US3777447A - Method for packaging viscous vinyl plastic solutions - Google Patents

Method for packaging viscous vinyl plastic solutions Download PDF

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Publication number
US3777447A
US3777447A US00267905A US3777447DA US3777447A US 3777447 A US3777447 A US 3777447A US 00267905 A US00267905 A US 00267905A US 3777447D A US3777447D A US 3777447DA US 3777447 A US3777447 A US 3777447A
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United States
Prior art keywords
package
beads
solvent
needle
viscous
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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
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US00267905A
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English (en)
Inventor
D Morrison
R Herbine
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Merck Sharp and Dohme LLC
Original Assignee
Schering Corp
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Publication date
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/30—Compositions for temporarily or permanently fixing teeth or palates, e.g. primers for dental adhesives
    • A61K6/35—Preparations for stabilising dentures in the mouth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/60—Preparations for dentistry comprising organic or organo-metallic additives
    • A61K6/65—Dyes
    • A61K6/66—Photochromic dyes

Definitions

  • ABSTRACT A simplified technique well suited for automated. high speed filling of packages with viscous vinyl plastic solutions, such as denture adhesives, which exhibit a (l) viscous taffy-like, sticky consistency and (2) a high degree of uniformity when utilized by the consumer.
  • the first step of the technique requires he introduction 'of beads of the vinyl polymer into the open end of the package while simultaneously completely wetting each bead with a suitable solvent; a later step requires the aging of the wetted beads within the sealed package until the beads are fully dissolved and form a uniform product.
  • the solvent is introduced into the open end of the package by a conduit.
  • the solvent is injected into the package by an elongated needle with radial apertures, such needle being axially inserted into the interior of the package and being axially removed when the wetting step has been completed.
  • the instant invention relates generally to methods for thoroughly wetting beads of a vinyl polymer with a suitable solvent so that the resultant viscous vinyl plastic solution can be aged within the confines of a consumer package.
  • the batch of blended material is pressurizedand- /or advanced from the mixer into a filling head.
  • the packages to be filled are passed beneath the filling head, and the product is introduced into each package in sequential fashion.
  • a semi-skilled laborer controls the operation of the head and attempts to regulate the amount of blended viscous material introduced into each package.
  • the laborer then manually severs the taffy-like material with'a knife or shears, and the filled package is subsequently sealed, as by a crimping operation.
  • Problems are frequently encountered with tailing of the viscous product; such tailingj makes the subsequent sealing operation much more difficult and the tail detracts from the aesthetic appeal of the consumer product, with lowered commercial acceptance.
  • such conventional filling technique is time-consuming, tedious, and far better suited for small, low-volume packaging runs than for continuous, high speed packaging lines.
  • the instant invention contemplates processes for accurately filling packages with beads of vinyl polymeric material and a suitable solvent to form a viscous, taffy-like product of high uniformity after aging within the sealed package.
  • the solvent is introduced into the package by a conduit or an elongated needle with radial apertures.
  • the package is sealed after being filled andthe problems associated with the mechanical blending of the ingredients and the manual severing of the blended mass, such as the tailing, are obviated.
  • the viscous vinyl plastic solution produced by the instant invention is a highly uniform product. Uniformity indicates that imperfections or fisheyes, or undissolved beads similar in size to granules of sand, are absent from the product when utilized by the consumer. Fish-eyes reduce the effectiveness of the various properties of the product containing same; for example, with reference to denture adhesives, the gripping power of the adhesive might be reduced.
