WO2000000545A1 - Biaxially oriented container of plastics material - Google Patents
Biaxially oriented container of plastics material Download PDFInfo
- Publication number
- WO2000000545A1 WO2000000545A1 PCT/SE1999/001089 SE9901089W WO0000545A1 WO 2000000545 A1 WO2000000545 A1 WO 2000000545A1 SE 9901089 W SE9901089 W SE 9901089W WO 0000545 A1 WO0000545 A1 WO 0000545A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymeric material
- monomer
- container
- container according
- copolymer
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 77
- 229920003023 plastic Polymers 0.000 title description 7
- 239000004033 plastic Substances 0.000 title description 7
- 230000004888 barrier function Effects 0.000 claims abstract description 31
- 229920001577 copolymer Polymers 0.000 claims abstract description 30
- 239000000178 monomer Substances 0.000 claims description 53
- 150000002825 nitriles Chemical class 0.000 claims description 30
- 150000001491 aromatic compounds Chemical class 0.000 claims description 17
- 125000000217 alkyl group Chemical group 0.000 claims description 16
- 125000004432 carbon atom Chemical group C* 0.000 claims description 16
- 239000001257 hydrogen Substances 0.000 claims description 16
- 229910052739 hydrogen Inorganic materials 0.000 claims description 16
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 15
- 238000000071 blow moulding Methods 0.000 claims description 14
- 150000001993 dienes Chemical class 0.000 claims description 14
- 229920000642 polymer Polymers 0.000 claims description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 10
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 10
- 229920001897 terpolymer Polymers 0.000 claims description 9
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 230000009477 glass transition Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002356 single layer Substances 0.000 claims description 2
- 229940048053 acrylate Drugs 0.000 claims 8
- 102100035861 Cytosolic 5'-nucleotidase 1A Human genes 0.000 claims 1
- 101000802744 Homo sapiens Cytosolic 5'-nucleotidase 1A Proteins 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 34
- 239000001301 oxygen Substances 0.000 abstract description 34
- 229910052760 oxygen Inorganic materials 0.000 abstract description 34
- 238000000034 method Methods 0.000 abstract description 15
- 235000011389 fruit/vegetable juice Nutrition 0.000 abstract description 6
- 235000013405 beer Nutrition 0.000 abstract description 5
- 229920003993 Barex® 210I Polymers 0.000 abstract 1
- 229920001824 Barex® Polymers 0.000 description 23
- 229920000139 polyethylene terephthalate Polymers 0.000 description 19
- 239000005020 polyethylene terephthalate Substances 0.000 description 19
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 10
- 239000011112 polyethylene naphthalate Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 8
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 238000004806 packaging method and process Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 235000013361 beverage Nutrition 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000010103 injection stretch blow moulding Methods 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010102 injection blow moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229960003903 oxygen Drugs 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
- B29C2049/7879—Stretching, e.g. stretch rod
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/0811—Wall thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3008—Preforms or parisons made of several components at neck portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3012—Preforms or parisons made of several components at flange portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3016—Preforms or parisons made of several components at body portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/302—Preforms or parisons made of several components at bottom portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
- B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
- B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
- B29C2949/3028—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
- B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
- B29C2949/3028—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components
- B29C2949/303—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components having more than three components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3032—Preforms or parisons made of several components having components being injected
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3032—Preforms or parisons made of several components having components being injected
- B29C2949/3034—Preforms or parisons made of several components having components being injected having two or more components being injected
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3032—Preforms or parisons made of several components having components being injected
- B29C2949/3034—Preforms or parisons made of several components having components being injected having two or more components being injected
- B29C2949/3036—Preforms or parisons made of several components having components being injected having two or more components being injected having three or more components being injected
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3032—Preforms or parisons made of several components having components being injected
- B29C2949/3034—Preforms or parisons made of several components having components being injected having two or more components being injected
- B29C2949/3036—Preforms or parisons made of several components having components being injected having two or more components being injected having three or more components being injected
- B29C2949/3038—Preforms or parisons made of several components having components being injected having two or more components being injected having three or more components being injected having more than three components being injected
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/087—Means for providing controlled or limited stretch ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/42394—Providing specific wall thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
- B29K2033/18—Polymers of nitriles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
Definitions
- the present invention relates in general to the technique of blow moulding biaxially oriented containers of plastics material, and in particular to a container having excellent oxygen barrier properties and thus being suitable for packaging of beer, juice or other beverages and liquids sensitive to oxygen.
