Abstract: The present invention relates to a laminated panel (1) of cork material or cork-based material devoid of any wood material, the panel (1) comprising at least one central layer (2) of cork material or cork-based material, said central layer (2) having a first face and a second face; at least one wear outer layer (4) arranged on said first face of central layer (2); and one coupling member (3) arranged on at least two sides of panel (1), wherein the coupling element (3) is an extension of said central layer (2) of cork material or cork-based material at said sides. In addition, the panel further comprises a base outer layer (5) arranged on the second face of central layer (2). The invention is generally directed to building industry, and particularly it is applicable to flooring.

Abstract: Friedelin is a natural compound with promising proprieties. On its own or with chemical modification it is possible to introduce relevant biological activities, e.g., anti-cancer, anti-aging and agrochemical. Its availability in significant amounts has been a major drawback on its regular use and in the pursuit of different applications. Cork and cork-derived materials (e.g., black condensate) are the most relevant sources of Friedelin in nature (up to 10% in concentration). The present invention reports straight-forward procedures to extract and purify Friedelin from cork and cork-derived materials (e.g., black condensate). It uses solvent extraction and (re)crystallization techniques easy to scale up to an industrial level, with a low solvent and low time consumption, high yields, up to 2.9%, and high purity degrees, up to 96%.