公开(公告)号：US4174043A

公开(公告)日：1979-11-13

申请号：US850364

申请日：1977-11-10

申请人： Morris Salame ,  Samuel Steingiser

发明人： Morris Salame ,  Samuel Steingiser

IPC分类号： B29C49/64 ,  B29B13/08 ,  B29C45/00 ,  B29C47/00 ,  B29C49/00 ,  B29C49/02 ,  B29C49/08 ,  B29C49/42 ,  B29C51/00 ,  B29C65/00 ,  B29C65/06 ,  B29C71/04 ,  B29D22/00 ,  B29K33/18 ,  B29L22/00 ,  B65D1/02 ,  C08J3/28 ,  C08K5/07 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L33/18 ,  C08L33/20 ,  C08L101/00 ,  B65D23/00

CPC分类号： B65D1/0207 ,  B29C49/0005 ,  B29C49/0073 ,  B29C71/04 ,  B29B2911/1402 ,  B29B2911/14026 ,  B29B2911/14033 ,  B29B2911/1404 ,  B29B2911/14106 ,  B29B2911/14133 ,  B29B2911/1416 ,  B29B2911/14186 ,  B29B2911/14213 ,  B29B2911/14306 ,  B29B2911/14326 ,  B29B2911/14328 ,  B29B2911/14333 ,  B29B2911/14335 ,  B29B2911/14341 ,  B29B2911/1444 ,  B29B2911/14593 ,  B29C47/00 ,  B29C47/0023 ,  B29K2105/253 ,  B29K2633/18 ,  Y10T428/1397 ,  Y10T428/31935

摘要： In forming containers by distending preforms of nitrile thermoplastic material at molding temperature, the improvement comprising exposing such preforms to low dosage radiation to reduce residual nitrile monomer in the thermoplastic material and then distending the irradiated preforms to cause HCN generated during irradiation to flash off in forming the container. The containers formed have unusually low concentrations of residual nitrile monomer as well as extractable HCN making them especially suitable for packaging foods, beverages, pharmaceuticals and the like. The irradiated preforms from which such containers are made have similarly low residual nitrile monomer levels.

摘要翻译： 在成型温度下通过使腈热塑性材料的预成型件膨胀来形成容器，改进包括将这种预成型件暴露于低剂量辐射以减少热塑性材料中的残留腈单体，然后使照射的预制件膨胀，使得在照射期间产生的HCN在成型 容器 形成的容器具有异常低浓度的残留腈单体以及可萃取的HCN，使其特别适用于包装食品，饮料，药物等。 制造这种容器的照射的预制件具有类似的低残留腈单体含量。

公开(公告)号：US4173445A

公开(公告)日：1979-11-06

申请号：US925375

申请日：1978-07-17

申请人： James M. McKelvey ,  Samuel Steingiser

发明人： James M. McKelvey ,  Samuel Steingiser

IPC分类号： B29B7/00 ,  B29C47/00 ,  B29C47/10 ,  B29C47/38 ,  B29C47/60 ,  B29C47/66 ,  B29C47/76 ,  B29F3/06

CPC分类号： B29C47/766 ,  B29C47/60 ,  B29C47/6018 ,  B29C47/76 ,  B29C47/0009

摘要： In plastics extrusion apparatus including a rotating screw in a cylinder forming a channel receiving solid material and eventually expressing it through a die, the channel comprising a feed zone, a melting and compression zone and a melt pumping zone, the improvement wherein a solids decompression zone is between the feed and the melting and compression zones which has increased unit volume relative to that of the feed zone, with the channel of the melting and compression zone communicating with the feed inlet through the decompression and feed zones such that solids are initially metered producing a starved condition so as to melt at substantially atmospheric pressure without filling the channel of the melting and compression zone until close to its end.

摘要翻译： 在塑料挤压设备中，包括在形成通道的圆柱体中的旋转螺杆，并且最终通过模头表达，该通道包括进料区，熔化和压缩区以及熔体泵送区，其中固体减压区 在进料和熔化和压缩区之间，其相对于进料区具有增加的单位体积，其中熔化和压缩区的通道通过减压和进料区与进料入口连通，使得固体初始计量产生 饥饿状态，以便在基本上大气压下熔化而不填充熔化和压缩区的通道直到接近其末端。