Patent ID: 7714038

Claim:
A process for preparing a (meth)acrylated polyolefin wax, said (meth)acrylated polyolefin wax comprising as monomer units: from 75 to 99.9 mol % of at least one olefin without a further functional group, from 0.1 to 15 mol % of at least one alkenyloxyalkyl (meth)acrylate, at least one allyloxyalkyl (meth)acrylate, or a combination thereof, and from 0 to 25 mol % of at least one monomer having at least one functional group, or from 75 to 99.9 mol % of at least one olefin without a further functional group, and from 0.1 to 25 mol % of at least one (meth)acryloyloxyalkyl (meth)acrylate, at least one (meth)acryloyloxyalkyl (meth)acrylamide, or a combination thereof, and from 0 to 25 mol % of at least one monomer having at least one functional group, or from 75 to 99.9 mol % of at least one olefin without a further functional group, from 0.1 to 15 mol % of at least one alkenyloxyalkyl (meth)acrylate, at least one allyloxyalkyl (meth)acrylate, or a combination thereof, from 0. 1 to 25 mol % of at least one (meth)acryloyloxyalkyl (meth)acrylate, at least one (meth)acryloyloxyalkyl (meth)acrylamide, or a combination thereof, and from 0 to 25 mol % of at least one monomer having at least one functional group, in each case in polymerized form, and said process comprising: copolymerizing said at least one olefin without a further functional group, at least one hydroxyalkyl alkenyl ether, at least one hydroxyalkyl allyl ether, or a combination thereof, and optionally said at least one monomer having at least one functional group; or said at least one olefin without a further functional group, at least one hydroxyalkyl (meth)acrylate, at least one hydroxyalkyl (meth)acrylamide, or a combination thereof, and optionally at least one monomer having at least one functional group; or said at least one olefin without a further functional group, at least one hydroxyalkyl alkenyl ether, at least one hydroxyalkyl allyl ether, or a combination thereof, at least one hydroxyalkyl (meth)acrylate, at least one hydroxyalkyl (meth)acrylamide, or a combination thereof, and optionally at least one monomer having at least one functional group; to obtain a polyolefin wax containing pendent hydroxy groups; and: a) esterifying 10 to 80% of the hydroxy groups of said polyyolefin wax obtained from said copolymerizing with (meth)acrylic acid in the presence of at least one enzyme, b) transesterfying 10 to 80% of the hydroxy groups of said polyolefin wax obtained from said copolymerizing with (meth)acrylic ester in the presence of at least one enzyme, or c) a combination thereof, wherein said at least one monomer having at least one functional group is a different monomer than said at least one olefin without a further functional group, said at least one alkenyloxyalkyl (meth)acrylate, and said at least one allyloxyalkyl (meth)acrylate.