(Meth)acrylates containing urethane groups
AssigneeCiba-Geigy Corporation
InventorsBettina Steinmann, Jean-Pierre Wolf, Adrian Schulthess, Max Hunziker
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Abstract
Novel (meth)acrylates containing urethane groups Novel (meth)acrylates which also contain urethane groups and other polymerizable groups in one and the same molecule and can be polymerized either by means of free radicals and/or cationically are used for the production of coatings, adhesives, photoresists, solder masks or in stereolithography. The mouldings produced therefrom contain a coherent, homogeneous network and have high strength properties, in particular mechanical properties.
Claims7
A (meth)acrylate of the formula I containing urethane groups ##STR31## in which R is a divalent group of the formula ##STR32## R.sub.1 is a cationically polymerizable group or a free-radical-polymerizable group, with the exception of the acrylate and allyl groups,
- R.sub.2 is an aliphatic, cycloaliphatic or aromatic radical,
- R.sub.3 is hydrogen or CH.sub.3,
- R.sub.4 is the radical of an aliphatic, cycloaliphatic or aromatic diglycidyl compound after removal of the diglycidyl radical, or is the radical of a cycloaliphatic diepoxide, and
- R.sub.5 is a cycloaliphatic bridge.
Dependencies are inferred from the claim text.