  • the instant packaging method can readily be practiced with commercially available apparatus to economically perform highspeed, automated packaging of viscous vinyl plastic solutions under sanitary conditions while maintaining a high degree of uniformity in the consumer product.
  • FIG. 1 is a schematic representation of a system for practicing the unique method of the instant invention
  • FIG. 2 is a vertical cross-section, on an enlarged scale, of a preferred embodiment of selected segments of a hopper, auger, jig, and conduit employed within the system of FIG. 1;
  • FIG. 3 is a vertical cross-sectional view of an alternative embodiment wherein an elongated needle is substituted for the conduit of FIG. 2;
  • FIG. 4 is a horizontal cross-sectional view on an enlarged scale, of the jig and the package with the needle inserted therein, such view being taken along line 4-4 in FIG. 3 and in the direction indicated.
  • FIG. 1 depicts a representative system of commercially available components for practicing the unique method of the intant invention
  • FIG. 2 illustrates, in greater detail, the more significant components of the system.
  • the system includes a hopper indicated generally by reference numeral l0.
  • Hopper 10 comprises an upper funnel 12 whose narrow bottom end opens into the first cylindrical section 14.
  • Section 14 in turn, opens into the second larger cylindrical section 16, which terminates in a tapering section 18 that leads into a third, smaller cylindrical section 20.
  • An annular ring 22 is defined at the lower end of the hopper.
  • a jig 24 holds the package, such as a collapsible tube, to be filled.
  • a cam 26 and a follower 28 are provided for raising the jig at the initiation of the filling operation, and for lowering same when the operation has been completed.
  • a pump 30 pressurizes the liquid to be delivered over conduit 32 to the package retained within jig' 24.
  • the conduit terminates in a downwardly facing, axially extending nozzle that communicates with the package to be filled.
  • feed means indicated generally by reference numeral 34, are provided to assist the movement of solid materials through hopper l0.
  • An electrical controller 36 with manually adjustable knobs 38, 40 and appropriate leads 4], 43 and 45 regulates (l) the operation of motor 42 that drives feed means 34, as well as (2) the operation of motor 44 that drives pump 30 and (3) the operation of motor 46 that drives cam 26 to raise and lower jig 24.
  • knobs 38 and 40 By properly manipulating knobs 38 and 40, the timed operation of feed means 34 and pump 30 relative to one another is altered.
  • the flow of pressurized fluid through conduit 32 can be regulated by valve 48.
  • By-pass loop 50 may relieve pressure built-ups in the conduit.
  • Feed means 34 extends axially through sections l2, l4 and 16 and terminates near the upper end of section 16.
  • Feed means 34 comprises a vertically extending shaft 52 with a helical spiral 54 wound thereabout; an annular plate 56 is secured to the lower end of the fillers, Auger-type filler, such as those described above, are well known and may be purchased from the G. Diehl Mateer Company of Wayne, Pa., or may be seen in U.S. Pat. Nos. re 23,888 and re 24,079 granted to G. Diehl Mateer.
  • Conduit 32 passes through an aperture 58 in the wall of third cylindrical section 20, and terminates in a right-angled section that is coincident with the vertical axes of hopper l and jig 24.
  • the jig sections of which are broken away, has a cavity 60 shaped to receive therein the outline of the package to be filled.
  • cavity 60 receives a collapsible metal tube with a cap already screwed onto its threaded neck. Shoulder 22 on the lower end of hopper assists in locating jig 24 relative thereto as cam 26 and follower 28 elevate the unfilled tube.
  • the method of this invention is particularly useful in the packaging of viscous solutions of vinyl plastics.
  • Typical of the polyvinyl resin bases of such plastics are polyvinyl acetate, polyvinyl alcohol, polystyrene and polyvinyl chloride.
