US3123491A - Beaumont - Google Patents
Beaumont Download PDFInfo
- Publication number
- US3123491A US3123491A US3123491DA US3123491A US 3123491 A US3123491 A US 3123491A US 3123491D A US3123491D A US 3123491DA US 3123491 A US3123491 A US 3123491A
- Authority
- US
- United States
- Prior art keywords
- container
- palladium
- oxygen
- vacuum
- catalyst
- 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
Links
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 54
- 239000001301 oxygen Substances 0.000 claims description 26
- 229910052760 oxygen Inorganic materials 0.000 claims description 26
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 26
- 229910052763 palladium Inorganic materials 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive Effects 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 8
- 230000002939 deleterious Effects 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 description 22
- 239000001257 hydrogen Substances 0.000 description 8
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 6
- 239000010408 film Substances 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 239000005028 tinplate Substances 0.000 description 6
- 229920001944 Plastisol Polymers 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 239000004922 lacquer Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Chemical compound O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 4
- 239000004014 plasticizer Substances 0.000 description 4
- 239000004999 plastisol Substances 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 210000004080 Milk Anatomy 0.000 description 2
- 230000001680 brushing Effects 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 230000000737 periodic Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000009461 vacuum packaging Methods 0.000 description 2
Images
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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B25/00—Packaging other articles presenting special problems
- B65B25/001—Packaging other articles presenting special problems of foodstuffs, combined with their conservation
Definitions
- Products such as coffee, nuts and milk powder, which deteriorate when stored in contact with oxygen, are frequently packed into her-metically sealed containers from which most of the air is withdrawn. This may be effected simply by:
- Cans treated in these ways are said to be vacuumpacked and double vacuum-packed respectively; if the cans are finally gassed down to atmospheric pressure they are said to be gas-packed.
- An object of the invention is to provide an improved method of disposing of this residual amount of oxygen in a hermetically sealed container, which overcomes the disadvantages inherent in prior methods.
- this improved method consists in applying a catalyst Vietnamese as palladium in finely divided form to an inside surface or surfaces of a hermetically scalable container by means of a medium in which the catalyst is dispersed so that it is capable of being secured adhesively to such surface or surfaces in a condition to catalyse the chemical combination of the residual oxygen with introduced hydrogen to form water.
- One possible medium in which to disperse the finely divided catalyst ⁇ such as palladium-on-alumina powder, is a plaistiscl compound which is essentially a paste formed by dispersing a synthetic resin (usually polyvinyl chloride) in a suitable plasticiser.
- the finely divided catalyst powder must be uniformly and homogeneously incorporated in this medium before application.
- a container lid or end is preferably effected by the utilisation of conventional equipment presently available for applying such plastisol compounds to various types of caps, closures, and other components.
- the components After heating and deposition of the medium by way of a film or layer, the components are heated in an oven in order to gel or solidify such medium.
- This film or layer may be 4applied annularly.
- An outwardly deformed concentric depression or channel may be provided to receive such annular film or layer of the medium.
- the catalyst is dispersed in an internal can lacquer such as is commonly used for protectively coating metal sheets in the tinplate container industry, and may be applied by any of the means commonly used in the industry including brushing. Before application it may be necessary to ensure that the dispersion is uniform, eiig., by periodic stirring of the contents of a container from which the dispersion is supplied.
- An advantage of this improved method is that it is possible, by the use of one vacuumising and one gassing operation, to ensure that every trace of oxygen is removed from the interior of the container, such as a can, thereby providing complete protection of the product from the physical and chemical changes which contact with oxygen brings about.
- FIGURE l is a plan view of lid or bottom end component of a container of known type made from tinplate with the catalyst medium applied thereto;
- HGURE 2 is a sectional view taken on line Il-il of FIGURE l.
- reference 1 denotes a lid yor bottom end component for a container to which an annular layer 2 of the catalyst carrying medium has been applied by being deposited in an annular groove 3 made by deforming the material in an outward direction.
- the catalyst carrying medium is preferably applied by means of a nozzle past which the component l is arranged to be rotated by apparatus ⁇ of known construction used in the tinplate container making industry.
- a method of disposing of the residual amount of oxygen in a hermetically sealed container filled with foodstuff comprising homogeneously dis-persing palladium in finely divided form in an adhesive liquid having no deleterious effect on the contents of said container and then applying to a predetermined area of the inside surface of said container prior to its being filled with foodstuff a thin film of said adhesive liquid with dispersed palladium therein.
