公开(公告)号：WO2004106426A1

公开(公告)日：2004-12-09

申请号：PCT/US2004/015451

申请日：2004-05-17

Applicant: CONTINENTAL PET TECHNOLOGIES, INC. ,  BOURGEOIS, Philip, D. ,  FARGHER, James, M.

Inventor： BOURGEOIS, Philip, D. ,  FARGHER, James, M.

IPC: C08K5/098

CPC classification number: B32B27/18 ,  B32B7/12 ,  B32B27/08 ,  B32B2307/7244 ,  B32B2439/60 ,  B65D1/0215 ,  C08K5/098 ,  C08K2201/012

Abstract: An oxygen barrier composition for polymeric materials includes a metal and an additive compound. The oxygen barrier composition can also contain a host polymer. Structures containing an oxygen barrier composition may be formed as a complete package, as a portion of a package, and/or as a precursor to a package.

Abstract translation: 用于聚合材料的氧阻隔组合物包括金属和添加剂化合物。 氧阻隔组合物还可以含有主体聚合物。 包含氧阻隔组合物的结构可以形成为作为包装的一部分的完整包装和/或作为包装的前体。

公开(公告)号：WO2004076300A1

公开(公告)日：2004-09-10

申请号：PCT/US2004/005889

申请日：2004-02-26

Applicant: CONTINENTAL PET TECHNOLOGIES, INC. ,  NAHILL, Thomas, E. ,  BARKER, Keith, J. ,  KALMOUNI, Bassam, M. ,  LYNCH, Brian, A. ,  LUFKIN, Kim, D.

Inventor： NAHILL, Thomas, E. ,  BARKER, Keith, J. ,  KALMOUNI, Bassam, M. ,  LYNCH, Brian, A. ,  LUFKIN, Kim, D.

IPC: B65D1/02

CPC classification number: B29C49/0073 ,  B29B2911/1402 ,  B29B2911/14026 ,  B29B2911/14033 ,  B29B2911/1404 ,  B29B2911/14053 ,  B29B2911/14066 ,  B29B2911/1408 ,  B29B2911/14093 ,  B29B2911/14106 ,  B29B2911/14113 ,  B29B2911/14126 ,  B29B2911/14133 ,  B29B2911/14153 ,  B29B2911/14213 ,  B29B2911/14233 ,  B29B2911/14326 ,  B29B2911/14328 ,  B29B2911/14333 ,  B29B2911/14335 ,  B29B2911/14337 ,  B29B2911/1444 ,  B29B2911/1446 ,  B29B2911/14466 ,  B29B2911/1458 ,  B29C49/02 ,  B29C49/06 ,  B29C57/02 ,  B29C65/00 ,  B29C65/02 ,  B29C65/48 ,  B29C65/56 ,  B29C65/565 ,  B29C66/112 ,  B29C66/131 ,  B29C66/5344 ,  B29C66/71 ,  B29C66/7234 ,  B29C2049/021 ,  B29C2791/001 ,  B29K2067/00 ,  B29L2031/7158 ,  B65D1/0215 ,  B65D1/0246 ,  Y10T428/1352 ,  B29K2067/003 ,  B29K2023/12 ,  B29K2023/06

Abstract: A method of making a plastic container having a body and a finish with at least one external thread includes providing a plastic preform (24) having a body (26) and a neck (28) and blow molding the body of the preform to form the body (12) of the container. Either prior to or subsequent to blow molding the container body, the preform neck is radially and circumferentially expanded. A finish ring (14) having at least one external thread (16) is secured to the external surface of the neck after expansion of the neck.