  • a further description of such vinyl polymers can be found, for example, in Kirk-Othner, Encyclopedia of Chemical Technology, 2nd Edition (1970), Vol. 21, pp. 304-440.
  • a representative formulation which can be successfully packaged by the method of this invention is a known denture adhesive prepared by admixing in the manner of this invention -85 parts of polyvinyl acetate beads having an average viscosity in the range of 15-25 cps. together with 15-70 parts of a suitable solvent therefor such as ethyl alcohol, additionally incorporating the usual amounts of plasticizer and coloring agents.
  • a predetermined quantity of beaded polymeric material is fed into hopper 10 and then controller 36 is energized to start the operation of motor 46 and thus elevate jig 24 against retaining shoulder 22. Controller 36 also energizes motor 42 which drives feed means 34 so that the helix 54 advances the beads onto plate 56. Plate 56 rotates rapidly and propels the beads radially outwardly against the walls of chamber 12 by virtue of the centrifugal force. The beads then follow the configuration of the hopper walls and fall downwardly into the collapsible tube retained within the cavity 60 in jig 24. The path of travel of the beads through the hopper is indicated by appropriate directional arrows in FIG. 2.
  • the initial quantity of liquid dispensed wets the bottom of the inverted tube in the vicinity of the cap to thereby prevent undissolved beads from gathering at such spot and clogging the narrow neck of the tube.
  • the liquid and the beaded material are simultaneously introduced into the tube retained in jig 24 so that each bead is saturated with the solvent until the predetermined quantity of beads has been collected in the tube.
  • conduit 32 continues to supply liquid for a fraction of a second after the last bead has been discharged.
  • conduit 32 is located on the vertical axis of hopper 10 and jig 24 so that the beads will be saturated in a uniform fashion.
  • jig 24 is lowered by motor 46 and cam 26, and the filled tube is removed therefrom and then sealed by crimping or rolling over the open end of the tube.
  • the tube is then retained in a storage facility where it will be allowed to age.
  • the aging process which takes place in a commercially acceptable time frame aids in the formation of a uniform product of high quality.
  • the aging process occurs in the sealed tube over a period of at least one week. In many instances, however, an aging period of four to six weeks is commonplace. The range of one to six weeks defines a commercially acceptable time frame.
  • FIGS. 3 and 4 depict an alternative embodiment of the means for saturating the beads of polymeric material with solvent to form a viscous vinyl plastic solution.
  • An elongated needle 62 with a series of radial apertures 64, 66, 68 and 70 is utilized in lieu of conduit 32. Needle 62 is inserted axially into the tube retained within jig 24, and the pre-determined quantity of liquid containing the solvent, plasticizer, and color is then discharged, under pressure, through apertures 62, 64, 66 and 68. The needle can be slowly withdrawn as the tube is gradually filled with the polymeric beads, and many levels or rows of axially spaced apertures may be uti lized.
  • a method for packaging a viscous vinyl plastic solution comprising the steps of:
  • the method of claim 1 further including the step of introducing a small quantity of solvent into the package after the last bead has been deposited therein.
  • the method of claim 1 further including the steps of subjecting the beads to a centrifugal force to sepa- 7.
  • the method of claim 6 wherein the needle is axially lowered into the package prior to introducing the solvent into the package, and the needle is axially withdrawn from the package subsequent to discharging the solvent, the axial movement of the needle assisting in the wetting of the beads in the package.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Dental Preparations (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Basic Packing Technique (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Tubes (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Adhesives Or Adhesive Processes (AREA)
US00267905A 1972-06-30 1972-06-30 Method for packaging viscous vinyl plastic solutions Expired - Lifetime US3777447A (en)

