公开(公告)号：US20070200266A1

公开(公告)日：2007-08-30

申请号：US10592103

申请日：2005-03-03

Applicant: Marcel Elser

Inventor： Marcel Elser

IPC: B29C44/02

CPC classification number: C08G18/6275 ,  C08G18/58 ,  C08J9/0023 ,  C08J9/0028 ,  C08J9/02 ,  C08J9/102 ,  C08J2201/026 ,  C08J2203/02 ,  C08J2203/04 ,  C08J2327/06

Abstract: A method for producing a cross-linked PVC rigid-foam body from a starting mixture containing PVC, an isocyanate or polyisocyanate, an organic anhydride and a chemical expanding agent by: converting the starting mixture into a molded article inside a compacting device under the action of pressure and heat; removing the article from the mold, and; expanding and hardening the obtained molded article in an expanding device while supplying heat and water and/or water vapor whereby forming a cross-linked PVC foam body. The starting mixture contains epoxidized compounds in amounts greater than 3% by weight, preferably greater than 5% by weight, and less than 15% by weight with regard to the starting mixture.

Abstract translation: 一种从含有PVC，异氰酸酯或多异氰酸酯，有机酸酐和化学发泡剂的起始混合物制备交联PVC刚性泡沫体的方法，其特征在于：将起始混合物转化为压实装置内的模塑制品 的压力和热量; 从模具中取出物品; 在获得的模制品在膨胀装置中膨胀和硬化同时供给热和水和/或水蒸汽，由此形成交联的PVC泡沫体。 相对于起始混合物，起始混合物含有大于3重量％，优选大于5重量％，小于15重量％的环氧化合物。