MXPA97009989A - Cover lid for oxygen absorbing container - Google Patents
Cover lid for oxygen absorbing containerInfo
- Publication number
- MXPA97009989A MXPA97009989A MXPA/A/1997/009989A MX9709989A MXPA97009989A MX PA97009989 A MXPA97009989 A MX PA97009989A MX 9709989 A MX9709989 A MX 9709989A MX PA97009989 A MXPA97009989 A MX PA97009989A
- Authority
- MX
- Mexico
- Prior art keywords
- container
- lid
- liner
- oxygen
- chloride
- Prior art date
Links
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 84
- 239000001301 oxygen Substances 0.000 title claims abstract description 84
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000006096 absorbing agent Substances 0.000 claims abstract description 29
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 30
- 229910052742 iron Inorganic materials 0.000 claims description 15
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 12
- 239000011780 sodium chloride Substances 0.000 claims description 10
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 8
- 239000004800 polyvinyl chloride Substances 0.000 claims description 8
- 229920001944 Plastisol Polymers 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive Effects 0.000 claims description 7
- 239000004999 plastisol Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 3
- 108010015776 EC 1.1.3.4 Proteins 0.000 claims description 3
- 229940116332 GLUCOSE OXIDASE Drugs 0.000 claims description 3
- 239000004366 Glucose oxidase Substances 0.000 claims description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H Tricalcium phosphate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims description 3
- 235000019270 ammonium chloride Nutrition 0.000 claims description 3
- 239000001506 calcium phosphate Substances 0.000 claims description 3
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 3
- 235000011010 calcium phosphates Nutrition 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 235000019420 glucose oxidase Nutrition 0.000 claims description 3
- 239000011630 iodine Substances 0.000 claims description 3
- 229910052740 iodine Inorganic materials 0.000 claims description 3
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- QDHHCQZDFGDHMP-UHFFFAOYSA-N monochloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 claims description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 239000011135 tin Substances 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L MgCl2 Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims 4
- BFNBIHQBYMNNAN-UHFFFAOYSA-N Ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims 2
- 235000011130 ammonium sulphate Nutrition 0.000 claims 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L cacl2 Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims 2
- 239000001110 calcium chloride Substances 0.000 claims 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims 2
- 229910001629 magnesium chloride Inorganic materials 0.000 claims 2
- 239000001103 potassium chloride Substances 0.000 claims 2
- 235000011164 potassium chloride Nutrition 0.000 claims 2
- 239000001488 sodium phosphate Substances 0.000 claims 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims 2
- 238000005507 spraying Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 230000002093 peripheral Effects 0.000 description 5
- 239000011358 absorbing material Substances 0.000 description 4
- 239000000969 carrier Substances 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 235000013405 beer Nutrition 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- -1 but not limited to Chemical class 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052570 clay Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- AZUZXOSWBOBCJY-UHFFFAOYSA-N 6-hydroxy-5-methyl-4,11-dioxoundecanoic acid Chemical group OC(=O)CCC(=O)C(C)C(O)CCCCC=O AZUZXOSWBOBCJY-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000004278 EU approved seasoning Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- DTYCRHCCLVCUDT-UHFFFAOYSA-J calcium;magnesium;tetrachloride Chemical compound [Mg+2].[Cl-].[Cl-].[Cl-].[Cl-].[Ca+2] DTYCRHCCLVCUDT-UHFFFAOYSA-J 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- VOLSCWDWGMWXGO-UHFFFAOYSA-N cyclobuten-1-yl acetate Chemical compound CC(=O)OC1=CCC1 VOLSCWDWGMWXGO-UHFFFAOYSA-N 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atoms Chemical class [H]* 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920005638 polyethylene monopolymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 235000021067 refined food Nutrition 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000007784 solid electrolyte Chemical class 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The present invention relates to a container lid, characterized in that it comprises: a base portion having a perimeter, a substantially cylindrical portion extending perpendicularly from said perimeter of said base portion and defining an internal surface of said lid. container, and a fully discovered resin liner disposed in direct contact with said inner surface of said container lid, and which is attached to said internal surface with sufficient contact force to avoid additional mechanisms of mechanical sealing, said liner having an oxygen absorber dispersed therein, whereby said container lid is adapted to seal an opening in a container and to absorb the oxygen contained therein.
