US3870181A - Molecularly oriented bottle - Google Patents

Molecularly oriented bottle Download PDF

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Publication number
US3870181A
US3870181A US331475A US33147573A US3870181A US 3870181 A US3870181 A US 3870181A US 331475 A US331475 A US 331475A US 33147573 A US33147573 A US 33147573A US 3870181 A US3870181 A US 3870181A
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United States
Prior art keywords
bottle
segment
toroidal segment
toroidal
percent
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
US331475A
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English (en)
Inventor
Thomas F Sincock
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.)
Hoover Universal Inc
Original Assignee
Monsanto 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 Monsanto Co filed Critical Monsanto Co
Priority to US331475A priority Critical patent/US3870181A/en
Priority to NL7401753A priority patent/NL7401753A/xx
Priority to FR7404529A priority patent/FR2217219B1/fr
Priority to DE2406335A priority patent/DE2406335C2/de
Priority to ZA740882A priority patent/ZA74882B/xx
Priority to AU65449/74A priority patent/AU486643B2/en
Priority to BE140781A priority patent/BE810874A/fr
Priority to ES1974221982U priority patent/ES221982Y/es
Priority to IT20478/74A priority patent/IT1007367B/it
Priority to CA192,243A priority patent/CA1001097A/en
Priority to GB612074A priority patent/GB1459521A/en
Priority to JP49017511A priority patent/JPS5236473B2/ja
Application granted granted Critical
Publication of US3870181A publication Critical patent/US3870181A/en
Assigned to HOOVER UNIVERSAL, INC. reassignment HOOVER UNIVERSAL, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MONSANTO COMPANY, A CORP. OF MI
Assigned to HOOVER UNIVERSAL reassignment HOOVER UNIVERSAL ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MONSANTO COMPANY
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/0261—Bottom construction
    • B65D1/0276—Bottom construction having a continuous contact surface, e.g. Champagne-type bottom
    • 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
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/12—Stretching rods
    • 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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/02—Thermal after-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • 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
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1397—Single layer [continuous layer]