- PEN polyethylene naphthalate
- the oxygen barrier of PEN is about five times better than that of PET, but at the same time PEN is about five times more expensive than PET. This means that PEN is not a realistic alternative since the market is not willing to pay the price for the enhanced oxygen barrier.
- HNRs High Nitrile Resins
- a major supplier of HNRs is the British company BP Chemicals Ltd which is marketing a commercial HNR under their trademark
- BAREX which is a modified acrylonitrile-methyl acrylate copolymer.
- this pamphlet injection stretch blow moulding of Barex 2101 is discussed, a stretch ratio of 4:1 being indicat- ed as appropriate.
- the supplier of this material recommends this stretch ratio for obtaining a suitable orientation of the material and thereby the aimed-at oxy- gen barrier.
- the side wall of the blow moulded container should have a wall thickness that is four times less than the wall thickness of the preform body.
- Barex 2101 is believed to be about seven times better than that of PET, while the price is only about the double .
- BAREX materials have an oxygen transmission rate of 0.15-0.8 cm 3 .mm/m 2 .24h.bar, measured in accordance with ASTM standards, which should be compared with the corresponding rate for PET which is
- polymer comprises polymers as well as less polymerised variants thereof, the latter being considered as oligomers or prepolymers thereof.
- copolymer as used herein comprises copolymers, graft copolymers as well as higher polymers, such as terpolymers .
- the preform is formed from polymeric material comprising a modified nitrile-acrylate copolymer as defined in appended claim 1.
- the preform is formed from polymeric material comprising a modified nitrile-acrylate copolymer as defined in appended claim 1.
- ® consists of Barex 2101 which in the blow moulding step is stretched into a container following a stretch ratio of about 12:1. In its unoriented state, this material has a oxygen transmission rate of 0.3 cm 3 .mm/m 2 .24h. bar, and by stretching the material 12 : 1 this rate is below 0.016 cm 3 .mm/m 2 .24h.bar . Thus, the oxygen barrier is increased at least in the magnitude of about twenty times .
- the preform is formed from polymeric material comprising a modified copolymer of a nitrile monomer and an aromatic compound as defined in appended claim 6. If this preform is blow moulded and stretched in the way discussed with respect to the first aspect above, a significant increase of the oxygen barrier is achieved. In preferred embodiments, substantially the same oxygen barrier is achieved by blow moulding a preform of the second aspect of the invention as in the first aspect.
- the general inventive concept is based on the idea that a preform comprising a suitable HNR material should be blow moulded in such a way that the wall thickness of the side wall of the finished blow moulded container is 6-20 less than the wall thickness of the preform body.
- the PET is crystallised (as is describ- ed in EP-A-521 841 mentioned by way of introduction)
- HNR is amorphous throughout this process.
- it is advantageous that the material is maintained amorphous since the finished container will then always be transparent .
- Containers of PET and the like having crystallised wall and/or bottom portions are sometimes somewhat opaque which may be an undesired pro- perty.
- the first aspect of the present invention relates to a biaxially oriented container blow moulded from a preform of polymeric material, wherein the container side wall has a wall thickness which is 6-20 times less than the wall thickness of the preform body, the polymeric material comprising a modified nitrile-acrylate copolymer.
- the polymeric material comprises a copolymer of a nitrile monomer and an acrylate monomer having the general formula I and II, respectively:
- R is hydrogen or an alkyl group having from 1 to 4 carbon atoms ;
- R x is hydrogen or an alkyl group having from 1 to 4 carbon atoms ;
- the polymeric material comprises a first component being a copolymer of the nitrile monomer I and the acrylate monomer II admixed or polymerised with a second component selected from the group consisting of a monomer, a polymer and a copolymer.
