Composition based on an aqueous dispersion of an addition polymer
AssigneeDSM Resins B.V.
InventorsDick A. Pons, Johannes B. Van Hout, Waltherus J. Sep
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Abstract
The invention relates to a composition based on an aqueous dispersion of an addition polymer of one or more olefinically unsaturated monomers, emulsion stabilizers and/or emulsifiers and a silicon compound. The addition polymer comprises monomer units containing acid groups and the silicon compound used is an epoxysilane with the formula ##STR1## where R=epoxyalkyl (C.sub.1 -C.sub.4), R.sup.1 =alkyl (C.sub.1 -C.sub.4) or phenyl, R.sup.2 =alkoxy (C.sub.1 -C.sub.4), alkyl (C.sub.1 -C.sub.4) or phenyl, R.sup.3 and R.sup.4 =alkoxy (C.sub.1 -C.sub.4) or OH The compositon can be applied in adhesives and coatings.
Claims5
An adhesive composition based on an aqueous dispersion of a styrene-acrylate polymer and a silicon compound, said polymer consisting of between 4% by weight and 8% by weight monomer units containing acid groups, and said silicon compound being an epoxysilane having the formula:
- ##STR4## wherein in said formula:
- R is epoxy alkyl (C.sub.1 -C.sub.4),
- R.sup.1 is alkyl (C.sub.1 -C.sub.4) or phenyl,
- R.sup.2 is alkoxy (C.sub.1 -C.sub.4), alkyl (C.sub.1 -C.sub.4) or phenyl,
- R.sup.3 and R.sup.4 are alkoxy (C.sub.1 -C.sub.4) or OH.
Dependencies are inferred from the claim text.