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US 4,360,638 AGranted
Pressure sensitive hot melt adhesive
AssigneeRohm and Haas Company
InventorBenjamin Bartman
Life of this patent
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Abstract
This invention is directed to compositions useful as ionomeric hot melt pressure sensitive adhesive compositions. These compositions comprise a polymer containing carboxylic acid, a miscible metal salt, and an o-methoxy-substituted aryl acid. These compositions display low melt viscosity, simplifyingapplication, as well as improved adhesive properties, especially shear resistance.
Claims14
A composition comprising
- (a) an organic polymer containing at least one carboxylic acid group per polymer molecule,
- (b) a miscible metal salt in a ratio of at least 10.sup.-3 moles of metal salt to moles of polymer carboxylic acid,
- (c) 10.sup.-2 to 20% by weight, based on organic polymer, of an o-methoxy aryl acid.
Dependencies are inferred from the claim text.