Patent ID: 6747122
Filing Date: 2004-06-08
Classification: C07C,C08G

Abstract:
A process for the preparation of polymeric sulfur compounds of the formula wherein the substituents R1 and R2 are identical or different and represent hydrogen or methyl, n and m denote integers in the range from 2 to 12 and x denotes an integer in the range from 2 to 500, comprising the step of reacting (methyl)cyclopentadiene with sulfur and hydrogen sulfide at 100Â° to 180Â° C. in the presence of a catalyst, the molar ratio of sulfur to hydrogen sulfide being 1:0.1 to 1:5 and the molar ratio of (methyl)cyclopentadiene to sulfur being 1:1 to 1:9.