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US26790572A 1972-06-30 1972-06-30

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US00267905A Expired - Lifetime US3777447A (en) 1972-06-30 1972-06-30 Method for packaging viscous vinyl plastic solutions

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US (1) US3777447A (enrdf_load_stackoverflow)
JP (1) JPS4958130A (enrdf_load_stackoverflow)
DE (1) DE2332877A1 (enrdf_load_stackoverflow)
FR (1) FR2190674B1 (enrdf_load_stackoverflow)
GB (1) GB1435753A (enrdf_load_stackoverflow)
NL (1) NL7309020A (enrdf_load_stackoverflow)
SE (1) SE7309161L (enrdf_load_stackoverflow)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117645A (en) * 1977-08-19 1978-10-03 L.A. Dreyfus Company Method for handling and transporting thermoplastic materials
US4604854A (en) * 1983-12-05 1986-08-12 Golden Valley Foods Inc Machine for forming, filling and sealing bags
US4606174A (en) * 1984-03-08 1986-08-19 Tetra Pak International Ab Method and an arrangement for the manufacture of packing containers
US5335480A (en) * 1992-12-21 1994-08-09 Emmber Foods, Inc. Methods of and apparatus for packaging a product
US5361560A (en) * 1992-10-13 1994-11-08 Ralph Sandolo Apparatus for flavoring and packaging coffee
US6396036B1 (en) 1999-11-19 2002-05-28 Conagra, Inc. Microwave packaging having patterned adhesive; and methods
US20030207005A1 (en) * 2002-05-03 2003-11-06 Martin John M. Method and system for retaining high viscosity of fluid food product with the reduction of gums
US20040107845A1 (en) * 2002-11-29 2004-06-10 Sunter Adrian Meredith Weighing and flavoring system, and packaging apparatus
US20100154357A1 (en) * 2007-06-13 2010-06-24 Wacker Chemie Ag Method and device for packaging polycrystalline bulk silicon
USD653495S1 (en) 2006-06-09 2012-02-07 Conagra Foods Rdm, Inc. Container basket
US8302528B2 (en) 2005-10-20 2012-11-06 Conagra Foods Rdm, Inc. Cooking method and apparatus
USD671012S1 (en) 2011-06-14 2012-11-20 Conagra Foods Rdm, Inc. Microwavable bag
USD680426S1 (en) 2012-06-12 2013-04-23 Conagra Foods Rdm, Inc. Container
US8610039B2 (en) 2010-09-13 2013-12-17 Conagra Foods Rdm, Inc. Vent assembly for microwave cooking package
US8613249B2 (en) 2007-08-03 2013-12-24 Conagra Foods Rdm, Inc. Cooking apparatus and food product
USD703547S1 (en) 2011-06-14 2014-04-29 Conagra Foods Rdm, Inc. Microwavable bag
US8729437B2 (en) 2007-01-08 2014-05-20 Con Agra Foods RDM, Inc. Microwave popcorn package, methods and product
US8850964B2 (en) 2005-10-20 2014-10-07 Conagra Foods Rdm, Inc. Cooking method and apparatus
US8866056B2 (en) 2007-03-02 2014-10-21 Conagra Foods Rdm, Inc. Multi-component packaging system and apparatus
USD717162S1 (en) 2012-06-12 2014-11-11 Conagra Foods Rdm, Inc. Container
US8887918B2 (en) 2005-11-21 2014-11-18 Conagra Foods Rdm, Inc. Food tray
US9027825B2 (en) 2012-06-12 2015-05-12 Conagra Foods Rdm, Inc. Container assembly and foldable container system
US9132951B2 (en) 2005-11-23 2015-09-15 Conagra Foods Rdm, Inc. Food tray
US9211030B2 (en) 2005-10-20 2015-12-15 Conagra Foods Rdm, Inc. Steam cooking apparatus
US9676539B2 (en) 2013-05-24 2017-06-13 Graphic Packaging International, Inc. Package for combined steam and microwave heating of food
US10450097B2 (en) * 2014-10-15 2019-10-22 I.M.A. Industria Macchine Automatiche S.P.A. Device and method for feeding and dosing filter bags with infusion or extraction products

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283307A (ja) * 1988-09-16 1990-03-23 Mitsubishi Rayon Co Ltd 動揺歯固定用材料
DE102005018243A1 (de) * 2005-04-19 2006-10-26 Henkel Kgaa Verfahren zur Erzeugung flüssiger Zubereitungen mit Festkörpergehalt

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653139A (en) * 1950-05-20 1953-09-22 Westinghouse Electric Corp In-place expanded cellular resinous bodies and processes for producing them from phenol-aldehyde resins with the aid of a peroxide
US3696584A (en) * 1970-10-23 1972-10-10 Brown Int Corp Apparatus for filling a container with a weighed load of fragile articles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653139A (en) * 1950-05-20 1953-09-22 Westinghouse Electric Corp In-place expanded cellular resinous bodies and processes for producing them from phenol-aldehyde resins with the aid of a peroxide
US3696584A (en) * 1970-10-23 1972-10-10 Brown Int Corp Apparatus for filling a container with a weighed load of fragile articles

