Patent · US Expired

Halogenated phenyl cyanates

US4782178A · kind A · utility

6Cited by
0References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 13, 1987
Grant dateNov 1, 1988
Priority date—
Expiry dateNov 13, 2007

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G73/0655
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Phenyl cyanates substituted at both ortho positions and further substituted with at least one halo at the meta or para positions are prepared. Then enhance ignition resistance, fire retardance, and toughness of polytriazines when added in varying amounts to polycyanate monomers before cure.

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