Title:
IMPACT ABSORPTION SHEET AND DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2018/203537
Kind Code:
A1
Abstract:
A purpose of the present invention is to provide an impact absorption sheet that has high impact resistance and also exhibits excellent resistance to sebum. Another purpose of the present invention is to provide a double-sided pressure-sensitive adhesive sheet that comprises said impact absorption sheet. The present invention pertains to an impact absorption sheet having an impact absorption layer, wherein the impact absorption layer has a maximum loss tangent (tan δ) value of at least 0.7 in a frequency range of 1.0×103-1.0×106.5 Hz at 23°C, and a crystallinity degree of at least 2%.
Inventors:
HIRATA TOSHIAKI (JP)
IWAI YUKI (JP)
UCHIDA NORIYUKI (JP)
IWAI YUKI (JP)
UCHIDA NORIYUKI (JP)
Application Number:
PCT/JP2018/017272
Publication Date:
November 08, 2018
Filing Date:
April 27, 2018
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
B32B7/02; B32B27/32; C08J5/18; C09J201/00
Domestic Patent References:
| WO2016093133A1 | 2016-06-16 | |||
| WO2014098195A1 | 2014-06-26 |
Foreign References:
| JP2012144668A | 2012-08-02 | |||
| JP2011157479A | 2011-08-18 | |||
| JP2002155249A | 2002-05-28 | |||
| JPH0339524B2 | 1991-06-14 | |||
| JP2002188061A | 2002-07-05 |
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
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