WO1998030195A1 - Back injection molding process - Google Patents
Back injection molding process Download PDFInfo
- Publication number
- WO1998030195A1 WO1998030195A1 PCT/US1998/000497 US9800497W WO9830195A1 WO 1998030195 A1 WO1998030195 A1 WO 1998030195A1 US 9800497 W US9800497 W US 9800497W WO 9830195 A1 WO9830195 A1 WO 9830195A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- powder
- slurry
- solvent
- group
- mixtures
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/26—Aluminium; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/25—Silicon; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
- A61Q1/08—Preparations containing skin colorants, e.g. pigments for cheeks, e.g. rouge
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/12—Face or body powders for grooming, adorning or absorbing
Definitions
- the present invention relates generally to a back injection molding process. More particularly, the invention relates to a back injection molding process that does not use volatile organic compounds (VOCs). Specifically, the process does not use volatile hydrocarbons or alcohols as solvents for forming the slurry from which the molded item is formed. Most particularly, the invention is directed to a method of molding cosmetic compositions into suitable shapes using a back injection molding process in which a solvent, preferably water, is used to form a slurry with powdered cosmetic ingredients. The slurry is then molded in a pan to the desired shape using the back injection molding process.
- VOCs volatile organic compounds
- Back injection molding processes and apparatus for conducting same are known in the art. Specifically, back injection molding machinery is available in the United States from the Nanyo Company of Japan. In such a back injection molding process, powdered components are mixed and pulverized to form a powdered mixture, which is then combined with a solvent to form a slurry. The slurry is fed into the back injection molding apparatus, which injects the slurry into a mold of the desired shape, to form a molded cosmetic product.
- VOCs volatile organic compounds
- the present process contains no VOCs. Therefore, it provides a simplified processing environment or area, namely there is no need for special air handling equipment and techniques.
- a back injection molding process in which a slurry to be molded is formed by combining powdered components and a solvent.
- the solvent is preferably either a solution of water and a surface active agent, or an emulsion of (1) at least one oil, ester or silicone and (2) water.
- a preferred use of the back injection molding process is to form molded cosmetic products such as a blush, eyeshadow, foundation, lipstick, eyebrow liner, mascara, or the like, that simulate the aesthetic properties of cosmetics formed using the prior art volatile organic compounds, but does not contain a volatile organic compound, and can be produced using currently available back injection molding machinery.
- Fig. 1 is a block diagram of a first embodiment of the inventive process, in which a solution of water and surface active agent is used as a solvent;
- Fig. 2 is a block diagram of a second embodiment of the invention in which the solvent is an oil in water emulsion.
- the present invention provides a novel back injection molding process in which one or more powdered components are combined with a solvent that is not a volatile organic compound to form a slurry.
- a solvent is non-volatile for purposes of this invention.
- a solvent is or includes water. It is preferred that the water used in the present invention be demineralized, having no ionic character.
- the formed slurry is injected into a pan or other container (collectively referred to as a pan herein) and dried to form a molded body in the pan.
- the solvent used to form the slurry contains no volatile organic compounds (VOCs), thereby alleviating environmental and consumer safety concerns. In addition, the costs associated with the process are lowered.
- VOCs volatile organic compounds
- this process can be used to form a variety of molded compositions, it is particularly useful in the formation of molded cosmetic compositions, such as a blush, eyeshadow, foundation, lipstick, eyebrow liner, mascara, or the like.
- a solvent must be selected that will provide a molded cosmetic composition that will simulate the aesthetic properties of cosmetics formed with the previously used volatile solvents .
- Equipment for conducting back injection molding processes is known. Such machinery is available, for example, from the Nanyo Company of Japan. The process of the invention can be conducted on such presently available equipment without the need for modification.
- the back injection molding (BIM) process can best be understood with reference to Fig. 1.
- powdered component ingredients are, in a first stage, blended and pulverized 1. Pearls are then added and the powdered components are blended a second time
- a liquid binder is then sprayed 3 onto the mixed powder.
- the mixed powder with binder is then blended and pulverized 4 again.
- the mixed powder with binder is combined with a solvent 5, and mixed, for example, in a planetary mixer, to form a slurry.
- the solvent is water and a surfactant.
- the slurry is injected 6 via pressure using the back injection molding machine into a pan while optionally applying vacuum and then drying to remove excess solvent.
