O,O-dialkyldithiophosphoryl-N-hydrocarbylthiophosphoramides
AssigneeThe Firestone Tire & Rubber Company
InventorsEdward L. Kay, Delmar F. Lohr
Life of this patent
Estimating the term…
Abstract
The vulcanization rate of rubber stock compounded for curing is increased by using in the stock for the cure and accelerator of certain O,O-dialkyldithiophosphoryl-N-hydrocarbylthiophosphoramides; the same being, per se, new compositions of matter also useful, inter alia, as lubricating oil additives and for insecticidal purposes.
Claims6
As a composition of matter, an S,S',di-(O,O'-dihydrocarbylthiophosphoryl)-N(hydrocarbyl)phosphoroamidotri thioate of the general structure and Formula:
- ##STR20## wherein R, R' and R" are independently selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, n-butyl isomers, cyclohexyl, octyl, octyl isomers, stearyl and phenyl.
As a composition matter, an S-(O,O'-dihydrocarbylthiophosphoryl)-N,N'-di-(hydrocarbyl)phosphorodiamido dithioate of the general structure and Formula:
- ##STR21## wherein R and R' are independently selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, n-butyl isomers, cyclohexyl, octyl, octyl isomers, stearyl and phenyl.
As a composition of matter, S,S'-di(O,O'-di-isopropylthiophosphoryl)-N-phenyl-phosphoramidotrithioate.
As a composition of matter, S-(O,O-diisopropylthiophosphoryl)-N,N'-(diphenyl)phosphorodiamidodithioate
As a composition of matter S,S'-di(O,O'-di-n-hexylthiophosphoryl)-N-(di-n-propyl)-phosphoramidotrithi oate.
As a composition of matter, S-(O,O'-di-n-hexylthiophosphoryl)-N,N'-(tetra-n-propyl)-phosphorodiamidodi thioate.
Dependencies are inferred from the claim text.