AU2001284157A1 - Epilatory compositions - Google Patents
Epilatory compositionsInfo
- Publication number
- AU2001284157A1 AU2001284157A1 AU2001284157A AU2001284157A AU2001284157A1 AU 2001284157 A1 AU2001284157 A1 AU 2001284157A1 AU 2001284157 A AU2001284157 A AU 2001284157A AU 2001284157 A AU2001284157 A AU 2001284157A AU 2001284157 A1 AU2001284157 A1 AU 2001284157A1
- Authority
- AU
- Australia
- Prior art keywords
- epilatory
- composition
- epilatory composition
- composition according
- sheets
- 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
Description
EPILATORY COMPOSITIONS
This invention relates to an epilatory composition, its manufacture and use.
Epilatory compositions formed of viscoelastic materials are well known. The viscoelastic materials may in certain embodiments be rosin-based. In other embodiments they may be sugar-based. A tackifier, such as colophony, may be included to make them sticky.
In some products the epilatory compositions may be supplied in the form of strips, retained between cellophane sheets. The cellophane sheets may have coatings of poiyvinyl chloride, which acts as a barrier preventing the composition, or components of it, from migrating through the sheets; and also having the correct adhesive properties for use. In use, the user peels away one of the cellophane sheets, presses the epilatory strip firmly onto the area to be plucked, then pulls one end of the remaining cellophane sheet sharply away from the area. The hairs trapped in the composition are removed from the treated area along with, optimally, all of the composition, still attached to the remaining backing strip.
In an alternative approach a composition may be warmed, and then applied to the skin by means of a spatula or other applicator. Strips of fabric are then applied so that they adhere to the epilatory composition. The strips are then pulled sharply to remove the epilatory material, and hair, from the skin.
In both approaches the viscoelastic properties of the compositions are important. However this is particularly so in the case of the compositions supplied as strips, since these are applied to the skin at ambient temperature. At ambient temperature the compositions should be soft and pliable, such that they mould closely to the body shape . On the other hand they must not be so soft that they flow prior to use . When they are in place on the body and the user pulls the remaining backing strip, applying a high frequency strain rate to the compositions, their elastic properties should predominate over their viscous properties.
There is a particular problem with known compositions supplied in the form of strips, in meeting one of the requirements described in the previous paragraph. It is, that under warm ambient conditions the compositions may flow, and leak out from between the sheets. One approach to counter this has been to supply strips with considerably over-sized cellophane sheets. However, clearly, this approach is inadequate as a solution to a situation where there might be a substantial flow of a composition. It is also inefficient in terms of materials and transportation, and undesirable from a marketing perspective, in that consumers perceive that such a product is of poor value.
Accordingly, there is a need for an epilatory composition with improved resistance to flow of the composition, in warm environments, prior to use.
In accordance with a first aspect of the present invention there is provided an epilatory composition
comprising a matrix material in admixture with a particulate material .
The matrix material is suitably a gel-like material with adhesive properties.
The matrix material could be sugar-based. Examples of specifications describing epilatory compositions based on heating sugar (s) with acids (such as citric acid) are disclosed in GB 901624, GB 1242083, GB 2231494A, and GB
2157951A.
Preferably, however, the matrix material comprises a tackifying polymeric material, for example a tackifying aliphatic or aromatic resin. Preferably a tackifying polymeric material supplies at least 60% of the weight of the epilatory composition. Especially preferred is a rosinous material, for example a rosin ester and/or colophony.
Preferably the epilatory composition comprises at least 60% wt/wt of rosin or rosin-based materials, preferably at least 70% wt/wt, more preferably at least 80% wt/wt.
Preferably the epilatory composition is a so-called "cold" epilatory composition (that is, one which can be applied at ambient temperature without reheating) .
Preferably the particulate material is a colloidal material. Preferably it has particles of mean diameter 1- 200 nm, more preferably 5-100 nm, and most preferably 10- 50 n .
Preferably the particles are present in the epilatory material in an amount of at least 1% wt/wt, more preferably at least 2% wt/wt, and most preferably at least 3% wt/wt. Suitably they are present in an amount up to 40% wt/wt, preferably up to 20% wt/wt, and most preferably up to 10% wt/wt.
Preferred particulate materials for use in the present invention are siliceous materials. Especially preferred is fumed silica.