- the polymeric material comprises a copolymer of the nitrile monomer I and the acrylate monomer II admixed with a rubber selected from the group consisting of: i ) a polymer of a diene monomer having the general formula III :
- R 3 is hydrogen or an alkyl group having from 1 to 4 carbon atoms ; ii ) a polymer of an aromatic compound having the general formula IV:
- R 4 is hydrogen or an alkyl group having from 1 to 4 car- bon atoms; iii ) a copolymer of the nitrile monomer I and the diene monomer III; iv) a copolymer of the nitrile monomer I and the aromatic compound IV; v) a copolymer of the diene monomer III and the aromatic compound IV .
- the polymeric material comprises a terpolymer of the nitrile monomer I, the acrylate monomer II and a monomer selected from the group consisting of: i ) the diene monomer III, or a polymer thereof; ii ) the aromatic compound IV, or a polymer thereof;
- the second aspect of the present invention relates to a biaxially oriented container blow moulded from a preform of polymeric material, wherein the container side wall has a wall thickness which is 6-20 times less than the wall thickness of the preform body, the polymeric material comprising a modified copolymer of a nitrile monomer and an aromatic compound having the general formula I and IV, respectively:
- R is hydrogen or an alkyl group having from 1 to 4 carbon atoms
- R 4 is hydrogen or an alkyl group having from 1 to 4 carbon atoms .
- the polymeric material comprises a terpolymer of the nitrile monomer I, the aromatic compound IV and a diene monomer having the general formula III:
- R 3 is hydrogen or an alkyl group having from 1 to 4 carbon atoms .
- R is preferably H in the nitrile monomer I .
- R x is preferably H in the acrylate monomer II in the first aspect.
- R 2 is preferably a methyl group in the first aspect.
- R 4 is preferably H in the aromatic compound IV.
- R 3 is either H or a methyl group in the diene monomer III.
- the polymeric material comprises a terpolymer of acrylonitrile, methyl acrylate and butadiene.
- the polymeric material comprises a terpolymer of acrylonitrile, styrene and butadiene.
- the preform is of the general type shown in appli- cant's EP-A-521 841.
- the preform comprises a tubular body having a closed hemispherical end and one open end defining a mouth portion having outer threads for engagement with corresponding inner threads of a closure cap.
- the tubular preform body has a cylindrical portion between the mouth portion and the closed end portion. This cylindrical portion defines the side wall of the preform, and in the blow moulding step this preform side wall is transformed to an expanded cylindrical body defining the side wall of the container.
- the container to be produced is a transparent bottle for juice or beer having a volume of 0.5 litre.
- the weight of the Barex preform is 47g which should be compared with corresponding known preforms of PET and
- PEN which have a weight of 54g. Since the Barex material has a lower density (1.11 kg/m 3 ) than PET and PEN (1.33 kg/m 3 ) , a lighter preform can be used, which makes it possible to reduce the material costs.
- the cylindrical body portion of the Barex preform has a wall thickness of about 3.6 mm, and the wall thickness of the side wall of the finished container should be about 0.3 mm, taking into account strength requirements placed on the container.
- the container in this example is of the disposable type and blow moulded basically in accordance with a known single-stage process, for instance, of the type described in the introductory portion of the before-mentioned document WO 97/32711.
- the Barex preform is first heated to a temperature of about 180°-200°C, then cooled to a temperature of about 100°C, and finally transferred to a blow mould in which it is blow moulded into the container in a manner known per se using a so-called stretching rod.
- the blow mould cavity has an inner shape corresponding to the outer shape of the finished container.
- the material is stretched and biaxially oriented in such a way that the wall thickness of the container side wall is about 12 times less than the wall thickness of the cylindrical portion of the preform. By this excessive orientation, the container obtains excellent oxygen barrier properties.
