SYNTACTIC POLYURETHANE ELASTOMERS BASED ON LOW UNSATURATION POLYOLS FOR USE IN SUBSEA PIPELINE INSULATION

摘要

Syntactic polyurethane elastomers are made using a non-mercury catalyst. The elastomer is made from a reaction mixture containing a polyether polyol having a low amount of terminal unsaturation, a chain extender, a polyisocyanate and microspheres. The elastomer adheres well to itself, which makes it very useful as thermal insulation for pipelines and other structures that have a complex geometry.