Paste, which can undergo screen printing, for producing a porous polymer membrane for a biosensor
First Claim
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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 hydrophilic viscosity modifier.
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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 polymer 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 modifier.
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Citations
18 Claims
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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 hydrophilic viscosity modifier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18)
- 100°
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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.
Specification