Title:
固相転移現象を示す結晶性ポリマー、およびその応用
Document Type and Number:
Japanese Patent JP4508109
Kind Code:
B2
Abstract:
A crystalline polymer exhibiting crystal transition in the solid phase state, which satisfies the relationship defined by the formula 150 > ”Htr > 1.6Ttr - 3.5 (1) (wherein ”Htr represents the endotherm (J/g) accompanying crystal transition and Ttr represents the crystal transition temperature (°C)). This crystalline polymer has a weight average molecular weight of 600 thousand or less and a crystal transition temperature (Ttr) of 67°C or below. Since this crystalline polymer has a low phase transition temperature, a high heat of a crystal transition, and a high melting point, the potential utility thereof as a switching element or a thermal storage material used at around normal environment temperatures (20 to 50°C) is high.
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Inventors:
Ryo Konishi
Youichi Okubo
Kenji Fukunaga
Yutomi Tadatoshi
Youichi Okubo
Kenji Fukunaga
Yutomi Tadatoshi
Application Number:
JP2005511394A
Publication Date:
July 21, 2010
Filing Date:
July 07, 2004
Export Citation:
Assignee:
Ube Industries,Ltd.
International Classes:
C08F8/08; C08F36/06; C09K5/06; C09K5/08; H01C7/02; H01H37/32
Domestic Patent References:
| JPH09268208A | 1997-10-14 | |||
| JP2001213917A | 2001-08-07 | |||
| JP2002124172A | 2002-04-26 | |||
| JPS3822230Y1 | ||||
| JPS4960256U | 1974-05-27 |
Foreign References:
| WO2001057889A1 | 2001-08-09 |
Attorney, Agent or Firm:
Ippei Watanabe