Process for modification of a solid surface

A process for the modification of a surface of a solid material, comprising the step of:

• contacting the surface with a surface-modifying composition under irradiation with light of a wavelength in the range of 200 to 800 nm optionally in the presence of a photoinitiator, wherein the solid material has surface groups selected from C—OH, Si—OH, C═O and C—O—C groups and wherein the surface-modifying composition comprises at least a hydrosilane and at least one reactive compound (A) other than the hydrosilane, wherein the at least ne reactive compound (A) comprises at least two functional groups selected from (meth)acrylate, (meth)acrylamide, hydroxyl, carboxylic acid, alkene, alkyne and epoxy, and
• wherein the amount of the hydrosilane in the composition ranges between 0.5 and 99 vol %, and wherein the vol % is determined at 20° C. relative to the total of the surface modifying composition,
• wherein the hydrosilane is represented by any of the hydrosilanes according to formula I), V) or III),
• wherein RC═H or methyl,
• wherein Ra is H, optionally substituted C1-30 alkyl, optionally substituted C2-30 alkenyl, optionally substituted C2-30 alkynyl, optionally substituted C6-20 aralkyl, optionally substituted C6-10 aryl, or a polymeric moiety having a molecular weight of about 1000 to about 100,000,
• wherein each of Rb and X is, independently, optionally substituted C1-30 alkyl, optionally substituted C2-30 alkenyl, optionally substituted C2-30 alkynyl, optionally substituted C6-20 aralkyl, optionally substituted C6-10 aryl, or a polymeric moiety having a number average molecular weight of about 1000 to about 100,000,
• wherein the polymeric moiety is selected from the group consisting of hydrocarbon polymers, polyesters, polyamides, polyethers, polyacrylates, polyurethanes, epoxides, polymethacrylates and polysiloxanes, wherein I=2-10, and k=3-6.