Fumed silica is currently manufactured in a process that involves flame hydrolysis of silicon tetrachloride, in an oxy-hydrogen flame. It is a colloidal form of silica having silanol . groups, able to participate in hydrogen bonding. Fumed silica typically comprises colloidal particles of mean diameter 1-200 nm. Preferably the fumed silica is of mean diameter 5-100 nm, more preferably 10-50 nm. The external surface area is typically in the range 15-380 m2/g. Fumed silicas are typically non-porous and thus have no internal surface area. They may be hydrophobic and of use in the present invention but preferred fumed silicas for use in the present invention are hydrophilic.
The epilatory composition may suitably comprise up to
40%, preferably up to 20%, of other components, which may include one or more of a natural wax, a fragrance, a polymer, an essential oil, a silicone oil, a colorant, an anti-oxidant or a paraffin or mineral oil.
In accordance with a second aspect of the present invention there is provided an epilatory composition comprising a rosinous material in admixture with particles of a material having silanol groups, the epilatory composition, when formed into sheets and not under applied stress, being shape-stable for a period of 6 months at all temperatures in the range 20-50 °C.
In accordance with a third aspect of the present invention there is provided an epilatory composition comprising a matrix material in admixture with particles of a material having silanol groups, the epilatory composition, when formed into sheets and not under applied stress, being shape-stable for a period of 6 months at all temperatures in the range 20-50 °C; whereas the corresponding matrix material not containing any said particles, when formed into flat sheets and not under applied stress, flows under its own weight at least some temperatures in the range 20-50 °C during a period of 6 months.
In accordance with a fourth aspect of the present invention there is provided an epilatory composition comprising a matrix material in admixture with modifier particles, wherein the composition is such that its elastic modulus exceeds its viscous modulus at all frequencies up to 0.1 rad/s at 50 °C.
Preferably the elastic modulus of the epilatory composition exceeds its viscous modulus at all frequencies up to 1 rad/s at 50 °C, more preferably at all frequencies up to 2 rad/s at 50 °C.
In certain embodiments, notably epilatory compositions having a sugar-based matrix material, the elastic modulus may exceed the viscous modulus at all frequencies up to 20 rad/s at 50°C.
Preferably at certain higher frequencies
(representative of the rapid removal of the epilatory composition from the user's skin), the elastic modulus also exceeds the viscous modulus, at temperatures within the temperature range 20-50 °C.
Preferably the elastic modulus exceeds the viscous modulus (when measured at 35 °C) at a frequency of at least 10,000 rad/s, more preferably at a frequency at least 5,000 rad/s.
Thus, preferably the epilatory composition is such that, at ambient temperatures, at low frequencies of applied stress the elastic modulus exceeds the viscous modulus; at high frequencies of applied stress the elastic modulus exceeds the viscous modulus; and at moderate frequencies, in between, the viscous modulus exceeds the elastic modulus. The epilatory composition in transit and storage corresponds to the low frequency condition, and the non-viscous nature of the composition aids shape stability in storage and transit; the application of the epilatory composition to the skin corresponds to the moderate frequency condition, and the viscous nature of the composition aids application and good contact with hair and skin; and pulling the epilatory composition sharply from the skin corresponds to the high frequency condition, the non-viscous, glassy nature of the composition aiding effective hair removal. The transition
between the low frequency condition and the moderate frequency condition is known as the gel point. The transition between the moderate frequency condition and the high strain rate condition is known as the glass transition.
The elastic modulus G' (sometimes known as the storage modulus) corresponds to the energy which can be stored and released by a bulk material . The viscous modulus G" (sometimes known as the loss modulus) corresponds to the energy dissipated by a bulk material due to friction between its macromolecules when it is deformed.
G' = σ cos δ Y
G" = σ sin δ Y
wherein σ is the stress amplitude, γ is the strain amplitude and δ is the out-of-phase coefficient.
The measurements quoted later are based on studies carried out into the rheology of the viscoelastic compositions in order to obtain a better understanding of their adhesive behaviour and their suitability as epilatory materials. These studies involved subjecting the materials to dynamic investigations in which a sinusoidal strain at defined frequencies was applied to the materials and the resulting output force was measured. In these studies a stress control rheometer was used, the SR rheometer commercially available from the company Rheometrics, using parallel plate geometry of 25 mm in diameter. The output force was found to include an in-
phase elastic component G'and an out-of-phase viscous component G" . The output force can be expressed as follows .
