US3611990A - Apparatus for plastic lining containers for aerosols - Google Patents

Apparatus for plastic lining containers for aerosols Download PDF

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Publication number
US3611990A
US3611990A US843617A US3611990DA US3611990A US 3611990 A US3611990 A US 3611990A US 843617 A US843617 A US 843617A US 3611990D A US3611990D A US 3611990DA US 3611990 A US3611990 A US 3611990A
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US
United States
Prior art keywords
tube
container
piston
casing
screw
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.)
Expired - Lifetime
Application number
US843617A
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English (en)
Inventor
Charles Paoletti
Gilles Terrasse
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.)
LOreal SA
Original Assignee
LOreal SA
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 LOreal SA filed Critical LOreal SA
Application granted granted Critical
Publication of US3611990A publication Critical patent/US3611990A/en
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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
    • B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
    • B05C19/005—Apparatus specially designed for applying particulate materials to the inside of hollow work

Definitions

  • An apparatus for applying coatings or linings of plastic material to the inside of hollow containers of any shape or nature is provided.
  • plastisols or organosols consisting of dispersions of very fine resinous particles in solvents or plasticizers, or in mixtures of such solvents or plasticizers, possibly in association with colored pigments.
  • Vinyl plastisols and organosols are particularly useful.
  • an adhesive layer consisting, for. example, of a product having an acrylic resin base to the inner wall of the container before applying the plastic coating itself.
  • the container to be coated is first brought to a suitable temperature, which may for example be from 150-160 C. for a plastisol having a polyvinyl chloride base.
  • the container is then filled with-the said liquid product, so as to entirely cover the inner wall of the container. This is done under a certain gaseous pressure which tends to apply the dispersion to the inner wall of the container.
  • the excess liquid which has not adhered to the wall is withdrawn by means of a suction tube of any suitable shape.
  • the temperature of the container and the gel adhering to its inner wall is then increased, for example,,to from l80-200 C. for a time between 5 and 20 minutes so as to cause the polymerization of the internal coating, which then takes the fonn of a continuous flexible film of constant thickness.
  • an antiadhesive layer and particularly a coating of the phenolic epoxy type containing a parting compound such, for example, as the one sold in the United States under the trademark ACRAWAX by the Glyco Chemical Co. and sold in France by the Organon Company, the coating will adhere or fail to adhere to the internal wall of the container or of the heating mold.
  • the process according to the invention may also be carried out by using powdered polyolefines, polyamides, epoxy resins, or polyvinyl chloride powders.
  • These powders are first modified by adding antistatic compounds, dyes, stabilizers, and possibly pigments.
  • the grade and granulometry of these powders are, in the case of a polyolefine, between 40 and 70 and between 100 and 300 microns respectively.
  • the homogeneous mixture prepared in this manner is injected into a container which has first been heated to a temperature of the order of 200250 C.
  • This injection may be made by using a screw or a piston.
  • the system When the container is full of powder to the height to which it is to be coated, the system is hermetically sealed and the powder therein placed under a pressure of about 2 kg./cm. for several seconds. The excess powder which does not adhere to the inner wall of the container is then removed, possibly after a certain lapse of time, by means of a vacuum pump or any other adequate apparatus.
  • the container and the mixture adhering to its inner wall are then heated to a temperature of the order of 230 C., for example, for several minutes, so as to fuse the coating until a continuous film is obtained,
  • This coating is flexible and of constant thickness and is more or less adherent to the wall of the container.
  • Suitable apparatus for injecting the powders comprises a piston actuated by an electromagnet, which piston operates in a cylinder which terminates in a smaller cylinder which may be brought into contact with a preheated container and into which the powder is to be injected.
  • the piston is preferably water cooled.
  • the apparatus also comprises funnel shaped centering means which terminates in a tube within which said screw is located, said screw being driven in rotation by a motor.
  • pplyvinyl chloride having a molecular weight between 80,000 and 140,000 44.5 percent by weight diethyl-Z-hexylphthalate 30 percent by weight didecyl adipate 44.5 percent by weight octyl epoxy stearate (manufactured by the Argus Co. in the United States and sold in France by the Sogefra Division of the S.C.E. Co.) 10 percent by weight tri-(Z-chIoro-ethyl) phosphate 7.8 percent by weight Stabilizer having a barium, cadmium and zinc base (sold under the trademark Mark K C B by the Sogefra Division of the S.C.E. Co.) 1.3 percent optical azuring product 0.3 percent fluidizer sold under the trademark Deshydrol by the German l-lenkel Co. 1.1 percent Such a product loses at most 0.5 percent by weight of water during the above coating process.
