申请人:BASF SE
公开号:US20170058074A1
公开(公告)日:2017-03-02
A process of preparing a post-modified polycarbodiimide, the process includes combining a diisocyanate, a moisture scavenger, a monoisocyanate, and a catalyst in a reaction vessel; and heating the reaction vessel to a temperature and a time sufficient to form a capped polycarbodiimide wherein the capped polycarbodiimide has 0.25 wt % or less of free isocyanate groups; and the combining and heating are conducted in the absence of a solvent.