EP0920353A1 - Aqueous solution compositions comprising polymer hydrogel compositions - Google Patents

Aqueous solution compositions comprising polymer hydrogel compositions

Info

Publication number
EP0920353A1
EP0920353A1 EP97919017A EP97919017A EP0920353A1 EP 0920353 A1 EP0920353 A1 EP 0920353A1 EP 97919017 A EP97919017 A EP 97919017A EP 97919017 A EP97919017 A EP 97919017A EP 0920353 A1 EP0920353 A1 EP 0920353A1
Authority
EP
European Patent Office
Prior art keywords
hydrogel
polymer
composition
aqueous solution
polymers
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
EP97919017A
Other languages
German (de)
English (en)
French (fr)
Inventor
Liang Sheng Tsaur
Shiji Shen
Margaret 145 Heath Road JOBLING
Michael Paul Aronson
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.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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
Priority claimed from US08/703,116 external-priority patent/US5726138A/en
Priority claimed from US08/703,747 external-priority patent/US5759969A/en
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Publication of EP0920353A1 publication Critical patent/EP0920353A1/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • 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
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/0052—Preparation of gels
    • B01J13/0065—Preparation of gels containing an organic phase

Definitions

  • the present invention relates to novel large hydrogel particles suspended in an aqueous medium and to a continuous extrusion/mixing process for making these kind of hydrogel particles.
  • the hydrogel particles comprise two different high molecular weight polymers. One is insoluble in the aqueous medium and is used for network formation and gel integrity. The other is soluble in the aqueous medium and helps control gel swelling and gel strength. Water insoluble materials are entrapped or encapsulated inside the network formed by these two polymers and are thus more efficiently delivered from the aqueous composition ⁇ e.g., liquid cleanser containing the hydrogel particles).
  • Gel particles with controllable size and controllable gel strength are prepared simply by first adding (e.g.
  • these domains are capable of trapping water insoluble agents, hereafter designated the "benefit agent", within the gel structure, i.e., inside a web or network formed by the network forming polymer (s) and the property modifying polymer(s).
  • the hydrogel composition must have sufficient gel strength (generally provided by the first network forming polymer(s)) to retain the integrity of the discrete domains, and to trap and hold the insoluble benefit agent (s) during processing and storage of the aqueous composition.
  • the hydrogel must also be soft enough and capable of disintegrating smoothly when the composition is applied to and rubbed onto the intended substrate, such as skin, without causing any undesirable feeling of foreign matter or grittiness, due to the breaking or due to the components of the hydrogel particles.
  • the softness of the gel particles can be manipulated by the amount of property modifying polymer (s) and network forming polymer (s) incorporated into the gel composition.
  • Polymer systems useful for forming hydrogels (component d) above) with desirable properties comprise in turn (a) a first polymer which is soluble in water but msolubilizes when placed in an aqueous solution composition (component (ui) above); and (b) a second property modifying polymer which ensures the final hydrogel composition is not so strong that it will not disintegrate smoothly when the hydrogel s applied to a substrate, e.g., skin, and but still has sufficient gel strength to retain the benefit agent during processing and storage.
  • a substrate e.g., skin
  • Thermal gel a tion Suitable polymers that exhibit this type of gelling behavior are those that are soluble in water at a temperature higher than about 40-50°C and which form a gel after the polymer solution is cooled to room temperature.
  • examples of such polymers include: l) gel forming polysaccharides such as carrageenans or agars.
  • Particularly preferred polymers of this type are the carrageenan polymers.
  • Particularly suitable carrageenans are those manufactured by the FMC corporation and sold under the trade name Gelcar GP911, and Gelcarin 379; n) gel forming proteins.
  • a second function of the property modifying polymer concerns its effect on gel strength.
  • the hydrogel composition is sufficiently strong such that the dispersed hydrogel domains/particles remain discrete in order to effectively trap the benefit agent within their structure, yet that they be sufficiently soft (non-rigid) that the hydrogel domains/particles rub smoothly into the skin during product use. This balance can be achieved by optimizing the polymer composition of the hydrogel .
  • the amounts of silicone and skin adhering to the tape were determined by means of X-ray fluorescence spectroscopy
  • the tape strips were placed in an X-ray fluorescence spectrometer with the adhesive side facing the beam ot this machine.
  • a mask is applied over the tape to define a standardized area in the middle of the tape which was exposed to the X-ray beam.
  • the sample chamber of the machine was placed under vacuum before making measurements and the spectrometer was then used to measure the quantities of silicone and sulphur The sulphur was representative of the amount of skin which had transferred to the tape.
  • Example 3 The extrusion process described in Example 3 was used to prepare 17 wt% dispersion (2.55 wt% Cholesterol based on the total composition) of the hydrogel. Same surfactant system as Example 3 (Table 3) was used for the preparation. Deposition of Cholesterol from this cleansing composition was determined in Example 13. A comparative example containing 2.5 wt%
  • Control 1 is liquid cleanser contains 2.5 wt . % well dispersed cholesterol.
  • the composition and preparation are given in Table 9.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cosmetics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Colloid Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
EP97919017A 1996-08-26 1997-08-19 Aqueous solution compositions comprising polymer hydrogel compositions Ceased EP0920353A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/703,116 US5726138A (en) 1996-08-26 1996-08-26 Aqueous solution compositions comprising polymer hydrogel compositions
US08/703,747 US5759969A (en) 1996-08-27 1996-08-27 Process for making aqueous solution compositions comprising polymer hydrogel compositions
US703747 1996-08-27
PCT/EP1997/004751 WO1998008601A1 (en) 1996-08-26 1997-08-19 Aqueous solution compositions comprising polymer hydrogel compositions
US703116 2010-02-09

