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U.S. Department of Energy
Office of Scientific and Technical Information

Carbamate deposit control additives

Patent ·
OSTI ID:6796789
Deposit control additives for internal combustion engines are provided which maintain cleanliness of intake systems without contributing to combustion chamber deposits. The additives are poly(oxyalkylene) carbamates comprising a hydrocarbyloxyterminated poly(Oxyalkylene) chain of 2-5 carbon oxyalkylene units bonded through an oxycarbonyl group to a nitrogen atom of ethylenediamine.
Assignee:
Chevron Research Co
Patent Number(s):
US 4236020
OSTI ID:
6796789
Country of Publication:
United States
Language:
English