US3804663A - Method of internally coating rigid or semi-rigid plastic containers - Google Patents

Method of internally coating rigid or semi-rigid plastic containers Download PDF

Info

Publication number
US3804663A
US3804663A US00147120A US14712071A US3804663A US 3804663 A US3804663 A US 3804663A US 00147120 A US00147120 A US 00147120A US 14712071 A US14712071 A US 14712071A US 3804663 A US3804663 A US 3804663A
Authority
US
United States
Prior art keywords
coating
article
container
heating
parison
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
US00147120A
Other languages
English (en)
Inventor
D Clark
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to US00147120A priority Critical patent/US3804663A/en
Priority to CA140,992,A priority patent/CA950281A/en
Priority to AU41981/72A priority patent/AU465035B2/en
Priority to NL7206817A priority patent/NL7206817A/xx
Priority to DE19722225040 priority patent/DE2225040A1/de
Priority to IT50434/72A priority patent/IT958018B/it
Priority to GB2477072A priority patent/GB1389572A/en
Priority to FR7218667A priority patent/FR2139027B1/fr
Priority to SE7206818A priority patent/SE374317B/xx
Priority to BR003328/72A priority patent/BR7203328D0/pt
Priority to BE783932A priority patent/BE783932A/xx
Application granted granted Critical
Publication of US3804663A publication Critical patent/US3804663A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
    • B05D7/227—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of containers, cans or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2201/00—Polymeric substrate or laminate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B05D3/0263—After-treatment with IR heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3008—Preforms or parisons made of several components at neck portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3012—Preforms or parisons made of several components at flange portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3016—Preforms or parisons made of several components at body portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/302—Preforms or parisons made of several components at bottom portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31511—Of epoxy ether

