Patent ID: 11914293
Assignee: FLINT GROUP GERMANY GMBH
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC G  C | IPC C  G

Claim 13:
14. A radiation-curable mixture for generating relief structures, comprising
a) a functionalized, part-hydrolyzed polyvinyl acetate as component A, comprising (i) vinyl alcohol units, (ii) vinyl acetate units, and (iii) vinyl acrylate units, where the vinyl acrylate units, which can be substituted, have the general structure, wherein the amount of vinyl acrylate units (iii) in the functionalized, part-hydrolyzed polyvinyl acetate a), based on all the units (i), (ii), and (iii), is 0.1 to <3 mol %;
where R is chosen from:
a hydrogen,
a linear aliphatic or heteroaliphatic radical having 1 to 12 carbon atoms,
a branched aliphatic having 3 to 12 carbon atoms,
a heteroaliphatic radical having 2 to 12 carbon atoms,
a cycloaliphatic, heterocyclic having 3 to 12 carbon atoms or
an aromatic radical having 4 to 12 carbon atoms,

b) an initiator or initiator system, as component B,
c) an ethylenically unsaturated compound, as component C,

d) an additive capable of hydrogen bonding, as component D, wherein said additive forms hydrogen bonds with the hydrolyzed polyvinyl acetate and wherein component D is present in an amount of 1 to 30 wt %, based on all components within the radiation-curable mixture, said component D being selected from the group consisting of alcohols, ketones, aldehydes, amines, amides, amino acids, carboxylic acids, thioethers, thiols, urethanes, esters, lactones, lactams, and combinations thereof.