AU2003233364A1 - Container made from thermoplastic material for a product to be protected from light - Google Patents
Container made from thermoplastic material for a product to be protected from light Download PDFInfo
- Publication number
- AU2003233364A1 AU2003233364A1 AU2003233364A AU2003233364A AU2003233364A1 AU 2003233364 A1 AU2003233364 A1 AU 2003233364A1 AU 2003233364 A AU2003233364 A AU 2003233364A AU 2003233364 A AU2003233364 A AU 2003233364A AU 2003233364 A1 AU2003233364 A1 AU 2003233364A1
- Authority
- AU
- Australia
- Prior art keywords
- container
- weight
- light
- level
- thermoplastic
- 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.)
- Abandoned
Links
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
-
- 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
- B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
-
- 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
- B65D81/30—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants by excluding light or other outside radiation
-
- 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
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
- B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
- B65D85/80—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials for milk
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Description
CERTIFICATION OF TRANSLATION I, Jean-Michel GORREE, of CABINET PLASSERAUD, 65-67, rue de la Victoire, 75440 PARIS CEDEX 09, FRANCE, do hereby declare that I am well acquainted with the French and English languages, and attest that the document attached is a true English language translation of the text of International Patent Application no. FR 03/00717. Dated this 19 th of January, 2004 Jean-Miche GO E WO 03/076277 - 1 - PCT/FRO3/00712 CONTAINER MADE FROM THERMOPLASTIC MATERIAL FOR A PRODUCT TO BE PROTECTED FROM LIGHT The present invention relates to improvements made to 5 containers, such as bottles, flasks, cans or the like, intended to contain products that have to be protected from the light, these containers being made of a thermoplastic and manufactured by blow-molding or stretch-blow-molding of a preform. 10 Certain products are adversely affected by the action of light. This is particularly the case with milk, the taste of 15 which changes under the effect of light, whether this be natural light or, to a far lesser extent, artificial light. This affected taste, known as the "light taste" 20 develops in two forms: * An "activated" taste (the taste of cabbage, a cooked taste or a mushroomy taste) which appears very quickly, * an oxidation taste (the taste of cardboard, 25 paper, metal or an oily taste) which develops more slowly. These unpleasant tastes are generated by several phenomena: 30 * breakdown of the amino acids and proteins, particularly with breakdown of methionine, which is the main cause of the "activated" taste; * conversion of vitamins, particularly a significant loss of water-soluble vitamins, for 35 example riboflavin, which is one of the causes of the "activated" taste, and a breakdown of the fat-soluble vitamins, for example retinyl palmitate (vitamin A) at wavelengths shorter than 450 nm; - 2 * oxidation of unsaturated fatty acids, which is the main cause of the oxidized taste. The influence of light varies also according to the 5 treatment to which the milk has been subjected. Finally, the onset of the unpleasant light taste in milk is dependent on several parameters: * the quantity of light (light intensity and duration of exposure) received by the milk, 10 * the wavelengths of the radiation, * the sensitivity of the product itself, * the temperature. In particular, it would seem that the light taste is 15 caused essentially by radiation at wavelengths shorter than 550 nm, in several windows of the visible and ultraviolet spectrum. The International Milk Federation therefore recommends the use of packaging allowing only 2% transmission of light at 400 nm and 8% transmission 20 at 500 nm. Finally, the thickness of the material and the volume/surface area ratio of the packaging also influence the onset of the bad taste. 25 From the foregoing explanations it will have been readily appreciated that the time for which milk or dairy products are kept may be lengthened if the protection against light can be made more effective. 30 Trials have been performed with tinted bottles. This has resulted in better keeping of the milk than with transparent or translucent bottles, but it has not proved to be possible to give the milk a good shelf 35 life under the required conditions. The solution very widely used for marketing long-life milk consists in manufacturing a multilayer container formed of at least three thin layers of thermoplastic - 3 materials (for example HDPE) bonded together, at least one of the internal layers being filled with pigments rendering it opaque to the light (an internal layer that is black in long life bottles). The shelf life may 5 then achieve the conditions required by the market. The same solution may be applied to PET: however, in this case, the manufacture of the initial preform is substantially complicated and expensive; furthermore, delamination of the layers may subsequently occur. 10 In general, the known solutions that are currently in use or conceivable, are complicated to implement, and are expensive and very complicated in the case of PET. 15 The users (manufacturers of containers and packages) therefore have a pressing need for containers made of thermoplastic (such as polyethylene terephthalate PET, polyethylene naphthalate PEN, high density polyethylene HDPE) that provides the product with effective 20 protection against the effect of light, but which is simpler to manufacture and less expensive than the corresponding containers currently available. To these ends, the invention proposes a container as 25 mentioned in the preamble, which is characterized in that it comprises a layer of thermoplastic filled homogenously with mica flakes to a level of 2 to 4% by weight with the addition of powdered titanium oxide to a level of 2 to 4% by weight. 