WO2001034479A1 - Multi-trip polyester containers with oxygen scavenging material - Google Patents
Multi-trip polyester containers with oxygen scavenging material Download PDFInfo
- Publication number
- WO2001034479A1 WO2001034479A1 PCT/GB2000/004253 GB0004253W WO0134479A1 WO 2001034479 A1 WO2001034479 A1 WO 2001034479A1 GB 0004253 W GB0004253 W GB 0004253W WO 0134479 A1 WO0134479 A1 WO 0134479A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyester
- preform
- layers
- container
- wall portion
- Prior art date
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
- 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
Definitions
- This invention relates to polyester containers, and particularly multilayer containers such as bottles for oxygen sensitive products such as beers and fruit juices etc .
- Oxygen scavenging materials are known, such as those described m WO89/01012, m which a transition metal promotes the oxidation of an oxidisable polymer.
- O89/01012 gives as an example polyamide materials being oxidised by means of cobalt Siccatol (TM Akzo Chemie) .
- Multilayer structures are envisaged as potential embodiments .
- the total thickness of the PET layers is 0.27875mm and the oxygen scavenging (MXD6 + CO) layers is 0.015mm.
- MXD6 + CO oxygen scavenging
- a polyester bottle comprising a neck portion, a side-wall portion, a shoulder portion interconnecting the neck and side-wall portions, and a base portion, the bottle consisting of three or more polymeric layers, at least the inner and outermost layers being formed of polyester, and one or more intermediate layers comprising an oxygen scavenging material, the total thickness of the polyester layers m the side-wall portion being at least 0.4mm, and the total thickness of the one or more intermediate layers m the side-wall portion being at least 0.02mm, the thickness of the polyester and intermediate layers being so as to provide a multi-trip polyester bottle.
- the total thickness of the one or more intermediate layers m the side-wall portion is at least 0.025mm, and the total thickness of the polyester layers m the side-wall portion is at least 0.5mm.
- refillable multi-trip bottles are known per-se (as exemplified by EP0247566B)
- none of the prior art on bottles with oxygen scavenging materials envisages anything other than single trip bottles. Applicants believe they are the first to appreciate that oxygen scavenging materials can be used to design a multi-trip bottle and to design the bottle accordingly.
- the oxygen scavenging material conveniently comprises an oxidisable organic polymer and a transition metal m a positive oxidation state.
- the oxidisable organic polymer is conveniently a polyamide, preferably a polymer containing units of the formula -NH-CH 2 -arylene- CH 2 -NH-CO-alkylene-CO- .
- the polyester is preferably polyethylene terephthalate .
- the bottle has three polymeric layers, an outermost layer of polyester, an innermost layer of polyester, and an intermediate layer comprising an oxidisable organic polymer and a transition metal m a positive oxidation state.
- the total thickness of the one or more intermediate layers preferably comprises approximately 5% of the total thickness of the side-wall portion.
- the invention further resides in a preform for a polyester container, the preform comprising a neck portion, a side-wall portion to be drawn, and a closed bottom portion, the preform including three or more polymeric layers, at least the inner and outermost layers being formed of polyester, and one or more intermediate layers comprising an oxygen scavenging polymer, the total thickness of the polyester layers in the side-wall portion being at least 5mm, and the total thickness of the one or more intermediate layers in the side-wall portion being at least 0.3mm, the preform being suitable for the manufacture of a multi-trip polyester container.
- the total thickness of the one or more intermediate layers in the side-wall portion of the preform is preferably at least 0.35mm, and the total thickness of the polyester layers m the side-wall portion is at least 6mm, preferably at least 7mm.
- the oxygen scavenging material conveniently comprises an oxidisable organic polymer and a transition metal m a positive oxidation state.
- the oxidisable organic polymer is conveniently a polyamide preferably a polymer containing units of the formula -NH-CH 2 -arylene- CH 2 -NH-CO-alkylene-CO-
- the polyester is preferably polyethylene terephthalate .
- the preform preferably comprises three polymeric layers, an outermost layer of polyester, an innermost layer of polyester and an intermediate layer comprising an oxidisable organic polymer and a transition metal in a positive oxidation state.
- the total thickness of the one or more intermediate layers of the preform preferably comprises approximately 5% of the total thickness of the side-wall portion .
- the oxidisable organic polymer may be selected from a variety of polymers. Examples include ethylenically unsaturated hydrocarbons (for example as described in EP0507207A) , polyolefins such as polypropylene and low density, medium density and high density polyethylene (e.g EP0451762A) , ethylene vinyl copolymers such as EVOH (e.g US5281360), amines (e.g EP0542512), ascorbic acid (e.g WO91/17044), olefm- diene copolymers (e.g EP0713899A) , and aliphatic polyketones (e.g W09813266) .
