Patent · US Active

Polyurea compositions and methods of use

US8507617B2 · kind B2 · utility

4Cited by
20References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 18, 2011
Grant dateAug 13, 2013
Priority date—
Expiry dateSep 26, 2031

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G2190/00
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Disclosed are polyurea compositions comprising the reaction products of a polyformal-isocyanate prepolymer and a curing agent comprising an amine. The compositions are useful as sealants in aerospace applications.

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