Patent · US Expired

Elastomers prepared from N-(polyoxyalkyl)-N-(alkyl)amines

US4902768A · kind A · utility

20Cited by
78References
26Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 31, 1988
Grant dateFeb 20, 1990
Priority date—
Expiry dateMar 31, 2008

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G2120/00
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

N-(polyoxyalkyl)-N-(alkyl)amines are reacted with isocyanates and chain extenders to form polyureas and/or polyurethane-urea elastomers.

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