre formee a l'aide de celui-ci
CN100424240C (zh) * 2003-08-06 2008-10-08 美利肯公司 形成光分散纤维的方法及由此形成的纤维

Also Published As

Publication number Publication date
FI940876A (fi) 1995-08-26
FI940876A0 (fi) 1994-02-25
FI100803B (fi) 1998-02-27

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