Akzo Nobel Coatings International B.v.

Johannes Felker

Dirk Seeger

Igor Shishkov

Julia Krupp

The present invention relates to a two-component putty comprising (1) a base component and (2) a curing component, wherein the base component comprises: &#x2014;a polycarbonate diol having a hydroxyl number in the range of from 50 to 500 mg KOH/g; &#x2014;a further resin component having a hydroxyl number of at least 300 mg KOH/g; and &#x2014;an inorganic filler, wherein the curing component comprises a polyisocyanate, and wherein the amount of the inorganic filler is in the range of from 35 wt % to 60 wt %, based on the total weight of the putty, the putty contains less than 5 wt % of organic solvent, and the viscosity of the putty is in the range of from 30,000 mPa&#xb7;s to 250,000 mPa&#xb7;s. The present invention also relates to a method for coating a substrate by applying such putty and allowing the applied putty to cure. The invention further relates to a coated substrate obtainable by such method and the use of such two-component putty for improving erosion resistance of a substrate.

Two-component putty, method for coating a substrate with such putty, substrates coated with such putty and use for such putty for improving erosion resistance

The present invention relates to a two-component putty comprising (1) a base component and (2) a curing component, wherein the base component comprises: &#x2014;castor oil as resin component; and &#x2014;a further resin component having a hydroxyl number in the range of from 00 to 800 mg KOH/g, wherein the curing component comprises a polyisocyanate, and wherein the two-component putty further comprises hollow microspheres and an organically modified inorganic filler. The present invention also relates to a method for coating a substrate by applying such putty and allowing the applied putty to cure. The invention further relates to a coated substrate obtainable by such method.

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Rastede, Germany

Johannes Felker