| 摘要 |
The invention concerns a solvent-free, polymerizing hotmelt substance free of, or low in monomers, for corrosion- and/or abrasion proofing and/or forming a protective film with barrier properties on a real substrates and molded bodies made of metal, plastic, cellulose materials and/or inorganic materials, in particular for wrapping purposes, and consisting of (a) one or more polymerizing polymers containing hydroxyls with an average molecular weight ( &upbar& Mw) between 1,000 and 500,000 and with a glass transition temperature (Tg)>/=20 DEG C., and/or (b) one or more polymerizing, linear, unbranched and/or unbranched polyesters and/or their copolymers with an average molecular weight ( &upbar& Mw) between 900 and 50,000 and with a glass transition temperature (Tg)>/=-50 DEG C., and/or (c) a polymerizing oligomer bearing ethylene-unsaturated groups of acryl-, methacryl-, ether-, ester-, urethane-, amide-, imide-, epoxy-, siloxane-, phenol-, novolak- and/or mercapto-compounds with an average molecular weight ( &upbar& Mw) between 400 and 10,000, and (d) where called further known additives, which is characterized by containing such components (a), (b) and/or (c) which were functionalized with one or more dimeric and/or oligomeric acrylic acid(s) of the general formula <IMAGE> wherein R=H, -CN, halogen and/or an alkyl group with 1 to 4 C atoms, and m is a number between 1 and 5, and it further concerns a process for the preparation of said substance.
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