Definitions

  • ABSTRACT A bottle for carbonated soft drinks and beer having enhanced resistance to impact and burst pressure which is formed from a polymer wherein the major constituent is polymerized acrylonitrile monomer.
  • the bottle has a bottom portion comprising a substantially toroidal segment merging at one end into the lower end of the sidewall and at its other end into an inner base wall closing off the bottom of the bottle, the radius of curvature of said toroidal segment being between 10 to percent of the maximum diameter of the generally cylindrical body and the surface area of said segment being at least percent of that of a full torus.
  • the polymer of the substantially toroidal segment is molecularly oriented exhibiting an orientation release stress of at least psi in both the axial and circumferential directions.
  • thermoplastic material chosen must have gas and liquid barrier properties which are adequate to preserve the integrity of the contents over normal shelf life periods of the package. For example, carbon dioxide and water loss from the contents or oxygen gain through the wall of the container must be kept below certain maximum levels.
  • the container must be able to withstand the rather substantial internal pressures generated by the contents without disintegrating, such pressures ranging as high as 200 psig under severe storage temperature conditions.
  • Nitrile-based polymers have been recognized in the art as having the properties necessary to qualify for such pressurized packaging applications.
  • the radius in the chime area of the bottle or in the section between the base and sidewall is typically about /2 to 1 /2 or more times the major bottle diameter in order to achieve the intended purpose of utilizing the container design to keep the stress buildup below that which the polymer of the bottle can withstand, and such configurations serve quite well for their intended purpose.
  • molecular orientation of polymers, and specifically high nitrile polymers for the purpose of imveloping molecular orientation in the polymer in the chime area of the bottle where impact usually occurs, which is sufficient to provide the impact strength required during normal handling and use, have not been successful.
  • Another object of this invention is to provide such a bottle made of a polymer wherein the major constituent is polymerized acrylonitrile monomer.
  • a further object of this invention is to provide such a bottle formed from an acrylonitrile-based monomer having improved toughness obtained through molecular orientation techniques.
  • An additional object of this invention is to provide such a bottle having a lower body configuration designed to optimize the amount of orientation that can be developed in the acrylonitrile-based polymer during formation of the bottle.
  • Another object of this invention is to provide such a bottle having a lower body configuration which provides optimum molecular orientation in the body wall without sacrificing the stress retention capability characteristicof the container.
  • Yet a further object of this invention is to provide a lower body design in a bottle for a carbonated beverage formed from a nitrile-based polymer wherein strength (ability to withstand stress) is relatively balanced with toughness (ability to withstand impact shock).
  • a bottle for a beverage under pressure formed of a polymer wherein the major constituent is polymerized acrylonitrile monomer said bottle comprising a generally cylindrical body which includes a sidewall portion having a discharge opening at its upper end and means formed therein adjacent said opening for cooperating with a pressure confining closure, a bottom portion at the other end of the sidewall portion comprising a special, toroidal segment between the sidewall and an inner base wall closing off the bottom portion of the bottle, the radius of curvature of such toroidal segment being between 10 to 20 percent of the maximum diameter of the generally cylindrical body and the surface area of such toroidal segment being at least 30 percent of that of a full torus, the polymer of said segment being molecularly oriented, exhibiting an orientation release stress of at least 50 psi in both the axial and circumferential directions.
  • the inner base wall which closes off the lower end of the bottle preferably has a curved portion having a radius substantially equal to but reverse from the radius of curvature of the toroidal segment, such curved portion merging into the segment and having a height above the lowermost point of the segment of between to 30 percent of the greatest diameter of the body of the bottle.
  • FIG. 1 is a schematic elevational view of abottle embodying the present invention.
  • FIG. 2 is a sectional view of the lower portion of the bottle of FIG. 1.
  • thermoplastic material from which the bottle of the present invention is made must be a polymer wherein the major constituent (at least 55 weight percent) is polymerized acrylonitrile monomer in order to provide the container with the combination of chemical and physical properties which necessarily must be present in the thermoplastic in order that it be an effective material for packaging carbonated soft drinks and beer.