Abstract translation: 制造具有主体和具有至少一个外螺纹的精加工件的塑料容器的方法包括提供具有主体（26）和颈部（28）的塑料预成型件（24），并且吹塑成型预成型件的主体以形成 容器的主体（12）。 在吹塑成型容器主体之前或之后，预制件颈部径向和周向地膨胀。 具有至少一个外螺纹（16）的精加工环（14）在颈部膨胀后固定到颈部的外表面。

公开(公告)号：WO2004076158A1

公开(公告)日：2004-09-10

申请号：PCT/US2004/005890

申请日：2004-02-26

Applicant: CONTINENTAL PET TECHNOLOGIES, INC. ,  NAHILL, Thomas, E. ,  LARSEN, W., Bruce

Inventor： NAHILL, Thomas, E. ,  LARSEN, W., Bruce

IPC: B29C49/02

CPC classification number: B29C49/0073 ,  B29B2911/1402 ,  B29B2911/14026 ,  B29B2911/14033 ,  B29B2911/1404 ,  B29B2911/14053 ,  B29B2911/14066 ,  B29B2911/1408 ,  B29B2911/14093 ,  B29B2911/14106 ,  B29B2911/1412 ,  B29B2911/14126 ,  B29B2911/14133 ,  B29B2911/14146 ,  B29B2911/14153 ,  B29B2911/14213 ,  B29B2911/14226 ,  B29B2911/14233 ,  B29B2911/1424 ,  B29B2911/14266 ,  B29B2911/14326 ,  B29B2911/14328 ,  B29B2911/14333 ,  B29B2911/14335 ,  B29B2911/14337 ,  B29B2911/14341 ,  B29B2911/1442 ,  B29B2911/1444 ,  B29B2911/1446 ,  B29B2911/14466 ,  B29B2911/1458 ,  B29C49/02 ,  B29C49/06 ,  B29C49/221 ,  B29C65/00 ,  B29C65/02 ,  B29C65/48 ,  B29C65/565 ,  B29C66/1222 ,  B29C66/1224 ,  B29C66/1312 ,  B29C66/5344 ,  B29C66/71 ,  B29C66/7234 ,  B29C66/73773 ,  B29C66/73921 ,  B29C2049/021 ,  B29C2791/001 ,  B29K2067/00 ,  B29K2995/004 ,  B29K2995/0041 ,  B29K2995/0065 ,  B29L2031/7158 ,  B65D1/0215 ,  B65D1/023 ,  B65D1/0246 ,  Y10T428/1352 ,  B29K2077/00 ,  B29K2023/12 ,  B29K2023/086 ,  B29K2023/06

Abstract: A preform assembly for blow molding a container includes a molded plastic preform (22, 52 or 62) having a body (26) and a neck (28 or 54) with an external surface. The neck includes a plurality of spaced lands (32 or 56) molded integrally with the neck and the body and defining the external surface of the neck, and a plurality of open spaces (34 or 58) between the lands. A plastic finish ring (24) is molded separately from the preform and is externally secured over the lands. The open spaces between the lands reduce heat transfer between the preform neck and the finish ring. In two exemplary embodiments of the invention, the lands include either spaced axial ribs (32) or spaced circumferential ribs (56) on the preform neck, and the open spaces include either spaced axial channels (34) or spaced circumferential channels (58) between the ribs.

Abstract translation: 用于吹塑容器的预成型件组件包括具有主体（26）和具有外表面的颈部（28或54）的模制塑料预制件（22,52或62）。 颈部包括与颈部和主体一体模制并限定颈部的外表面的多个间隔开的平台（32或56），以及在平台之间的多个开放空间（34或58）。 塑料精加工环（24）与预成型件分开模制，并且外部固定在平台上。 土地之间的开放空间减少了预制件颈部和精加工环之间的热传递。 在本发明的两个示例性实施例中，平台包括在预成型件颈部上的间隔开的轴向肋（32）或隔开的周向肋（56），并且开放空间包括间隔开的轴向通道（34）或间隔开的圆周通道（58） 肋骨。

公开(公告)号：WO2004063092A1

公开(公告)日：2004-07-29

申请号：PCT/US2004/000193

申请日：2004-01-04

Applicant: CONTINENTAL PET TECHNOLOGIES, INC ,  ZHANG, Peter, Q. ,  GRANT, Robert, P. ,  ESHBACK, Keith ,  STAVROPOULOS, Nicholas, J.

