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
2011-05-24
2011-05-24
Yoon, Tae H (Department: 1762)
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...
C523S351000, C528S026000, C528S307000
Reexamination Certificate
active
07947777
ABSTRACT:
The invention relates to polyesters which contain carboxy groups and which are used as dispersing agents for pigment concentrates for the colouring of thermoplastics, and to a process for their preparation. The invention further relates to the use of the polyesters as dispersing agents, and also to masterbatches which comprise pigments, thermoplastics and the polyesters.
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“International Search Report for Application No. PCT/EP2005/002515”, 4 Pages, 2006.
Bubat Alfred
Garlinsky Joerg
Gertzen Barbel
Haubennestel Karlheinz
Krappe Udo
BYK-Chemie GmbH
Schwegman Lundberg & Woessner, P.A.
Yoon Tae H
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