It has been discovered that certain monofunctional thiuram compounds can be synthesized at low cost and utilized as vulcanization accelerators which provide excellent cure rates without causing a high level of scorch. The use of these monofunctional thiuram compounds as vulcanization accelerators also result in cured rubber compositions that exhibit reduced compression set, improved age hardening characteristics, and degradation resistant crosslinks. These monofunctional thiuram compounds are of the structural formula:wherein R1 and R2 can be the same or different and represent organyl radicals, wherein R1 and R2 contain a total of at least 8 carbon atoms, and wherein R1 and R2 can join together to form a cyclic structure, and wherein R3 represents an organyl radical containing at least 6 carbon atoms.
ACCELERATOR FOR THE VULCANIZATION OF RUBBERY POLYMERS
2021-08-26
Patent
Electronic Resource
English
Elastomeric composition and vulcanization accelerator used therein
European Patent Office | 2021
|ELASTOMERIC COMPOSITION AND VULCANIZATION ACCELERATOR USED THEREIN
European Patent Office | 2021
|