- liquid with dispersed palladium therein is a plastisol compound, comprising a paste formed by dispersing a polyvinyl chloride synthetic resin in a suitable plasticiser.
Description
March 3, 1964 L. BEAUMONT 3,123,491
METHOD oF COATING THE INSIDE SURFACE oF A CONTAINER WITH PALLADIUM AND ADHESIVE FDR VACUUM-PACKING oF EDIBLE AND LIKE PRODUCTS EiledJune 15, 1960 FIG. 2
1 I ID OR BOTTOM 1 LID OR BOTTOM MMM. WW 4I'I IMU.
INTERNAL CAN L AcQuER PAI-LADIUM IN CAN ACQUER 3ANNULAR GRoovE Lew/'s Beau/hom l NVE NTOR ATTORN EYS United States Patent O 3,123,491 METHD F COA'HNG THE INSDE SURFACE 0F A CNTAINER WITH PALLADIUM AND ADHE- SWE FR VACUUM-PACKHNG 0F EDHBLE AND LIKE PRGDUCTS Lewis Beaumont, Johannesburg, Transvaal, Republic of South Africa, assignor to The Metal Box Company of South Africa Limited, Johannesburg, rll`ransvznil, Republic of South Africa Filed June 15, 196i), Ser. No. 36,227 I Claims priority, application Republic of South Africa June 15, 1959 Claims. (Cl. 117-8) the vacuum- This invention relates to improvements in i hermetrcally packing of edible and other products in sealed containers :such -as cans or tins.
Products such as coffee, nuts and milk powder, which deteriorate when stored in contact with oxygen, are frequently packed into her-metically sealed containers from which most of the air is withdrawn. This may be effected simply by:
(l) Sealing the cans under a vacuum, or
(2) By dissipating this vacuum with an inert gas such as nitrogen or carbon dioxide and drawing a vacuum for la second time before sealing so as to remove a large percentage of the oxygen remaining in the can after the first evacuation.
Cans treated in these ways are said to be vacuumpacked and double vacuum-packed respectively; if the cans are finally gassed down to atmospheric pressure they are said to be gas-packed.
When vacuum or gas-packing cans under commercial conditions, it is rarely possible to draw a vacuum of more that 2 of mercury, which still leaves 2% of oxygen in the cans. Gassing and revacuurnising of cour-se removes the major portion of the remaining 2% of oxygen, but this double vacuurnising is Isomewhat inconvenient because of the time-consuming nature of the operation.
It is well known that certain catalysts such as palladium are able to effect a combination between oxygen and hydrogen to form water, and this knowledge has been used for many years to bring about oxygen-free conditions in laboratory containers by drawing a vacuum, partially dissipating this vacuum with hydrogen, and allowing the catalyst to bring about a combination of the oxygen remaining in the container when the hydrogen is introduced.
It is also known to attach a small capsule containing a catalyst such as palladium on the inside of the lid of the can. This method of disposing of the residual oxygen is, like the others, time-consuming.
An object of the invention is to provide an improved method of disposing of this residual amount of oxygen in a hermetically sealed container, which overcomes the disadvantages inherent in prior methods.
According to the invention, this improved method consists in applying a catalyst euch as palladium in finely divided form to an inside surface or surfaces of a hermetically scalable container by means of a medium in which the catalyst is dispersed so that it is capable of being secured adhesively to such surface or surfaces in a condition to catalyse the chemical combination of the residual oxygen with introduced hydrogen to form water.
It will be understood that the medium used must be 3,123,491 Patented Mar. 3, 1964 one which has no deleterious effect on the contents of the container.
One possible medium in which to disperse the finely divided catalyst `such as palladium-on-alumina powder, is a plaistiscl compound which is essentially a paste formed by dispersing a synthetic resin (usually polyvinyl chloride) in a suitable plasticiser. The finely divided catalyst powder must be uniformly and homogeneously incorporated in this medium before application.
Application to a container lid or end is preferably effected by the utilisation of conventional equipment presently available for applying such plastisol compounds to various types of caps, closures, and other components. After heating and deposition of the medium by way of a film or layer, the components are heated in an oven in order to gel or solidify such medium. This film or layer may be 4applied annularly. An outwardly deformed concentric depression or channel may be provided to receive such annular film or layer of the medium.
