Lubricating oil additive

Details Lubricating oil additive Lubricating oil additive

1978-12-28

1980-10-14

Coughlan, Jr., Paul M.

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

C07D40314

Patent

active

042282829

ABSTRACT:
A new class of compositions, tetrahydropyrimidyl-substituted compounds, useful as ashless bases and rust inhibitors, is prepared by reacting a C.sub.3 -to C.sub.5a amine containing a 1,3-diaminopropane group with ethylenediamine tetraacetic acid or nitrilotriacetic acid at a temperature of 150.degree. to 250.degree. C. for 10 to 100 hours.

REFERENCES:
patent: 3235548 (1966-02-01), Pollack et al.
patent: 3488294 (1970-01-01), Annand et al.

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