RMA crosslinkable compositions and RMA crosslinkable resins for easy to clean coatings

A crosslinkable fatty resin comprising one or more fatty components selected from the group of fatty acids, fatty alcohols, fatty amines, fatty thiols and dimeric fatty acids and one or more reactive components A comprising at least 2 reactive groups which are acidic protons C—H in activated methylene or methine group, wherein fatty resin is modified with the one or more reactive components A having a structure according to formula 1:

• wherein R is hydrogen, an alkyl, or an aryl, and Y and Y′ are identical or different substituent groups selected from alkyl, aralkyl, aryl, or alkoxy, or wherein the —C(═O)—Y and/or —C(═O)—Y′ is replaced by CN or aryl,
• wherein the crosslinkable fatty resin comprises predominantly malonate as the one or more reactive components A, predominantly meaning that more than 50% of the C—H reactive groups in the crosslinkable fatty resin are from malonate,
• wherein the crosslinkable fatty resin comprises the fatty components in an amount of 5 to 40 wt % relative to total weight of the crosslinkable fatty resin and comprises the one or more reactive components A in an amount between 10 and 40 wt % relative to total weight of the crosslinkable fatty resin,
• wherein the fatty components are chemically bonded to the crosslinkable fatty resin and the fatty components comprise fatty chains containing 10-40 carbons, wherein the fatty resin is further characterised by:
• a) a weight average molecular weight (Mw) between 2000 and 15000 dalton,
• b) a hydroxy value (OHV) between 20 and 300 mgKOH/gr,
• c) an acid value below 3 mg KOH/g,
• d) an equivalent weight (EQW) per reactive C—H group between 125 and 300 gr/mol,
• e) a functionality defined as number average number of reactive C—H per molecule between 4 and 12, and
• f) a glass transition temperature (Tg) between 220 and 320K as measured by DSC at heating rate of 10K/min.