Publications (1)

Publication Number Publication Date
EP0920353A1 true EP0920353A1 (en) 1999-06-09

Family

ID=27107077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97919017A Ceased EP0920353A1 (en) 1996-08-26 1997-08-19 Aqueous solution compositions comprising polymer hydrogel compositions

Country Status (11)

Country Link
EP (1) EP0920353A1 (cs)
JP (1) JP3892048B2 (cs)
KR (1) KR20000035850A (cs)
CN (1) CN1234751A (cs)
AR (1) AR009330A1 (cs)
AU (1) AU714022B2 (cs)
BR (1) BR9711968A (cs)
CA (1) CA2265465C (cs)
CZ (1) CZ67299A3 (cs)
PL (1) PL331836A1 (cs)
WO (1) WO1998008601A1 (cs)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9807269D0 (en) * 1998-04-03 1998-06-03 Unilever Plc Detergent compositions
GB9807271D0 (en) * 1998-04-03 1998-06-03 Unilever Plc Hair treatment compositions
JP4224922B2 (ja) * 2000-03-27 2009-02-18 日本ゼオン株式会社 重合体粒子水分散液の製造方法
US20020034525A1 (en) 2000-06-30 2002-03-21 Kao Corporation Skin cosmetic composition
GB0026473D0 (en) 2000-10-30 2000-12-13 Unilever Plc Shear gel compositions
DE10127104A1 (de) 2001-06-02 2002-12-05 Wella Ag Zweiphasiges Haargel
GB0201743D0 (en) * 2002-01-25 2002-03-13 Unilever Plc Cosmetic or personal care composition
GB0404326D0 (en) * 2004-02-27 2004-03-31 Reckitt Benckiser Uk Ltd Method and apparatus
CN102764198A (zh) * 2011-05-06 2012-11-07 强生消费者公司 包含水凝胶颗粒的组合物
CN102488636A (zh) * 2011-12-22 2012-06-13 吴江市德佐日用化学品有限公司 一种洗手液
US10123957B2 (en) 2014-09-03 2018-11-13 Conopco, Inc. Transparent cosmetic and personal care compositions
WO2016034521A1 (en) * 2014-09-03 2016-03-10 Unilever Plc Transparent compositions
KR102073653B1 (ko) * 2019-06-07 2020-02-06 (주)진코스텍 피부 세정용 하이드로겔 조성물, 이를 이용한 피부 세정용 하이드로겔 비드 및 그 제조방법
KR102123608B1 (ko) * 2019-07-19 2020-06-15 (주)진코스텍 하이드로겔을 함유하는 스크럽 조성물
CN110736420B (zh) * 2019-09-19 2020-09-11 北京科技大学 一种便携式自供能水凝胶应变传感器的制备方法
CN111110586B (zh) * 2020-01-09 2022-06-10 厦门市斯维特日用品有限公司 一种洗护用品内蛋白组合物的制备方法
CN113087837B (zh) * 2021-04-06 2022-04-12 河南工业大学 超分子-聚合物双网络低共熔凝胶及其制备方法与应用

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777089A (en) * 1985-05-08 1988-10-11 Lion Corporation Microcapsule containing hydrous composition
US4908233A (en) * 1985-05-08 1990-03-13 Lion Corporation Production of microcapsules by simple coacervation
US5089269A (en) * 1987-11-07 1992-02-18 Shiseido Company Ltd. Cosmetic containing fine soft microcapsules

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996029979A1 (en) * 1995-03-29 1996-10-03 Unilever Plc Liquid cleanser compositions

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777089A (en) * 1985-05-08 1988-10-11 Lion Corporation Microcapsule containing hydrous composition
US4908233A (en) * 1985-05-08 1990-03-13 Lion Corporation Production of microcapsules by simple coacervation
US5089269A (en) * 1987-11-07 1992-02-18 Shiseido Company Ltd. Cosmetic containing fine soft microcapsules

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9808601A1 *

Also Published As

Publication number Publication date
CA2265465C (en) 2006-03-14
CN1234751A (zh) 1999-11-10
WO1998008601A1 (en) 1998-03-05
CZ67299A3 (cs) 1999-11-17
AU4300697A (en) 1998-03-19
AR009330A1 (es) 2000-04-12
AU714022B2 (en) 1999-12-16
PL331836A1 (en) 1999-08-02
BR9711968A (pt) 1999-08-24
KR20000035850A (ko) 2000-06-26
JP3892048B2 (ja) 2007-03-14
JP2001502365A (ja) 2001-02-20
CA2265465A1 (en) 1998-03-05

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