Patent ID: 7160961

Claim:
A process for the melt impregnation or melt coating of components, absorbent materials or primed and unprimed substrates comprising (i) melting a hot-melt resin, (ii) applying the resultant resin melt onto and into the components, absorbent materials or primed or unprimed substrates, (iii) curing the applied resin melt by heat and/or actinic radiation, wherein the hot-melt resin comprises A) at least one solid unsaturated polyester and B) at least one oligomeric and/or polymeric crosslinking agent which is copolymerizable with said polyester and which in respect of the oligomeric and/or polymeric main chain comprises at least one terminal and/or pendant isoprenyl group, wherein at least one of the unsaturated polyesters (A) has at least one structural unit of the general formula I and/or at least one structural unit of the general formula II in which the index n is an integer from 1 to 10, wherein component (A) is different than component (B), wherein the application (ii) takes place by placing at least one shaped part comprising the hot-melt resin and adapted in its shape to the shape of the component, absorbent material or primed and unprimed substrate to be coated onto the component, absorbent material or primed and unprimed substrate, and melting the shaped part, or by dipping, hot-dipping, dip-rolling, flooding, casting, vaccuum impregnation, vacuum pressure impregnation or trickling.