σ = σ sin (tω + δ)
= σ cosδ sin tω + σ cosδ costω
where ω is the test frequency and t is the time.
Within the linear stress-strain domain of the material G' is desirably lower than G" at moderate frequency oscillation in order to prevent the material cracking and to ensure that the material has strong adhesion at the material/hair interface. The values of G' and G" at moderate frequency oscillation are a measure of how readily the material wets the hairs. Moderate frequency oscillation is a long time process and corresponds to the time when the material is being applied to the skin. The lower values of G' and G" at this moderate frequency, the better the material wets the hairs. Thus the hairs become well embedded in the material in a very short time (ie the time needed for spreading the material on the skin) . However G' should be higher than G" at high frequency oscillation (which mimics the action of the user in rapidly pulling the strip from the body) in order to remove hairs efficiently. Also, at low frequency oscillation, or no oscillation, G' is preferably higher than G" , in accordance with this invention, in order to obtain the benefit of enhanced stability, even when warm.
The definitions given herein refer to stresses applied to the material within its linear stress-strain domain, which may typically be up to a few thousand Pa.
By ensuring that the epilatory composition satisfies the above parameters, it can be readily applied to the skin at body temperature, yet it is very efficient at removing hairs from the skin and, surprisingly, the user experiences less pain.
References in this specification to a material not under applied stress are to a material in the form of a flat sheet, resting on a horizontal surface.
Whilst we are not bound by any theory, we believe that the particles form a network throughout the epilatory composition, providing a structure or backbone which inhibits the flow of the composition, at warm temperatures. Thus, we do not regard the invention as limited to epilatory compositions based on rosin compositions and/or fumed silica particles; we do not believe that the improvement achieved by the invention depends fundamentally upon the interaction between the particles and the matrix material.
If wished the epilatory composition of the present invention may be provided in a container, from which the user removes it using, for example, a spatula or an applicator fitted to the container, and applies it to the skin. A fabric can then be used to pull the applied material in one piece from the skin. Alternatively, and preferably, the epilatory composition is supplied in the form of strips, sandwiched between sheets, for example of cellophane, or paper or another non-woven material. In use, one sheet is removed from a strip of epilatory composition and that strip is then applied to the skin
with the remaining sheet uppermost . The end of that sheet is grasped and pulled sharply, to remove the strip of epilatory composition from the skin, along with hairs with which it is in contact.
Because the epilatory composition does not flow even under very warm ambient conditions it may be applied to a sheet during manufacture so as to cover a larger area of the sheet, than has been achieved, with prior epilatory compositions. Preferably it covers at least 60% of the area of the sheet, more preferably at least 80%, most preferably at least 90%.
In accordance with a fifth aspect there is provided an epilatory product, comprising an epilatory composition as defined above. Preferably the product comprises epilatory strips sandwiched between sheets, as herein described, and which are peelable from the epilatory strips.
In accordance with further aspects there is provided a method of manufacturing an epilatory composition, as defined above, or an epilatory product, as defined above; and a method of epilation, using such a composition or product .
Any of the features set forth in the second, third, fourth and fifth aspect and not in the first aspect may be regarded as preferred features of the first aspect .
The invention will now be further described, by way of example .
Example 1
A composition was made with the following ingredients,
DERTOLINE RC is a rosin esterified with glycerol, and is available from DRT.
GRANOLITE 150N is a rosin esterified with triethylene glycol, and is available from DRT.
ELWAX 40W is an ethyl vinyl acetate, available from Du
Pont.
HDK N20 is a fumed silica powder available from Wacker.
The DERTOLINE was preheated to 60 °C. The GRANOLITE and ELWAX were added to the vessel . The temperature was raised to 70 °C while mixing took place. HDK N20 was added and homogenised with a high speed turbine, at a speed of
1100 rpm.
The resulting product, at ambient temperature, had the appearance of a viscous liquid-gel. The gel point at 50°C (G' = G") was at the frequency (ω) 2 rad/s and at this temperature G' exceeded G" at frequencies below 2 rad/s, as measured using the SR rheometer, mentioned above. Example 2
The DERTOLINE was preheated to 60 °C. The GRANOLITE and thick mineral oil were added, and the materials heated to 70 °C with mixing. The HDK N20 was added, and homogenised with a high speed turbine, operated at a speed in excess of 1000 rpm. The dye, perfume and anti-oxidant were introduced after cooling to 40 °C.