30 According to a preferred embodiment of the invention, the container is made of a monolayer of filled plastics material forming the aforesaid layer, which leads to a simpler and less expensive process for manufacturing 35 the container. However, at least for certain applications, the invention does not set aside the embodiment that consists in the container being externally coated with a sleeve which hugs it tightly - 4 and is made of a filled thermoplastics material constituting the aforesaid layer. By virtue of the arrangements according to the 5 invention, a light-barrier effect is conferred, to a certain extent, by the mica pigments alone and, to a lesser extent, by the titanium oxide powder alone. By contrast, a particularly effective effect is afforded by the combination of the mica pigments and of the 10 titanium oxide powder. This light-barrier effect is particularly manifest for wavelengths shorter than about 550 nm, that is to say specifically for the radiation that plays the greatest part in the milk degradation process. 15 Because the light-barrier effect is afforded by all the micro flakes of mica which are dispersed within the thermoplastics material and form a physical barrier to the propagation of light, it is necessary for these 20 micro flakes to be present in sufficient number to be capable of forming a continuous barrier able to afford the desired effect. However, on the other hand, the presence of the micro 25 flakes of mica (which is a heat insulator) may impede the heating of the mass of thermoplastic material when said layer is being manufactured. Also, when the container is made of a monolayer, it is absolutely essential that it be possible for the preform to be 30 heated correctly prior to the blow-molding or stretch-blow-molding step, and it is also necessary for the fill of mica micro flakes to be present in a proportion that does not impede the correct progress of the blow-molding or stretch-blow-molding process during 35 manufacture of the container. Likewise, an excessive proportion of titanium oxide powder needs to be avoided because of the thickening of - 5 the heated plastic paste and the ensuing impediment this is in the manufacture of the container. A proportion not exceeding about 8% by weight, for the 5 two additives combined, seems to satisfactorily meet these contradictory requirements. Finally, both mica pigments and titanium oxide are products that it is desirable to introduce into the 10 thermoplastics material in only a minimum dose in order not to modify the mechanical properties of the container for its manufacture and its use. In order to meet this requirement while at the same time complying with the constraints mentioned above which are intended 15 not to disrupt the process of manufacturing the container, provision is preferably made for the mica to be present at a level of about 2 to 4% by weight and for the titanium oxide to be present at a level of about 2 to 4% by weight in respective proportions such 20 that the combination is restricted to about 4% by weight. Typically, the desired results can be obtained by making provision for the mica to be present at about 2% by weight and the titanium oxide at about 2% by weight. 25 More specifically, the light-barrier effect is optimised if the mica micro flakes are all arranged parallel to one another with partial overlap and parallel to the surface of the wall of the container 30 (arranged like roof tiles); it is thus possible to be sure that there are no straight paths through the thickness of the wall of the container along which light can reach the product contained in the container. 35 Particularly in the case of a monolayer container, the required positioning of the micro micro flakes is obtained, naturally, during the blow-molding or stretch-blow-molding process that the thermoplastics preform has to undergo in order to result in the final - 6 container with bi-oriented molecules: the double stretching (axial and radial) leading to biorientation at the same time causes the micro flakes to be orientated in the required roof tiles arrangement, 5 without there being any need to anticipate an additional treatment step in order to achieve this. The arrangements according to the invention find a preferred application in the manufacture of containers 10 in which the light-barrier layer is obtained from a thermoplastics material chosen from polyethylene terephthalate PET, polyethylene naphthalate PEN and high density polyethylene HDPE. 15 As already apparent from the foregoing explanations, the invention is aimed at the particularly beneficial, although nonexclusive and nonlimiting, application of milk bottles formed of a PET monolayer filled with mica flakes and titanium oxide powder to form a barrier to 20 the light, allowing milk to be kept for sufficient time, without deterioration to the taste of the milk. Typically, a bottle made of a PET monolayer filled with 2% by weight of mica and 2% by weight of titanium oxide allows long-life milk to be kept for longer than the 25 three months required by the legislation under average storage conditions. As is also apparent from the foregoing explanations, the invention is not, however, restricted to the field 30 of the preservation of milk or dairy products and may find application in the preservation of other light-sensitive products such as oils for example, especially olive oil, or alternatively beer.
Claims (7)
1. A container, such a bottle, flask, can or the like, intended to contain a product that needs to be 5 protected from the light, this container being made of a thermoplastic and manufactured by a blow-molding or stretch-blow-molding of a preform, characterized in that said container comprises a layer of thermoplastic filled homogenously with mica flakes 10 to a level of 2 to 4% by weight with the addition of powdered titanium oxide to a level of 2 to 4% by weight.
