FOAMED THERMOPLASTIC RESIN PRODUCT AND FOAMED SEAL PRODUCT

Japanese Patent JP2014005450

A

To provide a foamed thermoplastic resin product and a seal product, capable of bringing about a sufficient and rapid recovery of depressions.

A foamed thermoplastic resin product is characterized in that its depression recovery ratio defined below at 23°C is 50% or more, its average cell size is 10-200 μm, its apparent density is 0.01-0.20 g/cm³, and its repulsive stress under 50% compression at 23°C is 0.1-3.0 N/cm². A foamed seal product is characterized in that it comprises the foamed thermoplastic resin product (in particular one that includes an adhesive materials layer placed on one or both sides of the foamed thermoplastic resin product is preferred). The depression recovery ratio is defined as a ratio, to the initial thickness, of the thickness of the depression portion obtained by compressing the foamed thermoplastic resin product to its lowest point of the foamed product in the thickness direction by a jig having 90 degrees blade angle and holding it there for 15 seconds, then releasing the compression state, and measuring it at 60 seconds after the compression state release.

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KATO KAZUMICHI
SAITO MAKOTO
HATANAKA TOSHIHIRO
KODAMA KIYOAKI

JP2013109518A

January 16, 2014

May 24, 2013

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NITTO DENKO CORP

C08J9/12; C09K3/10

JPH05295150A	1993-11-09
JPH1135784A	1999-02-09
JP2005097566A	2005-04-14

WO2006080491A1

2006-08-03

Shinki Global IP Patent Corporation

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