The resulting epilatory composition was a viscous liquid-gel. Its viscosity (at 35°C, shear rate 10s"1, tool : parallel plate of 25 mm) was 284 Pa.s. Its gel point at 50 °C (G' = G" ) was at the frequency (ω) 1.95 rad/s and at this temperature G' exceeded G" at frequencies below 1.95 rad/s, as measured using the SR rheometer.
Example 3
Isothermal tests were performed on various cold epilatory composition containing different amounts of fumed silica to evaluate the impact of the fumed silica on the gel formation.
Resin base
AEROSIL 200 is another fumed silica product, very similar to HDK N20, and available from Degussa.
DERTOLINE G5 is another grade of rosin esterified with glycerol .
The epilatory composition was provided as a piece 60 mm x 120 mm x 1 mm between two cellophane sheets, themselves of area 110 mm x 180 mm.
Strips were placed at different temperatures, namely 20°C, 40°C and 50°C and the time required for the epilatory composition to leak out through or past the cellophane sheet was measured.
The results were as follows:
A "no leakage" result means there was no leakage over a 3 month period. No leakage after 3 months represents an excellent result, especially at 50 °C.
Example 4
A sugar-based epilatory material was prepared using the following ingredients :
The process was as follows.
In a vessel citric acid and water were mixed at 60 °C. Once they formed a solution white granular sugar was added
under constant stirring. The temperature was raised to 120°C. After 10 minutes at this temperature, the mixture was allowed to cool to 60°C. Then the HDK N20 was added and the composition homogenised using a high speed turbine at 1000 rp . Finally the potassium hydroxide was added under stirring. The resulting product at ambient temperature had the appearance of a viscous gel. Its gel point at 25°C (G'=G") was at the frequency 20 rad/s. At 25°C G' exceeded G" at frequencies below 20 rad/s as measured using the SR Rheometer.
Example 5
An epilatory material was prepared, similar to that of Example 1 and blended in the same way, but with GRANOLITE
150N, a rosinous material, replaced by ATDAC LVE, a hydrocarbon resin based on aliphatic monomers of petroleum origin, from Hercules. The ingredients were as follows:
The resulting epilatory composition at ambient temperature had the appearance of a viscous liquid-gel. Its gel point at 50 °C was at the frequency 5 rad/s.
Claims (14)
1. An epilatory composition comprising a matrix material in admixture with a particulate material.
2. An epilatory material according to claim 1, wherein the particulate material is colloidal .
3. An epilatory composition according to claim 1 or 2 , wherein the matrix material comprises a rosinous material .
4. An epilatory composition according to claim 3, wherein the rosinous material comprises at least 60% of the weight of the epilatory composition.
5. An epilatory composition according to claim 1 or 2 , wherein the matrix material is a sugar-based material .
6. An epilatory composition according to any preceding claim, wherein the particulate material supplies at least
1% of the weight of the epilatory composition.
7. An epilatory composition according to any preceding claim, wherein the particulate material supplies up to 40% of the weight of the epilatory composition.
8. An epilatory composition according to any preceding claim, wherein the particulate material is a siliceous material .
9. An epilatory composition according to claim 8, wherein the particulate material is fumed silica.
10. An epilatory composition comprising a rosinous composition in admixture with particles of a material having silanol groups, the epilatory composition, when formed into sheets and not under applied stress, being shape-stable for a period of 6 months at all temperatures in the range 20-50°C.
11. An epilatory composition comprising a matrix material in admixture with particles of a material having silanol groups, the epilatory composition, when formed into sheets and not under applied stress, being shape-stable for a period of 6 months at all temperatures in the range 20- 50 °C; whereas the corresponding matrix material not containing any said particles, when formed into sheets and not under applied stress, flows under its own weight at least some temperatures in the range 20-50 °C, during a period of 6 months .
12. An epilatory composition comprising a matrix material in admixture with modifier particles, wherein the composition is such that its elastic modulus exceeds its viscous modulus at all frequencies up to 0.1 rad/s at 50°C.
13. An epilatory product comprising epilatory strips formed of an epilatory composition according to any preceding claim, the epilatory strips being sandwiched between sheets which are peelable from the strips.
14. An epilatory composition or product substantially as hereinbefore described with particular reference to the examples .