Definitions

  • ABSTRACT A method for spin coating the interior of a generally rigid or semi-rigid plastic hollow article, such as a container or parison, with a synthetic organic resinous material to provide a protective coating therein.
  • the method comprises placing a quantity of a dispersion of synthetic organic resinous material, preferably a latex or solution, in a hollow article, spinning the article at high speed thereby causing centrifugal force to distribute and hold a coating of the dispersion uniformly on the interior surfaces of the same and then heating the coating while continuing to spin the article.
  • the result of the spin coating method is an article with a substantially uniform interior protective film providing improved article characteristics such as gas and liquid barrier properties, color and appearance, taste and flavor protection and the like.
  • One of the primary problems associated with the prior art coating methods is their inability to form uniform coatings without coating sag substantially in excess of 0.1 mil in thickness on the walls of a container without the addition of thickeners which are detrimental to the properties of the resulting film.
  • Another problem is their inability, when used to coat a latex, to completely wet-out and maintain a wetted surface of a nonporous substrate such as a plastic without the addition of substantial amounts of wetting agents which are also detrimental to the properties of the resulting film.
  • the present invention provides a method for uniformly spin coating the interior walls of generally rigid or semi-rigid plastic hollow articles such as a container or parison, for forming the same, with a synthetic organic resinous material, hereinafter commonly referred to as plastic material, which will result in an article having an interior protective coating providing improved characteristics.
  • the method comprises placing, preferably spraying or brushing, a quantity of a dispersion of plastic material in a hollow article, spinning the same at a high speed thereby causing centrifugal force to distribute and/or hold a coating of the dispersion uniformly on the interior wall surfaces of the article and then heating the coating to dry or fuse the same while continuing to spin the article.
  • the dispersion of synthetic organic resinous material may be a latex, emulsion, suspension, solution or the like but is preferably a latex or suspension.
  • the article is spun at a high rate of speed of at least 100 r.p.m., preferably from about 1,000 to 5,000 r.p.m., with the resulting centrifugal force distributing and/or holding the dispersion uniformly on the walls of the article.
  • the coating may be dried or fused by inserting an infrared or other like heating element into the article, blowing hot air into.
  • dielectric heating, microwave heating or other known heating means or combinations thereof while continuing to spin the same with the coating being held to the container walls by the centrifugal force.
  • the drying time of the coating is dependent on thickness of coating, amount and type of heating and the like. Application of multiple layers of coating, including adhesive or tie coatings applied before the protective coatings, fall within the scope of the invention.
  • the plastic dispersion is preferably a latex or suspension of saran, polyvinyl chloride, polyamide, olefins, acrylonitrile, epoxy or other like plastic resins or copolymers or blends thereof which will form the desired protective coating in the parison or container.
  • the hollow articles may be thermoformed by extrusion, injec tion molding, vacuum forming, blow molding and the like from polymers such as polystyrene, polypropylene, polyethylene, acrylonitrile butadiene styrene, styrene acrylonitrile, vinyl chloride, arylonitrile or like high structural strength polymers or copolymers or blends thereof which will not, in most cases, meet the necessary requirements for the products contained therein.
  • the polymers in the article walls may be multiaxially molecular oriented or unoriented depending on desired end product. A more detailed description of various useful polymers will be discussed later.
  • the method described herein is directed towards, but not limited to, the fabrication of a pressurized or nonpressurized container for packaging food products, oil and greases, beverages, medicine and the like where the protective coating helps provide improved container characteristics such as a barrier to oxygen, carbon dioxide, nitrogen, water or water vapor and organic vapor or liquid transmission into or out of the container.
  • improved container characteristics such as color and appearance, taste and flavor protection, stress crack and chemical resistance and the like may also be achieved.
  • the method herein described provides many advantages over more conventional prior art coating methods such as a symmetrically uniform coating thickness without coating sag, improved adhesion of the coating to the container or parison wall substrate due to forced wetting, reduced need for wetting agents, thickeners or other additives in the coating formulation, a more continuous layer of coating with substantially fewer pinholes therein due to a high degree of coalescence of the wet coating during spinning of the container or parison and a reduced drying time of the coating as, for example, where the polymer in a latex or suspension is of higher density than the suspending agents, such as a saran latex, the polymer is forced to the container or parison wall leaving the suspending agent at the heated surface during spinning of the container where it can be more easily removed by drying.
  • the parisons coated by the method herein described may be used to form containers having an interior protective coating.
  • coated containers can be formed from coated parisons by conventional blow molding.
  • an additional advantage is obtained by combining the spin coating method with a blow molding operation to form an internally coated container.
  • the heat used to dry the coating can be also used to soften the inside parison walls prior to the actual blowing of the container.
  • the interior heat in the spin coated parison need only be retained while additional external heat is applied to soften the parison before the container blowing step. By using this sequence of steps, the time required to heat parisons for blow molding can be substantially reduced.
  • a still further object of the present invention is to provide a combined method for spin coating the interior of parisons with protective coatings and then blow molding said coated parisons into coated containers utilizing the heat for drying or fusing the coatings in the parisons to help soften the parisons for subsequent blowing of the containers.
  • FIG. 1 is an exaggerated cross-sectional view of a cup shaped container for food products and the like constructed according to the principles of the present invention
  • FIG. 2 is a side elevation view, with portions broken away, of a parison which may be used to make a container and which is constructed according to the principles of the present invention