Alternatively and indeed preferably the catalyst is dispersed in an internal can lacquer such as is commonly used for protectively coating metal sheets in the tinplate container industry, and may be applied by any of the means commonly used in the industry including brushing. Before application it may be necessary to ensure that the dispersion is uniform, eiig., by periodic stirring of the contents of a container from which the dispersion is supplied.
An advantage of this improved method is that it is possible, by the use of one vacuumising and one gassing operation, to ensure that every trace of oxygen is removed from the interior of the container, such as a can, thereby providing complete protection of the product from the physical and chemical changes which contact with oxygen brings about.
To enable the invention to be more clearly' understood and carried into practice, reference is now made to the accompanying drawings in which like references denote like parts throughout both views.
In the drawings:
FIGURE l is a plan view of lid or bottom end component of a container of known type made from tinplate with the catalyst medium applied thereto; and
Referring to the drawings, reference 1 denotes a lid yor bottom end component for a container to which an annular layer 2 of the catalyst carrying medium has been applied by being deposited in an annular groove 3 made by deforming the material in an outward direction. The catalyst carrying medium is preferably applied by means of a nozzle past which the component l is arranged to be rotated by apparatus `of known construction used in the tinplate container making industry.
What I claim is:
l. A method of disposing of the residual amount of oxygen in a hermetically sealed container filled with foodstuff comprising homogeneously dis-persing palladium in finely divided form in an adhesive liquid having no deleterious effect on the contents of said container and then applying to a predetermined area of the inside surface of said container prior to its being filled with foodstuff a thin film of said adhesive liquid with dispersed palladium therein.
2. A method according to claim 1 wherein said container has a lid with an outwardly deformed groove and said adhesive liquid with dispersed palladium therein is applied to said outwardly deformed groove.
3. A method according to claim 1 in which said adhesive liquid with dispersed palladium therein is applied to an outwardly deformed groove in the bottom of the container.
4. A method according to claim 1 in which said liquid with dispersed palladium therein is an internal can lacquer.
5. A method according to claim 1 in which said liquid with dispersed palladium therein is a plastisol compound, comprising a paste formed by dispersing a polyvinyl chloride synthetic resin in a suitable plasticiser.
References Cited in the le of this patent UNITED STATES PATENTS Norton Feb. 8, 1905 Gotty May 22, 1917 Young Aug. 25, 1925 Bertorello et al. June 18, 1957 Quin Sept. 30, 1958 Hettinger et al. July 7, 1959 Rhoda et al. Dec. 1, 1959 FOREIGN PATENTS Great Britain uly 27, 1955
Claims (1)
1. A METHOD OF DISPOSING OF THE RESIDUAL AMOUNT OF OXYGEN IN A HERMETICALLY SEALED CONTAINER FILLED WITH FOODSTUFF COMPRISING HOMOGENOUSLY DISPERSING PALLADIUM IN FINELY DIVIDED FORM IN AN ADHESIVE LIQUID HAVING NO DELETERIOUS EFFECT ON THE CONTENTS OF SAID CONTAINER AND THEN APPLYING TO A PREDETERMINED AREA OF THE INSIDE SURFACE OF SAID CONTAINER PRIOR TO ITS BEING FILLED WITH FOODSTUFF A THIN FILM OF SAID ADHESIVE LIQUID WITH DISPERSED PALLADIUM THEREIN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3123491A true US3123491A (en) | 1964-03-03 |
Family
ID=3453052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US3123491D Expired - Lifetime US3123491A (en) | Beaumont |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3123491A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3255020A (en) * | 1963-08-23 | 1966-06-07 | Air Prod & Chem | System for packaging |
| US3369859A (en) * | 1963-08-23 | 1968-02-20 | Air Prod & Chem | Packaging system |
| US3437428A (en) * | 1966-03-21 | 1969-04-08 | Universal Oil Prod Co | Oxygen scavenging from closed containers |