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0019651.9A GB0019651D0 (en) | 2000-08-10 | 2000-08-10 | Compositions |
GB0019651.9 | 2000-08-10 | ||
PCT/GB2001/003580 WO2002011687A2 (en) | 2000-08-10 | 2001-08-09 | Epilatory compositions |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2001284157A1 true AU2001284157A1 (en) | 2002-05-16 |
AU2001284157B2 AU2001284157B2 (en) | 2006-09-07 |
Family
ID=9897349
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU8415701A Pending AU8415701A (en) | 2000-08-10 | 2001-08-09 | Epilatory compositions |
AU2001284157A Ceased AU2001284157B2 (en) | 2000-08-10 | 2001-08-09 | Epilatory compositions |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU8415701A Pending AU8415701A (en) | 2000-08-10 | 2001-08-09 | Epilatory compositions |
Country Status (15)
Country | Link |
---|---|
US (3) | US20050220746A2 (en) |
EP (1) | EP1309308B1 (en) |
CN (1) | CN1199631C (en) |
AR (1) | AR030337A1 (en) |
AT (1) | ATE343417T1 (en) |
AU (2) | AU8415701A (en) |
BR (1) | BR0113157B1 (en) |
CA (1) | CA2418963C (en) |
DE (1) | DE60124109T2 (en) |
ES (1) | ES2257229T3 (en) |
GB (2) | GB0019651D0 (en) |
MX (1) | MXPA03001077A (en) |
PL (1) | PL204306B1 (en) |
WO (1) | WO2002011687A2 (en) |
ZA (1) | ZA200301067B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2385270B (en) * | 2002-02-13 | 2004-12-22 | Reckitt Benckiser | An epilatory composition comprising an adhesive matrix material and a branched polyalkene |
GB2414182A (en) | 2004-05-20 | 2005-11-23 | Reckitt Benckiser | Improvements in or relating to epilatory compositions |
GB2446576A (en) * | 2007-02-19 | 2008-08-20 | Reckitt Benckiser | Epilatory compositions |
KR100986134B1 (en) * | 2008-07-15 | 2010-10-07 | 주식회사 다이트라 | A composition for removing feathers of poultry and a method of preparation thereof |
US20140132623A1 (en) | 2011-05-06 | 2014-05-15 | SynerScope B.V. | Data analysis system |
CA2880456A1 (en) | 2012-08-15 | 2014-02-20 | Tris Pharma, Inc. | Methylphenidate extended release chewable tablet |
KR20150095857A (en) | 2012-12-11 | 2015-08-21 | 세키스이 스페셜티 케미칼스 아메리카 엘엘씨 | Pvoh copolymers for personal care applications |
US8828371B2 (en) | 2012-12-12 | 2014-09-09 | Normajean Fusco | Antibacterial hair removal composition |
EP2767311B1 (en) * | 2013-02-14 | 2018-01-10 | The Procter & Gamble Company | Stable personal care article |
SE1500134A1 (en) | 2015-03-13 | 2016-09-14 | Scrow Ab | Bird-repellent composition |
GB2536642B (en) * | 2015-03-23 | 2018-08-22 | Reckitt Benckiser Brands Ltd | Epilatory compositions |
US10623846B2 (en) * | 2016-12-06 | 2020-04-14 | Bose Corporation | Earpieces employing viscoelastic materials |
RU2704036C1 (en) * | 2018-10-05 | 2019-10-23 | Екатерина Сергеевна Пигалева | Sugar paste for depilation |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB941081A (en) * | 1961-03-22 | 1963-11-06 | Hampstead House Ltd | Improvements relating to epilatories |
CA1048208A (en) * | 1977-03-21 | 1979-02-13 | Trevor P. Clark | Allweather log marker and lumber end sealer |
US4282877A (en) * | 1979-02-26 | 1981-08-11 | Alleghany Pharmacal | Hair removing arrangement |
US4631064A (en) * | 1982-06-01 | 1986-12-23 | The Proctor & Gamble Company | Depilatory compositions |
JPS6097912A (en) * | 1983-10-31 | 1985-05-31 | Shiseido Co Ltd | Wax for removal of hair |