  • FIG. 3 is a view like FIG. 1 only showing a modified bottle shaped container
  • FIG. 4 is a schematic representation of the sequence of steps followed in accordance with the principles of the present invention showing spin coating of a container similar to that shown in FIG. 1;
  • FIG. 5 is a schematic representation of the sequence of steps followed in accordance with the principles of the present invention showing spin coating of a parison similar to that shown in FIG. 2 and then blow molding of the same into an internally coated container utilizing the heat for drying or fusing the coating to help soften the parison prior to blowing the container.
  • FIG. 1 illustrates a plastic cup-shaped container 10 having a side wall 12 and a bottom wall 14.
  • Container 10 is formed from a high structural strength thermoplastic material 16.
  • a plastic coating 18 is bonded to interior of walls 12 and 14.
  • FIG. 2 illustrates a parison 20 used to blow mold a container, similar to that shown in FIG. 3, having a thermoplastic wall 22 to which a coating 24, similar to coating 18 shown in FIG. 1, is bonded.
  • FIG. 3 illustrates a bottle shaped container 30 having a side wall 32, a bottom wall 34 and a neck portion 36 which is formed from a thermoplastic material 38.
  • a coating 39 similar to coating 18 shown in FIG. 1, is bonded to the interior of walls 32 and 34 and the neck portion 36.
  • step 1 illustrates the selection of a container, similar to that shown in FIG. 1, which is then spun and sprayed on the interior walls with a synthetic organic resinous dispersion, as shown in step 2.
  • step 3 of FIG. 4 illustrates the drying or fusion of the distributed coating while being held to the container walls by the centrifugal force with an infrared heating element which is inserted into the container while continuing to spin the same.
  • Step 4 illustrates the resulting container with an internal protective coating adhered to the walls of the container.
  • Steps 1 and 2 of FIG. 5 illustrate the selection and spin coating of a parison, similar to that shown in FIG. 2, following the same procedure represented by FIG. 4.
  • step 3 the parison is held by a heated mandrel to retain the drying or fusion heat within the parison and is externally heated in an oven utilizing any known heating means.
  • Step 4 of FIG. 5 illustrates the subsequent blow molding of the internally coated parison and step 5 illustrates the resulting internally coated blown container which is similar to the container shown in FIG. 3.
  • Example 1 To illustrate the method herein described, a plastic cup-shaped container, like container 10 shown in FIG. 1, having a wall thickness of about 50 mils, a diameter of about 3% inches and a height of about 4 inches formed of a general purpose polystyrene material was selected.
  • a variable speed motor fitted with a spindle wihch holds the container was used to spin the container.
  • the container was placed in the spindle and 3 grams of a saran latex poured into the same.
  • the container was then spun for 10 seconds at about 5,000 rpm. with the excess latex allowed to flow out the mouth of the container.
  • a 600 watt infrared heating element was inserted into the container for 10 seconds to dry the latex.
  • the dried coating thickness was a uniform 0.4 mils on the side wall and 0.1 mils on the bottom wall.
  • the saran latex used in this example was formulated with about 57 weight percent solids and 2 weight percent wetting agent.
  • the saran component comprises about weight percent of a copolymer of vinylidene chloride with the balance being acrylonitrile and methyl methacrylate copolymers.
  • the wetting agent is of the type generally referred to as an alkylphenoxypoly(oxyethylene)ethanol having the general formula RC I-I O(CH CI-I O),,CH CH OH in which R may be C I-I or a higher homolog.
  • the coating on the container side wall demonstrates very good adhesion and could be removed with a 9% inch wide strip of No. 810 Scotch tape only after three attempts in the same area of the wall.
  • the dried film exhibited complete wet-out on the container walls.
  • a flat sheet of a similar general purpose polystyrene material was coated with the same saran latex using a wire wound rod and then dried for seconds with a 600 watt infrared heating element.
  • the dried film exhibited incomplete wetting out on the flat sheet.
  • a 0.4 mil thick portion of the coating was easily removed with tape from the sheet with only one attempt. The difference in adhesion and wet-out were attributed to the forced wetting of the walls of the containerwhen the spin coating method herein described was used.
  • Example 2 To demonstrate the uniformity and lack of coating sag achieved by the spin coating method, a cup-shaped container similar to that described in Example 1 was spin coated at 1,800 r.p.m. The same saran latex and spinning and drying times were used. The resulting dried coating on the interior side wall of the container was a uniform 0.4 mil thick. Asecond container was spin coated following the same procedure except that the spinning step was discontinued before the coating was dried with the infrared heating element. The resulting dried coating on the side wall of the container exhibited severe coating sag and nonuniformity.
  • Example 3 To demonstrate the improved barrier properties of a container coated with the method herein described, a cup-shaped container, like container 10 in FIG.
  • Example 1 having a wall thickness of about 40 mils, a diameter of about 3% inches and a height of about 3% inches formed of a high density polyethylene material was selected. The same procedures and equipment used in Example 1 are employed here. Three grams of a saran latex was placed in the container, the container was spun at about 5,000 rpm. for 10 seconds and then dried for seconds while continuing to spin the container.
  • the high density polyethylene forming the container walls was polymerized by Ziegler catalysts and had a density of about 0.959, a melt index of about 0.5 and a flexual modulus of about 170,000.
  • the saran latex used here was the same as that used in Example 1 except it was formulated with about 4 weight percent wetting agent.
  • the resulting dried coating was a uniform 0.3 mil thick on the side wall of the container.
  • the average oxygen transmission rate determined by mass spectrometer analysis of two samples taken from the side wall of the container was found to be 0.63 cubic centimeter per 100 square inches per day at atmospheric pressure and 23C.
  • the average oxygen transmission rate, tested in the same manner, of four 40 mil thick samples taken from the side wall of a similar uncoated container was found to be 2.78 cubic centimeters per 100 square inches per day at atmospheric pressure and 23C.
  • Example 4 To illustrate the method of spin coating and blow molding of a parison, like the parison with a tapered side wall shown in FIG. 5, into an internally coated container, like container 30 of FIG.
