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US 10,308,843 B2Granted
Hot melt adhesive
AssigneeThe Procter & Gamble Company
InventorWilliam L. Bunnelle
Life of this patent
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Abstract
A hot melt adhesive material and articles made using the hot melt adhesive to assemble structures in an article. The adhesive material typically is manufactured by blending amorphous polymer with a heterophase polymer having crystallinity into an adhesive composition.
Claims10
An adhesive composition comprising:
- (i) about 10 wt. % to about 90 wt. % of a polyolefin copolymer, wherein the polyolefin copolymer comprises propene monomer units and at least 40 wt. % of 1-butene monomer units;
- and
- (ii) about 10 wt. % to about 90 wt. % of a heterophase polyolefin propylene copolymer, wherein the heterophase polyolefin propylene copolymer comprises propene monomer units, amorphous blocks, and crystalline blocks.
Dependencies are inferred from the claim text.