CA2394948A1 - Screen-printable paste for producing a porous polymer membrane for a biosensor - Google Patents

Screen-printable paste for producing a porous polymer membrane for a biosensor Download PDF

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Publication number
CA2394948A1
CA2394948A1 CA002394948A CA2394948A CA2394948A1 CA 2394948 A1 CA2394948 A1 CA 2394948A1 CA 002394948 A CA002394948 A CA 002394948A CA 2394948 A CA2394948 A CA 2394948A CA 2394948 A1 CA2394948 A1 CA 2394948A1
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CA
Canada
Prior art keywords
paste
screen
printable
printable paste
polymer
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002394948A
Other languages
French (fr)
Other versions
CA2394948C (en
Inventor
Matthias Stiene
Birgit Von Tiedemann
Jamie Rodgers
Lucy Macgregor
Jerry Mcaleer
Alan Mcneilage
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LifeScan Scotland Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2394948A1 publication Critical patent/CA2394948A1/en
Application granted granted Critical
Publication of CA2394948C publication Critical patent/CA2394948C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20—Manufacture of shaped structures of ion-exchange resins
    • C08J5/22—Films, membranes or diaphragms
    • 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
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0011—Casting solutions therefor
    • 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
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0013—Casting processes
    • 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
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/122—Separate manufacturing of ultra-thin 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
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix 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
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • B01D69/1411—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes containing dispersed material in a continuous matrix
    • 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
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/001—Enzyme electrodes
    • C12Q1/002—Electrode membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/06—Specific viscosities of materials involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/12—Specific ratios of components used

Abstract

The invention relates to a paste, which can undergo screen printing, for producing a porous polymer membrane. Said paste contains at least one polymer, one or more solvents for the poly-mer having a boiling point of > 100 °C, one or more non-solvents for the polymers (pore-forming agents) having a higher boiling point than that of the solvent(s), and contains a hydrophilic viscosity mod-ifier.

Claims (18)

1. A screen-printable paste for producing a porous polymer membrane, comprising at least one polymer, one or more solvents for the polymer with a boiling point of > 100°C, one or more nonsolvents (pore formers) for the polymer with a higher boiling point than the solvent(s) and a hydro-philic viscosity modifier.
2. A screen-printable paste as claimed in claim 1, characterized in that the difference of the boil-ing points of solvent and pore former is at least 30°C.
3. A screen-printable paste as claimed in claim 1 or 2, characterized in that the paste comprises cellulose acetate as polymer.
4. A screen-printable paste as claimed in claim 3, characterized in that the paste comprises 1,4-di-oxane and/or 4-hydroxymethylpentanone and/or ethyl acetate as solvent.
5. A screen-printable paste as claimed in at least one of claims 1 to 4, characterized in that the paste comprises a long-chain alcohol as pore former.
6. A screen-printable paste as claimed in claim 5, characterized in that the paste comprises n-octanol and/or 2-methyl-2,4-pentanediol as pore former.
7. A screen-printable paste as claimed in claim 6, characterized in that n-octanol and/or 2-methyl-2,4-pentanediol is present in a proportion of 5-20% by weight.
8. A screen-printable paste as claimed in at least one of the preceding claims, characterized in that the paste comprises hydrophilic silica xerogel as viscosity modifier.
9. A screen-printable paste as claimed in claim 8, characterized in that the silica xerogel is present in a proportion of 1-10% by weight.
10. A screen-printable paste as claimed in at least one of the preceding claims, characterized in that the paste additionally comprises vinylpyrolidone/
vinyl acetate copolymer (PVP/VA) and/or polyvinyl-pyrolidone (PVP).
11. A screen-printable paste as claimed in claim 10, characterized in that the PVP/VA or PVP is present in a proportion of 0.1% by weight.
12. A screen-printable paste as claimed in at least one of the preceding claims, characterized in that the paste additionally comprises one or more enzymes.
13. A method for producing a screen-printable paste, by producing a mixture of one or more solvent(s) for a polymer and one or more nonsolvent(s) for a polymer (pore former), mixing in the polymer until a uniform suspension results, rolling the suspension until a clear gel results, adding a hydrophilic viscosity modifier, and rolling the mixture until the viscosity modifier is uniformly distributed.
14. The use of the paste as claimed in at least one of claims 1 to 12 for producing a porous polymer membrane.
15. The use as claimed in claim 14, where the polymer membrane is introduced into a biosensor test strip.
16. The use as claimed in claim 15, characterized in that the biosensor is designed for measuring the blood glucose concentration.
17. The use as claimed in claim 15, characterized in that the biosensor is designed for determining the value of the hematocrit.
18. A porous polymer membrane produced from the screen-printable paste as claimed in at least one of claims 1 to 12.
CA2394948A 2000-10-19 2001-10-18 Screen-printable paste for producing a porous polymer membrane for a biosensor Expired - Lifetime CA2394948C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10052066A DE10052066A1 (en) 2000-10-19 2000-10-19 Screen printable paste for the production of a porous polymer membrane for a biosensor
DE10052066.9 2000-10-19
PCT/EP2001/012073 WO2002032559A1 (en) 2000-10-19 2001-10-18 Paste, which can undergo screen printing, for producing a porous polymer membrane for a biosensor

Publications (2)

Publication Number Publication Date
CA2394948A1 true CA2394948A1 (en) 2002-04-25
CA2394948C CA2394948C (en) 2010-04-20

Family

ID=7660463

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2394948A Expired - Lifetime CA2394948C (en) 2000-10-19 2001-10-18 Screen-printable paste for producing a porous polymer membrane for a biosensor

Country Status (18)

Country Link
US (1) US6719923B2 (en)
EP (1) EP1246688B1 (en)
JP (1) JP3939651B2 (en)
KR (1) KR100830855B1 (en)
AT (1) ATE266461T1 (en)
AU (1) AU780195B2 (en)
CA (1) CA2394948C (en)
CZ (1) CZ20022136A3 (en)
DE (2) DE10052066A1 (en)
DK (1) DK1246688T3 (en)
DZ (1) DZ3245A1 (en)
ES (1) ES2218465T3 (en)
IL (1) IL150175A (en)
MX (1) MXPA02006101A (en)
PT (1) PT1246688E (en)
RU (1) RU2225249C1 (en)
TR (1) TR200401526T4 (en)
WO (1) WO2002032559A1 (en)

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Also Published As

Publication number Publication date
ATE266461T1 (en) 2004-05-15
TR200401526T4 (en) 2004-09-21
PT1246688E (en) 2004-09-30
EP1246688A1 (en) 2002-10-09
IL150175A (en) 2005-12-18
MXPA02006101A (en) 2004-08-23
US6719923B2 (en) 2004-04-13
IL150175A0 (en) 2002-12-01
CZ20022136A3 (en) 2003-01-15
JP3939651B2 (en) 2007-07-04
EP1246688B1 (en) 2004-05-12
KR20020081226A (en) 2002-10-26
KR100830855B1 (en) 2008-05-21
US20030125403A1 (en) 2003-07-03
WO2002032559A1 (en) 2002-04-25
CA2394948C (en) 2010-04-20
DE50102260D1 (en) 2004-06-17
AU780195B2 (en) 2005-03-10
JP2004511791A (en) 2004-04-15
DK1246688T3 (en) 2004-08-30
DE10052066A1 (en) 2002-05-29
DZ3245A1 (en) 2002-04-25
RU2002119393A (en) 2004-01-10
ES2218465T3 (en) 2004-11-16
AU2170102A (en) 2002-04-29
RU2225249C1 (en) 2004-03-10

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