公开(公告)号：US5239016A

公开(公告)日：1993-08-24

申请号：US438441

申请日：1990-01-16

Applicant: Michael A. Cochran ,  Rickworth Folland ,  James W. Nicholas ,  Melvin E. R. Robinson

Inventor： Michael A. Cochran ,  Rickworth Folland ,  James W. Nicholas ,  Melvin E. R. Robinson

IPC: B65D81/26 ,  C08K5/098 ,  C08L67/02 ,  C08L77/00

CPC classification number: C08L67/02 ,  B65D81/266 ,  B65D81/267 ,  C08K5/098 ,  C08L77/00

Abstract: A process for the production of a wall for a package including producing a preform of the wall and stretching the preform of the wall where the preform includes a layer containing a polymer and having oxygen-scavenging properties. The preform and the stretching ratios applied are chosen (i) so that the time (t.sub.I) which the permeance of the wall for oxygen would take to rise to 1/5 of the value it would have in the absence of oxygen scavenging would be at least 10 days and (ii) if the preform were stretched at that time (t.sub.I) after the preform were produced, the time (t.sub.D) which the permeance of the wall for oxygen would take to rise 1/5 of the value it would have in the absence of scavenging would be at least 1/4 of the time (t.sub.I). The time between completion of step (A) and the commencement of step (B) is at least 10 days.

Abstract translation: 一种用于生产用于包装的壁的方法，包括生产壁的预成型件并拉伸壁的预成型件，其中预成型件包括含有聚合物的层并具有除氧性。 选择预制件和拉伸比（i），使得氧壁的渗透性将需要上升到没有氧气清除的值的1/5的时间（tI）将在 至少10天，（ii）如果在预制件生产之后预制件被拉伸（tI），则氧气壁的渗透性将达到其将具有的值的1/5的时间（tD） 在没有清理的情况下，将至少是1/4的时间（tI）。 步骤（A）完成和步骤（B）的开始之间的时间至少为10天。

公开(公告)号：US4697718A

公开(公告)日：1987-10-06

申请号：US831710

申请日：1986-02-21

Applicant: Peter E. Butcher ,  David A. Dick ,  James W. Nicholas ,  Melvin E. R. Robinson ,  Glyn Staines

Inventor： Peter E. Butcher ,  David A. Dick ,  James W. Nicholas ,  Melvin E. R. Robinson ,  Glyn Staines

IPC: B29C69/00 ,  B29B13/02 ,  B29C49/00 ,  B29C49/08 ,  B29C49/64 ,  B29C65/00 ,  B29C71/02 ,  B29D22/00 ,  B29D23/00 ,  B65D25/54

CPC classification number: B29D22/003 ,  B29B13/024 ,  B29C71/02 ,  B29C2793/009 ,  B29K2067/00 ,  B29K2995/0053 ,  B29L2023/00 ,  B29L2031/717 ,  Y10S264/90

Abstract: A food container comprising an open-ended cylindrical body which is made of a crystallizable polyethylene terephthalate material, and end closures at each end of the body forming with the body a closed container, the body material being biaxially oriented and the container body having been head-set, while restrained against radial or axial shrinkage, at a temperature between about 180.degree. C. and about 240.degree. C., whereby the container is able to withstand hot-filling, pasteurization or sterilization temperatures of up to about 120.degree. C. without undergoing shrinkage of its linear dimensions by more than 3%.

公开(公告)号：US5049624A

公开(公告)日：1991-09-17

申请号：US435404

申请日：1989-11-01

Applicant: John F. Adams ,  Michael A. Cochran ,  Rickworth Folland ,  James W. Nicholas ,  Melvin E. R. Robinson

Inventor： John F. Adams ,  Michael A. Cochran ,  Rickworth Folland ,  James W. Nicholas ,  Melvin E. R. Robinson

IPC: B65D81/24 ,  B32B1/02 ,  B32B7/02 ,  B32B15/08 ,  B32B27/18 ,  B32B27/32 ,  B65D65/40 ,  B65D81/26 ,  C08G69/00 ,  C08K5/00 ,  C08K5/098 ,  C08L23/06 ,  C08L23/12 ,  C08L67/02

CPC classification number: C08L23/06 ,  B32B27/18 ,  B65D81/267 ,  C08K5/005 ,  C08K5/098 ,  C08L23/10 ,  C08L23/12 ,  C08L67/02 ,  C08L27/08 ,  C08L51/06 ,  C08L67/00 ,  C08L75/04 ,  C08L79/04 ,  Y10T428/1359 ,  Y10T428/1379 ,  Y10T428/26 ,  Y10T428/31797

Abstract: The present invention provides a wall for a package comprising: (a) an outer set of one or more layers (1-4) and (b) an inner set of one or more layers (5-6) which layer or the outermost of which layers (5) comprises a composition comprising a polymer and having oxygen-scavenging properties, wherein (i) the outer set of layers would have, if separate from the inner set and in the absence of any oxygen-scavenging properties in any of the layers or the layer constituting the set, a permeance, for oxygen, of not more than 1.5 cm.sup.3 /(m.sup.2 atm day); (ii) the inner set of layers would have, if separate from the outer set and in the absence of oxygen-scavenging properties in any of the layers or the layer constituting the set, a permeance, for oxygen, of at least 2.0 cm.sup.3 /(m.sup.2 atm day); and (iii) the inner set of layers would have, if separate from the outer set, a permeance, for oxygen, less than the permeance specified in (ii) by at least 1.0 cm.sup.3 /(m.sup.2 atm day) by virtue of oxygen-scavenging in at least the layer specified in (b). In a preferred combination one of the outer layers (3) is of metal and the composition in the outermost of the inner layers (5) scavenges oxygen through the metal-catalyzed oxidation of an oxidizable organic component thereof. The wall is suitable for packaging uses, with the inner set of layers disposed towards the product, where headspace scavenging is especially desired.