  • Example 3 an injection molded, closed end, multiaxially oriented, general purpose polystyrene parison was selected which had a wall thickness of about 40 mils, a base diameter of 1% inches and an upper diameter just below the neck of 1% inches and an overall height of 4% inches. The same procedures and equipment used in Example 1 are employed here. Two grams of a saran latex was poured into the parison,
  • the parison was spun for 2 seconds at 5,000 rpm. and then a 500 watt infrared heating element was inserted into the parison for 4 seconds to dry the latex while continuing to spin the parison.
  • a second coating of the latex was applied over the first coating using the same conditions and procedures as described above. The dried coating had an evenly distributed thickness of 0.4 mil at the bottom and 0.6 mil at the top of the parison with the average being 0.5 mil.
  • the saran latex used in this example was formulated with about weight percent solids and 2 weight percent wetting agent.
  • the saran component comprised about 92 weight percent of a copolymer of vinylidene chloride with the balance being an acrylonitrile copolymer.
  • the wetting agent was the same general type employed in Example 1.
  • the coated parison was then blow molded using conventional equipment. To heat soften the parison, it was placed on a mandrel, similar to that shown in FIG. 5, which had a surface, temperature of 220F. External heating was accomplished by placing the parison and mandrel for 14 seconds in an oven heated by radiant heating elements having a surface temperature of l,000F. The parison was then placed in a mold and blown into a container, like container 30 shown in FIG. 3, with an air pressure of psi. for a period of 5 seconds. The dwell time of the container in the mold was 3 seconds.
  • the blow molded container had an average side wall thickness of about 10 mils, a body diameter of 3 3/16 inches, a neck diameter of 1 /8 inches and height of 4% inches.
  • the coating on the side wall of the container was reduced in thickness proportionally with the reduction in thickness of the side wall substrate and had an average thickness of about 0.125 mils.
  • the blown container showed that it exhibited the characteristic increased toughness of a multiaxially molecular oriented container. Also, the coating had sufficient adhesion to the container wall substrate to flow therewith without any detachment when the container was blown.
  • the coating in the blown container was continuous and pinhole free as determined by placing a mineral spirits and red dye solution into coated and uncoated blown containers for a period of one-half hour. The uncoated general purpose polystyrene containers were stained red whereas the coated containers remained unchanged.
  • the average oxygen transmission rate detennined by mass spectrometer analysis of three samples taken from the side wall of the coated containers was found to be 0.93 cubic centimeter per hundred square inches per day at atmospheric pressure and 23C.
  • the average oxygen transmission rate, tested in the same manner, of three samples taken from the side walls of similar uncoated containers is found to be 23.0 cubic centimeters per hundred square inches per day at atmospheric pressure and 23C.
  • Particularly suited polymers are vinylidene chloride, vinyl chloride, acrylonitrile, vinylidene fluoride and/or combined mixtures thereof.
  • Particular advantageous and beneficial are compositions of vinylidene chloride polymers, wherein the polymers contain at least about weight percent vinylidene chloride, the remainder being one or more olefinically unsaturated monomers copolymerizable therewith.
  • Suitable vinylidene chloride polymers are prepared utilizing such comonomers as methyl, ethyl, isobutyl, butyl, octyl and 2-ethylhexyl acrylates and methacrylate; phenyl methacrylate, cyclohexyl methacrylate, pcyclohexylphenyl methacrylate, chloroethyl methacrylate, p-cyclohexylphenyl methacrylate, chloroethyl methacrylate, 2-nitro-2-methylpropyl methaerylate, and the corresponding esters of acrylic acid, methyl alphachloro-acrylate, octyl alphachloroacrylate, methyl isopropenyl ketone, acrylonitrile, methacrylonitrile, methyl vinyl ketone, vinyl chloride, vinyl acetate, vinyl propionate, vinyl chloroacetate, vinyl bromide, styrene,
  • compositions which may be used with benefit in coatings in accordance with the present invention are vinyl chloride polymers which contain a predominant amount of vinyl chloride therein. Fluorocarbon polymers, fluorohydrocarbon polymers and fluorohalohydrocarbon polymers may also be used with benefit.
  • a method for internally coating a generally rigid or semi-rigid plastic container or parison type hollow article comprising:
  • said dispersion comprises a latex the major resin component of which is a copolymer having copolymerized therein at least about weight percent vinylidene chloride and a remainder of one or more copolymerizable olefinically unsaturated monomers.
  • said dispersion comprises a suspension the major resin component of which is a copolymer having copolymerized therein at least 70 weight percent vinylidene chloride and a remainder of one or more copolymerizable oleflnically unsaturated monomers.
  • said dispersion comprises an emulsion the major resin component of which is epoxy resin.
  • said dispersion comprises a suspension the major resin component of which is epoxy resin.
  • said dispersion comprises a latex the major resin component of which is acrylonitrile polymer.
  • said dispersion comprises a suspension the major resin component of which is acrylonitrile polymer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
US00147120A 1971-05-26 1971-05-26 Method of internally coating rigid or semi-rigid plastic containers Expired - Lifetime US3804663A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US00147120A US3804663A (en) 1971-05-26 1971-05-26 Method of internally coating rigid or semi-rigid plastic containers
CA140,992,A CA950281A (en) 1971-05-26 1972-05-01 Method of internally coating rigid or semi-rigid plastic containers
AU41981/72A AU465035B2 (en) 1971-05-26 1972-05-05 Method of internally coating rigid or semirigid plastic containers
NL7206817A NL7206817A (OSRAM) 1971-05-26 1972-05-19
IT50434/72A IT958018B (it) 1971-05-26 1972-05-23 Procedimento per il rivestimento interno di contenitori di plasti ca rigidi o semi rigidi e prodot to ottenuto
DE19722225040 DE2225040A1 (de) 1971-05-26 1972-05-23 Verfahren zum Beschichten der Innenwände von steifen oder halbsteifen Kunststoffbehältern
GB2477072A GB1389572A (en) 1971-05-26 1972-05-25 Method of internally coating rigid or semirigid plastics hollow articles
FR7218667A FR2139027B1 (OSRAM) 1971-05-26 1972-05-25
SE7206818A SE374317B (OSRAM) 1971-05-26 1972-05-25
BR003328/72A BR7203328D0 (pt) 1971-05-26 1972-05-25 Processo para revestimento interno de um artigo plastico oco rigido ou semi-rigido
BE783932A BE783932A (fr) 1971-05-26 1972-05-25 Procede de revetement de la surface interne de recipients de matieres plastiques rigides ou semi-rigides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00147120A US3804663A (en) 1971-05-26 1971-05-26 Method of internally coating rigid or semi-rigid plastic containers

