JPS57156005A - Selective permeable membrane - Google Patents
Selective permeable membraneInfo
- Publication number
- JPS57156005A JPS57156005A JP4102881A JP4102881A JPS57156005A JP S57156005 A JPS57156005 A JP S57156005A JP 4102881 A JP4102881 A JP 4102881A JP 4102881 A JP4102881 A JP 4102881A JP S57156005 A JPS57156005 A JP S57156005A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- membrane
- permeable membrane
- water
- disiloxane
- 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
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
PURPOSE: To obtain a selective permeable membrane of superior stain resistance, chemical resistance, heat resistance, etc. consisting of polyurethane having siloxane in the main chain.
CONSTITUTION: A dimethyl sulfoxide soln. of bis(hydroxylethyl)tetramethyl disiloxane is added to a methyl isobutyl ketone soln. of diphenylmethane diisocyanate and the mixed soln. is heated under stirring in gaseous nitrogen flow, and is allowed to react for 5hr at 100°C. The resultant viscous soln. is charged into a large volumn of water to allow polymer to deposit. After the filtered polymer is dried, it is dissolved together with LiCl in N-methyl-2-pyrolidone whereby a filming soln. is prepd. This soln. is cast and coated on a glass sheet, and is immediately immersed in cold water, whereby a permeable membrane of 167μ is obtd. This membrane consists of the poly(urethane/disiloxane) having the repetitive units expressed by the general formulaI, and the rate of permeation of pure water through this membrane under 4kg/cm2 pressure is 1.08m3/m2.day. These properties of the membrane rarely change even after percolation in hot water and the membrane is highly resistant to heat.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4102881A JPS57156005A (en) | 1981-03-20 | 1981-03-20 | Selective permeable membrane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4102881A JPS57156005A (en) | 1981-03-20 | 1981-03-20 | Selective permeable membrane |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57156005A true JPS57156005A (en) | 1982-09-27 |
JPS6252602B2 JPS6252602B2 (en) | 1987-11-06 |
Family
ID=12596935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4102881A Granted JPS57156005A (en) | 1981-03-20 | 1981-03-20 | Selective permeable membrane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57156005A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4853453A (en) * | 1985-05-15 | 1989-08-01 | Ciba-Geigy Corporation | Modified silicone rubber and its use as a material for optical lenses and optical lenses made from this material |
US4962178A (en) * | 1988-11-03 | 1990-10-09 | Ciba-Geigy Corporation | Novel polysiloxane-polyurethanes and contact lens thereof |
US4983702A (en) * | 1988-09-28 | 1991-01-08 | Ciba-Geigy Corporation | Crosslinked siloxane-urethane polymer contact lens |
WO2011110441A3 (en) * | 2010-03-09 | 2011-11-10 | Polymers Crc Ltd | Polyurethane block copolymer containing one or more polysiloxane blocks for membranes |
JP2012500715A (en) * | 2008-08-22 | 2012-01-12 | ワッカー ケミー アクチエンゲゼルシャフト | Porous membranes from organopolysiloxane copolymers |
WO2014170391A1 (en) * | 2013-04-19 | 2014-10-23 | Basf Se | Improving the chemical stability of membranes |
US9693721B2 (en) | 2008-03-28 | 2017-07-04 | Dexcom, Inc. | Polymer membranes for continuous analyte sensors |
US9763609B2 (en) | 2003-07-25 | 2017-09-19 | Dexcom, Inc. | Analyte sensors having a signal-to-noise ratio substantially unaffected by non-constant noise |
US9804114B2 (en) | 2001-07-27 | 2017-10-31 | Dexcom, Inc. | Sensor head for use with implantable devices |
US9801574B2 (en) | 2002-05-22 | 2017-10-31 | Dexcom, Inc. | Techniques to improve polyurethane membranes for implantable glucose sensors |
US9931067B2 (en) | 1997-03-04 | 2018-04-03 | Dexcom, Inc. | Device and method for determining analyte levels |
US9993186B2 (en) | 2003-07-25 | 2018-06-12 | Dexcom, Inc. | Oxygen enhancing membrane systems for implantable devices |
US10028683B2 (en) | 2008-09-19 | 2018-07-24 | Dexcom, Inc. | Particle-containing membrane and particulate electrode for analyte sensors |
US10052051B2 (en) | 2002-05-22 | 2018-08-21 | Dexcom, Inc. | Silicone based membranes for use in implantable glucose sensors |
US10300507B2 (en) | 2005-05-05 | 2019-05-28 | Dexcom, Inc. | Cellulosic-based resistance domain for an analyte sensor |
US10376143B2 (en) | 2003-07-25 | 2019-08-13 | Dexcom, Inc. | Analyte sensors having a signal-to-noise ratio substantially unaffected by non-constant noise |
US10791928B2 (en) | 2007-05-18 | 2020-10-06 | Dexcom, Inc. | Analyte sensors having a signal-to-noise ratio substantially unaffected by non-constant noise |
US11730407B2 (en) | 2008-03-28 | 2023-08-22 | Dexcom, Inc. | Polymer membranes for continuous analyte sensors |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5858123A (en) * | 1981-09-30 | 1983-04-06 | パ−マテイツク・フイルタ−・コ−ポレイシヨン | Filtration for removing steam particle |
-
1981
