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Title:
FOAM BODY, POLYOLEFIN-BASED FOAM SHEET AND COMPLEX
Document Type and Number:
WIPO Patent Application WO/2018/143411
Kind Code:
A1
Abstract:
A foam body of the first invention of the present application is constituted of a 4-methyl-1-pentene-based polymer. The maximum loss tangent value (tanδ) of dynamic viscoelasticity of the foam body, which is obtained from the dynamic viscoelasticity measurement conducted under the condition of temperature increase rate of 4oC/min, frequency of 1.59 Hz, and distortion of 0.1% is reached at least at one temperature within the range of 10 to 100oC, and the maximum loss tangent value is 0.5 to 3.5. A polyolefin-based foam sheet of the second invention of the present application is constituted of a 4-methyl-1-pentene-based polymer. In hardness measurement conducted in accordance with JIS K6253 at 23oC, when Shore A hardness of at least one surface of the polyolefin-based foam sheet immediately after the measurement is HS0, and Shore A hardness in 15 seconds after the measurement is HS1, ΔHS, which is (HS0 – HS1), is 30 to 60. A complex of the third invention of the present application comprises a foam body constituted of a 4-methyl-1-pentene-based polymer, and a member that is bonded to the foam body and that is different from the foam body.

Inventors:
MATAYOSHI Tomoya (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
WATANABE Takayuki (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
ERIGUCHI Michio (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
NOMA Satoshi (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
Application Number:
JP2018/003610
Publication Date:
August 09, 2018
Filing Date:
February 02, 2018
Export Citation:
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Assignee:
MITSUI CHEMICALS TOHCELLO, INC. (7 Kandamitoshiro-cho, Chiyoda-ku Tokyo, 85, 〒1018485, JP)
International Classes:
C08J9/04
Domestic Patent References:
WO2001053369A12001-07-26
WO2001027124A12001-04-19
WO2011055803A12011-05-12
Foreign References:
JPS62256836A1987-11-09
JP2008533276A2008-08-21
JP2007529615A2007-10-25
JP2016132692A2016-07-25
JP2000290417A2000-10-17
JP2003100265A2003-04-04
JP2005145999A2005-06-09
JP2011228056A2011-11-10
JP2014084341A2014-05-12
JPH03193796A1991-08-23
JPH0241303A1990-02-09
JP2017017820A2017-01-19
JP2017219449A2017-12-14
Attorney, Agent or Firm:
HAYAMI Shinji (KDX Gotanda Bldg. 9F, 9-2 Nishi-Gotanda 7-chome, Shinagawa-k, Tokyo 31, 〒1410031, JP)
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