公开(公告)号：US20160039593A1

公开(公告)日：2016-02-11

申请号：US14773896

申请日：2014-03-14

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Shrikant Dhodapkar ,  Remi Trottier ,  Santosh S. Bawiskar ,  Kyle D. Anderson

IPC: B65D81/26 ,  C08K3/36 ,  C08J7/06 ,  B65B1/04 ,  B65B7/02

CPC classification number: B65D81/264 ,  B65B1/04 ,  B65B7/02 ,  C08J3/124 ,  C08J3/128 ,  C08J7/06 ,  C08J2323/16 ,  C08K3/36

Abstract: The present disclosure provides a packaging process and the resultant package produced from the process. The process includes introducing, into a mixing device, pellets composed of ethylene/propylene/diene polymer (EPDM). The EPDM comprises greater than 60 wt % units derived from ethylene. The pellets have a residual moisture content from 500 ppm to 2500 ppm. The process includes adding a silica-based powder to the mixing device and coating at least a portion of the pellets with the silica-based powder. The process includes sealing a bulk amount of the coated pellets in a bag made of a flexible polymeric film The process includes absorbing, with the silica-based powder, the residual moisture from the pellets, and preventing moisture condensation in the bag interior for a period from 7 days after the sealing step to 1000 days after the sealing step.

Abstract translation: 本公开提供了一种包装方法和由该方法生产的所得包装。 该方法包括将由乙烯/丙烯/二烯聚合物（EPDM）组成的颗粒引入到混合装置中。 EPDM包含大于60重量％的衍生自乙烯的单元。 颗粒的残留水分含量为500ppm至2500ppm。 该方法包括向混合装置中加入二氧化硅基粉末，并用二氧化硅基粉末涂覆至少一部分颗粒。 该方法包括将大量的涂覆颗粒密封在由柔性聚合物膜制成的袋中。该方法包括用二氧化硅基粉末吸收来自颗粒的残留水分，并防止袋内部的水分冷凝一段时间 从密封步骤后7天到密封步骤后1000天。