- 1981-03-20 JP JP4102881A patent/JPS57156005A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5858123A (en) * | 1981-09-30 | 1983-04-06 | パ−マテイツク・フイルタ−・コ−ポレイシヨン | Filtration for removing steam particle |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4853453A (en) * | 1985-05-15 | 1989-08-01 | Ciba-Geigy Corporation | Modified silicone rubber and its use as a material for optical lenses and optical lenses made from this material |
US4983702A (en) * | 1988-09-28 | 1991-01-08 | Ciba-Geigy Corporation | Crosslinked siloxane-urethane polymer contact lens |
US4962178A (en) * | 1988-11-03 | 1990-10-09 | Ciba-Geigy Corporation | Novel polysiloxane-polyurethanes and contact lens thereof |
US9931067B2 (en) | 1997-03-04 | 2018-04-03 | Dexcom, Inc. | Device and method for determining analyte levels |
US9804114B2 (en) | 2001-07-27 | 2017-10-31 | Dexcom, Inc. | Sensor head for use with implantable devices |
US10154807B2 (en) | 2002-05-22 | 2018-12-18 | Dexcom, Inc. | Techniques to improve polyurethane membranes for implantable glucose sensors |
US9801574B2 (en) | 2002-05-22 | 2017-10-31 | Dexcom, Inc. | Techniques to improve polyurethane membranes for implantable glucose sensors |
US11020026B2 (en) | 2002-05-22 | 2021-06-01 | Dexcom, Inc. | Silicone based membranes for use in implantable glucose sensors |
US10052051B2 (en) | 2002-05-22 | 2018-08-21 | Dexcom, Inc. | Silicone based membranes for use in implantable glucose sensors |
US9763609B2 (en) | 2003-07-25 | 2017-09-19 | Dexcom, Inc. | Analyte sensors having a signal-to-noise ratio substantially unaffected by non-constant noise |
US9993186B2 (en) | 2003-07-25 | 2018-06-12 | Dexcom, Inc. | Oxygen enhancing membrane systems for implantable devices |
US10376143B2 (en) | 2003-07-25 | 2019-08-13 | Dexcom, Inc. | Analyte sensors having a signal-to-noise ratio substantially unaffected by non-constant noise |
US10610140B2 (en) | 2003-07-25 | 2020-04-07 | Dexcom, Inc. | Oxygen enhancing membrane systems for implantable devices |
US10300507B2 (en) | 2005-05-05 | 2019-05-28 | Dexcom, Inc. | Cellulosic-based resistance domain for an analyte sensor |
US10791928B2 (en) | 2007-05-18 | 2020-10-06 | Dexcom, Inc. | Analyte sensors having a signal-to-noise ratio substantially unaffected by non-constant noise |
US9693721B2 (en) | 2008-03-28 | 2017-07-04 | Dexcom, Inc. | Polymer membranes for continuous analyte sensors |
US11147483B2 (en) | 2008-03-28 | 2021-10-19 | Dexcom, Inc. | Polymer membranes for continuous analyte sensors |
US11730407B2 (en) | 2008-03-28 | 2023-08-22 | Dexcom, Inc. | Polymer membranes for continuous analyte sensors |
US10143410B2 (en) | 2008-03-28 | 2018-12-04 | Dexcom, Inc. | Polymer membranes for continuous analyte sensors |
US9475010B2 (en) | 2008-08-22 | 2016-10-25 | Wacker Chemie Ag | Porous membranes made up of organopolysiloxane copolymers |
JP2012500715A (en) * | 2008-08-22 | 2012-01-12 | ワッカー ケミー アクチエンゲゼルシャフト | Porous membranes from organopolysiloxane copolymers |
KR101306478B1 (en) * | 2008-08-22 | 2013-09-09 | 와커 헤미 아게 | Porous membranes made up of organopolysiloxane copolymers |
US10561352B2 (en) | 2008-09-19 | 2020-02-18 | Dexcom, Inc. | Particle-containing membrane and particulate electrode for analyte sensors |
US10028684B2 (en) | 2008-09-19 | 2018-07-24 | Dexcom, Inc. | Particle-containing membrane and particulate electrode for analyte sensors |
US10028683B2 (en) | 2008-09-19 | 2018-07-24 | Dexcom, Inc. | Particle-containing membrane and particulate electrode for analyte sensors |
US11918354B2 (en) | 2008-09-19 | 2024-03-05 | Dexcom, Inc. | Particle-containing membrane and particulate electrode for analyte sensors |
WO2011110441A3 (en) * | 2010-03-09 | 2011-11-10 | Polymers Crc Ltd | Polyurethane block copolymer containing one or more polysiloxane blocks for membranes |
KR20130039723A (en) * | 2010-03-09 | 2013-04-22 | 폴리머스 씨알씨 리미티드 | Polyurethane block copolymer containing one or more polysiloxane blocks for membranes |
JP2013521387A (en) * | 2010-03-09 | 2013-06-10 | ポリマーズ シーアールシー リミテッド | Polyurethane block copolymer comprising one or more polysiloxane blocks for the membrane |
AU2016216651B2 (en) * | 2010-03-09 | 2017-06-22 | Polymers Crc Limited | Polyurethane block copolymer based on poly siloxane tenside for membranes |
AU2011226240B2 (en) * | 2010-03-09 | 2016-09-15 | Polymers Crc Ltd | Polyurethane block copolymer containing one or more polysiloxane blocks for membranes |
US9139686B2 (en) | 2010-03-09 | 2015-09-22 | Polymers Crc Ltd. | Polyurethane block copolymer based on poly siloxane tenside for membranes |
EP2821422A3 (en) * | 2010-03-09 | 2015-05-06 | Polymers CRC Ltd. | Polyurethane block copolymer based on poly siloxane tenside for membranes |
WO2014170391A1 (en) * | 2013-04-19 | 2014-10-23 | Basf Se | Improving the chemical stability of membranes |
Also Published As
Publication number | Publication date |
---|---|
JPS6252602B2 (en) | 1987-11-06 |
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