- the application of vacuum can be used to draw excess solvent from the slurry. Drying is preferably achieved by ambient temperature air drying, but other methods of drying, such as heating, can also be used.
- any combination of the foregoing solvent removal methods can be used.
- the pan is formed with holes in the bottom thereof through which the slurry composition can be injected.
- Fig. 2 illustrates a second embodiment of the invention, with similar steps bearing the same reference numbers as in Fig. 1.
- powdered components are blended and pulverized 1. Pearls are then added, and the powdered components are blended a second time 2.
- the mixed powder is combined with a solvent 5, and mixed, for example, in a planetary mixer, to form a slurry.
- the solvent is an oil in water emulsion.
- the slurry is injected 6 via pressure using the back injection molding machine into a pan, while optionally applying vacuum and then drying to remove excess solvent, to form an item, such as a molded body in the pan.
- the pan is formed without a bottom. Nonetheless, the slurry is injected through the open bottom. The pan is removed from the machine, and the molded body, while in the pan, is allowed to dry.
- the molded body in the pan is placed in a suitable container, such as a cosmetic compact .
- the present process employs either (1) a solution of a surface active agent (surfactant) in water, or (2) an oil in water emulsion comprised of water and at least one ester, oil and/or silicone.
- a surface active agent surfactant
- anionic, nonionic and amphoteric surfactants or surface active agents can be used.
- the surfactant can be mixed with the water, or incorporated onto the powdered components prior to wetting.
- the suitable anionic surfactants include, but are not limited to, sodium lauryl sarcosinate and sodium laureth sulfate, or mixtures thereof.
- the suitable nonionic surfactants include, but are not limited to, dimethicone copolyol, Poloxamer 184 and mixtures thereof; while the suitable amphoteric surfactants include, but are not limited to, lauramidopropyl betaine, cocamidopropyl hydroxysultaine and mixtures thereof. It is believed that cationic surfactants may be used. However, it is believed that cationic surfactants are not as suitable due to the pigments used in cosmetics.
- the powdered components of the cosmetic material are those generally known in the art. They can include, for example, (a) fillers, such as talc, mica, nylon powder, and sericite; (b) preservatives; and (c) colorants, such as pigments and/or pearls.
- the powdered components can be precontacted with a liquid binder including at least one oil, ester and/or silicone. The powdered components are thoroughly mixed and pulverized before introduction of the solvent.
- the solvent When the solvent is formed of a surface active agent in water, this solvent comprises: about 25% to about 99.9% water, and an amount of surface active agent of about 0.10% to 25%.
- the mixed powdered components can be about 10% to about 90%, preferably about 35% to about 65%, and most preferably about 50%, of the total slurry weight with the remainder being solvent.
- the mixed powdered components will comprise about 20% to about 70% fillers, about 0.5% to about 1.0% preservatives, zero to about 50% colorants, and about zero to about 20% of a liquid binder, based on the total weight of the mixed powder component.
- the solvent when the solvent is an oil in water emulsion, the solvent comprises: about 25% to about 90% water, about 0.01% to about 25% of emulsifiers and about 0.01% to about 25% of ester/oil/silicone.
- the mixed powdered components can be about 10% to about 90%, preferably about 35% to about 65%, and most preferably about 50%, of the total slurry weight with the remainder being solvent.
- the mixed powdered components will comprise: about 30% to about 99% fillers, about 0.5% to about 1.0% preservatives, and zero to about 80% colorants, based on the total weight of the mixed powder component.
- test data demonstrate the properties of cosmetics formed using the process described above. Comparative examples are designated throughout as “(comp.)” or “control”.
- Back Injection B#l includes:
- Example 1 The slurries of Examples 1, 2 and 3 displayed a good consistency, while the slurry of Example 4 (the comparative example, using a standard volatile solvent; was thin. When molded into products, each slurry provided an aesthetically acceptable cosmetic that was powdery and sheer. The slurries of Examples 1 and 2 provided a similar color. The color of the product formed with the slurry of Example 3 was bleached out.
- Example 4 The product formed with the slurry of comparative Example 4 felt best.
- the slurry of Example 1 provided a better product compared to the slurries of Examples 2 and 3. Processing conditions of 3.75 or 4.5 second injection time, in combination with 3.5 kg/cm 2 pressure and 1 second paper advance, were preferred and provided the best results.