2. The container as claimed in claim 1, characterized 15 in that it consists of a monolayer of filled plastics material forming the aforesaid layer.
3. The container as claimed in claim 1, characterized in that it is externally coated with a sleeve which 20 grips it snugly and is made of a filled thermoplastic constituting the aforesaid layer.
4. The container as claimed in any one of claims 1 to 3, characterized in that the mica is present to a level 25 of about 2 to 4% by weight and the titanium oxide to a level of about 2 to 4% by weight in respective proportions such that the combination represents about 4% by weight. 30
5. The container as claimed in claim 4, characterized in that the mica is present at a level of about 2% by weight and the titanium oxide is present at a level of about 2% by weight. 35
6. The container as claimed in any one of claims 1 to 5, characterized in that the thermoplastic is chosen from polyethylene terephthalate PET, polyethylene naphthalate PEN and high density polyethylene HDPE. -8
7. A milk bottle, characterized in that it is formed as claimed in any one of claims 1 to 6.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0202956A FR2836893B1 (en) | 2002-03-08 | 2002-03-08 | THERMOPLASTIC CONTAINER FOR A PRODUCT TO BE PROTECTED FROM LIGHT |
FR02/02956 | 2002-03-08 | ||
PCT/FR2003/000717 WO2003076277A1 (en) | 2002-03-08 | 2003-03-06 | Container made from thermoplastic material for a product to be protected from light |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2003233364A1 true AU2003233364A1 (en) | 2003-09-22 |
Family
ID=27763660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2003233364A Abandoned AU2003233364A1 (en) | 2002-03-08 | 2003-03-06 | Container made from thermoplastic material for a product to be protected from light |
Country Status (14)
Country | Link |
---|---|
US (1) | US20040195141A1 (en) |
EP (1) | EP1483158B1 (en) |
JP (1) | JP2005523845A (en) |
KR (1) | KR20040079895A (en) |
CN (1) | CN1255303C (en) |
AU (1) | AU2003233364A1 (en) |
BR (1) | BR0306140A (en) |
CA (1) | CA2470461A1 (en) |
DE (1) | DE60328464D1 (en) |
ES (1) | ES2328917T3 (en) |
FR (1) | FR2836893B1 (en) |
MX (1) | MXPA04001789A (en) |
PT (1) | PT1483158E (en) |
WO (1) | WO2003076277A1 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2869019B1 (en) * | 2004-04-15 | 2007-11-30 | Tergal Fibres Sa | PACKAGING ARTICLES SUCH AS OPAQUE BOTTLES AND METHOD OF MANUFACTURING THE SAME |
ITMO20040354A1 (en) * | 2004-12-31 | 2005-03-31 | Granarolo S P A | PREFORM, METHOD TO PRODUCE A PREFORM AND CONTAINER. |
ES2303777B1 (en) * | 2005-04-14 | 2009-09-16 | Tergal Fibres | PACKAGING ITEMS SUCH AS OPACY BOTTLES AND MANUFACTURING PROCEDURE OF THESE ARTICLES. |
JP4454570B2 (en) * | 2005-11-21 | 2010-04-21 | 明治乳業株式会社 | Milky food and drink in transparent container and method for producing the same |
DE602008004241D1 (en) | 2008-07-28 | 2011-02-10 | Minera Catalano Aragonesa Samca Sa | Resin composition for food containers |
WO2011054838A2 (en) | 2009-11-03 | 2011-05-12 | Carlsberg Breweries A/S | Eliminating the generation of mbt in a hops based beverage |
WO2011054839A2 (en) | 2009-11-03 | 2011-05-12 | Carlsberg Breweries A/S | Preventing the generation of mbt in a hops based beverage |
ES2367512B2 (en) * | 2010-04-12 | 2012-08-02 | Sociedad Anonima Minera Catalano-Aragonesa | PROCEDURE FOR THE MANUFACTURE OF A COLORED PET CONTAINER. |
EP2684470A4 (en) | 2011-03-11 | 2014-12-10 | Meiji Co Ltd | Photodegradation-resistant beverage |
SI3023458T1 (en) | 2013-07-15 | 2018-11-30 | Sociedad Anonima Minera Catalano-Aragonesa | Opaque single-layer bottle with light protection and production method thereof |
CN103421282A (en) * | 2013-08-08 | 2013-12-04 | 中山色邦塑料色母有限公司 | Frosted PET packaging bottle additive and application thereof |
