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WO1992002005A3 - Transition de phase d'un gel commandee par l'interaction d'un stimulus - Google Patents

Transition de phase d'un gel commandee par l'interaction d'un stimulus Download PDF

Info

Publication number
WO1992002005A3
WO1992002005A3 PCT/US1991/005312 US9105312W WO9202005A3 WO 1992002005 A3 WO1992002005 A3 WO 1992002005A3 US 9105312 W US9105312 W US 9105312W WO 9202005 A3 WO9202005 A3 WO 9202005A3
Authority
WO
WIPO (PCT)
Prior art keywords
phase
stimulus
transition
gel
interaction
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.)
Ceased
Application number
PCT/US1991/005312
Other languages
English (en)
Other versions
WO1992002005A2 (fr
Inventor
Toyoichi Tanaka
Etsuo Kokufuta
Yong-Quing Zhang
Atsushi Suzuki
Akira Mamada
Yoshitsugu Hirokawa
Masayuki Tokita
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.)
Massachusetts Institute of Technology
Original Assignee
Massachusetts Institute of Technology
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 Massachusetts Institute of Technology filed Critical Massachusetts Institute of Technology
Publication of WO1992002005A2 publication Critical patent/WO1992002005A2/fr
Publication of WO1992002005A3 publication Critical patent/WO1992002005A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • 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
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/10—Polymers characterised by the presence of specified groups, e.g. terminal or pendant functional groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Medicinal Preparation (AREA)

Abstract

L'invention se rapporte à un gel à transition de phase et à un procédé de formation d'un gel à transition de phase, lequel subit un changement de volume discontinu important dans une condition de transition de phase désirée en réaction à un stimulus. Le gel à transition de phase se compose d'un milieu liquide gélifié au moyen d'un réseau polymère qui se trouve dans une condition de transition de phase différente de celle désirée et qui contient une quantité d'un agent modificateur de transition de phase suffisante pour produire, en réaction au stimulus, un changement de volume dicontinu du gel jusqu'à ce que celui-ci présente la condition de transition de phase désirée.
PCT/US1991/005312 1990-07-26 1991-07-26 Transition de phase d'un gel commandee par l'interaction d'un stimulus Ceased WO1992002005A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55873390A 1990-07-26 1990-07-26
US558,733 1990-07-26

Publications (2)

Publication Number Publication Date
WO1992002005A2 WO1992002005A2 (fr) 1992-02-06
WO1992002005A3 true WO1992002005A3 (fr) 1992-03-19

Family

ID=24230751

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/005312 Ceased WO1992002005A2 (fr) 1990-07-26 1991-07-26 Transition de phase d'un gel commandee par l'interaction d'un stimulus

Country Status (1)

Country Link
WO (1) WO1992002005A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9182292B2 (en) 2005-04-29 2015-11-10 Prasidiux, Llc Stimulus indicating device employing polymer gels

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5976648A (en) 1995-12-14 1999-11-02 Kimberly-Clark Worldwide, Inc. Synthesis and use of heterogeneous polymer gels
US6186991B1 (en) 1998-06-29 2001-02-13 The Procter & Gamble Company Disposable article having a responsive system including a mechanical actuator
US6149636A (en) 1998-06-29 2000-11-21 The Procter & Gamble Company Disposable article having proactive sensors
DE19812436A1 (de) * 1998-03-22 1999-09-30 Univ Dresden Tech Funktionselement für die Fluid- oder Aerosoltechnik
BR9911748A (pt) 1998-06-29 2001-04-03 Procter & Gamble Artigo absorvente, inserto para ser colocado em uma peça de vestuário do usuário, artigo descartável e processo para aumentar a capacidade de remoção de excreções corpóreas da pele de um usuário
US6160198A (en) * 1998-06-29 2000-12-12 The Procter & Gamble Company Disposable article having a discontinuous responsive system
US6372951B1 (en) 1998-06-29 2002-04-16 The Procter & Gamble Company Disposable article having sensor to detect impending elimination of bodily waste
AU4850499A (en) 1998-06-29 2000-01-17 Procter & Gamble Company, The Device having fecal component sensor
US6342037B1 (en) 1998-06-29 2002-01-29 The Procter & Gamble Company Device having fecal component sensor
US6359190B1 (en) 1998-06-29 2002-03-19 The Procter & Gamble Company Device for measuring the volume of a body cavity
ATE261713T1 (de) * 1998-06-29 2004-04-15 Procter & Gamble Wegwerfartikel mit isolierungsvorrichtung für körperliche ausscheidungsprodukte
US6407308B1 (en) 1998-06-29 2002-06-18 The Procter & Gamble Company Disposable article having sensor to detect impending elimination of bodily waste
ATE266991T1 (de) * 1998-06-29 2004-06-15 Procter & Gamble Absorbierender wegwerfartikel mit einem reagierenden system mit einem elektrischen antrieb
US6433244B1 (en) 1998-06-29 2002-08-13 The Procter & Gamble Company Disposable treatment article having a responsive system
US6679324B2 (en) 1999-04-29 2004-01-20 Shell Oil Company Downhole device for controlling fluid flow in a well
EG22755A (en) * 1999-04-29 2003-07-30 Shell Int Research Downhole device for controlling fluid flow in a well
EP1877761A4 (fr) * 2005-04-29 2010-03-24 Rel S Ambrozy Indication de stimulus utilisant des gels polymeres
US8077554B2 (en) 2005-04-29 2011-12-13 Ambrozy Rel S Stimulus indicating device employing polymer gels
US8166906B2 (en) 2005-04-29 2012-05-01 Ambrozy Rel S Stimulus indicating device employing polymer gels
US7940605B2 (en) 2005-04-29 2011-05-10 Prasidiux, Llc Stimulus indicating device employing polymer gels
GB0623043D0 (en) * 2006-11-18 2006-12-27 Univ Sheffield Sensor devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172066A (en) * 1974-06-21 1979-10-23 The Dow Chemical Company Cross-linked, water-swellable polymer microgels
US4174952A (en) * 1978-01-23 1979-11-20 Massachusetts Institute Of Technology Immunoassay by light scattering intensity anisotropy measurements
US4732930A (en) * 1985-05-20 1988-03-22 Massachusetts Institute Of Technology Reversible, discontinuous volume changes of ionized isopropylacrylamide cells

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172066A (en) * 1974-06-21 1979-10-23 The Dow Chemical Company Cross-linked, water-swellable polymer microgels
US4174952A (en) * 1978-01-23 1979-11-20 Massachusetts Institute Of Technology Immunoassay by light scattering intensity anisotropy measurements
US4732930A (en) * 1985-05-20 1988-03-22 Massachusetts Institute Of Technology Reversible, discontinuous volume changes of ionized isopropylacrylamide cells

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9182292B2 (en) 2005-04-29 2015-11-10 Prasidiux, Llc Stimulus indicating device employing polymer gels

Also Published As

Publication number Publication date
WO1992002005A2 (fr) 1992-02-06

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