Two-component thermally conductive composition of silylated polymar

A thermally-conductive two-component composition comprising:

• a composition (A) comprising a silylated polymer, and
• a composition (B) comprising at least 1% by weight of a filler (C) relative to the total weight of the composition (B), the filler (C) providing at least 0.0025% by weight of moisture relative to the total weight of composition (B),
• wherein composition (A) and/or composition (B) also comprise at least one thermally-conductive filler, and
• composition (A) and/or composition (B), also comprise:
• a rheological agent (r1) chosen from amide waxes and/or
• rheological agent (r2) comprising:
• from 1% to 40% by weight of a bis-urea (a) obtained by reaction of a primary aliphatic amine with a diisocyanate with a molar mass of less than 500 g/mol, relative to the total weight of the rheological agent (r2), and
• from 60% to 99% by weight of a plasticizer (b) chosen from alkyl phthalates, pentaerythritol tetravalerate, alkylsulfonic acid esters of phenol, diisononyl 1,2-cyclohexanedicarboxylate, 3,3′-[methylenebis(oxymethylene)]bis[heptane], dioctyl carbonate and mixtures thereof, relative to the total weight of the rheological agent (r2),
• said rheological agent (r2) being in the form of a suspension of solid particles of the bis-urea (a) in a continuous phase of the plasticizer (b).