Inventor： ZHANG, Peter, Q. ,  GRANT, Robert, P. ,  ESHBACK, Keith ,  STAVROPOULOS, Nicholas, J.

IPC: B98D1/02

CPC classification number: B65D79/005 ,  B65D1/0223 ,  B65D2501/0027 ,  B65D2501/0081 ,  B67C3/14

Abstract: A plastic container (22 or 50) includes a plastic body having a polygonal sidewall contour with rounded corners (34, 52) on a cylinder of revolution (38, 54) and flat panels (36, 56) extending between the corners chordally of the cylinder of revolution. In the preferred embodiments of the invention, a label (30) is disposed on an exterior surface of at least one of the flat panels, and most preferably extends circumferentially around the exterior surface of the container sidewall. Upon filling the container with hot liquid and capping the container, the flat panels bow radially inwardly as the liquid cools. However, any labeling placed on the container, either before or after cooling, is secured to the panels as well as the rounded corners, and does not wrinkle or crinkle during storage or use.

Abstract translation: 塑料容器（22或50）包括具有多边形侧壁轮廓的塑料体，其具有在旋转圆筒（38,54）上的圆角（34,52）和平滑面板（36,56） 革命圆柱。 在本发明的优选实施例中，标签（30）设置在至少一个平板的外表面上，并且最优选地围绕容器侧壁的外表面周向延伸。 当用热液体填充容器并盖住容器时，平板在液体冷却时向内径向向内弯曲。 然而，在冷却之前或之后放置在容器上的任何标签固定到面板以及圆角上，并且在储存或使用期间不起皱或皱缩。

公开(公告)号：WO1997043108A1

公开(公告)日：1997-11-20

申请号：PCT/US1997009244

申请日：1997-05-14

Applicant: CONTINENTAL PET TECHNOLOGIES INC. ,  GROB, Rolf ,  KRISHNAKUMAR, Suppayan, M. ,  HARRY, Ieuan, L. ,  NAHILL, Thomas, E.

Inventor： CONTINENTAL PET TECHNOLOGIES INC.

IPC: B29C49/20

CPC classification number: B65D23/106 ,  B29B2911/1402 ,  B29B2911/14026 ,  B29B2911/14033 ,  B29B2911/1404 ,  B29B2911/14053 ,  B29B2911/14066 ,  B29B2911/1408 ,  B29B2911/14093 ,  B29B2911/14106 ,  B29B2911/14113 ,  B29B2911/1412 ,  B29B2911/14126 ,  B29B2911/14133 ,  B29B2911/1414 ,  B29B2911/14146 ,  B29B2911/14153 ,  B29B2911/14326 ,  B29B2911/14328 ,  B29B2911/1433 ,  B29B2911/14331 ,  B29B2911/14333 ,  B29B2911/14335 ,  B29B2911/14336 ,  B29B2911/14337 ,  B29B2911/14446 ,  B29B2911/14466 ,  B29B2911/14493 ,  B29C49/0073 ,  B29C49/06 ,  B29C49/20 ,  B29C49/221 ,  B29C49/4236 ,  B29C2049/2017 ,  B29C2049/2039 ,  B29C2049/2073 ,  B29C2049/2082 ,  B29K2067/00 ,  B29K2105/26 ,  B29K2995/0053 ,  B29L2031/463 ,  B29L2031/7158 ,  B65D23/10

Abstract: Method of securing a separate handle (18) to a plastic blow-molded container, the container having a molded external flange which is not subject to stretching during the blow-molding process. The flange has a substantially flat underside face and serves as a rigid support for the handle (18) when a substantially flat upper abutment surface of the handle (18) is positioned against the flange. Preferably, the upper end of the handle (18) has a downwardly extending lug (15) which is surrounded by the blow-molded sidewall of the container. The preform and handle (18) can be brought together into position where the upper end of the handle is adjacent to the underside of the external flange by relative movement of the preform and handle (18) towards each other along a first path which is substantially perpendicular to the longitudinal axis of the preform. In addition, the handle (18) and preform can be brought together prior to their introduction into the mold, and then introduced together into the blow mold along a second path which is also substantially perpendicular to the longitudinal axis of the preform. Further, the preform can be heated prior to introduction into the mold, while the handle (18) remains unheated.