  • the density of the coating obtained falls between 1.15 and 1.20.
  • the liquid At the moment of its injection the liquid has a viscosity at a temperature of 20 C. which falls between 1,500 and 2,500 centipoises.
  • the container is preheated to a temperature between and C.
  • the plastisol is injected through a tube up to the desired level under a gaseous pressure between 7 and 8 kg./cm.
  • the plastisol is left in contact with the container for 20 to 30 seconds.
  • the excess plastisol is eliminated by means of a vacuum pump.
  • the container with its internal coating is then placed in an oven at a temperature between and C. for from 10 to 15 minutes.
  • the result is a coating having a thickness between 0.5 and l millimeter.
  • a powdered product having the following composition is 0.3 percent 4,4'-thio-bis-( 3-methyl-6-tertiobutyl phenol) (as a heat sta bilizer) 0.7 percent lt should be noted that, instead of the above nitrate, it is possible to use a synthetic wax such as the one sold under the trademark ARTlClRE in France by the Lamotte and Coiffard Co., as an antistatic agent.
  • the container itself is preheated to a temperature between 200-230 C.
  • the pulverulent mixture is then injected by means of a screw or piston, while providing means for air to escape from the container.
  • the powder is left in contact with the container for several seconds, for example 2-3 seconds. Then the excess mixture is eliminated by means of a vacuum pump or other suitable device.
  • the container, with its coating, is then placed in an oven at a temperature between 210-230 C. for -7 minutes.
  • the resulting lining has a thickness of 0.8- l .2 millimeters.
  • the loss of water during cooling should not exceed 0.5 percent; the apparent density of the powder used is 0.34; and the density of the film obtained is 0.92.
  • the granulometry of the product used is between 100 and 300 microns, with a grade between 40 and 70.
  • the melting point of the powder and the film obtained is 109 C.
  • the foregoing compositions may naturally be modified depending on the opacity, the flexibility, and the mechanical strength required.
  • EXAMPLE 4 0.1 percent 0.3 percent heat stabilizer of one of the two types specified 0.7 percent pigments 2.6 percent
  • the quantity of pigments depends upon the color desired and may require the percentages of the other constituents to be slightly modified.
  • the mold is electrically heated, for example, it suffices to increase the intensity of the heating current so as to bring the heating mold to the required temperature, for example C., for from l0l5 minutes in the case of a plastisol having a polyvinyl chloride base or 210230 C. for 5 to 7 minutes in the case of a polyolefine coating.
  • FIG. 1 shows a container 1 which is heated to the desired temperature.
  • a cylinder 2 the lower part of which is provided with vents 3, makes it possible when the piston 4 is raised, that is to say when the electromagnet 5 is not supplied by the AC source 6, and the piston 4 is held up by the spring 7, to force out the air in the container 1, as the powder is introduced through the tube 8 containing an Archimedes screw 9, which serves to advance the powder contained in the funnel 10.
  • a motor 1! drives a rod 12 fixed to the Archimedes screw 9, and the assembly comprising the funnel l0 and a tube 8 is centered by centering means 13 comprising screws 14.
  • the electromagnet 5 When the container is completely filled with powder and the air has been permitted to escape through the vents 3, the electromagnet 5 is actuated in such a way as to force the piston toward the bottom of the cylinder 2, thus closing the vents 3, the container 1 being also forced against sealing means 15 carried by cylinder 20 of smaller diameter, located at the bottom of the cylinder 2.
  • heating molds comprising several intercommunicating cells which are isolated one from the other, so as to produce at a single operation either several plastic containers or a multicellular container having plastic walls.
  • Apparatus for coating the inner wall of a container which apparatus comprises:
  • annular means at the end of said casing from which said tube projects for sealingly engaging the outside of a container into which the projecting end of said tube is inserted
  • vent means in the wall of said casing through which air can escape from a container when said annular means is in sealing engagement therewith and said piston is in its first position, said vent means being located to be blocked by means biasing said piston toward its first position and electrically operable means for moving said piston from its first to its second position.
  • Apparatus as claimed in claim 1 comprising centering means carried by said casing and carrying said tube so that its position may be adjusted transversely within said casing.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Moulding By Coating Moulds (AREA)
US843617A 1968-08-13 1969-07-22 Apparatus for plastic lining containers for aerosols Expired - Lifetime US3611990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR162937 1968-08-13

