High performance water-based primer

Details High performance water-based primer High performance water-based primer

2007-05-15

2007-05-15

Harlan, Robert D. (Department: 1713)

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...

C524S440000, C524S441000, C524S501000, C524S589000, C524S591000

Reexamination Certificate

active

10805769

ABSTRACT:
The present invention relates to an aqueous primer composition for use in manufacturing flexographic printing plates. The aqueous primer composition comprises a polyurethane, a copolymer, a layered silicate, and optionally a surfactant and/or a dye or pigment. The use of the layered silicate as a filler in the primer composition produces an improved primer composition with a stronger water/solvent resistance and less delamination.

REFERENCES:
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patent: 3036913 (1962-05-01), Metuchen
patent: 5175076 (1992-12-01), Ishikawa et al.
patent: 5187044 (1993-02-01), Prioleau et al.
patent: 6106950 (2000-08-01), Searle et al.
patent: 6410635 (2002-06-01), Kaylo et al.
patent: 6451896 (2002-09-01), Wandelmaier et al.
patent: 6551759 (2003-04-01), Daems et al.

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