Description
PFlRfl TflPfl LINK OXYGEN ABSORBING CONTAINER
FIELD OF THE INVENTION
This invention relates generally to oxygen absorbers. It relates in particular to an oxygen absorber dispersed in a liner of a container lid.
BACKGROUND OF THE INVENTION
Many products are susceptible to putrefaction, denaturation, mold growth, alteration, rancidity, oxidation, or other deterioration when brought into contact with oxygen. Examples of such products include beer, wine, juice, vinegar, sauces, seasonings, processed foods, bread, agricultural foods, meat and pharmaceutical and chemical products, among a variety of other things. The conservation of these products is distributed when mold, bacteria and other organisms that thrive in the presence of oxygen are present. These organisms cause putrefaction and change the flavor or quality of the product. In addition, some of the same products are likely to be affected by oxidation that changes the taste or quality of the product. In order to avoid such oxidation and growth of organisms and therefore to increase the storage stability of these products, the oxygen must be removed from the container in which the products are stored. One technique to avoid or reduce the presence of oxygen is packing under vacuum. This involves evacuating a container before loading it with the product. Another technique is the displacement of gas. Here an inert gas such as nitrogen is used to displace air and therefore oxygen in a container. The displacement can be done before or after the product is loaded into the container. Another technique is a spurning method. Particularly applicable to products such as beers, a jet skimmer can be used to inject a small amount of water under pressure to froth the beer before loading it into the container. The foam acts as a mechanical deoxygenizer, forcing oxygen out of the container. The common disadvantages associated with all the above techniques are the requirement of large-scale apparatus and operation and the difficulty of removing dissolved oxygen in the product achieved also, in general, that techniques leave between 0.2% and 5.0% oxygen in the container. This amount of oxygen in the container is enough to adversely affect most products. A simpler, more efficient technique for removing oxygen involves placing an oxygen absorber in the container with the product. For this purpose, it is known to fix an oxygen absorber on the underside of the lid of the container. For example, in the patent of E.U.fl. Do not.
No. 4,287,995, issued a rioriya, an oxygen absorber is placed on the underside of the lid. The oxygen absorber is held in place by a gas-permeable film cover layer which prevents contact between the absorber and the contents of the container. The Patent of E.U.P. No. 5,143,763, issued to Ya ada et al., Discloses a multi-layer composition adapted to be fixed to a liner on the underside of the lid of the container. The layers of the composition include (1) an adhesive layer that fixes the multi-layered structure to the liner of the lid, (2) an oxygen absorbing layer consisting of an oxygen absorber dispersed in a resin, and (3) a oxygen permeable film layer covering the absorber layer. The oxygen permeable film layer prevents the oxygen absorber from leaving the resin to the contents of the container. The adhesive layer is disposed between the liner of the lid and the oxygen absorbing layer, completely separating the liner from the lid of the oxygen absorbing layer. The Patent of E.U.fi. No. 5,274,024, issued to Koyama et al., Also discloses a multi-layer composition adapted to be affixed to the underside of a container lid. The Patent describes an adhesive layer, used to fix an oxygen absorbing layer to the lid, and an outer layer on the oxygen absorbing layer. The outer layer prevents direct contact between the contents of the container and the oxygen absorber. Again, the adhesive layer is arranged between the cap and the oxygen absorbing layer, completely separating the cap from the oxygen absorbing layer. However, in all known devices, the separated layers are used to achieve the functions of coating the lid in the container, adhering the oxygen absorber to the lid, absorbing the oxygen and covering the oxygen absorber to prevent contact with the content inside the container.