- Powder Phase 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
- Powder Phase B#A24 includes:
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53118198A JP2002513395A (en) | 1997-01-10 | 1998-01-08 | Back injection molding method |
AU62396/98A AU6239698A (en) | 1997-01-10 | 1998-01-08 | Back injection molding process |
EP98904547A EP0999821A1 (en) | 1997-01-10 | 1998-01-08 | Back injection molding process |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3521297P | 1997-01-10 | 1997-01-10 | |
US139297A | 1997-12-31 | 1997-12-31 | |
US60/035,212 | 1997-12-31 | ||
US09/001,392 | 1997-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998030195A1 true WO1998030195A1 (en) | 1998-07-16 |
Family
ID=26668978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/000497 WO1998030195A1 (en) | 1997-01-10 | 1998-01-08 | Back injection molding process |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0999821A1 (en) |
JP (1) | JP2002513395A (en) |
WO (1) | WO1998030195A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2779960A1 (en) * | 1998-06-23 | 1999-12-24 | Talc De Luzenac | Solid products made by impregnating a hydrophobic mineral powder such as talc with a volatile liquid binder and pressing the mixture |
FR2815250A1 (en) * | 2000-10-16 | 2002-04-19 | Oreal | Skin make-up composition, comprises in aqueous medium, film-forming polymer, non-ionic surfactant in form of block copolymer of polyethylene glycol and polypropylene glycol, and powdered colorant |
WO2002072044A2 (en) * | 2001-03-13 | 2002-09-19 | L'oreal | Solid composition containing solid particles comprising at least one part fibres |
WO2002072045A2 (en) * | 2001-03-13 | 2002-09-19 | L'oreal | Solid composition containing at least 75 % by weight of solid particles and at least one non-volatile liquid oil |
WO2002072046A2 (en) * | 2001-03-13 | 2002-09-19 | L'oreal | Solid composition containing colouring material and at least 75 % by weight of solid particles |
KR100615142B1 (en) * | 2000-01-19 | 2006-08-22 | 주식회사 엘지생활건강 | A solid cosmetic composition and a process thereof |
FR2967350A1 (en) * | 2010-11-15 | 2012-05-18 | Oreal | SOLID COSMETIC COMPOSITION IN THE FORM OF COMPACT POWDER |
FR2967351A1 (en) * | 2010-11-15 | 2012-05-18 | Oreal | SOLID COSMETIC COMPOSITION IN THE FORM OF COMPACT POWDER |
US20120301629A1 (en) * | 2010-02-10 | 2012-11-29 | Yun Bong Kim | Hard coating forming method |
FR2982153A1 (en) * | 2011-11-03 | 2013-05-10 | Oreal | Non-therapeutic solid makeup and/or care cosmetic composition, useful to coat skin, preferably face, comprises pulverulent phase, emulsifying system, hydrophilic gelling agent, and hollow particles of expanded (co)polymeric acrylonitrile |
WO2013064452A1 (en) * | 2011-11-03 | 2013-05-10 | L'oreal Sa | Solid cosmetic composition in compact powder form |
FR2985181A1 (en) * | 2012-01-02 | 2013-07-05 | Oreal | Solid make up and/or care composition in compact powder form, useful to coat skin, preferably face, comprises pulverulent phase, hydrophilic gelling agent, organic lacquer, and emulsifying system including nonionic surfactant |
Citations (9)
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US3315344A (en) * | 1962-06-06 | 1967-04-25 | Ejectoret Sa | Method for the production of cosmetic sticks, particularly lipsticks |
US3585265A (en) * | 1966-12-21 | 1971-06-15 | Avon Prod Inc | Method of making a pomade assembly |
US4069574A (en) * | 1976-10-15 | 1978-01-24 | American Cyanamid Company | Process for the manufacture of a cosmetic or pharmaceutical stick |
US4374796A (en) * | 1980-02-18 | 1983-02-22 | Shiseido Company, Ltd. | Method for loading cosmetic material into hollow space |