Publications (1)

Publication Number Publication Date
US3804663A true US3804663A (en) 1974-04-16

Family

ID=22520360

Family Applications (1)

Application Number Title Priority Date Filing Date
US00147120A Expired - Lifetime US3804663A (en) 1971-05-26 1971-05-26 Method of internally coating rigid or semi-rigid plastic containers

Country Status (11)

Country Link
US (1) US3804663A (OSRAM)
AU (1) AU465035B2 (OSRAM)
BE (1) BE783932A (OSRAM)
BR (1) BR7203328D0 (OSRAM)
CA (1) CA950281A (OSRAM)
DE (1) DE2225040A1 (OSRAM)
FR (1) FR2139027B1 (OSRAM)
GB (1) GB1389572A (OSRAM)
IT (1) IT958018B (OSRAM)
NL (1) NL7206817A (OSRAM)
SE (1) SE374317B (OSRAM)

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025664A (en) * 1974-01-02 1977-05-24 Eppco Container coating method
US4093350A (en) * 1976-05-19 1978-06-06 Xerox Corporation System for centrifugally casting a thin film plastic in a replica process for providing multi-faceted polygonal scanners
US4169906A (en) * 1975-09-15 1979-10-02 Rexnord Inc. Wear resistant coated pipe and method of making it
US4262627A (en) * 1977-06-24 1981-04-21 Rexnord, Inc. Apparatus for coating the inside of pipe
US4311250A (en) * 1980-05-12 1982-01-19 The Continental Group, Inc. Container having internal wall surfaces modified to reduce carbonation loss
US4370368A (en) * 1980-05-07 1983-01-25 Toyo Seikan Kaisha, Ltd. Plastic bottles and process for preparation thereof
US4393106A (en) * 1980-10-31 1983-07-12 Toyo Seikan Kaisha Ltd. Laminated plastic container and process for preparation thereof
US4427470A (en) 1981-09-01 1984-01-24 University Of Utah Vacuum molding technique for manufacturing a ventricular assist device
US4427122A (en) 1977-05-13 1984-01-24 Platmanufaktur A.B. Container for liquids, which are sensitive to light
US4473423A (en) 1982-05-03 1984-09-25 University Of Utah Artificial heart valve made by vacuum forming technique
US4486378A (en) * 1980-05-07 1984-12-04 Toyo Seikan Kaisha Ltd. Plastic bottles and process for preparation thereof
US4515836A (en) * 1982-07-16 1985-05-07 Nordson Corporation Process for coating substrates with aqueous polymer dispersions
US4515832A (en) * 1977-06-24 1985-05-07 Rexnord, Inc. Method for coating the inside of pipe
US4554347A (en) * 1984-07-20 1985-11-19 W. R. Grace & Co. Microwave curing of latex-based compositions
US4581247A (en) * 1984-01-05 1986-04-08 Insituform International N.V. Lining of pipelines and passageways
US4581259A (en) * 1983-08-24 1986-04-08 Rambaud Jean Michel Composition and method for coating objects of acrylic resin and coated objects thus obtained
US4650699A (en) * 1983-04-18 1987-03-17 Sermetel Thixotropic alumina coating compositions, parts and methods
US4675139A (en) * 1985-10-21 1987-06-23 Continental Can Company, Inc. Method of forming plastisol gaskets in container closures fabricated from synthetic plastic resins
US4687677A (en) * 1983-04-06 1987-08-18 V-J System Ab Method and a device for lining pipelines by means of a flexible hose containing a curable plastic
US4699809A (en) * 1981-11-05 1987-10-13 Toyo Seikan Kaisha, Ltd. Process for preparation of coated oriented plastic container
US4714580A (en) * 1982-05-28 1987-12-22 Toyo Seikan Kaisha, Ltd. Plastic vessel having oriented coating and process for preparation thereof
US4846359A (en) * 1987-12-18 1989-07-11 The Procter & Gamble Company Multi-layered plastic bottle having integrally formed handle and method of making
US4851337A (en) * 1986-01-08 1989-07-25 Hygeia Sciences, Inc. Extraction of test substances
US5500308A (en) * 1994-05-02 1996-03-19 Rayovac Corporation Electrochemical cell having an inner seal member
US5632406A (en) * 1995-10-11 1997-05-27 Robbins, Iii; Edward S. Side wall construction for collapsible containers
US5707691A (en) * 1996-08-27 1998-01-13 The Coca-Cola Company Coating hollow containers by in-situ polymerization of monomers in bi-axially orientated form
US5766489A (en) * 1993-09-13 1998-06-16 Pts Gesellschaft Fuer Physikalisch-Technische Studien Jena Mbh Process and arrangement for continously carrying out photoreactions in a liquid phase
US5849224A (en) * 1995-06-26 1998-12-15 The Elizabeth And Sandor Valyi Foundation, Inc. Process of blow molding a food and beverage container with a melt phase polyester layer
US5851471A (en) * 1996-05-16 1998-12-22 The Coca-Cola Company Method for injection molding a multi-layer preform for use in blow molding a plastic bottle
US5860556A (en) * 1996-04-10 1999-01-19 Robbins, Iii; Edward S. Collapsible storage container
US5906787A (en) * 1994-02-18 1999-05-25 The Coca-Cola Company Hollow containers having a very thin inert or impermeable inner surface layer by coating the inside surface of the preform
US5915419A (en) * 1997-11-26 1999-06-29 Insituform (Netherlands) B.V. Cured in place lateral seal for relining of pipelines and method of manufacture
US5965081A (en) * 1996-05-16 1999-10-12 The Coca-Cola Company Method of making side-gated preforms for use in blow molding plastic bottles
US5976450A (en) * 1990-09-13 1999-11-02 Mreijen; Hubertus Preform for polyester bottle
EP0968770A1 (fr) * 1998-07-03 2000-01-05 L'oreal Procédé et dispositif pour appliquer un revêtement tel qu'une peinture ou un vernis
US6029726A (en) * 1997-11-26 2000-02-29 Insituform (Netherlands) B.V. Apparatus for installing a flexible cured in place lateral seal in an existing main pipeline
US6068725A (en) * 1997-11-26 2000-05-30 Insituform (Netherlands) B.V. Method of installation of a flexible cured in place lateral seal in an existing main pipeline
US6331331B1 (en) 1999-04-29 2001-12-18 Colgate-Palmolive Company Decorated polyester tube package for aqueous compositions
US20020012741A1 (en) * 2000-07-28 2002-01-31 Jochen Heinz Process and apparatus for applying a thermally attached lubricating coating on an interior wall of a cylindrical container for medicinal purposes
US6393803B1 (en) 1998-11-06 2002-05-28 Graham Packaging Company, L.P. Process for coating blow-molded plastic containers
US20030007891A1 (en) * 1999-08-20 2003-01-09 Wilson Robert F. Apparatus and method of detecting fluid
US6545594B1 (en) 2000-05-25 2003-04-08 The Coca-Cola Company Audio closure
WO2005062825A3 (en) * 2003-12-22 2006-09-21 Nova Chem Inc Disposable containers coated with a latex coating
US20070080163A1 (en) * 2005-10-12 2007-04-12 Sar Holdings International Ltd. Flexible mould for food baking
US7871558B2 (en) 2002-06-20 2011-01-18 Alcan Global Pharmaceutical Packaging, Inc. Containers intended for moisture-sensitive products
US20110020576A1 (en) * 2009-07-24 2011-01-27 Fina Technology, Inc. Polystyrene Preform Design for Blow Molding of Articles
US8003179B2 (en) 2002-06-20 2011-08-23 Alcan Packaging Flexible France Films having a desiccant material incorporated therein and methods of use and manufacture
US8110260B2 (en) 2007-02-02 2012-02-07 Rick Merical Containers intended for moisture-sensitive products
US20140203019A1 (en) * 2010-10-19 2014-07-24 Superfos A/S Container comprising an inner lining, a method of applying such a lining to a container and use of a peel-able coating as an inner lining in a container
US9604252B2 (en) 2013-05-20 2017-03-28 Conopco, Inc. Process for coating containers
US12280396B2 (en) 2019-04-19 2025-04-22 Photex Inc. Narrowband can manufacturing