- the oxygen barrier of the finished container is tested in oxygen transmission rate measuring equip- ment referred to as "OX-TRAN 2/20", which is marketed by the US company Modern Controls, Inc. and which is well known to people skilled in the art. This test shows that the container has an oxygen transmission rate below 0.016 cm 3 .mm/m 2 .24h.bar, which is extremely good. This rate may be compared with the correspond-
- the oxygen barrier is improved at least in the magnitude of about twenty times .
- the oxygen transmission rate is also significantly im- proved (lowered) over oriented Barex ® 2101 which accord- ing to details given in the BP Chemicals pamphlets has a rate of 0.15 cm 3 .mm/m 2 .24h.bar .
- the oxygen barrier is improved at least in the magnitude of ten times.
- the oxygen barrier may be even better than described herein since the OX-TRAN equipment can hardly measure such low rates.
- the amount of nitrile in the polymeric material is also believed to be a parameter of interest when it comes to obtaining low oxygen transmission rates.
- the tests have shown that this amount of nitrile, as calculated from nitrile monomer (s) used, should be about 60-80% by weight, preferably about 70% by weight.
- This temperature (Tg) should be about 70-90°C, preferably about 75-85°C, and more preferably about 82 °C.
- the container may be either of the monolayer type consisting of said polymeric material, or of the multilayer type in which said polymeric material is a barrier layer included in the multilayer structure.
- a multilayer container may have a side wall comprising a central core or barrier layer of said polymeric material and layers of another thermoplastic material, such as PET, on each side of the barrier layer. Further, there may be so-called tie layers between the barrier layer and the two PET layers.
- said polymeric material comprises a terpolymer of acrylonitrile, methyl acrylate and butadiene.
- methyl acrylate may be replaced by styrene .
- the inventive concept is applicable to both injection blow moulding processes and injection stretch blow moulding processes, as is appreciated by the skilled person. Further, it should be emphasised that the inventive concept is applicable to both disposable one-way containers and reusable or returnable containers. Of course, this includes modern refillable containers for various liquids.
- the blow moulding process in which the invention is practised may be either of the so-called single-stage type, that is forming of the preform and the container "in line", or of the so-called two-stage type in which the preform is first injection moulded and then stored before the blow moulding step. These two processes are well known to the skilled person and described in WO 97/32711 mentioned in the introductory portion of this description.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU49414/99A AU4941499A (en) | 1998-06-29 | 1999-06-17 | Biaxially oriented container of plastics material |
EP99933347A EP1093491A1 (en) | 1998-06-29 | 1999-06-17 | Biaxially oriented container of plastics material |
PL99345029A PL345029A1 (en) | 1998-06-29 | 1999-06-17 | Biaxially oriented container of plastics material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9802313A SE9802313D0 (en) | 1998-06-29 | 1998-06-29 | Biaxially oriented container of plastic material |
SE9802313-8 | 1998-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000000545A1 true WO2000000545A1 (en) | 2000-01-06 |
Family
ID=20411884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1999/001089 WO2000000545A1 (en) | 1998-06-29 | 1999-06-17 | Biaxially oriented container of plastics material |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1093491A1 (en) |
AU (1) | AU4941499A (en) |
CZ (1) | CZ20004917A3 (en) |
PL (1) | PL345029A1 (en) |
SE (1) | SE9802313D0 (en) |
WO (1) | WO2000000545A1 (en) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3755277A (en) * | 1971-01-14 | 1973-08-28 | Phillips Petroleum Co | Oriented hollow articles from styrene-acrylonitrile polymer |