US4857305A (en) * | 1986-07-11 | 1989-08-15 | Stepan Company | N-phenylphthalisoimides as ultraviolet radiation absorbers |
US4967810A (en) * | 1988-07-09 | 1990-11-06 | Nanyo Factory Co., Ltd. | Multi-color loading machines for cosmetic paste materials |
US5059414A (en) * | 1988-07-01 | 1991-10-22 | Shiseido Co. Ltd. | Multi-phase high viscosity cosmetic products |
US5316712A (en) * | 1992-04-03 | 1994-05-31 | Jo Cosmetics Co., Ltd. | Process for producing solid cosmetics |
US5382433A (en) * | 1989-10-25 | 1995-01-17 | Avon Products, Inc. | Pigmented cosmetic compositions and method of making same |
-
1998
- 1998-01-08 WO PCT/US1998/000497 patent/WO1998030195A1/en not_active Application Discontinuation
- 1998-01-08 JP JP53118198A patent/JP2002513395A/en active Pending
- 1998-01-08 EP EP98904547A patent/EP0999821A1/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3315344A (en) * | 1962-06-06 | 1967-04-25 | Ejectoret Sa | Method for the production of cosmetic sticks, particularly lipsticks |
US3585265A (en) * | 1966-12-21 | 1971-06-15 | Avon Prod Inc | Method of making a pomade assembly |
US4069574A (en) * | 1976-10-15 | 1978-01-24 | American Cyanamid Company | Process for the manufacture of a cosmetic or pharmaceutical stick |
US4374796A (en) * | 1980-02-18 | 1983-02-22 | Shiseido Company, Ltd. | Method for loading cosmetic material into hollow space |
US4857305A (en) * | 1986-07-11 | 1989-08-15 | Stepan Company | N-phenylphthalisoimides as ultraviolet radiation absorbers |
US5059414A (en) * | 1988-07-01 | 1991-10-22 | Shiseido Co. Ltd. | Multi-phase high viscosity cosmetic products |
US4967810A (en) * | 1988-07-09 | 1990-11-06 | Nanyo Factory Co., Ltd. | Multi-color loading machines for cosmetic paste materials |
US5382433A (en) * | 1989-10-25 | 1995-01-17 | Avon Products, Inc. | Pigmented cosmetic compositions and method of making same |
US5316712A (en) * | 1992-04-03 | 1994-05-31 | Jo Cosmetics Co., Ltd. | Process for producing solid cosmetics |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2779960A1 (en) * | 1998-06-23 | 1999-12-24 | Talc De Luzenac | Solid products made by impregnating a hydrophobic mineral powder such as talc with a volatile liquid binder and pressing the mixture |
US6652844B1 (en) | 1998-06-23 | 2003-11-25 | Talc De Luzenac | Solid product capable of being handled based on hydrophobic mineral powder |
KR100615142B1 (en) * | 2000-01-19 | 2006-08-22 | 주식회사 엘지생활건강 | A solid cosmetic composition and a process thereof |
US6641823B2 (en) | 2000-10-16 | 2003-11-04 | L'oreal S.A. | Make-up composition for the skin |
FR2815250A1 (en) * | 2000-10-16 | 2002-04-19 | Oreal | Skin make-up composition, comprises in aqueous medium, film-forming polymer, non-ionic surfactant in form of block copolymer of polyethylene glycol and polypropylene glycol, and powdered colorant |
EP1199063A1 (en) * | 2000-10-16 | 2002-04-24 | L'oreal | Make-up composition for skin |
WO2002072045A2 (en) * | 2001-03-13 | 2002-09-19 | L'oreal | Solid composition containing at least 75 % by weight of solid particles and at least one non-volatile liquid oil |
FR2822065A1 (en) * | 2001-03-13 | 2002-09-20 | Oreal | SOLID COMPOSITION CONTAINING SOLID PARTICLES WITH AT LEAST ONE PART OF FIBERS |
FR2822058A1 (en) * | 2001-03-13 | 2002-09-20 | Oreal | SOLID COMPOSITION CONTAINING AT LEAST 75% BY WEIGHT OF SOLID PARTICLES AND AT LEAST ONE NON-VOLATILE LIQUID OIL |
WO2002072044A3 (en) * | 2001-03-13 | 2002-11-28 | Oreal | Solid composition containing solid particles comprising at least one part fibres |
