Abstract: A process of recycling a bituminous product or a bituminous membrane product contacting reinforcement layers. Collecting the waste bituminous products and sorting it in a series of waste bituminous product batches. At least one grinding step of each batch in each series forms a fine ground batch. The fine ground batch is introduced into a recycling unit wherein the fine ground batch is heated and melted and collected as a melted product. The melted product is fed into a mixing tank having a predetermined volume containing fresh carrier.

Abstract: An object of the instant application is to provide a process of recycling a bituminous product such as a waste bituminous membrane product optionally containing reinforcement layers comprising grinding and melting steps.

Abstract: The present invention concerns a protective membrane composition comprising: A bio-based composition containing: a) a refined pyrolytic lignin having a viscosity ?3000 mPa·s at 180° C., measured according to the ASTM D2171 standard method, and a bituminous composition, or b) said refined pyrolytic lignin, and at least one oil chosen from the group consisting of vegetable oils, petrochemical oils, and mixtures thereof, where the bio-based composition is substantially free of any additional bituminous composition content, at least one polymer forming a polymeric matrix, wherein said bio-based composition is homogenously dispersed, and the protective membrane composition having a Newtonian viscosity comprised between 1500 and 30000 mPa·s, preferably between 3000 and 15000 mPa·s, determined according to the ASTM D2171 standard method.

Abstract: A homogeneous waterproofing membrane composition containing active membrane compounds comprising plasticized polyvinyl butyral (PVB), polymer modified bitumen, where the polymer forms a polymeric matrix, wherein bitumen and plasticized PVB are retained.

Abstract: A waterproofing membrane composition comprising PVB, polymer modified bitumen, a compatibilizing agent selected from the group consisting of a succinate mixed ester of benzyl and of branched nonyl or decyl, a bis(ethoxylated alkyl) succinate, a composition comprising aliphatic polycarboxylic acid esters of formula R?—X—[O—C(O)—R]n, or a mixture thereof.