JP6735776B2 (en) | 2015-06-04 | 2020-08-05 | ザ ケマーズ カンパニー エフシー リミテッド ライアビリティ カンパニー | Light protection bottle design |
CN106084678A (en) * | 2016-07-04 | 2016-11-09 | 镇江恒达包装股份有限公司 | A kind of antistatic PET kettle and preparation method thereof |
CN107793634A (en) * | 2016-08-29 | 2018-03-13 | 合肥杰事杰新材料股份有限公司 | A kind of light PP alloys with high shading performance and preparation method thereof |
CA3044067A1 (en) * | 2016-12-13 | 2018-06-21 | The Chemours Company Fc, Llc | Rigid monolayer container |
CN110461730A (en) * | 2017-03-31 | 2019-11-15 | 科慕埃弗西有限公司 | Anti-light package part including monolayered vessel and single layer closure member |
CN112272642A (en) * | 2018-06-13 | 2021-01-26 | 科慕埃弗西有限公司 | Light-tight closure |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3845180A (en) * | 1972-04-24 | 1974-10-29 | Mearl Corp | Preparation of pearlescent plastics |
US3784661A (en) * | 1972-08-30 | 1974-01-08 | Celanese Corp | Process of blow molding containers from particle form polyethylene resins |
JPS60193630A (en) * | 1984-03-15 | 1985-10-02 | Sumika Color Kk | Hollowed molding made of thermoplastic polyester having light-shielding property |
JPH04367449A (en) * | 1991-01-19 | 1992-12-18 | Toyo Seikan Kaisha Ltd | Multilayer package |
JP3042796B2 (en) * | 1991-02-27 | 2000-05-22 | 大日本印刷株式会社 | Heat-resistant light-shielding barrier bottle |
JP2985677B2 (en) * | 1994-09-09 | 1999-12-06 | 東洋製罐株式会社 | Colored liquid packaging |
US5686515A (en) * | 1995-11-13 | 1997-11-11 | The M.A. Hanna Company | Colored polyethylene terephthalate composition and process of its manufacture |
JP3238624B2 (en) * | 1996-03-02 | 2001-12-17 | みのる化成株式会社 | Plastic double wall hollow panel for roof or side wall of temporary toilet |
JP2001088200A (en) * | 1999-09-21 | 2001-04-03 | Idemitsu Petrochem Co Ltd | Method for molding hollow molded article |
US6527133B1 (en) * | 2000-11-03 | 2003-03-04 | Portola Packaging, Inc. | Multiple label liquid container |
-
2002
- 2002-03-08 FR FR0202956A patent/FR2836893B1/en not_active Expired - Fee Related
-
2003
- 2003-03-06 KR KR10-2004-7002310A patent/KR20040079895A/en not_active Application Discontinuation
- 2003-03-06 CN CNB038012855A patent/CN1255303C/en not_active Expired - Fee Related
- 2003-03-06 PT PT03727572T patent/PT1483158E/en unknown
- 2003-03-06 MX MXPA04001789A patent/MXPA04001789A/en active IP Right Grant
- 2003-03-06 CA CA002470461A patent/CA2470461A1/en not_active Abandoned
- 2003-03-06 BR BR0306140-0A patent/BR0306140A/en not_active IP Right Cessation
- 2003-03-06 US US10/485,464 patent/US20040195141A1/en not_active Abandoned
- 2003-03-06 EP EP03727572A patent/EP1483158B1/en not_active Expired - Lifetime
- 2003-03-06 DE DE60328464T patent/DE60328464D1/en not_active Expired - Lifetime
- 2003-03-06 JP JP2003574510A patent/JP2005523845A/en active Pending
- 2003-03-06 ES ES03727572T patent/ES2328917T3/en not_active Expired - Lifetime
- 2003-03-06 AU AU2003233364A patent/AU2003233364A1/en not_active Abandoned
- 2003-03-06 WO PCT/FR2003/000717 patent/WO2003076277A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
DE60328464D1 (en) | 2009-09-03 |
EP1483158A1 (en) | 2004-12-08 |
EP1483158B1 (en) | 2009-07-22 |
WO2003076277A1 (en) | 2003-09-18 |
CA2470461A1 (en) | 2003-09-18 |
MXPA04001789A (en) | 2005-03-07 |
ES2328917T3 (en) | 2009-11-19 |
FR2836893B1 (en) | 2004-07-02 |
KR20040079895A (en) | 2004-09-16 |
FR2836893A1 (en) | 2003-09-12 |
PT1483158E (en) | 2009-10-23 |
CN1255303C (en) | 2006-05-10 |
BR0306140A (en) | 2004-10-19 |
CN1568272A (en) | 2005-01-19 |
US20040195141A1 (en) | 2004-10-07 |
JP2005523845A (en) | 2005-08-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK5 | Application lapsed section 142(2)(e) - patent request and compl. specification not accepted |