  • polymerized monomer is preferably present at a level of from 60 to 80 weight percent in the polymer.
  • acrylonitrile-based thermoplastics exhibit excellent tensile strength, e.g., between 8,000 to 11,000 psi in unoriented condition.
  • nitrile-based polymers The barrier effectiveness of nitrile-based polymers is dependent on the level of C-N groups therein and since the molecular weight of the repeating acrylonitrile unit in the polymer is lower by percent than that of the similar methacrylonitrile unit, less acrylonitrile by weight is required in a given polymer in comparison to that required for a related methacrylonitrile based polymer in order to obtain equivalent overall polymer barrier properties. Since these special high barrier polymers are expensive to synthesize, this represents a substantial advantage of the preferred acrylonitrile based materials over those based on methacrylonitrile. Methacrylonitrile, however, can be included in minor amounts in the polymer from which the bottles of the present invention are made e.g., in packaging applications which are very oxygen sensitive and require extremely low transmission of oxygen.
  • any monomer or monomers which are copolymerizable with the acrylonitrile component of the polymer may be employed in the practice of this invention.
  • the preferred range thereof is between 40 to 20 weight percent of the polymer.
  • Exemplary of such monomers are the aforementioned methacrylonitrile, ethacrylonitrile, propacrylonitrile, alphachloroacrylonitrile, alpha-bromoacrylonitrile, alphafluoroacrylonitrile, alpha-cyano-styrene, vinylidene cyanide, alpha-cyano acrylic acids, alpha-cyano acrylates such as alpha-cyano methyl acrylates, alpha-cyano ethyl acrylates, and the like, 2,3-dicyanobutene-w, 1,2- dicyanopropene-l, alpha-methylene glutaronitrile, and thelike.
  • ethylenically unsaturated aromatic compounds such as styrene, alpha-methyl styrene, ortho-, meta-, and parasubstituted alkyl styrenes, e.g., orthomethyl styrene, ortho-ethyl styrene, para-methyl styrene, para-ethyl styrene, ortho-, meta-, or para-propyl styrene, ortho-, meta-, or para-isopropyl styrene, orthometa, para-butyl styrene, ortho-, meta-, or parasecondary butyl styrene, ortho-, meta-, or para-tertiary butyl styrene, etc., alpha-halogenated styrene, e.g., alpha-chlorostyrene, alpha-bromostyrene, ringsubstituted al
  • Vinyl esters e.g., vinyl formate, vinyl acetate, vinyl propionate, vinyl butyrate, etc.; vinyl and vinylidene halides, e.g., vinyl chloride, vinyl bromides, vinylidene chloride, vinylidene chloride, vinyl fluorides, etc.; vinyl ethers, e.g., methyl vinyl ether, ethyl vinyl ether, alpha-olefins, e.g., ethylene, propylene, butene, pentene, hexene, heptene, oxtene, isobutene, and other isomers thereof.
  • a particularly preferred composition comprises 6575 weight percent polymerized acrylonitrile, 35-25 weight percent polymerized styrene.
  • additives or modifiers such as dyes, fillers, pigments, plasticizers, stabilizers, etc., may also be used in the polymers from which the bottles of the present invention are made.
  • Bottle 10 for packaging a beverage such as a cola soft drink or beer under carbonation pressure.
  • Bottle 10 comprises an axially symmetrical, generally cylindrical body 12 which includes sidewall 14 which may slope inwardly along its length toward the upper end as at 17 and which has a discharge opening 15 at such upper end.
  • Means such as threads 19 are formed in sidewall 14 adjacent opening 15 for cooperating with a pressure-confining closure (not shown) such as a twist-off metal cap.
  • a pressure-confining closure not shown
  • Other forms of neck finish obviously may be employed.
  • Sidewall 14, as illustrated particularly in FIG. 2 has a right cylindrical section adjacent its lower end.
  • Bottle 10 has a bottom portion generally indicated as 16 at the lower end of sidewall 14 which includes substantially toroidal segment 18 surrounding and integral with inwardly recessed inner base wall 20 and which preferably merges smoothly at its outermost end into the lower end of sidewall 14 and at its innermost end into inner base wall 20.
  • Inner base wall 20 closes off the bottom of bottle 10 and preferably comprises curved portion 22 having a radius substantially equal to but reverse from that of segment 18.
  • Wall 20 may have a centrally depressed portion 24 for accommodating the preferred process of forming bottle 10 to be described more completely hereafter.
  • the maximum height 16 of inner base wall portion 20 above lowermost point 36 of segment 18 in the illustrated embodiment is no greater than and preferably is about equal to radius R of segment 18 plus the thickness of the plastic forming portion 20.
  • the radius of curvature R of segment 18 in order to achieve the purposes of the present invention must be between 10 to 20 and preferably 13 to 18 percent of the maximum diameter of generally cylindrical body 10, which maximum diameter is represented by D in the illustrated embodiment.
