Patent · US Expired

Lubricating oil composition containing N-allyl amide graft copolymers

US4519929A · kind A · utility

15Cited by
8References
31Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 19, 1982
Grant dateMay 28, 1985
Priority date—
Expiry dateFeb 19, 2002

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10N2010/04
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Lubricating oil dispersancy is improved by adding to the oil a product made by grafting an N-allyl amide (e.g. N,N-diallyl formamide) to an olefin polymer having a molecular weight of about 500-500,000 (e.g. ethylene/propylene/diene copolymer).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.