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951889B2 (ja) * 1979-08-31 1984-12-17 固 青木 射出延伸吹込成形法
AU6093480A (en) * 1979-10-04 1981-04-09 Schenectady Chemicals Inc. Microwave curing of resins
DE3314108A1 (de) * 1983-04-19 1984-10-25 C.F. Spiess & Sohn Kunststoffwerk GmbH & Co, 6719 Kleinkarlbach Verfahren und vorrichtung zum herstellen von hohlkoerpern mit zumindest bereichsweise zwei- oder mehrschichtiger wand
GB8925472D0 (en) * 1989-11-10 1989-12-28 Ici Plc Container
MX2021012817A (es) * 2019-04-19 2022-03-04 Photex Inc Sistema y metodo para curar el interior de la lata.

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2330124A (en) * 1940-10-12 1943-09-21 Gen Mills Inc Apparatus for waxing cartons
US2892733A (en) * 1955-09-16 1959-06-30 Plax Corp Method and apparatus for treating synthetic resin containers
US3219472A (en) * 1961-09-29 1965-11-23 Johns Manville Method of coating the interior surface of a porous pipe
US3222725A (en) * 1961-10-25 1965-12-14 Neirad Ind Inc Molding process and apparatus
US3449479A (en) * 1966-06-17 1969-06-10 Phillips Petroleum Co Method for coating the interior surface of a polyolefin article with an impermeable polymer
US3468994A (en) * 1966-06-27 1969-09-23 Phillips Petroleum Co Dimethylsulfoxide in solvent system for polyolefin coating composition
US3535137A (en) * 1967-01-13 1970-10-20 Ibm Method of fabricating etch resistant masks
US3563791A (en) * 1969-05-09 1971-02-16 Nathan Janco Method of coating the inside of a cylindrical member
US3696987A (en) * 1971-02-26 1972-10-10 Dart Ind Inc Coated cup and method of manufacture

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2330124A (en) * 1940-10-12 1943-09-21 Gen Mills Inc Apparatus for waxing cartons
US2892733A (en) * 1955-09-16 1959-06-30 Plax Corp Method and apparatus for treating synthetic resin containers
US3219472A (en) * 1961-09-29 1965-11-23 Johns Manville Method of coating the interior surface of a porous pipe
US3222725A (en) * 1961-10-25 1965-12-14 Neirad Ind Inc Molding process and apparatus
US3449479A (en) * 1966-06-17 1969-06-10 Phillips Petroleum Co Method for coating the interior surface of a polyolefin article with an impermeable polymer
US3468994A (en) * 1966-06-27 1969-09-23 Phillips Petroleum Co Dimethylsulfoxide in solvent system for polyolefin coating composition
US3535137A (en) * 1967-01-13 1970-10-20 Ibm Method of fabricating etch resistant masks
US3563791A (en) * 1969-05-09 1971-02-16 Nathan Janco Method of coating the inside of a cylindrical member
US3696987A (en) * 1971-02-26 1972-10-10 Dart Ind Inc Coated cup and method of manufacture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Handbook of Material Trade Names, Zimmerman and Lavine (1953), pages 503 and 504. *

Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025664A (en) * 1974-01-02 1977-05-24 Eppco Container coating method
US4169906A (en) * 1975-09-15 1979-10-02 Rexnord Inc. Wear resistant coated pipe and method of making it
US4093350A (en) * 1976-05-19 1978-06-06 Xerox Corporation System for centrifugally casting a thin film plastic in a replica process for providing multi-faceted polygonal scanners
US4427122A (en) 1977-05-13 1984-01-24 Platmanufaktur A.B. Container for liquids, which are sensitive to light
US4515832A (en) * 1977-06-24 1985-05-07 Rexnord, Inc. Method for coating the inside of pipe
US4262627A (en) * 1977-06-24 1981-04-21 Rexnord, Inc. Apparatus for coating the inside of pipe
US4370368A (en) * 1980-05-07 1983-01-25 Toyo Seikan Kaisha, Ltd. Plastic bottles and process for preparation thereof
US4486378A (en) * 1980-05-07 1984-12-04 Toyo Seikan Kaisha Ltd. Plastic bottles and process for preparation thereof
US4311250A (en) * 1980-05-12 1982-01-19 The Continental Group, Inc. Container having internal wall surfaces modified to reduce carbonation loss
US4393106A (en) * 1980-10-31 1983-07-12 Toyo Seikan Kaisha Ltd. Laminated plastic container and process for preparation thereof
US4427470A (en) 1981-09-01 1984-01-24 University Of Utah Vacuum molding technique for manufacturing a ventricular assist device
US4699809A (en) * 1981-11-05 1987-10-13 Toyo Seikan Kaisha, Ltd. Process for preparation of coated oriented plastic container
US4473423A (en) 1982-05-03 1984-09-25 University Of Utah Artificial heart valve made by vacuum forming technique
US4714580A (en) * 1982-05-28 1987-12-22 Toyo Seikan Kaisha, Ltd. Plastic vessel having oriented coating and process for preparation thereof
US4515836A (en) * 1982-07-16 1985-05-07 Nordson Corporation Process for coating substrates with aqueous polymer dispersions
EP0099727A3 (en) * 1982-07-16 1985-10-16 Nordson Corporation Method and apparatus for the polymer coating of substrates
US4687677A (en) * 1983-04-06 1987-08-18 V-J System Ab Method and a device for lining pipelines by means of a flexible hose containing a curable plastic
US4650699A (en) * 1983-04-18 1987-03-17 Sermetel Thixotropic alumina coating compositions, parts and methods
US4581259A (en) * 1983-08-24 1986-04-08 Rambaud Jean Michel Composition and method for coating objects of acrylic resin and coated objects thus obtained
US4581247A (en) * 1984-01-05 1986-04-08 Insituform International N.V. Lining of pipelines and passageways
US4554347A (en) * 1984-07-20 1985-11-19 W. R. Grace & Co. Microwave curing of latex-based compositions
US4675139A (en) * 1985-10-21 1987-06-23 Continental Can Company, Inc. Method of forming plastisol gaskets in container closures fabricated from synthetic plastic resins
US4851337A (en) * 1986-01-08 1989-07-25 Hygeia Sciences, Inc. Extraction of test substances
US4846359A (en) * 1987-12-18 1989-07-11 The Procter & Gamble Company Multi-layered plastic bottle having integrally formed handle and method of making
US5976450A (en) * 1990-09-13 1999-11-02 Mreijen; Hubertus Preform for polyester bottle
US5766489A (en) * 1993-09-13 1998-06-16 Pts Gesellschaft Fuer Physikalisch-Technische Studien Jena Mbh Process and arrangement for continously carrying out photoreactions in a liquid phase
US5906787A (en) * 1994-02-18 1999-05-25 The Coca-Cola Company Hollow containers having a very thin inert or impermeable inner surface layer by coating the inside surface of the preform
US6444155B1 (en) 1994-02-18 2002-09-03 The Coca-Cola Company Hollow containers having a very thin inert or impermeable inner surface layer by coating the inside surface of the preform
US5500308A (en) * 1994-05-02 1996-03-19 Rayovac Corporation Electrochemical cell having an inner seal member
US5849224A (en) * 1995-06-26 1998-12-15 The Elizabeth And Sandor Valyi Foundation, Inc. Process of blow molding a food and beverage container with a melt phase polyester layer
US6077578A (en) * 1995-06-26 2000-06-20 The Elizabeth And Sandor Valyi Foundation, Inc. Molded plastic food and beverage container and method
US5632406A (en) * 1995-10-11 1997-05-27 Robbins, Iii; Edward S. Side wall construction for collapsible containers
US5860556A (en) * 1996-04-10 1999-01-19 Robbins, Iii; Edward S. Collapsible storage container
US6051295A (en) * 1996-05-16 2000-04-18 The Coca-Cola Company Method for injection molding a multi-layer preform for use in blow molding a plastic bottle
US5965081A (en) * 1996-05-16 1999-10-12 The Coca-Cola Company Method of making side-gated preforms for use in blow molding plastic bottles
US5851471A (en) * 1996-05-16 1998-12-22 The Coca-Cola Company Method for injection molding a multi-layer preform for use in blow molding a plastic bottle
US5707691A (en) * 1996-08-27 1998-01-13 The Coca-Cola Company Coating hollow containers by in-situ polymerization of monomers in bi-axially orientated form
US6520719B1 (en) 1997-11-26 2003-02-18 Insituform (Netherlands) B.V. Apparatus for installing a flexible cured in place lateral seal in an existing main pipeline
US6068725A (en) * 1997-11-26 2000-05-30 Insituform (Netherlands) B.V. Method of installation of a flexible cured in place lateral seal in an existing main pipeline
US6029726A (en) * 1997-11-26 2000-02-29 Insituform (Netherlands) B.V. Apparatus for installing a flexible cured in place lateral seal in an existing main pipeline
US6044867A (en) * 1997-11-26 2000-04-04 Insituform (Netherlands) N.V. Method and apparatus for fabricating a flexible lining with flexible collar for lining lateral pipelines
US5915419A (en) * 1997-11-26 1999-06-29 Insituform (Netherlands) B.V. Cured in place lateral seal for relining of pipelines and method of manufacture
US6709698B1 (en) * 1998-07-03 2004-03-23 L'oreal Method and apparatus for applying a coating such as a paint or a varnish
EP0968770A1 (fr) * 1998-07-03 2000-01-05 L'oreal Procédé et dispositif pour appliquer un revêtement tel qu'une peinture ou un vernis
US6393803B1 (en) 1998-11-06 2002-05-28 Graham Packaging Company, L.P. Process for coating blow-molded plastic containers
US6331331B1 (en) 1999-04-29 2001-12-18 Colgate-Palmolive Company Decorated polyester tube package for aqueous compositions
US20030007891A1 (en) * 1999-08-20 2003-01-09 Wilson Robert F. Apparatus and method of detecting fluid
US6545594B1 (en) 2000-05-25 2003-04-08 The Coca-Cola Company Audio closure
EP1175918A3 (de) * 2000-07-28 2002-04-10 Schott Glas Verfahren und Vorrichtung zum Auftragen einer hitzefixierten Gleitmittelschicht
US6586039B2 (en) * 2000-07-28 2003-07-01 Schott Glas Process and apparatus for applying a thermally attached lubricating coating on an interior wall of a cylindrical container for medicinal purposes
US20020012741A1 (en) * 2000-07-28 2002-01-31 Jochen Heinz Process and apparatus for applying a thermally attached lubricating coating on an interior wall of a cylindrical container for medicinal purposes
US7871558B2 (en) 2002-06-20 2011-01-18 Alcan Global Pharmaceutical Packaging, Inc. Containers intended for moisture-sensitive products
US8003179B2 (en) 2002-06-20 2011-08-23 Alcan Packaging Flexible France Films having a desiccant material incorporated therein and methods of use and manufacture
WO2005062825A3 (en) * 2003-12-22 2006-09-21 Nova Chem Inc Disposable containers coated with a latex coating
RU2312873C1 (ru) * 2003-12-22 2007-12-20 Нова Кемикалз Инк. Одноразовый контейнер с латексным покрытием
US20070080163A1 (en) * 2005-10-12 2007-04-12 Sar Holdings International Ltd. Flexible mould for food baking
US8110260B2 (en) 2007-02-02 2012-02-07 Rick Merical Containers intended for moisture-sensitive products
US20110020576A1 (en) * 2009-07-24 2011-01-27 Fina Technology, Inc. Polystyrene Preform Design for Blow Molding of Articles
US20140203019A1 (en) * 2010-10-19 2014-07-24 Superfos A/S Container comprising an inner lining, a method of applying such a lining to a container and use of a peel-able coating as an inner lining in a container
US9604252B2 (en) 2013-05-20 2017-03-28 Conopco, Inc. Process for coating containers
US12280396B2 (en) 2019-04-19 2025-04-22 Photex Inc. Narrowband can manufacturing

