Substituted dithiocarbamylurea accelerators

Details Substituted dithiocarbamylurea accelerators Substituted dithiocarbamylurea accelerators

1987-08-06

1989-02-28

Henderson, Christopher

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

544160, 548531, 560 18, 564 40, C07D27912, C07D20746

Patent

active

048087149

ABSTRACT:
Novel substituted dithiocarbamylurea accelerators of the formula R.sup.1 NHC(O)NHSC(S)NR.sup.2 R.sup.3 wherein R is phenyl or substituted phenyl and R.sup.2 and R.sup.3 are alkyl, aryl or aralkyl or together are alkylene, oxydialkalene or thiodialkylene exhibit unexpectedly improved scorch safety when employed as sulfur cure accelerators. In another aspect, this invention relates to accelerator compositions comprising said accelerators and thiuram or benzothiazole sulfenamide accelerators. In yet another aspect, this invention relates to curable compositions comprising such novel accelerators, sulfur and/or a sulfur donor compound and a sulfur curable rubber.

REFERENCES:
patent: 3947511 (1976-03-01), Raasch

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