- polymers include ethylenically unsaturated hydrocarbons (for example as described in EP0507207A) , polyolefins such as polypropylene and low density, medium density and high density polyethylene (e.g EP0451762A) , ethylene vinyl copolymers such
- the invention further resides in a method of providing a multi-trip polyester container comprising the steps of :
- a multi- layer preform comprising three or more polymeric layers, including at least one layer comprising an oxygen scavenging material , ii ) stretch blow moulding the preform to form a blow moulded container body, whereby the container is capable of at least five re-use cycles, each including subjecting the container to a hot caustic wash at a temperature of at least 60°C (140°F) followed by product filling and capping, the container exhibiting substantially no crack failure following the five re-use cycles and dimensional stability to the extent that the maximum volume deviation over the five re-use cycles is a maximum of
- the invention further resides in a method of providing a multi-trip polyester container comprising the steps of : l) providing a multi- layer preform comprising three or more polymeric layers, including at least one layer comprising an oxygen scavenging material, 11) stretch blow moulding the preform to form a blow moulded container body, m) filling the container body with product and capping the container, iv) reusing the container by subjecting it to a caustic hot wash at a temperature of at least 60°C (140°F) , followed by further filling and capping, and v) repeating step (iv) to provide at least a five use multi-trip bottle.
- the invention further resides m a method of providing a multi-trip polyester container comprising the steps of : I) providing a multilayer preform comprising three or more polymeric layers, including at least one layer comprising an oxygen scavenging material , ii) stretch blow-mouldmg the preform to form a multilayer blow moulded container body, the oxidisable organic polymer, the transition metal and the respective amounts thereof being selected such that the layer will scavenge oxygen during a period of oxygen scavenging, the arrangement being such that the wall of the container body has a permeance to oxygen of not more than 0.5 cm 3 / (m 2 atm day), m) filling the container body with product and capping the container, IV) reusing the container by subjecting it to a caustic hot wash at a temperature of at least 60°C (140°) , followed by further filling and capping, and v) repeating step (iv) to provide at least a five use multi-trip container, the period of
- This marker means may be a relatively simple mechanism such as a date or batch code added to the container, or alternatively a more sophisticated mechanism such as an indicator adapted to change its visible appearance following a predetermined a time period after manufacture, or once the bottle has been exposed to a predetermined quantity of oxygen. Conceivably the colour of a marker, or of a layer of the container, conceivably the oxygen scavenging layer, could change under one or both of these conditions.
- a polyester bottle comprising a neck portion, a side-wall portion, a shoulder portion interconnecting the neck and side-wall portions, and a base portion, the bottle consisting of three or more polymeric layers, at least the inner and outermost layers being formed of polyester, and one or more intermediate layers comprising an oxygen scavenging material such that the layer will scavenge oxygen during a predetermined period of oxygen scavenging, the bottle including marker means adapted to indicate when the predetermined period of oxygen scavenging is close to expiry.
- bottles can be accepted or rejected for reuse based on their estimated future oxygen barrier performance, regardless of the number of trips they have made or the age of the bottles. This allows the maximum acceptable usage of each bottle, whilst ensuring that certain minimum oxygen barrier capabilities are always met .
- Fig .1 is a schematic sectional view of a polyester preform m accordance with the present invention.
- Fig.2 is a schematic sectional view of a polyester bottle made from the preform of Fig .1 and in accordance with the present invention.
- a polyester preform is shown generally at 1 and comprises a neck portion 2, a shoulder portion 3, a side-wall portion 4 and a base portion 5.
- the preform is formed mostly of polyethylene terephthalate, but is manufactured on a co- injection moulding machine such that there is an intermediate layer 6 of barrier material within the preform.
- the layer 6 does not extend substantially into the neck portion 2, and is discontinuous m the base portion 5.
- the intermediate layer 6 divides the side-wall portion 4 into three layers, an outermost layer 7 of PET, the intermediate layer 6, and an innermost layer 8 again of PET.
- the innermost layer 8 is "innermost” m the sense that it is towards the inner wall of the preform, as opposed to being towards the middle of the wall .
- the outermost layer 7 of PET has a thickness of approx. 3.325mm, as does the innermost layer 8.
- the intermediate layer 6 has a thickness of approx. 0.35mm, and is formed of MXD6 polyamide (as sold by Mitsubishi Gas Chemicals of Japan) to which has been added 200 ppm cobalt neodecanoate.
- the total thickness of the side-wall portion 4 is approx. 7mm.
- the preform 1 is then transferred to a stretch blow moulding machine and formed into the bottle of Fig.2.
- the bottle is shown generally at 9 and comprises the neck portion 2 (which is substantially unchanged) , a shoulder portion 3 ' formed from the shoulder portion 3 of the preform, a side-wall portion 4 ' formed from the side-wall portion 4 of the preform, and a base portion 5 ' formed from the base portion 5 of the preform 1.