WO2002072046A3 (en) * | 2001-03-13 | 2002-12-05 | Oreal | Solid composition containing colouring material and at least 75 % by weight of solid particles |
WO2002072045A3 (en) * | 2001-03-13 | 2002-12-12 | Oreal | Solid composition containing at least 75 % by weight of solid particles and at least one non-volatile liquid oil |
FR2822064A1 (en) * | 2001-03-13 | 2002-09-20 | Oreal | SOLID COMPOSITION CONTAINING AT LEAST 75% BY WEIGHT OF SOLID PARTICLES AND COLORING MATERIAL |
WO2002072046A2 (en) * | 2001-03-13 | 2002-09-19 | L'oreal | Solid composition containing colouring material and at least 75 % by weight of solid particles |
WO2002072044A2 (en) * | 2001-03-13 | 2002-09-19 | L'oreal | Solid composition containing solid particles comprising at least one part fibres |
US9387610B2 (en) * | 2010-02-10 | 2016-07-12 | Lg Hausys, Ltd. | Hard coating forming method |
US20120301629A1 (en) * | 2010-02-10 | 2012-11-29 | Yun Bong Kim | Hard coating forming method |
WO2012065821A1 (en) * | 2010-11-15 | 2012-05-24 | L'oreal | Solid cosmetic composition in compact powder form |
FR2967350A1 (en) * | 2010-11-15 | 2012-05-18 | Oreal | SOLID COSMETIC COMPOSITION IN THE FORM OF COMPACT POWDER |
FR2967351A1 (en) * | 2010-11-15 | 2012-05-18 | Oreal | SOLID COSMETIC COMPOSITION IN THE FORM OF COMPACT POWDER |
US10660826B2 (en) | 2010-11-15 | 2020-05-26 | L'oréal | Solid cosmetic composition in compact powder form |
KR102030194B1 (en) * | 2010-11-15 | 2019-10-08 | 로레알 | Solid cosmetic composition in compact powder form |
WO2012065822A1 (en) * | 2010-11-15 | 2012-05-24 | L'oreal | Solid cosmetic composition in compact powder form |
US10034817B2 (en) | 2010-11-15 | 2018-07-31 | L'oreal | Solid cosmetic composition in compact powder form |
KR20130116889A (en) * | 2010-11-15 | 2013-10-24 | 로레알 | Solid cosmetic composition in compact powder form |
US20140030202A1 (en) * | 2010-11-15 | 2014-01-30 | L'oreal | Solid cosmetic composition in compact powder form |
US20180092812A1 (en) * | 2010-11-15 | 2018-04-05 | L'oréal | Solid cosmetic composition in compact powder form |
FR2982159A1 (en) * | 2011-11-03 | 2013-05-10 | Oreal | SOLID COSMETIC COMPOSITION IN THE FORM OF COMPACT POWDER |
US20140255329A1 (en) * | 2011-11-03 | 2014-09-11 | L'oreal | Solid cosmetic composition in compact powder form |
CN103906550A (en) * | 2011-11-03 | 2014-07-02 | 莱雅公司 | Solid cosmetic composition in compact powder form |
KR101948513B1 (en) * | 2011-11-03 | 2019-02-15 | 로레알 | Solid cosmetic composition in compact powder form |
WO2013064452A1 (en) * | 2011-11-03 | 2013-05-10 | L'oreal Sa | Solid cosmetic composition in compact powder form |
CN110327224A (en) * | 2011-11-03 | 2019-10-15 | 莱雅公司 | The Solic cosmetic composition of compacted powder form |
FR2982153A1 (en) * | 2011-11-03 | 2013-05-10 | Oreal | Non-therapeutic solid makeup and/or care cosmetic composition, useful to coat skin, preferably face, comprises pulverulent phase, emulsifying system, hydrophilic gelling agent, and hollow particles of expanded (co)polymeric acrylonitrile |
US11033474B2 (en) | 2011-11-03 | 2021-06-15 | L'oreal | Solid cosmetic composition in compact powder form |
FR2985181A1 (en) * | 2012-01-02 | 2013-07-05 | Oreal | Solid make up and/or care composition in compact powder form, useful to coat skin, preferably face, comprises pulverulent phase, hydrophilic gelling agent, organic lacquer, and emulsifying system including nonionic surfactant |
Also Published As
Publication number | Publication date |
---|---|
EP0999821A1 (en) | 2000-05-17 |
JP2002513395A (en) | 2002-05-08 |
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