Abstract translation: 将单独的手柄（18）固定到塑料吹塑容器的方法，该容器具有在吹塑过程中不经受拉伸的模制的外部凸缘。 当所述手柄（18）的基本上平坦的上邻接表面抵靠所述凸缘定位时，所述凸缘具有基本上平坦的下侧面并且用作所述手柄（18）的刚性支撑件。 优选地，手柄（18）的上端具有由容器的吹塑侧壁围绕的向下延伸的凸耳（15）。 预成型件和手柄（18）可以通过预成型件和把手（18）沿着第一路径相对移动而将手柄的上端与外部凸缘的下侧相邻的位置放置在其中，所述第一路径基本上 垂直于预成型件的纵向轴线。 此外，手柄（18）和预成型件可以在它们被引入模具之前被带到一起，然后沿着也基本上垂直于预成型件的纵向轴线的第二路径一起引入到吹塑模具中。 此外，预成型件可以在引入模具之前加热，同时手柄（18）保持不加热。

公开(公告)号：WO1996020074A1

公开(公告)日：1996-07-04

申请号：PCT/US1995017011

申请日：1995-12-27

Applicant: CONTINENTAL PET TECHNOLOGIES, INC.

Inventor： CONTINENTAL PET TECHNOLOGIES, INC. ,  COLLETTE, Wayne, N. ,  NAHILL, Thomas, E. ,  KRISHNAKUMAR, Suppayan, M.

IPC: B29C45/16

CPC classification number: B29C45/7207 ,  B29B2911/14053 ,  B29B2911/1406 ,  B29B2911/14066 ,  B29B2911/1408 ,  B29B2911/14093 ,  B29B2911/1412 ,  B29B2911/14126 ,  B29B2911/14146 ,  B29B2911/14153 ,  B29B2911/1498 ,  B29B2911/14993 ,  B29C49/22 ,  B29C2043/527 ,  B29K2105/253 ,  Y10S264/904

Abstract: Method of making multilayer preforms which resist delamination and in a reduced cycle time. A first array of preforms are molded onto a first array of cores in an associated array of mold cavities, the cores and preforms are removed from the mold cavities as soon as possible without significant physical preform deformation, and the preforms are then cooled on the cores while a second array of cores is positioned in the mold cavities. Cooling on the cores prevents delamination of the preform layers and reduces the in-mold cooling time. Providing multiple sets of cores on a rotating turret further reduces the cycle time compared to the prior art use of robotic cooling tubes.

Abstract translation: 制造多层预成型件的方法，其能够防止分层并且在缩短的循环时间内。 将第一组预成型件模制到相关联的模腔阵列中的第一芯体阵列上，尽可能快地将核心和预成型件从模具腔中移除，而不会使预制件产生明显的物理变形，然后将预制件在芯部上冷却 而第二阵列芯位于模腔中。 芯上的冷却可防止预成型层的分层，并降低模内冷却时间。 与现有技术的机器人冷却管的使用相比，在旋转转台上提供多组芯片进一步减少了循环时间。

公开(公告)号：WO1995016554A1

公开(公告)日：1995-06-22

申请号：PCT/US1994014350

申请日：1994-12-13

Applicant: CONTINENTAL PET TECHNOLOGIES, INC.

Inventor： CONTINENTAL PET TECHNOLOGIES, INC. ,  COLLETTE, Wayne, N. ,  SCHMIDT, Steven, L. ,  KRISHNAKUMAR, Suppayan, M.

