公开(公告)号：US3974240A

公开(公告)日：1976-08-10

申请号：US524502

申请日：1974-11-18

申请人： Jan Bock ,  Robert D. Lundberg ,  Robert R. Phillips ,  Henry S. Makowski

发明人： Jan Bock ,  Robert D. Lundberg ,  Robert R. Phillips ,  Henry S. Makowski

IPC分类号： C08L23/32 ,  C08L23/16 ,  C08L23/06 ,  C08L23/12

CPC分类号： C08L23/32

摘要： This invention relates to processable ionic elastomer compositions having improved compression set properties, especially at elevated temperatures. In this invention an intractable ionic elastomer, for example, a sulfonated elastomer is blended with from 10 to 70 parts per hundred of a crystalline polyolefin to yield novel compositions having the above properties. Preferably the ionic elastomer is a sulfonated ethylene propylene terpolymer having from about 0.2 to 20 mole percent sulfonate groups, at least 95% of which are combined with counterions selected from the group consisting of Groups IA, IIA, IB, and IIB of the Periodic Table of Elements, aluminum, antimony, lead, and mixtures thereof. The sulfonated polymer is combined with said counterions by neutralization of a polysulfonic acid precurser with a basic material in which the desired counterion is present as the cation thereof. The anion of said basic material is preferably selected from the group consisting of oxide, hydroxide, and lower alkanoates, for example, acetate, formate, and propionate.

摘要翻译： 本发明涉及具有改进的压缩变形特性的可加工的离子弹性体组合物，特别是在高温下。 在本发明中，难溶性离子弹性体，例如磺化弹性体与每100份结晶聚烯烃共混10至70份，得到具有上述性能的新型组合物。 优选地，离子弹性体是具有约0.2至20摩尔％磺酸盐基团的磺化乙烯丙烯三元共聚物，其至少95％与选自元素周期表IA，IIA，IB和IIB族的抗衡离子组合 元素，铝，锑，铅及其混合物。 将磺化聚合物与所述抗衡离子组合，通过用其中存在所需抗衡离子作为其阳离子的碱性材料中和多磺酸前体。 所述碱性物质的阴离子优选选自氧化物，氢氧化物和低级链烷酸酯，例如乙酸盐，甲酸盐和丙酸盐。