  • Segment 18 should be present in the bottom portion at least to the extent of 30 and preferably 37 percent of that of a full torus, such imaginary remaining portion being illustrated in FIG. 2 by dotted line 26.
  • a surface between 28-30 in FIG. 2 is considered to represent the area of one-half of a torus, portion 28-32 would represent 25 percent thereof and portion 28-34 about 37 percent thereof.
  • the polymer forming segment 18 of container is molecularly oriented.
  • the level of orientation through the thickness of the material will vary when the bottle is formed as hereafter described, generally being more oriented on or adjacent the outer surface and decreasing in orientation level through the thickness to the inner surface.
  • the orientation as measured by the orientation release stress of the material, particularly in portion 28-32 of the toroidal segment, is at least 50 psi in the axial direction and at least 50 psi in the circumferential direction, such values representing the average through the thickness when the levels vary through such thickness as just described.
  • EXAMPLE A heat plastified, 70/30 weight percent polymerized acrylonitrilestyrene copolymer was shapedby conventional means such as blow or injection molding into a closed bottom end, open top end tubular preform having means such as threads 19 formed thereon, the body of which is illustrated in outline form as 38 in FIG. 1.
  • Preform 38 is brought to a temperature on the order of 280 F. by exposure to a suitable temperature conditioning medium, at which temperature substantial molecular orientation thereof occurs on stretching.
  • the temperature range within which such orientation can be developed for the acrylonitrile-based polymers of the present invention has been found to be 2503l0 F.
  • Preform 38 while at this temperature is then supported adjacent its open end between suitable cooperating sections of a conventional blow mold (not shown) whereupon stretch rod (FIG. 1) is introduced therein so as to force foot 42 against the closed bottom of the preform.
  • Rod 40 is then caused to move by suitable conventional means toward the opposite closed end of the mold to substantially stretch the vertical walls of preform 38 and especially those portions adjacent the closed end, in the vertical direction to thereby develop substantial axial orientation in the plastic.
  • suitable valving is actuated in a conventional manner so as to cause air under pressure to flow through passage 44 in stretch rod 40 into the axially stretched preform.
  • the air expands and consequently thins and forces the plastic radially of the axial position in the direction of arrow 54 toward the corner portion of the mold cavity which is to define toroidal segment 18 of the container.
  • Such movement develops radial or circumferential orientation, but the plastic at the same time is also forced further downwardly in the axial direction under the influence of the air pressure into the furthermost reaches of the mold defining segment 18 in order to develop additional axial orientation.
  • the plastic can be considered to move in the general angular direction of arrow 52 which direction has horizontal 48 and vertical 50 directional components.
  • the plastic of segment 18 is initially stretched substantially in the axial direction because of the initial motion of rod 40, whereupon the thus initially stretched plastic is thereupon moved outwardly and downwardly, such outward direction representing an additional stretch direction'and such downwardly oriented stretching of the previously stretched plastic representing yet another orientation direction.
  • the container thus formed is held in contact with cooled walls of the blow mold cavity in a conventional manner to set the thermoplastic whereupon the mold sections are separated and the container is discharged therefrom.
  • the entire container forming process usually takes on the order of five seconds. As illustrated in FIG.
  • inner wall portion 20 of the bottom of the container is relatively thick with portion 24 being the thickest, in comparison with that forming toroidal segment 18 due basically to the aforesaid stretching pattern.
  • the wall of toroidal segment 18, however, in addition to being well oriented is quite thin and thus well capable of resiliently absorbing impact forces but not so thin as to be deficient in the required barrier properties.
  • the thickness of segment 18 when formed in this manner generally ranges between 12 to 60 mils overall and between 12 to 40 mils in portion 2832 of segment 18, increasing toward 60 mils along portion 32-34.
  • Bottle 10 and others formed in the same manner were thereafter filled in a conventional manner with a chilled cola beverage at 3.9 volumes of CO and a rollon aluminum cap applied about threads 19 whereupon the temperature of the contents was allowed to increase to room temperature.
  • the filled bottles were then dropped through a vertical column from a height of 3 feet onto a flat steel plate backed by concrete.