IPC: B29C49/22

CPC classification number: B32B1/02 ,  B29B2911/14053 ,  B29B2911/1406 ,  B29B2911/14066 ,  B29B2911/1408 ,  B29B2911/14093 ,  B29B2911/1412 ,  B29B2911/14126 ,  B29B2911/14146 ,  B29B2911/14153 ,  B29B2911/14593 ,  B29B2911/14633 ,  B29B2911/14693 ,  B29B2911/14713 ,  B29B2911/14906 ,  B29C49/0005 ,  B29C49/06 ,  B29C49/22 ,  B29C49/221 ,  B29C49/6409 ,  B29C2049/0089 ,  B29K2067/00 ,  B29K2105/258 ,  B29K2105/26 ,  B29K2995/0026 ,  B29K2995/004 ,  B29K2995/0041 ,  B29K2995/0043 ,  B29K2995/0067 ,  B29K2995/0069 ,  B29L2009/00 ,  B29L2031/7158 ,  B32B27/08 ,  B32B27/36 ,  B32B2250/244 ,  B32B2307/412 ,  B32B2367/00 ,  B32B2439/00 ,  B65D1/0215 ,  Y10T428/1352 ,  Y10T428/1379 ,  Y10T428/1383 ,  Y10T428/1393 ,  Y10T428/31786

Abstract: A multilayer preform and container, and method of forming the same, having at least one layer including polyethylene naphthalate (PEN) to provide enhanced oxygen barrier performance and thermal stability. The PEN layer may be a homopolymer, copolymer, or blend of PEN. In a first high-PEN embodiment, the exterior layer contains on the order of 80-100 % PEN and 0-20 % PET by total weight of the layer, and a core layer of a nonstrain hardenable polyester such as PETG. In a second low-PEN embodiment, the exterior layer includes a strain hardenable low-PEN copolymer or blend including on the order of 1-20 % PEN and 80-99 % PET, and the core layer is a strain-hardenable polyester such as a low-copolymer PET. In a third mid-range PEN embodiment, the exterior wall includes a substantially amorphous PEN copolymer or blend containing on the order of 20-80 % PEN and 80-20 % of another polyester such as PET, and a strain-hardened core layer of polyester such as a low-copolymer PET. To further enhance the oxygen barrier and thermal stability properties, the core layer may further include a copolymer or blend of PEN. Alternatively, PEN may be provided in an interior layer only.

Abstract translation: 多层预制件和容器及其形成方法，具有至少一层包括聚萘二甲酸乙二醇酯（PEN）的层，以提供增强的氧阻隔性能和热稳定性。 PEN层可以是PEN的均聚物，共聚物或共混物。 在第一高PEN实施方案中，外层通过层的总重量含有80-100％PEN和0-20％PET的量级，以及诸如PETG的非应变可硬化聚酯的芯层。 在第二个低PEN实施方案中，外层包括应变可硬化低PEN共聚物或共混物，其包含约1-20％PEN和80-99％PET的量级，并且芯层是应变可硬化聚酯，例如 低共聚物PET。 在第三中档PEN实施方案中，外壁包括基本上无定形的PEN共聚物或共混物，其含有约20-80％PEN和80-20％的另一种聚酯如PET，并且应变硬化芯层 聚酯如低共聚物PET。 为了进一步提高氧气阻隔性和热稳定性，芯层可以进一步包括PEN的共聚物或共混物。 或者，可以仅在内层中提供PEN。

公开(公告)号：WO2004076299A1

公开(公告)日：2004-09-10

申请号：PCT/US2004/005888

申请日：2004-02-26

Applicant: CONTINENTAL PET TECHNOLOGIES, INC. ,  NAHILL, Thomas, E. ,  LYNCH, Brian, A.

Inventor： NAHILL, Thomas, E. ,  LYNCH, Brian, A.