BRIEF DESCRIPTION OF THE INVENTION
The present invention provides a container lid having a base portion, a substantially cylindrical portion extending perpendicularly from a perimeter of the portion of the base to define an internal surface of the container lid, and an uncovered liner disposed directly on the inner surface of the lid of the container, the liner having an oxygen absorber disposed therein. The lid of the container is adapted to seal an opening in a container and to absorb oxygen within the container. The present invention also provides a method for removing oxygen from a container by dispersing an oxygen absorber in a liner, fixing the liner directly to an inner surface of a container lid and placing the lid over an opening in the container such that the Liner on the lid of the container seals the opening and absorbs oxygen inside the container.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a cross-sectional side view of an oxygen absorbing container lid in accordance with an illustrative embodiment of the present invention; Figure 2 is a partially cross-sectional perspective view of an oxygen absorbing container lid in accordance with an illustrative embodiment of the present invention; Figure 3 is a partially cross-sectional side view of an oxygen absorbing container lid attached to the container in accordance with an illustrative embodiment of the present invention; Figure 4 is a cross-sectional side view of an oxygen absorbing cap in accordance with another illustrative embodiment of the present invention; Figure 5 is a top view of the embodiment shown in Figure 4.
DETAILED DESCRIPTION OF THE INVENTION
The present invention provides an oxygen absorbing cap with an oxygen absorber dispersed in the liner of the lid, the liner being directly attached to the inner surface of the lid. No cover layer is used on the lining. When said lid is secured to the container, the oxygen absorbing liner in the lid acts as a sealant, providing a seal between the lid and the container, and as an oxygen absorber, removing oxygen from the interior of the container. Figure 1 shows a side view of an illustrative embodiment of the present invention. The lid 11 includes a base portion 20 and a cylindrical portion 21 that is typically formed integrally with the base portion 20. The lid 11 may be a plastic material, such as polyvinyl chloride, polystyrene or polycarbonate. Chapter 11 can also be a metallic material, such as aluminum or iron. Slots 13 are formed on the inner surface of the lid 11 to coincide with the threads on the container opening (not shown). The liner 12 is disposed on the inner surface of the lid 11. The liner 12 in the illustrated embodiment includes a carrier resin with an oxygen absorbing material dispersed therein. Oxygen-absorbing materials useful in the present invention include iron, solid electrolyte salts, and glucose oxidase. The iron can be reduced iron with hydrogen, electrolytically reduced iron or chemically reduced iron. Although iron is preferred as the metal oxygen absorbing agent, it will be appreciated that other metals can be used. These are by way of example and not limitation, aluminum, copper, zinc, titanium, magnesium and tin. However, these other materials do not absorb oxygen as quickly as iron or have their oxygen absorbing capacity. Also, other elements that can be used in elemental or partially oxidized form are sodium, manganese, iodine, sulfur and phosphorus. These elements are not as effective as the iron because they do not have the oxygen absorbing capacity of the iron, the oxygen absorption rate of the iron or both. The oxygen absorbing salt may be sodium chloride or any other suitable compatible food salt including, but not limited to, sodium sulfate, sodium chloride, ammonium chloride, calcium phosphate and magnesium chloride. For products that are not food, other compatible salts that are not food can be used. A carrier resin for the oxygen absorbing material is preferably polyvinyl chloride plastisol. Plastisol of polyvinyl chloride is a known resin for coating the inner surface of container covers. Other resins that may be used as the carrier resin for the oxygen absorbing material and which also serve as suitable sealants include, but are not limited to, high density polypropylene, high density polyethylene, acrylic, ethylene vinyl acetate copolymer, ethylene vinyl acetate, polyvinyl acetate copolymer ethylene acetate copolymer, plasticized vinyl chloride, oxidized polyethylene homopolymer, and polyurethane. When plastisol of polyvinyl chloride is used as the carrier resin up to 75% by weight of the liner 12 it can be maya steel 200, a preferred oxygen absorber. The liner 12 is prepared by dispersing the oxygen absorbers within the vehicle resin (in a viscous liquid state) by mixing in a high speed electric mixer. The liner 