Publications (1)

Publication Number Publication Date
US3611990A true US3611990A (en) 1971-10-12

Family

ID=8653746

Family Applications (1)

Application Number Title Priority Date Filing Date
US843617A Expired - Lifetime US3611990A (en) 1968-08-13 1969-07-22 Apparatus for plastic lining containers for aerosols

Country Status (6)

Country Link
US (1) US3611990A (uk)
BE (1) BE737030A (uk)
CH (1) CH517005A (uk)
DE (1) DE1940090C3 (uk)
FR (1) FR1584784A (uk)
GB (2) GB1277178A (uk)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6131566A (en) * 1995-04-14 2000-10-17 Glaxo Wellcome Inc. Metered dose inhaler for albuterol
US6143277A (en) * 1995-04-14 2000-11-07 Glaxo Wellcome Inc. Metered dose inhaler for salmeterol
US6149892A (en) * 1995-04-14 2000-11-21 Glaxowellcome, Inc. Metered dose inhaler for beclomethasone dipropionate
US6253762B1 (en) 1995-04-14 2001-07-03 Glaxo Wellcome Inc. Metered dose inhaler for fluticasone propionate
US20030103906A1 (en) * 1997-10-14 2003-06-05 Smithkline Beecham Corporation Metered dose inhaler having internal surfaces coated with fluorocarbon polymer
US6596260B1 (en) * 1993-08-27 2003-07-22 Novartis Corporation Aerosol container and a method for storage and administration of a predetermined amount of a pharmaceutically active aerosol
US20040134824A1 (en) * 2001-03-12 2004-07-15 Sandra Chan Canisters for use in metered dose inhalers
US20090145427A1 (en) * 2007-12-07 2009-06-11 Groeger Joseph H Method for Applying a Polymer Coating to an Internal Surface of a Container
CN108740911A (zh) * 2018-05-16 2018-11-06 厦门恬恬美时科技有限公司 一种凝胶型食品的成型设备及其制作方法
WO2023235932A1 (en) * 2022-06-10 2023-12-14 Robert Bosch (Australia) Pty Ltd Apparatus and method for providing coated receptacles

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4082057A (en) * 1975-04-21 1978-04-04 Tenneco Chemicals, Inc. Apparatus for spraying interior surface of vessels
SE422282B (sv) * 1975-12-18 1982-03-01 Atlas Copco Ab Sprutpistol
CN108722819A (zh) * 2018-07-16 2018-11-02 湖南云顶智能科技有限公司 大面积快速颗粒播撒装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1862090A (en) * 1930-07-25 1932-06-07 Liquid Carbonic Corp Bottle filling machine
US2381454A (en) * 1943-03-25 1945-08-07 American Can Co Machine for filling products into containers
US3491170A (en) * 1964-09-14 1970-01-20 Owens Illinois Inc Production of molded containers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1862090A (en) * 1930-07-25 1932-06-07 Liquid Carbonic Corp Bottle filling machine
US2381454A (en) * 1943-03-25 1945-08-07 American Can Co Machine for filling products into containers
US3491170A (en) * 1964-09-14 1970-01-20 Owens Illinois Inc Production of molded containers