公开(公告)号：US5021515A

公开(公告)日：1991-06-04

申请号：US340416

申请日：1989-03-23

Applicant: Michael A. Cochran ,  Rickworth Folland ,  James W. Nicholas ,  Melvin E. R. Robinson

Inventor： Michael A. Cochran ,  Rickworth Folland ,  James W. Nicholas ,  Melvin E. R. Robinson

IPC: B32B7/02 ,  B32B27/18 ,  B65D81/26 ,  C08J5/18 ,  C08K3/10 ,  C08K5/00 ,  C08K5/098 ,  C08K5/13 ,  C08K5/20 ,  C08L23/00 ,  C08L23/06 ,  C08L23/12 ,  C08L67/00 ,  C08L67/02 ,  C08L77/00

CPC classification number: C08L23/12 ,  B65D81/267 ,  C08K5/005 ,  C08K5/098 ,  C08L23/06 ,  C08L23/10 ,  C08L67/02 ,  C08L2310/00 ,  C08L77/00 ,  C08L79/04 ,  Y10T428/24942 ,  Y10T428/26 ,  Y10T428/2902 ,  Y10T428/2916 ,  Y10T428/31511

Abstract: The present invention provides a wall for a package, which wall comprises, or includes a layer comprising, a composition comprising a polymer and capable of scavenging oxygen through the metal-catalysed oxidation of an oxidisable organic component thereof. The oxidisable organic component is preferably itself a polymer, and may be the only polymer in the composition. Preferred compositions include a blend of 96% polyethylene terephthalate and 4% poly (m-xylyleneadipamide) containing 200 ppm cobalt as catalyst, with good permeance-versus-time performance (3) when formed into a bottle.

公开(公告)号：US4587075A

公开(公告)日：1986-05-06

申请号：US599697

申请日：1984-04-12

Applicant: Peter E. Butcher ,  David A. Dick ,  James W. Nicholas ,  Melvin E. R. Robinson ,  Glyn Staines

Inventor： Peter E. Butcher ,  David A. Dick ,  James W. Nicholas ,  Melvin E. R. Robinson ,  Glyn Staines

IPC: B29C69/00 ,  B29B13/02 ,  B29C49/00 ,  B29C49/08 ,  B29C49/64 ,  B29C65/00 ,  B29C71/02 ,  B29D22/00 ,  B29D23/00 ,  B29C61/02

CPC classification number: B29D22/003 ,  B29B13/024 ,  B29C71/02 ,  B29C2793/009 ,  B29K2067/00 ,  B29K2995/0053 ,  B29L2023/00 ,  B29L2031/717 ,  Y10S264/90

Abstract: For heat-setting tubular articles (such as can bodies) of an at least partly biaxially oriented crystallizable polymer, preferably a saturated linear polyester such as polyethylene terephthalate, e.g. for thermally processable food containers, a tube of the polymer is fitted over a mandrel and clamped at its ends to the mandrel at a temperature below the glass transition temperature of the polymer. The tube is then heated, e.g. by inserting a heater 28 into the interior of the mandrel, above the temperature to which it is to be heat-set (at least 60.degree. C. above for PET) whereupon it shrinks into contact with the mandrel but is restrained from axial or further radial shrinkage. The tube and mandrel are cooled to below the heat-set temperature and the tube may then be cut into can body sections by knives engaging in circumferential grooves. Contact between the tube and mandrel is released, e.g. by forcing compressed air out through small holes in the mandrel surface to allow the tube and mandrel to be separated. Tubular bodies with one closed end can be heat-set on a mandrel with a correspondingly shaped end.

Abstract translation: 对于至少部分双轴取向的可结晶聚合物的热定型管状制品（例如罐体），优选饱和直链聚酯，例如聚对苯二甲酸乙二醇酯。 对于可热加工的食品容器，将聚合物管装配在心轴上并在低于聚合物的玻璃化转变温度的温度下将其端部夹持到心轴。 然后将管加热，例如 通过将加热器28插入心轴的内部，高于其将被热定型的温度（对于PET至少60℃），随后它收缩成与心轴接触，但是被限制在轴向或更远的位置 径向收缩。 管和心轴被冷却到低于热定形温度，然后可以通过接合周向凹槽的刀将管切割成罐体部分。 管和心轴之间的接触被释放，例如 通过迫使压缩空气通过心轴表面中的小孔排出，以允许管和心轴分离。 具有一个封闭端的管体可以在具有相应形状的端部的心轴上热定型。