-
1.发明授权Forming non-cylindrical articles from preforms of polyalkylene terephthalate 失效从聚对苯二甲酸亚烷基酯的预制件形成非圆柱形制品
公开(公告)号：US4254079A
公开(公告)日：1981-03-03
申请号：US971398
申请日：1978-12-20
IPC分类号： B29C49/64 , B29B11/08 , B29C49/00 , B29C49/06 , B29C49/08 , B29C49/12 , B29C49/48 , B29C49/58 , B29C49/68 , B29C65/00 , B29C17/07
CPC分类号： B29C49/12 , B29C49/08 , B29C49/58 , B29C49/06 , B29K2067/00
摘要： In forming hollow, molecularly oriented articles having a substantially oval or substantially equilateral triangular cross section from thermoplastic preforms by a method which includes distending the preforms in a mold while at molecular orientation temperature, the improvement providing improved material distribution in regions furthest from the axes of the articles when the thermoplastic is moldable polyalkylene terephthalate having an inherent viscosity of at least 0.55 which involves limiting the corner definition ratio to between about 3 to about 9 and the circular deviation ratio to no greater than about 2.4 at the cross section during distension and controlling axial and maximum radial stretch of the preforms within predetermined limits.
摘要翻译： 在通过包括在分子取向温度下将预型件膨胀在模具中的方法形成具有基本上椭圆形或基本上等边三角形横截面的中空的分子取向制品时，该改进提供了在最远离 当热塑性塑料是具有至少0.55的特性粘度的可成型聚对苯二甲酸亚烷基酯时的制品，其包括将角度定义比限制在约3至约9之间，并且在膨胀和控制期间的横截面处的圆偏差比不大于约2.4 预成型件的轴向和最大径向拉伸在预定限度内。
-
公开(公告)号：US4497855A
公开(公告)日：1985-02-05
申请号：US261061
申请日：1981-05-06
CPC分类号： E04G21/16 , B65D1/0223 , B29K2995/004 , Y10T428/1397
摘要： A collapse resistant polyester container is provided for hot fill applications employing product fill temperatures up to about 190.degree. F. (87.8.degree. C.) or more. The container has at least one region which is thermoelastically deformable inwardly after the container is hot filled and sealed to offset the pressure forces which tend to collapse the container as the contents cool and create an internal vacuum. The thermoelastic region is preferably formed in a two step molding process in which the region is formed and heat set at a first position and then reformed outwardly to a second position and cooled in that position.
摘要翻译： 提供耐塌陷的聚酯容器用于热填充应用，使用产品填充温度高达约190°F（87.8℃）或更高。 容器具有至少一个区域，其在容器被热填充和密封之后向内热膨胀地变形，以抵消当内容物冷却并产生内部真空时倾向于使容器塌缩的压力。 优选地，热弹性区域以两步成型工艺形成，其中形成区域并将其热定形在第一位置，然后向外重新形成第二位置并在该位置冷却。
-
3.发明授权Forming non-cylindrical articles from preforms of polyalkylene terephthalate 失效从聚对苯二甲酸亚烷基酯的预制件形成非圆柱形制品
公开(公告)号：US4380526A
公开(公告)日：1983-04-19
申请号：US230474
申请日：1981-02-02
CPC分类号： B29C49/6409 , B29C49/08 , B29K2067/00
摘要： In forming hollow, molecularly oriented articles having a substantially oval or substantially equilateral triangular cross section from thermoplastic preforms by a method which includes distending the preforms in a mold while at molecular orientation temperature, the improvement providing improved material distribution in regions furthest from the axes of the articles when the thermoplastic is moldable polyalkylene terephthalate having an inherent viscosity of at least 0.55 which involves limiting the corner definition ratio to between about 3 to about 9 and the circular deviation ratio to no greater than about 2.4 at the cross section during distension and controlling axial and maximum radial stretch of the preforms within predetermined limits.