- an outermost PET layer 7' has a thickness of 0.2375mm, as does an innermost layer 8 ' , with an intermediate layer 6 ' having a thickness of 0.025mm.
- the total thickness of the side-wall portion 4' is 0.5mm.
- the bottle 9 is capable of at least 5 trips, each trip consisting of filling and capping, sale of the filled bottle and return of the empty bottle, and a caustic hot wash conventional m the reuse of multi -trip bottles.
- the intermediate layer 6' scavenges oxygen such that the bottle 9 has excellent oxygen barrier properties for a period m excess of 100 weeks.
- a marker patch (not shown) is present, for example on the underside of the base 5', to indicate when the 100 week period has been exceeded. In this way bottles nearmg the end of their useful life may be removed from the refilling stream before the oxygen barrier performance is seriously affected.
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Polyesters Or Polycarbonates (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Packages (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60030581T DE60030581D1 (en) | 1999-11-11 | 2000-11-06 | A POLYESTER CONTAINING OXYGEN ABSORBENT MATERIAL AND REUSABLE CONTAINER |
EP00973065A EP1235716B1 (en) | 1999-11-11 | 2000-11-06 | Multi-trip polyester containers with oxygen scavenging material |
AU11620/01A AU1162001A (en) | 1999-11-11 | 2000-11-06 | Multi-trip polyester containers with oxygen scavenging material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9926601.7A GB9926601D0 (en) | 1999-11-11 | 1999-11-11 | Polyester containers |
GB9926601.7 | 1999-11-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001034479A1 true WO2001034479A1 (en) | 2001-05-17 |
Family
ID=10864274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2000/004253 WO2001034479A1 (en) | 1999-11-11 | 2000-11-06 | Multi-trip polyester containers with oxygen scavenging material |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1235716B1 (en) |
AT (1) | ATE338691T1 (en) |
AU (1) | AU1162001A (en) |
DE (1) | DE60030581D1 (en) |
GB (1) | GB9926601D0 (en) |
WO (1) | WO2001034479A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1498355A1 (en) * | 2002-01-29 | 2005-01-19 | Yoshino Kogyosho Co., Ltd. | Biaxially oriented blow-molded bottles and preform thereof |
EP1681239A1 (en) * | 2004-12-31 | 2006-07-19 | Granarolo S.P.A. | Preform, method for producing a preform and a container |
WO2010096430A2 (en) | 2009-02-18 | 2010-08-26 | Invista Technologies S.A. R.L. | Polyester composition and bottle for carbonated pasteurized products |
JP2019064025A (en) * | 2017-09-28 | 2019-04-25 | 大日本印刷株式会社 | Multilayer preform and multilayer container |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989001012A1 (en) | 1987-07-27 | 1989-02-09 | Mb Group Plc | Improvements in and relating to packaging |
EP0451762A2 (en) | 1990-04-10 | 1991-10-16 | Toppan Printing Co., Ltd. | Polyolefinic composition having oxygen barrier property, as well as sheet and container made of said composition |
WO1991017044A1 (en) | 1990-05-02 | 1991-11-14 | Zapata Industries, Inc. | Polymer compositions containing oxygen scavenging compounds |
EP0507207A2 (en) | 1991-04-02 | 1992-10-07 | W.R. Grace & Co.-Conn. | Compositions, articles and methods for scavenging oxygen |
EP0247566B1 (en) | 1986-05-30 | 1993-03-24 | Continental Pet Technologies, Inc. | Refillable polyester beverage bottle |
EP0542512A1 (en) | 1991-11-15 | 1993-05-19 | Mitsubishi Gas Chemical Company, Inc. | Oxygen-scavenging composition |
US5281360A (en) | 1990-01-31 | 1994-01-25 | American National Can Company | Barrier composition and articles made therefrom |
EP0713899A2 (en) | 1994-10-19 | 1996-05-29 | W.R. Grace & Co.-Conn. | Oxygen scavenging composition |
WO1998012127A1 (en) * | 1996-09-23 | 1998-03-26 | Amoco Corporation | Zero oxygen permeation plastic bottle for beer and other applications |
WO1998013266A1 (en) | 1996-09-25 | 1998-04-02 | Continental Pet Technologies, Inc. | Transparent oxygen-scavenging article including biaxially-oriented polyester |