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6596260B1 (en) * 1993-08-27 2003-07-22 Novartis Corporation Aerosol container and a method for storage and administration of a predetermined amount of a pharmaceutically active aerosol
US8119105B2 (en) 1993-08-27 2012-02-21 Novartis Corporation Aerosol container and a method for storage and administration of a pre-determined amount of a pharmaceutically active aerosol
US20030194379A1 (en) * 1993-08-27 2003-10-16 Francois Brugger Aerosol container and a method for storage and administration of a pre-determined amount of a pharmaceutically active aerosol
US6511652B1 (en) 1995-04-14 2003-01-28 Smithkline Beecham Corp. Metered dose inhaler for beclomethasone dipropionate
US6143277A (en) * 1995-04-14 2000-11-07 Glaxo Wellcome Inc. Metered dose inhaler for salmeterol
US6131566A (en) * 1995-04-14 2000-10-17 Glaxo Wellcome Inc. Metered dose inhaler for albuterol
US6524555B1 (en) 1995-04-14 2003-02-25 Smithkline Beecham Corp. Metered dose inhaler for salmeterol
US6532955B1 (en) 1995-04-14 2003-03-18 Smithkline Beecham Corporation Metered dose inhaler for albuterol
US6546928B1 (en) 1995-04-14 2003-04-15 Smithkline Beecham Corporation Metered dose inhaler for fluticasone propionate
US6511653B1 (en) 1995-04-14 2003-01-28 Smithkline Beecham Corp. Metered dose inhaler for beclomethasone dipropionate
US6253762B1 (en) 1995-04-14 2001-07-03 Glaxo Wellcome Inc. Metered dose inhaler for fluticasone propionate
US6149892A (en) * 1995-04-14 2000-11-21 Glaxowellcome, Inc. Metered dose inhaler for beclomethasone dipropionate
US20040187865A1 (en) * 1995-04-14 2004-09-30 Smithkline Beecham Corp. Metered dose inhaler for fluticasone propionate
US20030103906A1 (en) * 1997-10-14 2003-06-05 Smithkline Beecham Corporation Metered dose inhaler having internal surfaces coated with fluorocarbon polymer
US20040134824A1 (en) * 2001-03-12 2004-07-15 Sandra Chan Canisters for use in metered dose inhalers
US20090188492A1 (en) * 2001-03-12 2009-07-30 Glaxo Group Limited Canisters for use in metered dose inhalers
US20090145427A1 (en) * 2007-12-07 2009-06-11 Groeger Joseph H Method for Applying a Polymer Coating to an Internal Surface of a Container
US8227027B2 (en) 2007-12-07 2012-07-24 Presspart Gmbh & Co. Kg Method for applying a polymer coating to an internal surface of a container
US8703306B2 (en) 2007-12-07 2014-04-22 Presspart Gmbh & Co. Kg Method for applying a polymer coating to an internal surface of a container
CN108740911A (zh) * 2018-05-16 2018-11-06 厦门恬恬美时科技有限公司 一种凝胶型食品的成型设备及其制作方法
WO2023235932A1 (en) * 2022-06-10 2023-12-14 Robert Bosch (Australia) Pty Ltd Apparatus and method for providing coated receptacles

Also Published As

Publication number Publication date
DE1940090B2 (de) 1977-12-15
CH517005A (fr) 1971-12-31
BE737030A (uk) 1970-02-04
DE1940090A1 (de) 1970-02-19
FR1584784A (uk) 1970-01-02
DE1940090C3 (de) 1978-08-24
GB1263344A (en) 1972-02-09
GB1277178A (en) 1972-06-07

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