摘要翻译： 在通过包括在分子取向温度下将预型件膨胀在模具中的方法形成具有基本上椭圆形或基本上等边三角形横截面的中空的分子取向制品时，该改进提供了在最远离 当热塑性塑料是具有至少0.55的特性粘度的可成型聚对苯二甲酸亚烷基酯时的制品，其包括将角度定义比限制在约3至约9之间，并且在膨胀和控制期间的横截面处的圆偏差比不大于约2.4 预成型件的轴向和最大径向拉伸在预定限度内。
-
4.发明授权Forming substantially rectangular articles from preforms of polyalkylene terephthalate 失效从聚对苯二甲酸亚烷基酯的预制件形成基本上矩形的制品
公开(公告)号：US4254080A
公开(公告)日：1981-03-03
申请号：US23941
申请日：1979-03-27
CPC分类号： B29C49/08 , B29C49/0005 , B29C49/0073 , B29C49/6409 , B29B2911/1402 , B29B2911/14026 , B29B2911/14033 , B29B2911/1404 , B29B2911/14106 , B29B2911/14133 , B29B2911/14326 , B29B2911/14333 , B29B2911/1444 , B29B2911/14466 , B29B2911/14593 , B29B2911/14653 , B29B2911/14713 , B29K2067/00
摘要： In forming hollow, molecularly oriented articles having substantially rectangular cross sections from thermoplastic preforms by a method which includes distending the preforms in a mold while at molecular orientation temperature, the improvement providing improved material distribution in regions furthest from the central axes of the articles (e.g. in the corner areas) when the thermoplastic is moldable polyalkylene terephthalate having an inherent viscosity of at least 0.55 which involves limiting the corner definition ratio to between about 2 to about 14 and the circular deviation ratio to no greater than about 2.4 at the cross section during distension and controlling axial and maximum radial stretch of the preforms within predetermined limits.
摘要翻译： 在通过包括在分子取向温度下使预型件膨胀在模具中的方法形成具有基本上矩形横截面的中空的分子取向制品时，该改进提供了在距物品中心轴最远的区域（例如， 在拐角区域），当热塑性塑料是具有至少0.55的特性粘度的可模制聚对苯二甲酸亚烷基酯时，其涉及将拐角定义比限制在约2至约14之间，并且在横截面处将圆偏差比限制为不大于约2.4 膨胀并且将预成型件的轴向和最大径向拉伸控制在预定限度内。
-
5.发明授权
公开(公告)号：US4025594A
公开(公告)日：1977-05-24
申请号：US615998
申请日：1975-09-23
CPC分类号： B29C71/02 , B29C49/0005 , B29C49/6409 , B29B2911/1402 , B29B2911/14026 , B29B2911/14033 , B29B2911/1404 , B29B2911/14106 , B29B2911/14133 , B29C2035/0822 , B29C49/06 , B29K2023/00 , B29K2025/00 , B29K2033/20 , B29K2067/00 , Y10S264/64 , Y10S264/65
摘要： Hollow articles such as bottles and containers are formed from tubular, elongated injection molded preforms made of thermoplastic material and having a finished neck portion adjacent an open end and a closed end body portion which method comprises annealing said preform by heating the portion of the preform body adjacent the neck to a temperature just below or about the Tg (glass transition temperature) for such material while maintaining the remainder of the preform body at a significantly lower temperature, for a sufficient time to essentially relieve the internal stresses in said body portion adjacent the neck, such annealing step being applied prior to the thermoforming of said preform into the hollow article.
摘要翻译： 空心制品如瓶子和容器由管状细长的注射成型的由热塑性材料制成的预成型件形成，并且具有邻近开口端的完成的颈部部分和封闭的端部主体部分，该方法包括通过加热预成型体本体部分来退火所述预成型件 在温度刚好低于或约为Tg（玻璃化转变温度）的温度下将温度保持在低于或约为Tg（玻璃化转变温度）的温度，同时将预成型体的其余部分保持在明显较低的温度，足够的时间基本上减轻所述主体部分中的内部应力 颈部，这种退火步骤在将所述预制件热成型为中空制品之前应用。
-
公开(公告)号：US4199629A
公开(公告)日：1980-04-22
申请号：US930970
申请日：1978-08-04
CPC分类号： B29C49/12 , B29C49/6445 , B29C2049/0089 , B29C49/06 , B29C49/4289 , B29C61/02 , B29K2033/18 , B29K2105/258 , B29K2633/18 , Y10S428/91 , Y10T428/1331 , Y10T428/1397 , Y10T428/24479
摘要： In forming containers from injection molded preforms of thermoplastic material such as nitrile-based polymers by a process which includes heating the preforms to orientation temperature followed by distension to container form in a mold, the improvement providing reduced thickness variability in lower portions of the containers which involves controlling preform shrinkage during such heating to between about 4 to 15% of the initial length for nitrile materials by maintaining the ratio of average thickness to inside preform surface area within defined limits and then axially and radially stretching such preforms during distension to predetermined levels. Nitrile preforms convertible to such improved quality containers have values of between about 0.005 to 0.011 inch.sup.-1 for the aforementioned ratio.
