| abstract |
Polyalkylene polysulfides, comprising chains of the formula I n n n R and R′ are identical or different and are hydrogen or alkyl having from 1 to 4 carbon atoms or COR″, where n R″ is hydrogen or alkyl having from 1 to 4 carbon atoms, n x is a number whose average is from 2 to 20, and n n is a number>10. n A process is moreover disclosed for preparing polyalkylene polysulfides by reacting at least one carbonyl compound of the formula II n n n R and R′ are as defined above, n with sulfur and hydrogen sulfide in the presence of a basic catalyst. |