US3933417A (en) * | 1971-06-01 | 1976-01-20 | Monsanto Company | Apparatus for forming multiaxially oriented containers |
US3984498A (en) * | 1972-04-28 | 1976-10-05 | American Can Company | Blown thermoplastic bottle and method for making same |
US4128383A (en) * | 1976-05-24 | 1978-12-05 | The Standard Oil Company | Apparatus for controlling plastic material distribution in manufacture of biaxially oriented plastic containers |
US4131666A (en) * | 1977-10-25 | 1978-12-26 | Monsanto Company | Forming molecularly oriented containers from reheated preforms |
EP0052259A1 (en) * | 1980-10-27 | 1982-05-26 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | High nitrile resin and process for preparing the same |
JPS61206623A (en) * | 1985-03-12 | 1986-09-12 | Mitsui Toatsu Chem Inc | Manufacture of multilayer container |
JPS62235040A (en) * | 1986-03-31 | 1987-10-15 | 三井東圧化学株式会社 | Citrus-fruit juice vessel |
US4980211A (en) * | 1979-11-30 | 1990-12-25 | Yoshino Kogyosho Co., Ltd. | Article of polyethylene terephthalate resin |
SE468381B (en) * | 1983-04-28 | 1993-01-11 | Toyo Seikan Kaisha Ltd | MULTI-LAYER STRAIGHT POLYESTER BOTTLE AND PROCEDURES FOR PRODUCING THEREOF |
-
1998
- 1998-06-29 SE SE9802313A patent/SE9802313D0/en unknown
-
1999
- 1999-06-17 WO PCT/SE1999/001089 patent/WO2000000545A1/en not_active Application Discontinuation
- 1999-06-17 AU AU49414/99A patent/AU4941499A/en not_active Abandoned
- 1999-06-17 PL PL99345029A patent/PL345029A1/en not_active IP Right Cessation
- 1999-06-17 CZ CZ20004917A patent/CZ20004917A3/en unknown
- 1999-06-17 EP EP99933347A patent/EP1093491A1/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3755277A (en) * | 1971-01-14 | 1973-08-28 | Phillips Petroleum Co | Oriented hollow articles from styrene-acrylonitrile polymer |
US3933417A (en) * | 1971-06-01 | 1976-01-20 | Monsanto Company | Apparatus for forming multiaxially oriented containers |
US3984498A (en) * | 1972-04-28 | 1976-10-05 | American Can Company | Blown thermoplastic bottle and method for making same |
US4128383A (en) * | 1976-05-24 | 1978-12-05 | The Standard Oil Company | Apparatus for controlling plastic material distribution in manufacture of biaxially oriented plastic containers |
US4131666A (en) * | 1977-10-25 | 1978-12-26 | Monsanto Company | Forming molecularly oriented containers from reheated preforms |
US4980211A (en) * | 1979-11-30 | 1990-12-25 | Yoshino Kogyosho Co., Ltd. | Article of polyethylene terephthalate resin |
EP0052259A1 (en) * | 1980-10-27 | 1982-05-26 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | High nitrile resin and process for preparing the same |
SE468381B (en) * | 1983-04-28 | 1993-01-11 | Toyo Seikan Kaisha Ltd | MULTI-LAYER STRAIGHT POLYESTER BOTTLE AND PROCEDURES FOR PRODUCING THEREOF |
JPS61206623A (en) * | 1985-03-12 | 1986-09-12 | Mitsui Toatsu Chem Inc | Manufacture of multilayer container |
JPS62235040A (en) * | 1986-03-31 | 1987-10-15 | 三井東圧化学株式会社 | Citrus-fruit juice vessel |
Non-Patent Citations (3)
Title |
---|
DATABASE WPI Week 198643, Derwent World Patents Index; AN 1986-282243, XP002938201, "Multilayer Container Prodn. - Involves Covering surface of Thermoplastic Resin Parison with Acrylonictrile Heat Schrinking Film" * |
DATABASE WPI Week 198747, Derwent World Patents Index; AN 1987-330487, XP002940101, "Container for Citrous Fruit Juice - Comprises Resin Obtd. by Copolymerisingunsatd. Nitrile with Rubber Copolymer" * |
DAVID L.G. LAINCHBURY: "High Nitrile Resins for Barrier Packaging", ENGINEERING PLASTICS,, vol. 4, no. 1, 1991, pages 39 - 49, XP000219324 * |
Also Published As
Publication number | Publication date |
---|---|
EP1093491A1 (en) | 2001-04-25 |
AU4941499A (en) | 2000-01-17 |
PL345029A1 (en) | 2001-11-19 |
SE9802313D0 (en) | 1998-06-29 |
CZ20004917A3 (en) | 2001-10-17 |
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