Patent · US Expired

Oxyalkylated polyamidoamines and their preparation

US4546151A · kind A · utility

5Cited by

5References

5Claims

0Family size

Assignee

BASF SE

Inventors

Richard Baur · Mutterstadt, DE
Knut Oppenlander · Ludwigshafen, DE
Rainer Strickler · Heidelberg, DE
Klaus Barthold · Mannheim, DE

Key dates

Filing date	Jan 6, 1984
Grant date	Oct 8, 1985
Priority date	—
Expiry date	Jan 6, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G69/40
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Oxyalkylated polyamidoamines are obtained by reacting a polyamine with caprolactam and oxyalkylating the product with alkylene oxides, and are used for rapidly dewatering crude oil.

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