Patent · US Active

Heat-stable encapsulated pigments

US8461229B2 · kind B2 · utility

1Cited by

14References

7Claims

0Family size

Assignee

BASF SE

Inventors

Gloria RUIZ GOMEZ · Mussidan, FR
Thomas Ruch · Delémont, CH
Christine Price · Riehen, CH

Key dates

Filing date	Oct 15, 2007
Grant date	Jun 11, 2013
Priority date	—
Expiry date	Apr 20, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B17/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Engineering plastics, especially polyamide, are coloured with improved fastness and stability properties using pigment compositions comprising an organic pigment wholly overlaid with a crosslinked (meth)acrylic resin or copolymer thereof. Preference is given to the use of diketopyrrolopyrrole, azo, pteridine, isoindoline and isoindolinone pigments. Processes for the preparation of the pigment compositions are also claimed.

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