IPC: B65D1/02

CPC classification number: B29C49/0073 ,  B29B2911/1402 ,  B29B2911/14026 ,  B29B2911/14033 ,  B29B2911/1404 ,  B29B2911/14053 ,  B29B2911/14066 ,  B29B2911/1408 ,  B29B2911/14093 ,  B29B2911/14106 ,  B29B2911/14126 ,  B29B2911/14133 ,  B29B2911/14153 ,  B29B2911/14213 ,  B29B2911/14233 ,  B29B2911/14326 ,  B29B2911/14328 ,  B29B2911/14333 ,  B29B2911/14335 ,  B29B2911/14337 ,  B29B2911/1442 ,  B29B2911/1444 ,  B29B2911/14466 ,  B29B2911/1458 ,  B29C49/02 ,  B29C49/06 ,  B29C65/565 ,  B29C65/66 ,  B29C66/1312 ,  B29C66/5344 ,  B29C66/71 ,  B29C66/7234 ,  B29C2049/021 ,  B29K2067/00 ,  B29L2031/7158 ,  B65D1/0215 ,  B65D1/0246 ,  Y10T428/1352 ,  B29K2077/00 ,  B29K2067/003 ,  B29K2023/12 ,  B29K2023/086

Abstract: A preform assembly (20) for blow molding a container includes a molded plastic preform (22) having an open mouth, a neck (28) surrounding the mouth with an external surface at a first diameter, an external flange (30) at one end of the neck surrounding the mouth, and a preform body (26) integrally molded with the neck at an end of the neck spaced from the flange. The preform body has a second external diameter that is greater than the first diameter of the neck external surface. A circumferentially continuous molded plastic finish ring (24) is externally secured over the external surface of the neck between the flange and the preform body. In the preferred embodiments of the invention, the finish ring is secured to the preform neck by expanding the ring over the flange, most preferably using a mandrel 40, and then allowing the ring resiliently to shrink onto the external surface of the neck.

Abstract translation: 用于吹塑成型容器的预成型件组件（20）包括具有开口的模制塑料预制件（22），围绕所述口部的颈部（28），外表面具有第一直径，一端的外部凸缘（30） 以及与所述颈部在所述颈部的与所述凸缘间隔开的端部与所述颈部整体模制的预成型体本体（26）。 预成型体本体具有大于颈部外表面的第一直径的第二外径。 周向连续的模制塑料精加工环（24）在外部固定在凸缘和预成型体之间的颈部的外表面上。 在本发明的优选实施例中，通过将环扩展到凸缘上，最优选地使用心轴40，然后使环弹性地收缩到颈部的外表面上，将精加工环固定到预制棒颈部。

公开(公告)号：WO2004067263A1

公开(公告)日：2004-08-12

申请号：PCT/US2004/001841

申请日：2004-01-23

Applicant: CONTINENTAL PET TECHNOLOGIES, INC. ,  LYNCH, Brian, A. ,  BARKER, Keith, J. ,  NAHILL, Thomas, E.

Inventor： LYNCH, Brian, A. ,  BARKER, Keith, J. ,  NAHILL, Thomas, E.

IPC: B29C49/02

CPC classification number: B29C57/045 ,  B29B2911/1402 ,  B29B2911/14026 ,  B29B2911/14033 ,  B29B2911/1404 ,  B29B2911/14053 ,  B29B2911/14066 ,  B29B2911/1408 ,  B29B2911/14093 ,  B29B2911/14106 ,  B29B2911/1412 ,  B29B2911/14126 ,  B29B2911/14133 ,  B29B2911/14146 ,  B29B2911/14153 ,  B29B2911/14213 ,  B29B2911/14226 ,  B29B2911/14233 ,  B29B2911/14666 ,  B29C49/02 ,  B29C49/06 ,  B29C49/221 ,  B29C49/76 ,  B29C2791/001 ,  B29K2067/00 ,  B29K2995/004 ,  B29K2995/0067 ,  B29L2031/716 ,  Y10S264/908 ,  Y10T428/1352

Abstract: A method of making a plastic container (40) having a body (24) and a finish (36) with at least one external thread (38) includes injection or compression molding a plastic preform (10) having a body (12) and a finish (14) with at least one external thread (16), blow molding the body of the preform to form the body of the container, and either prior to, subsequent to or both prior and subsequent to blow molding the container body, expanding the injection or compression molded preform finish to form a container finish having at least one injection or compression molded external thread. In the preferred embodiments of the invention, the finish is expanded after the container body is blow-molded. The invention can be implemented to expand a narrow-neck preform or container finish to a wide-mouth preform or container finish.