  • the column was sized such that the angle of bottom impact i.e., the extent to which a plane through 36 of segment 18 is raised above the horizontal, did not exceed 2-3.
  • the percentage of bottles 10 passing such test without rupturing was found to be between 60 to percent of those tested.
  • the bottles when examined for orientation release stress levels according to the above procedure were always found to provide values of at least 50 psi in the axial and circumferential directions, sometimes reaching as high as 200 psi in the axial and 450 psi in the circumferential direction dependingon the process conditions and the overall bottle diameter in the base area. It may be possible to increase these upper levels by decreasing the temperature at which .the plastic is stretched and increasing the pressure of the air used to move the plastic down into the toroidal segment of the mold.
  • Distance 16 in FIG. 2 which represents the maximum inward extent of the recessed area of the bottom of the container adjacent toroidal segment 18 is important in the present invention. If such depth is excessive, the wall thickness of the material, especially that of portion 28-32 of segment 18, which is the furthest from the axis of the container becomes too thin, thus rendering the container borderline or unsatisfactory in terms of barrier properties or impact resistance. Also, as the height of portion 20 above lowermost point 36 is increased in the mold defining the container contour, the plastic will be stretched more in taking the shape of such surface and consequently the level of molecular orientation will increase.
  • Height 16 should be between 5 to 30 percent of the maximum diameter D of the bottle, and is preferably maintained approximately equal to R (plus the wall thickness of the mateoccurring subsequently after the container is pressurized. Described alternatively, the surface area of segment 18 from a point midway between 28-32 to 34 (FIG. 2) plus inner wall portion 20 should be on the order of 20-30 percent greater than that of the cross sectional area of an imaginary planar circle through lowermost point 36 in FIG. 2.
  • the tensile strength of the acrylonitrile-based material is increased when molecularly oriented in the manner previously described to a value on the order of 10,000 psi to 20,000 psi.
  • radius R in FIG. 2 is relatively small in comparison with r in FIG. 1 for the prior art configuration, the increase in tensile strength of the material obtained by molecular orientation more than compensates for the sharper contour of segment 18, which contour allows development of the aforementioned orientation. In this manner, strength in the high stressed corner area of the bottle to withstand stress generated by the pressure of the contents is balanced with toughness towithstand impact during processing and use of the container by the consumer.
  • a. a generally cylindrical body which includes a sidewall portion having a discharge opening at its upper end and means formed therein adjacent said opening for cooperating with a pressure-confining closure;
  • a bottom portion at the other end of the sidewall portion comprising a substantially toroidal segment between the sidewall and an inner base wall surrounded by and integral with said toroidal segment and closing off the bottom portion of the bottle, the radius of curvature of said toroidal segment being between 10 to 20 percent of the maximum diameter of the generally cylindrical body, the surface area of said toroidal segment being at least 30 percent of that of a full torus, said toroidal segment having a varying overall wall thickness within a range of between 12 to 60 mils, said thickness gradually increasing within such range along said toroidal segment toward said inner base wall; and
  • the polymer in at least a portion of said segment being molecularly oriented exhibiting an orientation release stress of at least 50 psi in both the axial and circumferential directions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
US331475A 1973-02-12 1973-02-12 Molecularly oriented bottle Expired - Lifetime US3870181A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US331475A US3870181A (en) 1973-02-12 1973-02-12 Molecularly oriented bottle
NL7401753A NL7401753A (fr) 1973-02-12 1974-02-08
CA192,243A CA1001097A (en) 1973-02-12 1974-02-11 Molecularly oriented bottle
ZA740882A ZA74882B (en) 1973-02-12 1974-02-11 Improved molecularly oriented bottle
AU65449/74A AU486643B2 (en) 1973-02-12 1974-02-11 Improved molecularly oriented bottle
BE140781A BE810874A (fr) 1973-02-12 1974-02-11 Recipient ameliore
FR7404529A FR2217219B1 (fr) 1973-02-12 1974-02-11
IT20478/74A IT1007367B (it) 1973-02-12 1974-02-11 Bottiglia ad orientamento moleco lare particolarmente per bevande sotto pressione
DE2406335A DE2406335C2 (de) 1973-02-12 1974-02-11 Kunststoff-Flasche für unter Druck stehende Getränke
GB612074A GB1459521A (en) 1973-02-12 1974-02-11 Bottle
ES1974221982U ES221982Y (es) 1973-02-12 1974-02-11 Una botella de plastico orientado biaxialmente.
JP49017511A JPS5236473B2 (fr) 1973-02-12 1974-02-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US331475A US3870181A (en) 1973-02-12 1973-02-12 Molecularly oriented bottle

