Potters Industries Inc.

Pq Silicas UK Limited

Gemma Morea

Alan Reginald Minihan

Gonçalo Rosa Grilo

The present invention is a coating containing approximately 10% glass beads used to protect wood products. Applicant has discovered that the best performance occurs when the concentration of glass beads in the coating ranges from 5 wt % to 10 wt %. A shelf-stable paste is first prepared by combining a solution of modified styrene maleic acid copolymer and a synthetic layered silicate. That paste is then mixed with a binder to form the coating. Preferably, the concentration of glass beads in the paste ranges from 60 wt % to 80 wt %, the concentration of solution of modified styrene maleic acid copolymer ranges from 20 wt % to 25 wt % and the concentration of synthetic layered silicate ranges from 1 wt % to 3 wt %.

Protective coating for wood products and method of making same

A curable liquid composition, such as an alkyd paint or resin, contains a binder curable by oxidative crosslinking, a siccative compound for catalyzing oxidative crosslinking of the binder, and a matting agent. The matting agent is a precipitated silica, with a surface area, measured by BET, of 250 m/g or less, a precipitated metal silicate such as Ca, Mg or Al silicate, or a mixture, and may be amorphous in nature. The siccative compound is a transition metal chelate complex comprising a ligand, such as an iron- or a manganese-based chelate complex. The compositions are capable of oxidative curing, within acceptable times, to form a cured solid, such as a coating, having a matt finish.

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Cheshire, United Kingdom

Gemma Morea