公开(公告)号：US20030124334A1

公开(公告)日：2003-07-03

申请号：US10170706

申请日：2002-06-14

Applicant: JSP CORPORATION

Inventor： Masato Naito ,  Naochika Kogure ,  Daisuke Imanari ,  Noritoshi Nishiyama

IPC: B32B003/26 ,  B29C044/00

CPC classification number: C08J9/149 ,  C08J2201/03 ,  C08J2203/06 ,  C08J2203/12 ,  C08J2203/14 ,  C08J2205/052 ,  C08J2325/06 ,  Y10S264/05 ,  Y10T428/249977

Abstract: A method for production of an extruded, polystyrene-based foam plate wherein a polystyrene-based resin is heated and kneaded together with a blowing agent, a flame retardant and a nucleating agent in an extruder to obtain a foamable molten composition, and the foamable molten composition is extruded through a die attached to an end of the extruder into a lower pressure zone. The blowing agent comprises not smaller than 25% by weight but not greater than 65% by weight, based on the total weight of the blowing agent, of an isobutane-containing saturated hydrocarbon; not smaller than 5% by weight but not greater than 70% by weight, based on the total weight of the blowing agent, of a dimethyl ether-containing ether; not smaller than 5% by weight but not greater than 55% by weight, based on the total weight of the blowing agent, of carbon dioxide; and 0-25% by weight, based on the total weight of the blowing agent, of other blowing agent components.

Abstract translation: 一种挤出的基于聚苯乙烯的泡沫板的制造方法，其中将聚苯乙烯类树脂与挤出机中的发泡剂，阻燃剂和成核剂一起加热和捏合以获得可发泡的熔融组合物，并且将可发泡的熔融 组合物通过连接到挤出机端部的模具挤出成低压区。 发泡剂包含基于发泡剂总重量的不小于25重量％但不大于65重量％的含异丁烷的饱和烃; 不小于5重量％但不大于70重量％，基于发泡剂的总重量;含二甲醚的醚; 不低于5重量％但不大于55重量％，基于发泡剂的总重量;二氧化碳; 和基于发泡剂总重量的0-25重量％的其它发泡剂组分。