Patent · US Expired

Colored polyester compositions

US5102980A · kind A · utility

34Cited by
8References
39Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 1, 1991
Grant dateApr 7, 1992
Priority date
Expiry dateApr 1, 2011

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G63/688
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Provided are novel polyester compositions containing copper phthalocyanine sulfonamide colorants copolymerized therein. Also provided are amorphous color concentrates, partially-crystalline color concentrates and semi-crystalline color concentrates. These polyester compositions are particularly useful for use as colored packaging materials and for colorants for personal, medical, and home care products where non-extractability of the colorant residue is important.

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