Stretch releasable foams, articles including same and methods for the manufacture thereof
Assignee3M Innovative Properties Company
InventorsJames J. Kobe, James D. LaPerre, Zhiming Zhou
Life of this patent
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Abstract
A foam adhesive article is provided comprising a polymeric foam material having an outer surface, the outer surface of the polymeric foam material having adhesive properties; and fibrous reinforcing material, the fibrous reinforcing material dispersed within the polymeric foam material and imparting stretch release properties to the article. A method for preparing the foam adhesive article is also described comprising (a) melt mixing a foamable polymer composition, and a fiber forming resin to form an expandable extrudable composition; and (b) extruding the expandable extrudable composition through a die to provide the foam adhesive article.
Claims20
A foam adhesive article, comprising:
- A polymeric foam material having an outer surface, the outer surface of the polymeric foam material having adhesive properties;
- and
- Fibrous reinforcing material dispersed throughout the polymeric foam material, the fibrous reinforcing material consisting essentially of fibrous material that is oriented in the machine direction and imparting stretch release properties to the article;
- and
- the foam article having a Shore A hardness of less than about 60, a tensile break strength of at least about 150% of the yield strength of the article, and an elongation at break of greater than about 200%.
Dependencies are inferred from the claim text.