High-molecular-weight polymeric material comprising...

Details High-molecular-weight polymeric material comprising... High-molecular-weight polymeric material comprising...

2007-10-09

2007-10-09

Sanders, Kriellion A (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C546S167000, C546S256000, C548S453000, C428S480000, C428S704000

Reexamination Certificate

active

10521651

ABSTRACT:
The present invention relates to high-molecular-weight polymeric material comprising at least one diketopyrrolopyrrole pigment of formula (1) wherein R1, is hydrogen, chlorine, methyl, methoxy, CF3or CN, R2is hydrogen, chlorine, methyl, methoxy, CF3or CN, A is hydrogen, chlorine, methyl, mehtoxy, CF3, CN, unsubstituted or substituted phenyl or a radical of formula (2), (2a) or (2b), wherein R5is hydrogen, chlorine, methyl, methoxy, nitro, CF3or CN and R6is hydrogen, chlorine, methyl, methoxy, nitro, CF3or CN, or R5and R6together with the phenyl ring to which they are bonded form an aryl or a heteroaryl and A1is a radical of formula (2), (2a) or (2b), to the preparation of that material and to the use thereof in colour filters, and to novel diketopyrrolopyrrole pigments.

REFERENCES:
patent: 4579949 (1986-04-01), Rochat et al.
patent: 5738719 (1998-04-01), Wallquist et al.
patent: 0748851 (1996-12-01), None
patent: 02/10288 (2002-02-01), None

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