摘要翻译： 在通过包括将预成型件加热到定型温度并随之扩大到模具中的容器形式的方法的方法中，通过诸如腈基聚合物的注塑成型的热塑性材料预成型体形成容器，该改进提供了容器下部的厚度变化 涉及通过将平均厚度与内部预制件表面积之比保持在限定的范围内，然后在扩张期间轴向和径向拉伸这种预制件至预定水平，从而将这种加热期间的预成型件收缩率控制在腈材料初始长度的约4至15％之间。 对于上述比例，可转换成这种改进质量容器的腈预成型件的值为约0.005至0.011英寸-1。
-
公开(公告)号：US4131666A
公开(公告)日：1978-12-26
申请号：US844652
申请日：1977-10-25
IPC分类号： B29C65/00 , B29B11/08 , B29C49/00 , B29C49/06 , B29C49/12 , B29C49/28 , B29C49/64 , B29C49/68 , B29C61/02 , B29C17/07
CPC分类号： B29C49/12 , B29C49/6445 , B29C2049/0089 , B29C49/06 , B29C49/4289 , B29C61/02 , B29K2033/18 , B29K2105/258 , B29K2633/18
摘要： In forming containers from injection molded preforms of thermoplastic material such as nitrile-based polymers by a process which includes heating the preforms to orientation temperature followed by distension to container form in a mold, the improvement providing reduced thickness variability in lower portions of the containers which involves controlling preform shrinkage during such heating to between about 4 to 15% of the initial length for nitrile materials by maintaining the ratio of average thickness to inside preform surface area within defined limits and then axially and radially stretching such preforms during distension to predetermined levels. Nitrile preforms convertible to such improved quality containers have values of between about 0.005 to 0.011 inch.sup.-1 for the aforementioned ratio.
摘要翻译： 在通过包括将预成型件加热到定型温度并随之扩大到模具中的容器形式的方法的方法中，通过诸如腈基聚合物的注塑成型的热塑性材料预成型体形成容器，该改进提供了容器下部的厚度变化 涉及通过将平均厚度与内部预制件表面积之比保持在限定的范围内，然后在扩张期间轴向和径向地拉伸这种预制件至预定水平，从而将这种加热期间的预制件收缩率控制在腈材料初始长度的约4至15％之间。 对于上述比例，可转换成这种改进质量容器的腈预成型件的值为约0.005至0.011英寸-1。
-
8.发明授权Method for producing a collapse resistant polyester container for hot fill applications 失效用于生产用于热填充应用的耐塌陷聚酯容器的方法
公开(公告)号：US4318882A
公开(公告)日：1982-03-09
申请号：US123100
申请日：1980-02-20
CPC分类号： B65D1/0223 , B29C49/6481 , B65D79/005 , B29C49/06 , B29C49/12 , B29C49/18 , B29K2067/00 , B29K2667/00 , B29K2995/0017 , B65D2501/0036 , Y10S264/903 , Y10S264/905
摘要： A collapse resistant polyester container is provided for hot fill applications employing product fill temperatures up to about 190.degree. F. (87.8.degree. C.) or more. The container has at least one region which is thermoelastically deformable inwardly after the container is hot filled and sealed to offset the pressure forces which tend to collapse the container as the contents cool and create an internal vacuum. The thermoelastic region is preferably formed in a two step molding process in which the region is formed and heat set at a first position and then reformed outwardly to a second position and cooled in that position.
摘要翻译： 提供耐塌陷的聚酯容器用于热填充应用，使用产品填充温度高达约190°F（87.8℃）或更高。 容器具有至少一个区域，其在容器被热填充和密封之后向内热膨胀地变形，以抵消当内容物冷却并产生内部真空时倾向于使容器塌缩的压力。 优选地，热弹性区域以两步成型工艺形成，其中形成区域并将其热定形在第一位置，然后向外重新形成第二位置并在该位置冷却。
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.019 秒)