Abstract translation: 制造具有主体（24）和具有至少一个外螺纹（38）的精加工（36）的塑料容器（40）的方法包括注射或压缩模制具有主体（12）和 （14）具有至少一个外螺纹（16），吹塑成型预成型体的主体以形成容器的主体，并且在吹塑成型容器主体之前，之后或之后，将容器主体膨胀 注塑或压缩成型的预成型件，以形成具有至少一个注塑或压塑外螺纹的容器整理。 在本发明的优选实施方案中，在将容器主体吹塑成型后，加工完成。 本发明可以实现以将窄颈预制件或容器表面扩展到广口预制件或容器表面。

公开(公告)号：WO1998024844A1

公开(公告)日：1998-06-11

申请号：PCT/US1997022353

申请日：1997-12-05

Applicant: CONTINENTAL PET TECHNOLOGIES, INC. ,  SCHMIDT, Steven, L. ,  LYNCH, Bryan ,  AGRAWAL, Amit, Suresh

Inventor： CONTINENTAL PET TECHNOLOGIES, INC.

IPC: C08L67/02

CPC classification number: C08G63/80 ,  B29B2911/1402 ,  B29B2911/14026 ,  B29B2911/14033 ,  B29B2911/1404 ,  B29B2911/1406 ,  B29B2911/14066 ,  B29B2911/1408 ,  B29B2911/14086 ,  B29B2911/14093 ,  B29B2911/14106 ,  B29B2911/14113 ,  B29B2911/14126 ,  B29B2911/14133 ,  B29B2911/1414 ,  B29B2911/14153 ,  B29K2067/00 ,  B29K2995/0025 ,  B29K2995/004 ,  C08L67/02 ,  Y10S264/917 ,  C08L2666/18

Abstract: Process for controlling the change of intrinsic viscosity and transesterification during solid stating of a polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) blend, with an effective amount of an alkylene glycol compound. The process enables the production of a copolymer based on predefined initial and final IV's and final transesterification level, by varying the solid-stating time and/or effective amount of alkylene glycol. In one embodiment, a relatively greater amount of post-consumer PET (e.g., 70 %) having an IV of on the order of 0.72-0.73, is incorporated in the blend to provide a final IV on the order of 0.80-0.85, and a moderate, controlled level of transesterification; the blend is used to injection mold a sleeve layer of a preform. In another embodiment, a substantially transparent neck finish for a preform is made from a PEN/PET blend having an amount of alkylene glycol which enables substantial transesterification, without excessive increase in IV.

Abstract translation: 用于控制聚对苯二甲酸乙二醇酯（PET）和聚萘二甲酸乙二醇酯（PEN）共混物固化期间的特性粘度和酯交换的变化与有效量的亚烷基二醇化合物的方法。 该方法通过改变固化时间和/或有效量的亚烷基二醇，可以基于预定义的初始和最终IV和最终酯交换水平生产共聚物。 在一个实施方案中，将具有大约0.72-0.73的IV的相对较大量的消费后PET（例如，70％）掺入共混物中以提供大约0.80-0.85的最终IV，以及 中等，受控的酯交换水平; 该混合物用于注射成型预成型件的套筒层。 在另一个实施方案中，用于预成型件的基本上透明的颈部精加工由具有一定量的亚烷基二醇的PEN / PET共混物制成，其能够进行显着的酯交换，而不会过度增加IV。