12 is then sprayed onto the inner surface of the lid 11 in liquid form in accordance with methods known in the art. The liner 12 adheres to the lid 11, the lid 11 and the liner 12 are then heated (approximately 204.4 ° C for 2 1/2 minutes) to solidify the liner 12. Figure 2 is a perspective view showing the lining 12 coated on the inner surface of the lid 11. The lid 11 is fixed to a container by first heating the lid 11 until the liner 12 is softened. The lid 11 is then treated on the container, forming a thread in the liner 12 corresponding to the slots 13 in the cylindrical position 21 of the lid 11. As shown in Figure 3, the lid 11 fits securely over the opening of the container 15. The liner 12 seals the lid 11 to the container 15. In this way, the liner 12 ensures a proper fitting between the lid .1.1 and the container 15 and will facilitate the sealing function. In addition, the liner 12 absorbs oxygen within the container 15 without the need for additional layers, such as cover layers or adhesive layers. The invention provides an economical and practical method for absorbing oxygen within a container by combining the adhesive function (fixing the liner 12 to the lid 11), the oxygen absorbing function, and the sealing function of the container in a single element: the lining 12. Figure 4 is a side view of an alternative embodiment of the present invention. In the illustrative embodiment, the lid 11 has a peripheral liner 30 disposed about the intersection of the base portion 20 and cylindrical portion 21. The peripheral liner 30 extends over the slots 13 such that the slots will be formed in the lining peripheral 30 as the lid 11 is fixed to a container. This ensures sealing of the lid 11 to the container. The peripheral liner 30 does not include an oxygen absorber. The embodiment illustrated in Figure 4 also includes a central liner 31. The central liner 31 is disposed on the inner surface of the base portion 20. The central liner 31 is centrally arranged and circular in the illustrated embodiment, but any shape or thickness. The central liner 31 contains an oxygen absorber that absorbs oxygen within the container to which the lid 11 is attached. The oxygen absorber is dispersed in the central liner 31 as described above. The peripheral liner 30 and the central liner 31 are both sprayed on the lid 11 according to methods known in the art., and then heated to solidification. Figure 5 is a top view of the embodiment illustrated in Figure 4. This embodiment preserves the vehicle resin material used for the liners and oxygen absorbers. The following examples are presented to illustrate the present invention; They do not intend to limit it.
EXAMPLE 1
Plastisol of polyvinyl chloride in an amount of 10.35 grams was mixed with 12.51 grams of 200 mesh iron containing 2% sodium chloride. The mixture was made in a high speed electric mixer. A sample of the resulting lining material was coated on the inner surface of a container lid. The lid of the container was placed in a 500 cm3 clay flask containing 100 crn * of oxygen. A hole of 0.317 cm was made in the lid of the clay flask with a division placed over the hole to prevent oxygen escaping from the container. The container was left at room temperature at 100% relative humidity inside the bottle, and the amount of oxygen reabsorbed by the liner of the lid was measured. This procedure was repeated twice using different weights of lining material inside the lid. The results are tabulated below.
Oxygen absorbed over time (aiP)
Sample Sample Sample Average # 1 # 2 # 3 Time (1 .47 gms *) (1 .71 gms *) (1 .51 gms *) (1. .56 gms *)
22 hrs 10 10 10 10
46 hrs 15 14 15 15
96 hrs 24 22 24 23
184 hrs 37 32 34 34
234 hrs 37 32 37 35
330 hrs 51 41 48 47 * Weight of the coated lining on the inner surface of the lid. EXAMPLE 2
Plastisol of polyvinyl chloride in an amount of 8.40 grams was mixed with 5.17 grams of 200 mesh iron containing 2% sodium chloride in a high speed electric mixer. A sample of the resulting liner composition was coated on the inner surface of a container lid, which was placed in a 500-cc jar containing 100 cm3 of oxygen. A .317 cm hole was made in the mud flap lid with a split placed over the hole to prevent oxygen escaping from the container.
The container was left at room temperature at 100% relative humidity inside the bottle and the amount of oxygen absorbed by the liner with time was measured. The procedure was repeated twice using different weight samples of liner inside the lid. The results are tabulated below.
Oxygen absorbed over time (cm3)
Sample Sample Sample Average # 1 # 2 # 3 Time (1 .47 gms *) (1 .71 gms *) (1 .51 gms *) (1. .56 gms *)
22 hrs 8 8 8 8
46 hrs 12 12 12 12
96 hrs 26 19 21 22
184 hrs 46 30 30 35
234 hrs 52 33 30 38
330 hrs 61 43 41 48 * Weight of the coated lining on the inner surface of the lid.