Also Published As

Publication number Publication date
IT958018B (it) 1973-10-20
DE2225040A1 (de) 1972-12-07
SE374317B (OSRAM) 1975-03-03
AU465035B2 (en) 1975-09-18
FR2139027A1 (OSRAM) 1973-01-05
NL7206817A (OSRAM) 1972-11-28
BE783932A (fr) 1972-11-27
FR2139027B1 (OSRAM) 1976-01-16
BR7203328D0 (pt) 1973-05-10
CA950281A (en) 1974-07-02
AU4198172A (en) 1973-11-08
GB1389572A (en) 1975-04-03

Similar Documents

Publication Publication Date Title
US4370368A (en) Plastic bottles and process for preparation thereof
US4544698A (en) Polymer coating composition and its use in the manufacture of layered packaging
US4486378A (en) Plastic bottles and process for preparation thereof
US4515836A (en) Process for coating substrates with aqueous polymer dispersions
US4573429A (en) Process for coating substrates with aqueous polymer dispersions
EP0051443B1 (en) Laminated plastic container and process for preparation thereof
EP0079215B2 (en) Process for preparation of coated oriented plastic container
US3140195A (en) Process for providing a coated surface
EP0079731B1 (en) Process for preparation of coated plastic container
IE48069B1 (en) Process for manufacturing bioriented composite hollow polyester bodies
US3340091A (en) Laminate of a polyolefin substrate and a surface coating of a copolymer of an olefin monomer and a polar monomer
JPS58208046A (ja) 配向された被覆を有するプラスチツク容器及びその製法
GB1389572A (en) Method of internally coating rigid or semirigid plastics hollow articles
JPS59158232A (ja) 多層延伸ポリエステルボトルの製法
US4020126A (en) Polyethylene terephthalate/terpolymer blends; films, sheets, and articles made using such blends; and method of making trays using such sheets
US3449479A (en) Method for coating the interior surface of a polyolefin article with an impermeable polymer
JPS649191B2 (OSRAM)
US3222211A (en) Novel packaging films and processes therefor
US3468994A (en) Dimethylsulfoxide in solvent system for polyolefin coating composition
US3984516A (en) Reforming collapsible crosslinked thermoplastic articles
US3541196A (en) Method for forming silicone composition coated polyolefin articles
JPS6229300B2 (OSRAM)
JPS5944970B2 (ja) 曇りガラス調表面を有する中空容器の製造方法
RU1804431C (ru) Контейнер дл пищевых продуктов и способ его формовани
JPS5993646A (ja) ラベル付プラスチツク容器