Aqueous, highly cross-linked two-component polyurethane...

Details Aqueous, highly cross-linked two-component polyurethane... Aqueous, highly cross-linked two-component polyurethane...

2004-04-23

2010-11-02

Cano, Milton I (Department: 1796)

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

C528S060000, C528S085000, C524S591000, C524S839000, C524S840000

Reexamination Certificate

active

07825210

ABSTRACT:
An aqueous highly cross-linked two-component polyurethane coating system is described with reduced hydrophilicity and improved resistance to chemicals which can be obtained by a) producing a binder component based on an aqueous solution or dispersion of low-molecular hydroxyfunctional and/or aminofunctional oligourethanes or polyurethanes and b) by subsequently reacting the binder component a) with a cross-linking component (H) in a ratio of 3:1 to 5:1, wherein water-dispersible polyisocyanates are used as the cross-linking component (H).

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