| US3437427A (en) * | 1966-03-16 | 1969-04-08 | Universal Oil Prod Co | Oxygen scavenging from closed containers |
| US3437426A (en) * | 1965-08-12 | 1969-04-08 | Universal Oil Prod Co | Method of removing oxygen from a confined zone and catalyst therefor |
| US3437425A (en) * | 1965-07-12 | 1969-04-08 | Universal Oil Prod Co | Method of removing oxygen from closed containers and catalyst therefor |
| FR2367680A1 (en) * | 1976-10-18 | 1978-05-12 | Gen Foods Corp | Sealed container for roasted ground coffee - coated internally with aroma solvent e.g. wax, glyceride or silicone for aroma retention |
| EP0072419A2 (en) * | 1981-08-17 | 1983-02-23 | The Continental Group, Inc. | Process for improving the organoleptic properties of canned green vegetables |
| WO2000026094A3 (en) * | 1998-11-02 | 2000-07-20 | Lord Corp | Container for storing sulfur-containing compounds |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US863086A (en) * | 1905-02-08 | 1907-08-13 | Automatic Vacuum Canning Company | Can. |
| US1227259A (en) * | 1916-08-29 | 1917-05-22 | Gotty Gas Lighting Company | Production of self-lighting gas-mantles. |
| US1848290A (en) * | 1932-03-08 | Can covers | ||
| GB734197A (en) * | 1952-06-23 | 1955-07-27 | Mini Of Supply | Improved process for the preservation of foodstuffs or the like |
| US2795818A (en) * | 1954-05-04 | 1957-06-18 | Bertorello Jack | Machine for applying sealing compound to can or container tops |
| US2854487A (en) * | 1955-04-12 | 1958-09-30 | Distillers Co Yeast Ltd | Process for the manufacture of carbinols |
| US2893948A (en) * | 1955-01-10 | 1959-07-07 | Engelhard Ind Inc | High temperature activation of a palladium-alumina reforming catalyst |
| US2915406A (en) * | 1958-03-03 | 1959-12-01 | Int Nickel Co | Palladium plating by chemical reduction |
-
0
- US US3123491D patent/US3123491A/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1848290A (en) * | 1932-03-08 | Can covers | ||
| US863086A (en) * | 1905-02-08 | 1907-08-13 | Automatic Vacuum Canning Company | Can. |
| US1227259A (en) * | 1916-08-29 | 1917-05-22 | Gotty Gas Lighting Company | Production of self-lighting gas-mantles. |
| GB734197A (en) * | 1952-06-23 | 1955-07-27 | Mini Of Supply | Improved process for the preservation of foodstuffs or the like |
| US2795818A (en) * | 1954-05-04 | 1957-06-18 | Bertorello Jack | Machine for applying sealing compound to can or container tops |
| US2893948A (en) * | 1955-01-10 | 1959-07-07 | Engelhard Ind Inc | High temperature activation of a palladium-alumina reforming catalyst |
| US2854487A (en) * | 1955-04-12 | 1958-09-30 | Distillers Co Yeast Ltd | Process for the manufacture of carbinols |
| US2915406A (en) * | 1958-03-03 | 1959-12-01 | Int Nickel Co | Palladium plating by chemical reduction |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3255020A (en) * | 1963-08-23 | 1966-06-07 | Air Prod & Chem | System for packaging |
| US3369859A (en) * | 1963-08-23 | 1968-02-20 | Air Prod & Chem | Packaging system |
| US3437425A (en) * | 1965-07-12 | 1969-04-08 | Universal Oil Prod Co | Method of removing oxygen from closed containers and catalyst therefor |
| US3437426A (en) * | 1965-08-12 | 1969-04-08 | Universal Oil Prod Co | Method of removing oxygen from a confined zone and catalyst therefor |
| US3437427A (en) * | 1966-03-16 | 1969-04-08 | Universal Oil Prod Co | Oxygen scavenging from closed containers |
| US3437428A (en) * | 1966-03-21 | 1969-04-08 | Universal Oil Prod Co | Oxygen scavenging from closed containers |
| FR2367680A1 (en) * | 1976-10-18 | 1978-05-12 | Gen Foods Corp | Sealed container for roasted ground coffee - coated internally with aroma solvent e.g. wax, glyceride or silicone for aroma retention |
| EP0072419A2 (en) * | 1981-08-17 | 1983-02-23 | The Continental Group, Inc. | Process for improving the organoleptic properties of canned green vegetables |
| EP0072419A3 (en) * | 1981-08-17 | 1984-09-05 | The Continental Group, Inc. | Process for improving the organoleptic properties of canned green vegetables |
| WO2000026094A3 (en) * | 1998-11-02 | 2000-07-20 | Lord Corp | Container for storing sulfur-containing compounds |
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