Uv-curable film compositions with improved scratch resistance
AssigneeSabic Innovative Plastics IP B.V.
InventorsKwan Hongladarom, Jean-Francois Morizur, Paul Dean Sybert
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Abstract
Thin walled products having good scratch resistance are disclosed, as are processes for making such products (e.g. films, sheets, and thin walled articles). The product includes a thin layer formed from (A) a cross-linkable polycarbonate resin having endcaps derived from a monohydroxybenzophenone; and (B) if desired, a base polymeric resin. When exposed to ultraviolet light, crosslinking will occur in the layer with the cross-linkable polycarbonate resin, enhancing the scratch resistance properties of the thin layer and the overall product.
Claims20
A thin walled product having improved scratch resistance, comprising:
- a crosslinked layer formed from a photoactive additive that has been exposed to ultraviolet light, the photoactive additive containing a photoactive group derived from a monohydroxybenzophenone.
A process for making a thin walled product having improved scratch resistance, comprising:
- extruding a film layer comprising a photoactive additive, wherein the additive is a cross-linkable polycarbonate resin containing a photoactive group derived from a monohydroxybenzophenone;
- and
- exposing the film layer to ultraviolet light to induce crosslinking in the film layer and obtain the thin walled product having improved scratch resistance.
Dependencies are inferred from the claim text.