Polyurethane powder coatings with a matt appearance

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

Reexamination Certificate

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Details

C524S589000, C525S440030, C525S452000, C525S934000

Reexamination Certificate

active

07026393

ABSTRACT:
Polyurethane powder coating materials comprising polyureas, polyesters, and crosslinkers, which have less than 15 mol % succinic acid as the polycarboxylic acid component. Matt coatings and coated materials comprising or produced using such polyurethane powder coating materials.

REFERENCES:
patent: 6710136 (2004-03-01), Grenda et al.
patent: 2002/0045717 (2002-04-01), Grenda et al.
patent: 196 30 844 (1998-02-01), None
patent: 100 42 318 (2002-03-01), None
patent: 0 372 958 (1990-06-01), None

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