Publications (1)

Publication Number Publication Date
US3870181A true US3870181A (en) 1975-03-11

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Application Number Title Priority Date Filing Date
US331475A Expired - Lifetime US3870181A (en) 1973-02-12 1973-02-12 Molecularly oriented bottle

Country Status (11)

Country Link
US (1) US3870181A (fr)
JP (1) JPS5236473B2 (fr)
BE (1) BE810874A (fr)
CA (1) CA1001097A (fr)
DE (1) DE2406335C2 (fr)
ES (1) ES221982Y (fr)
FR (1) FR2217219B1 (fr)
GB (1) GB1459521A (fr)
IT (1) IT1007367B (fr)
NL (1) NL7401753A (fr)
ZA (1) ZA74882B (fr)

Cited By (27)

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US3948404A (en) * 1974-11-14 1976-04-06 E. I. Du Pont De Nemours And Company Composite package for containing pressurized fluids
US4033804A (en) * 1975-07-07 1977-07-05 Monsanto Company Reclaiming waste plastics
DE2801234A1 (de) * 1977-02-04 1978-08-10 Solvay Hohlkoerper aus orientiertem kunststoff
US4108324A (en) * 1977-05-23 1978-08-22 The Continental Group, Inc. Ribbed bottom structure for plastic container
US4231483A (en) * 1977-11-10 1980-11-04 Solvay & Cie. Hollow article made of an oriented thermoplastic
US4247012A (en) * 1979-08-13 1981-01-27 Sewell Plastics, Inc. Bottom structure for plastic container for pressurized fluids
US4249666A (en) * 1977-03-02 1981-02-10 Solvay & Cie Hollow body of thermoplastic material
US4276987A (en) * 1979-02-07 1981-07-07 Solvay & Cie Hollow body made of an oriented thermoplastic
US4381061A (en) * 1981-05-26 1983-04-26 Ball Corporation Non-paneling container
US4525401A (en) * 1979-11-30 1985-06-25 The Continental Group, Inc. Plastic container with internal rib reinforced bottom
US4780257A (en) * 1987-05-29 1988-10-25 Devtech, Inc. One piece self-standing blow molded plastic bottles
US4889752A (en) * 1987-05-29 1989-12-26 Devtech, Inc. One piece self-standing blow molded plastic containers
US4927679A (en) * 1987-05-29 1990-05-22 Devtech, Inc. Preform for a monobase container
US4956033A (en) * 1989-05-22 1990-09-11 Norman R. Martin Process for reclaiming plastic containers
US4978015A (en) * 1990-01-10 1990-12-18 North American Container, Inc. Plastic container for pressurized fluids
US5072841A (en) * 1986-02-14 1991-12-17 Norderney Investments Limited Plastic containers
US5648133A (en) * 1990-10-05 1997-07-15 Nissei Asb Machine Co., Ltd. Biaxially oriented crystalline resin container and process of making the same
USRE36639E (en) * 1986-02-14 2000-04-04 North American Container, Inc. Plastic container
US6176382B1 (en) 1998-10-14 2001-01-23 American National Can Company Plastic container having base with annular wall and method of making the same
US6439413B1 (en) * 2000-02-29 2002-08-27 Graham Packaging Company, L.P. Hot-fillable and retortable flat paneled jar
US20040159626A1 (en) * 2003-02-14 2004-08-19 Greg Trude Base structure for a container
US7287658B1 (en) * 2004-01-08 2007-10-30 Berry Plastics Corporation Container having a base with a convex dome and method of use
US20130062306A1 (en) * 2010-04-06 2013-03-14 Petainer Lidkoeping Ab Self-Standing Container
US20170267391A1 (en) * 2014-08-21 2017-09-21 Amcor Limited Two-stage container base
US20170267394A1 (en) * 2014-08-21 2017-09-21 Amcor Limited Container with folded sidewall
US11203145B2 (en) * 2015-10-29 2021-12-21 The Coca-Cola Company Photoelastic characterization of residual stresses and stress distributions in injection molded preforms and stretch blow-molded bottle
US20220324603A1 (en) * 2021-04-13 2022-10-13 Sidel Participations Flat-bottomed plastics container

