Adhesive propylene polymer compositions suitable for coating substrates
AssigneeMontell Technology Company BV
InventorsJames R. Beren, Edward M. Phillips
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Abstract
An adhesive composition suitable for coating onto a substrate, containing a blend of the following components: (a) a propylene polymer; (b) a high melt strength propylene polymer having a branching index of less than 0.9 or a melt tension of 3 to 28 cN; and (c) a modified propylene polymer grafted with an unsaturated compound having a polar group. Also disclosed is a coated article including (a) a primer-coated substrate, and (b) a layer of the composition applied to the primer surface of the primer-coated substrate.
Claims12
A composition suitable for coating metallic or primer-coated polymeric substrates, comprising a blend of the following components, by weight:
- (a) 50 to 80% of a propylene polymer;
- (b) 10 to 30% of a high melt strength propylene polymer having a branching index of less than 0.9 or a melt tension of 3 to 28 cN;
- and
- (c) 3 to 30% of a modified propylene polymer grafted with an unsaturated compound having a polar group,
- wherein the total of (a), (b) and (c) equals 100%.
Dependencies are inferred from the claim text.