WO1999038914A2 (en) * | 1998-02-03 | 1999-08-05 | Continental Pet Technologies, Inc. | Enhanced oxygen-scavenging polymers, and packaging made therefrom |
-
1999
- 1999-11-11 GB GBGB9926601.7A patent/GB9926601D0/en not_active Ceased
-
2000
- 2000-11-06 AT AT00973065T patent/ATE338691T1/en not_active IP Right Cessation
- 2000-11-06 WO PCT/GB2000/004253 patent/WO2001034479A1/en active IP Right Grant
- 2000-11-06 AU AU11620/01A patent/AU1162001A/en not_active Abandoned
- 2000-11-06 EP EP00973065A patent/EP1235716B1/en not_active Expired - Lifetime
- 2000-11-06 DE DE60030581T patent/DE60030581D1/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0247566B1 (en) | 1986-05-30 | 1993-03-24 | Continental Pet Technologies, Inc. | Refillable polyester beverage bottle |
WO1989001012A1 (en) | 1987-07-27 | 1989-02-09 | Mb Group Plc | Improvements in and relating to packaging |
US5281360A (en) | 1990-01-31 | 1994-01-25 | American National Can Company | Barrier composition and articles made therefrom |
EP0451762A2 (en) | 1990-04-10 | 1991-10-16 | Toppan Printing Co., Ltd. | Polyolefinic composition having oxygen barrier property, as well as sheet and container made of said composition |
WO1991017044A1 (en) | 1990-05-02 | 1991-11-14 | Zapata Industries, Inc. | Polymer compositions containing oxygen scavenging compounds |
EP0507207A2 (en) | 1991-04-02 | 1992-10-07 | W.R. Grace & Co.-Conn. | Compositions, articles and methods for scavenging oxygen |
EP0542512A1 (en) | 1991-11-15 | 1993-05-19 | Mitsubishi Gas Chemical Company, Inc. | Oxygen-scavenging composition |
EP0713899A2 (en) | 1994-10-19 | 1996-05-29 | W.R. Grace & Co.-Conn. | Oxygen scavenging composition |
WO1998012127A1 (en) * | 1996-09-23 | 1998-03-26 | Amoco Corporation | Zero oxygen permeation plastic bottle for beer and other applications |
WO1998013266A1 (en) | 1996-09-25 | 1998-04-02 | Continental Pet Technologies, Inc. | Transparent oxygen-scavenging article including biaxially-oriented polyester |
WO1999038914A2 (en) * | 1998-02-03 | 1999-08-05 | Continental Pet Technologies, Inc. | Enhanced oxygen-scavenging polymers, and packaging made therefrom |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1498355A1 (en) * | 2002-01-29 | 2005-01-19 | Yoshino Kogyosho Co., Ltd. | Biaxially oriented blow-molded bottles and preform thereof |
EP1498355A4 (en) * | 2002-01-29 | 2006-05-10 | Yoshino Kogyosho Co Ltd | Biaxially oriented blow-molded bottles and preform thereof |
EP1829786A1 (en) * | 2002-01-29 | 2007-09-05 | Yoshino Kogyosho Co., Ltd. | Biaxially drawn, blow-molded bottle and its preform |
AU2003208053B2 (en) * | 2002-01-29 | 2010-04-08 | Yoshino Kogyosho Co., Ltd. | Biaxially oriented blow-molded bottles and preform thereof |
US7976918B2 (en) | 2002-01-29 | 2011-07-12 | Yoshino Kogyosho Co., Ltd. | Biaxially drawn, blow-molded bottle and its preform |
AU2009200632B2 (en) * | 2002-01-29 | 2012-05-17 | Yoshino Kogyosho Co., Ltd | Biaxially drawn, blow-molded bottle and its preform |
US8800794B2 (en) | 2002-01-29 | 2014-08-12 | Yoshino Kogyosho Co., Ltd. | Biaxially drawn, blow-molded bottle and its preform |
EP1681239A1 (en) * | 2004-12-31 | 2006-07-19 | Granarolo S.P.A. | Preform, method for producing a preform and a container |
WO2010096430A2 (en) | 2009-02-18 | 2010-08-26 | Invista Technologies S.A. R.L. | Polyester composition and bottle for carbonated pasteurized products |
EP2398712A2 (en) * | 2009-02-18 | 2011-12-28 | INVISTA Technologies S.à.r.l. | Polyester composition and bottle for carbonated pasteurized products |
EP2398712A4 (en) * | 2009-02-18 | 2015-04-15 | Invista Technologies Srl | Polyester composition and bottle for carbonated pasteurized products |
JP2019064025A (en) * | 2017-09-28 | 2019-04-25 | 大日本印刷株式会社 | Multilayer preform and multilayer container |
Also Published As
Publication number | Publication date |
---|---|
EP1235716A1 (en) | 2002-09-04 |
ATE338691T1 (en) | 2006-09-15 |
DE60030581D1 (en) | 2006-10-19 |
AU1162001A (en) | 2001-06-06 |
EP1235716B1 (en) | 2006-09-06 |
GB9926601D0 (en) | 2000-01-12 |
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