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5579236A (en) * 1978-12-06 1980-06-14 Yoshino Kogyosho Co Ltd Bottle made of twooaxissextended synthetic resin and method of manufacturing said bottle
JPS5579239A (en) * 1978-12-13 1980-06-14 Yoshino Kogyosho Co Ltd Innprocess material for making bottole of twooaxissextended synthetic resin and method of using said material
AU522123B2 (en) * 1979-01-10 1982-05-20 Yoshino Kogyosho Co., Ltd. Bottle blown with conical base
US4755404A (en) * 1986-05-30 1988-07-05 Continental Pet Technologies, Inc. Refillable polyester beverage bottle and preform for forming same
JPH0136731Y2 (fr) * 1986-12-01 1989-11-08
US5217737A (en) * 1991-05-20 1993-06-08 Abbott Laboratories Plastic containers capable of surviving sterilization
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USD379152S (en) 1996-02-06 1997-05-13 The Coca-Cola Company Sidewall for a bottle
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US6176382B1 (en) 1998-10-14 2001-01-23 American National Can Company Plastic container having base with annular wall and method of making the same
US6439413B1 (en) * 2000-02-29 2002-08-27 Graham Packaging Company, L.P. Hot-fillable and retortable flat paneled jar
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US6896147B2 (en) * 2003-02-14 2005-05-24 Graham Packaging Company, L.P. Base structure for a container
WO2004073947A3 (fr) * 2003-02-14 2005-09-15 Graham Packaging Co Structure de base pour recipient
US7287658B1 (en) * 2004-01-08 2007-10-30 Berry Plastics Corporation Container having a base with a convex dome and method of use
US20130062306A1 (en) * 2010-04-06 2013-03-14 Petainer Lidkoeping Ab Self-Standing Container
US20170267391A1 (en) * 2014-08-21 2017-09-21 Amcor Limited Two-stage container base
US20170267394A1 (en) * 2014-08-21 2017-09-21 Amcor Limited Container with folded sidewall
US9994351B2 (en) * 2014-08-21 2018-06-12 Amcor Group Gmbh Container with folded sidewall
US10059482B2 (en) * 2014-08-21 2018-08-28 Amcor Limited Two-stage container base
US10518924B2 (en) 2014-08-21 2019-12-31 Amcor Rigid Plastics Usa, Llc Container base including hemispherical actuating diaphragm
US10968006B2 (en) 2014-08-21 2021-04-06 Amcor Rigid Packaging Usa, Llc Container base including hemispherical actuating diaphragm
US11203145B2 (en) * 2015-10-29 2021-12-21 The Coca-Cola Company Photoelastic characterization of residual stresses and stress distributions in injection molded preforms and stretch blow-molded bottle
US20220324603A1 (en) * 2021-04-13 2022-10-13 Sidel Participations Flat-bottomed plastics container

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NL7401753A (fr) 1974-08-14
AU6544974A (en) 1975-08-14
DE2406335C2 (de) 1986-07-24
IT1007367B (it) 1976-10-30
CA1001097A (en) 1976-12-07
DE2406335A1 (de) 1974-08-15
ZA74882B (en) 1974-12-24
FR2217219A1 (fr) 1974-09-06
BE810874A (fr) 1974-08-12
ES221982Y (es) 1977-03-01
FR2217219B1 (fr) 1978-09-08
ES221982U (es) 1976-11-01
JPS5025389A (fr) 1975-03-18
GB1459521A (en) 1976-12-22
JPS5236473B2 (fr) 1977-09-16

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