Patent classifications
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GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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TECHNICAL SUBJECTS COVERED BY FORMER USPC
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TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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Stock material or miscellaneous articles
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Y10T428/249921
Web or sheet containing structurally defined element or component
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Y10T428/249953
Composite having voids in a component [e.g., porous, cellular, etc.]
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Y10T428/249976
Voids specified as closed
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Y10T428/249976

FOAM SHEET AND ADHESIVE TAPE
20260117095 · 2026-04-30 · ·

The foam sheet of the present invention has a stress relaxation ratio of 23% or more and a 25% compressive strength of 1,000 kPa or less. The pressure-sensitive adhesive tape of the present invention includes the foam sheet of the present invention and a pressure-sensitive adhesive material provided on at least one surface of its multilayered foam sheet. The present invention can provide a foam sheet that can increase a permanent strain and a pressure-sensitive adhesive tape including the foam sheet.