The results of Examples 1 and 2 show good oxygen uptake using the present invention. Using the invention, the results are achieved with reduced material and reduced manufacturing time. Although illustrated and described herein with reference to certain specific embodiments, the present invention is not intended to be limited to the details shown. Rather, various modifications can be made to the details within the scope and scale of equivalents of the claims and without departing from the spirit of the invention.
Claims (7)
1. - A container lid comprising: a base portion having a perimeter; a substantially cylindrical portion extending perpendicularly from said perimeter of the base portion and defining an internal surface of said container lid; and a completely uncoated resin layer disposed in direct contact with the inner surface of the container lid, said layer having an oxygen absorber dispersed therein, whereby said container lid is adapted to seal an opening in a container and to absorb oxygen inside said container.
2. A container lid according to claim 1, further characterized in that said liner is plastisol of polyvinyl chloride.
3. A container lid according to claim 1, further characterized in that said oxygen absorber is selected from the group consisting of iron, aluminum, copper, zinc, titanium, magnesium, tin, sodium, manganese, iodine, sulfur, phosphorus, sodium chloride, sodium sulfate, potassium chloride, ammonium chloride, ammonium sulfate, calcium chloride, sodium phosphate, calcium phosphate, glucose oxidase and magnesium chloride.
4. - A method for removing oxygen from a container comprising: dispersing an oxygen absorber in a resin liner; fixing the completely uncovered liner, immediately on an interior surface of a container lid without a separate adhesive; and placing the lid over an opening in the container such that the liner in the lid of the container seals the opening and absorbs oxygen within the container.
5. A method according to claim 4, further characterized in that the liner is plastisol of polyvinyl chloride.
6. A method according to claim 4, further characterized in that the liner is fixed to the inner surface of the lid of the container by spraying the liner in liquid form on the inner surface.
7. A method according to claim 4, further characterized in that the oxygen absorber is selected from the group consisting of iron, aluminum, copper, zinc, titanium, magnesium, tin, sodium, manganese, iodine, sulfur, phosphorus, sodium chloride, sodium sulfate, potassium chloride, ammonium chloride, ammonium sulfate, calcium chloride, sodium phosphate, calcium phosphate, glucose oxidase and magnesium chloride.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US61003695A | 1995-06-06 | 1995-06-06 | |
US08/471,573 | 1995-06-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
MX9709989A MX9709989A (en) | 1998-03-31 |
MXPA97009989A true MXPA97009989A (en) | 1998-10-15 |
Family
ID=
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5492742A (en) | Packages and containers comprising salicylic acid chelates as oxygen scavengers | |
US5839593A (en) | Oxygen absorbing container cap liner | |
US4421235A (en) | Oxygen absorbent-containing bag and container sealing member having the same | |
EP0664824B1 (en) | Polymer compositions containing oxygen scavenging compounds | |
US5202052A (en) | Amino polycarboxylic acid compounds as oxygen scavengers | |
US4877664A (en) | Materials having a deoxidation function and a method of removing oxygen in sealed containers | |
AU651349B2 (en) | Polymer compositions containing oxygen scavenging compounds | |
US6465065B1 (en) | Metal catalyzed ascorbate compounds as oxygen scavengers | |
US11225635B2 (en) | Beverage containers with controlled oxygen transmission features | |
EP0638487A1 (en) | Plastic multi-layer container having excellent flavor-retaining property and boiled rice-packaging material | |
JP3496427B2 (en) | Oxygen-absorbing resin composition and packaging material, multilayer packaging material, package, or packaging method using the same | |
US6709724B1 (en) | Metal catalyzed ascorbate compounds as oxygen scavengers | |
JPH0741930B2 (en) | Quick oxygen absorbent container lid | |
AU718600B2 (en) | An oxygen absorbing container cap liner | |
MXPA97009989A (en) | Cover lid for oxygen absorbing container | |
CA2841924A1 (en) | High water activity carbon containing oxygen absorber | |
AU743564B2 (en) | An oxygen absorbing container cap liner | |
JP3282567B2 (en) | Laminate for packaging containing activated oxygen absorber | |
AU4872600A (en) | An oxygen absorbing container cap liner | |
JPH0536845Y2 (en) | ||
JPH03195454A (en) | Packaged burdock |