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117645A (en) * 1977-08-19 1978-10-03 L.A. Dreyfus Company Method for handling and transporting thermoplastic materials
US4604854A (en) * 1983-12-05 1986-08-12 Golden Valley Foods Inc Machine for forming, filling and sealing bags
US4606174A (en) * 1984-03-08 1986-08-19 Tetra Pak International Ab Method and an arrangement for the manufacture of packing containers
US5361560A (en) * 1992-10-13 1994-11-08 Ralph Sandolo Apparatus for flavoring and packaging coffee
US5335480A (en) * 1992-12-21 1994-08-09 Emmber Foods, Inc. Methods of and apparatus for packaging a product
US6396036B1 (en) 1999-11-19 2002-05-28 Conagra, Inc. Microwave packaging having patterned adhesive; and methods
US20030207005A1 (en) * 2002-05-03 2003-11-06 Martin John M. Method and system for retaining high viscosity of fluid food product with the reduction of gums
WO2003092391A1 (en) * 2002-05-03 2003-11-13 Mars Incorporated Method and system for retaining high viscosity of fluid food product with the reduction of gums
US20040107845A1 (en) * 2002-11-29 2004-06-10 Sunter Adrian Meredith Weighing and flavoring system, and packaging apparatus
US10569949B2 (en) 2005-10-20 2020-02-25 Conagra Foods Rdm, Inc. Cooking method and apparatus
US8302528B2 (en) 2005-10-20 2012-11-06 Conagra Foods Rdm, Inc. Cooking method and apparatus
US9211030B2 (en) 2005-10-20 2015-12-15 Conagra Foods Rdm, Inc. Steam cooking apparatus
US9505542B2 (en) 2005-10-20 2016-11-29 Conagra Foods Rdm, Inc. Cooking method and apparatus
US8850964B2 (en) 2005-10-20 2014-10-07 Conagra Foods Rdm, Inc. Cooking method and apparatus
US9815607B2 (en) 2005-11-21 2017-11-14 Conagra Foods Rdm, Inc. Food tray
US8887918B2 (en) 2005-11-21 2014-11-18 Conagra Foods Rdm, Inc. Food tray
US9132951B2 (en) 2005-11-23 2015-09-15 Conagra Foods Rdm, Inc. Food tray
USD653495S1 (en) 2006-06-09 2012-02-07 Conagra Foods Rdm, Inc. Container basket
US8735786B2 (en) 2007-01-08 2014-05-27 Conagra Foods Rdm, Inc. Microwave popcorn package
US8729437B2 (en) 2007-01-08 2014-05-20 Con Agra Foods RDM, Inc. Microwave popcorn package, methods and product
US9079704B2 (en) 2007-01-08 2015-07-14 Conagra Foods Rdm, Inc. Microwave cooking package
US8866056B2 (en) 2007-03-02 2014-10-21 Conagra Foods Rdm, Inc. Multi-component packaging system and apparatus
US8833042B2 (en) * 2007-06-13 2014-09-16 Wacker Chemie Ag Method and device for packaging polycrystalline bulk silicon
US20100154357A1 (en) * 2007-06-13 2010-06-24 Wacker Chemie Ag Method and device for packaging polycrystalline bulk silicon
US8613249B2 (en) 2007-08-03 2013-12-24 Conagra Foods Rdm, Inc. Cooking apparatus and food product
US8610039B2 (en) 2010-09-13 2013-12-17 Conagra Foods Rdm, Inc. Vent assembly for microwave cooking package
USD703547S1 (en) 2011-06-14 2014-04-29 Conagra Foods Rdm, Inc. Microwavable bag
USD671012S1 (en) 2011-06-14 2012-11-20 Conagra Foods Rdm, Inc. Microwavable bag
US9027825B2 (en) 2012-06-12 2015-05-12 Conagra Foods Rdm, Inc. Container assembly and foldable container system
USD717162S1 (en) 2012-06-12 2014-11-11 Conagra Foods Rdm, Inc. Container
USD680426S1 (en) 2012-06-12 2013-04-23 Conagra Foods Rdm, Inc. Container
US9676539B2 (en) 2013-05-24 2017-06-13 Graphic Packaging International, Inc. Package for combined steam and microwave heating of food
US10301100B2 (en) 2013-05-24 2019-05-28 Graphic Packaging International, Llc Package for combined steam and microwave heating of food
US10450097B2 (en) * 2014-10-15 2019-10-22 I.M.A. Industria Macchine Automatiche S.P.A. Device and method for feeding and dosing filter bags with infusion or extraction products

Also Published As

Publication number Publication date
FR2190674B1 (enrdf_load_stackoverflow) 1977-09-16
JPS4958130A (enrdf_load_stackoverflow) 1974-06-05
GB1435753A (en) 1976-05-12
DE2332877A1 (de) 1974-01-10
FR2190674A1 (enrdf_load_stackoverflow) 1974-02-01
NL7309020A (enrdf_load_stackoverflow) 1974-01-02
SE7309161L (enrdf_load_stackoverflow) 1973-12-31

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