WO1998049069A1 - A method and a device for siliconising rubber stoppers - Google Patents
A method and a device for siliconising rubber stoppers Download PDFInfo
- Publication number
- WO1998049069A1 WO1998049069A1 PCT/SE1998/000738 SE9800738W WO9849069A1 WO 1998049069 A1 WO1998049069 A1 WO 1998049069A1 SE 9800738 W SE9800738 W SE 9800738W WO 9849069 A1 WO9849069 A1 WO 9849069A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stoppers
- emulsion
- pump
- container
- water
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
Definitions
- the present invention relates to a method of treating rubber stoppers intended to seal packages containing sterile products, for instance medicinal preparations.
- sealing packages the form of test tubes con- taming medicinal preparations it is important to prevent sterilised preparations that are contained in the packages from being contaminated during the very package- sealing process.
- rubber stoppers are used n order to stop such test tubes.
- the stoppers are initially subjected to washing and rinsing treatments- followed by sterilisation and drying. Prior to the sterilisation step the stoppers are also treated with silicon to ensure that they do not adhere to one another when stored after the sterilisation step, but also to make the stoppers sufficiently pliable for convenient application to the test tubes one by one and for efficient sealing of the tubes.
- stoppers are deposited on a vibrating table, known as a shaker.
- a mist of silicon is sprayed onto the stoppers which are subsequently collected in containers or bags in which they are sterilised n an autoclave.
- a thin silicone oil is mixed with water and an emulsifying agent is added to promote mixing.
- an emulsion is formed which is pumped into a container holding stoppers therein.
- the stoppers are siliconised, sterilised, and dried inside the container.
- the latter method is advantageous compared with the first-mentioned method inasmuch as it is more convenient to put into practice. From an environmental aspect this latter method is, however, disadvantageous that it requires the addition of a chemical substance for the emulsion to be produced.
- the object of the present invention is to provide a method of forming an emulsion from silicon and water without having to resort to the addition of any chemical substances, which emulsion may be used to efficiently siliconise rubber stoppers. This object is achieved by means of the inventive method according to which silicone oil and water alone are mixed while being stirred with sufficient vigour to produce an emulsion, and the resulting emulsion is directed to a container in which the stoppers are stored and the siliconising process is carried out.
- the invention likewise concerns a device for performing the method.
- the features characterising the device are defined in the appended claims 3 and 4.
- the invention will be described in more detail in the following with reference to the accompanying drawing which is a schematic representation of the inventive device .
- a dosage pump 4 is installed in a conduit 1 leading from a vessel 2 holding silicone oil 3. Downstream from the dosage pump 4 a shut-off valve 5 is mounted in the conduit 1.
- the conduit 1 branches into a water-supply conduit 6 in which is likewise mounted a shut-off valve 7. Water supplied via the conduit 6 is mixed with dosed amounts of silicone oil 3 that are discharged from the pump 4 and transported through the conduit 1.
- a dispersing pump 9 Downstream from the junction 8, where conduit 1 branches into conduit 6, a dispersing pump 9 is provided, and in a conduit 10 leading from pump 9 to a container 11 for storage of rubber stoppers to be siliconised are mounted a further shut-off valve 12 and a throttle valve 13.
- the method in accordance with the invention is carried out in the following manner.
- Water and silicone oil 3 in the desired proportions are pumped into the pump 9.
- the dispersion carried out therein is sufficiently vigorous to produce an emulsion independently of whether the silicone oil is a high-viscosity or a low-viscosity oil.
- the emulsion is then pumped into the container 11 wherein a mixture 14 of emulsion and rubber stoppers is formed. Siliconising of the rubber stoppers thereafter takes place, as a result- of which the stoppers receive a thin silicon coating.