GB8411045D0 (en) * | 1984-04-30 | 1984-06-06 | Cotran H J H | Depilatory preparation |
FR2578419B1 (en) * | 1985-03-05 | 1987-05-15 | Rhone Poulenc Spec Chim | EPILATORY PRODUCT COMPRISING AN ORGANOPOLYSILOXANIC CROSSLINKABLE COMPOSITION WITH AMBIENT TEMPERATURE IN A SILICONE ELASTOMER AND METHOD OF DEPILATION USING THE SAME |
FR2594689B1 (en) * | 1986-02-24 | 1988-06-24 | Lcm Arsene Valere | REUSABLE DEPILATING WAX AND PROCESS FOR OBTAINING SAME |
JPS63115806A (en) * | 1986-10-31 | 1988-05-20 | G C Dental Ind Corp | Production of dental zinc oxide eugenol cement composition |
EP0266921A3 (en) * | 1986-11-06 | 1990-05-30 | Shiseido Company Limited | Skin irritation alleviation agent and composition thereof |
FR2617708B1 (en) * | 1987-07-06 | 1990-04-20 | Garets Christian Des | NEW EPILATORY COMPOSITION |
FR2656524A1 (en) * | 1989-12-29 | 1991-07-05 | Ceresine Sa | Water-removable cold-depilating wax and process for its manufacture |
CA2042693A1 (en) * | 1990-06-07 | 1991-12-08 | Daniel J. Halloran | Silicone mechanical emulsions for hair care |
GB9123076D0 (en) * | 1991-10-31 | 1991-12-18 | Boots Co Plc | Depilatory compositions |
US5417966A (en) * | 1992-06-01 | 1995-05-23 | Gc Corporation | Depilatory composition |
FR2722093B1 (en) * | 1994-07-11 | 1996-08-23 | Oreal | SOLID DEPILATORY COMPOSITION CONTAINING A PARTICULATE STRUCTURING AGENT |
US6231259B1 (en) * | 1996-07-26 | 2001-05-15 | The Gillette Company | Viscous product dispenser with porous dome |
GB9708182D0 (en) * | 1997-04-23 | 1997-06-11 | Dow Corning Sa | A method of making silicone in water emulsions |
JP4377526B2 (en) * | 1999-06-08 | 2009-12-02 | クラシエホームプロダクツ株式会社 | Hair removal agent and hair removal sheet |
US6419956B1 (en) * | 1999-12-30 | 2002-07-16 | Ancile Pharmaceuticals | Odor-masking coating for a pharmaceutical preparation |
-
2000
- 2000-08-10 GB GBGB0019651.9A patent/GB0019651D0/en not_active Ceased
-
2001
- 2001-08-09 PL PL365004A patent/PL204306B1/en unknown
- 2001-08-09 AT AT01963123T patent/ATE343417T1/en not_active IP Right Cessation
- 2001-08-09 AU AU8415701A patent/AU8415701A/en active Pending
- 2001-08-09 GB GB0119410A patent/GB2369573B/en not_active Expired - Fee Related
- 2001-08-09 WO PCT/GB2001/003580 patent/WO2002011687A2/en active IP Right Grant
- 2001-08-09 CA CA002418963A patent/CA2418963C/en not_active Expired - Lifetime
- 2001-08-09 AR ARP010103825A patent/AR030337A1/en unknown
- 2001-08-09 ES ES01963123T patent/ES2257229T3/en not_active Expired - Lifetime
- 2001-08-09 AU AU2001284157A patent/AU2001284157B2/en not_active Ceased
- 2001-08-09 EP EP01963123A patent/EP1309308B1/en not_active Expired - Lifetime
- 2001-08-09 MX MXPA03001077A patent/MXPA03001077A/en active IP Right Grant
- 2001-08-09 DE DE60124109T patent/DE60124109T2/en not_active Expired - Lifetime
- 2001-08-09 BR BRPI0113157-5B1A patent/BR0113157B1/en not_active IP Right Cessation
- 2001-08-09 CN CNB018139841A patent/CN1199631C/en not_active Expired - Fee Related
-
2003
- 2003-02-07 ZA ZA200301067A patent/ZA200301067B/en unknown
- 2003-07-25 US US10/343,808 patent/US20050220746A2/en not_active Abandoned
-
2011
- 2011-04-13 US US13/085,990 patent/US20110185517A1/en not_active Abandoned
-
2013
- 2013-06-05 US US13/910,809 patent/US20130263388A1/en not_active Abandoned
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