- the throttle valve 13 is provided to allow variable throttling of the flow to the container 11. In this manner it becomes possible to regulate the emulsion mixing time inside the dispersing pump 9 in order to obtain optimum dispersing results.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98920777A EP1037815B2 (en) | 1997-04-29 | 1998-04-23 | A method and a device for siliconising rubber stoppers |
DE69809083T DE69809083T3 (en) | 1997-04-29 | 1998-04-23 | METHOD AND DEVICE FOR SILICONIZING RUBBER PLUG |
JP54688398A JP4190037B2 (en) | 1997-04-29 | 1998-04-23 | Rubber plug silicon processing method and apparatus |
DK98920777T DK1037815T4 (en) | 1997-04-29 | 1998-04-23 | A method and apparatus for silicone rubber stoppers |
AU73541/98A AU7354198A (en) | 1997-04-29 | 1998-04-23 | A method and a device for siliconising rubber stoppers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9701602A SE512231C2 (en) | 1997-04-29 | 1997-04-29 | Method and apparatus for silicone rubber stoppers |
SE9701602-6 | 1997-04-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998049069A1 true WO1998049069A1 (en) | 1998-11-05 |
Family
ID=20406759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1998/000738 WO1998049069A1 (en) | 1997-04-29 | 1998-04-23 | A method and a device for siliconising rubber stoppers |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1037815B2 (en) |
JP (1) | JP4190037B2 (en) |
AU (1) | AU7354198A (en) |
DE (1) | DE69809083T3 (en) |
SE (1) | SE512231C2 (en) |
WO (1) | WO1998049069A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114133608A (en) * | 2021-11-26 | 2022-03-04 | 湖北华强科技股份有限公司 | Silicification method for improving silicification uniformity of butyl rubber plug |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0364375A1 (en) * | 1988-10-11 | 1990-04-18 | Rhone-Poulenc Chimie | Aqueous silicone dispersion containing an alkenyl silane crosslinker and curing into an elastomer by removal of water |
EP0403400A1 (en) * | 1989-05-31 | 1990-12-19 | Rhone-Poulenc Chimie | Functionalized silicon oil-based aqueous dispersion cross-linking to an elastomer by elimination of water |
WO1997011894A1 (en) * | 1995-09-28 | 1997-04-03 | Jess Paul Fuller | Coated cork stopper |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5926129A (en) * | 1982-08-05 | 1984-02-10 | Konishiroku Photo Ind Co Ltd | Apparatus for preparing dispersion liquid droplets |
DE3931368A1 (en) * | 1989-09-20 | 1991-03-28 | Smeja Gmbh & Co Kg | CLEANING AND STERILIZING MACHINE FOR SMALL OBJECTS, LIKE LOCKING ELEMENTS OF PHARMACEUTICAL VESSELS |
-
1997
- 1997-04-29 SE SE9701602A patent/SE512231C2/en unknown
-
1998
- 1998-04-23 WO PCT/SE1998/000738 patent/WO1998049069A1/en active IP Right Grant
- 1998-04-23 JP JP54688398A patent/JP4190037B2/en not_active Expired - Lifetime
- 1998-04-23 DE DE69809083T patent/DE69809083T3/en not_active Expired - Lifetime
- 1998-04-23 AU AU73541/98A patent/AU7354198A/en not_active Abandoned
- 1998-04-23 EP EP98920777A patent/EP1037815B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0364375A1 (en) * | 1988-10-11 | 1990-04-18 | Rhone-Poulenc Chimie | Aqueous silicone dispersion containing an alkenyl silane crosslinker and curing into an elastomer by removal of water |
EP0403400A1 (en) * | 1989-05-31 | 1990-12-19 | Rhone-Poulenc Chimie | Functionalized silicon oil-based aqueous dispersion cross-linking to an elastomer by elimination of water |
WO1997011894A1 (en) * | 1995-09-28 | 1997-04-03 | Jess Paul Fuller | Coated cork stopper |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114133608A (en) * | 2021-11-26 | 2022-03-04 | 湖北华强科技股份有限公司 | Silicification method for improving silicification uniformity of butyl rubber plug |
CN114133608B (en) * | 2021-11-26 | 2023-02-03 | 湖北华强科技股份有限公司 | Silicification method for improving silicification uniformity of butyl rubber plug |
Also Published As
Publication number | Publication date |
---|---|
JP2001522339A (en) | 2001-11-13 |
AU7354198A (en) | 1998-11-24 |
EP1037815B2 (en) | 2005-06-29 |
SE9701602L (en) | 1998-10-30 |
DE69809083T3 (en) | 2006-03-16 |
DE69809083T2 (en) | 2003-07-24 |
EP1037815B1 (en) | 2002-10-30 |
SE512231C2 (en) | 2000-02-14 |
JP4190037B2 (en) | 2008-12-03 |
SE9701602D0 (en) | 1997-04-29 |
DE69809083D1 (en) | 2002-12-05 |
EP1037815A1 (en) | 2000-09-27 |
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