Title:
水添共重合体及びその組成物
Document Type and Number:
Japanese Patent JP4079942
Kind Code:
B2
Abstract:
A hydrogenated copolymer obtained by hydrogenating an unhydrogenated copolymer comprising conjugated diene monomer units and vinyl aromatic monomer units, the hydrogenated copolymer containing at least one hydrogenated copolymer block (B) which is obtained by hydrogenating an unhydrogenated random copolymer block comprised of conjugated diene monomer units and vinyl aromatic monomer units, wherein the hydrogenated copolymer has the following characteristics: the hydrogenated copolymer has a content of the vinyl aromatic monomer units of from more than 40% by weight to less than 95% by weight; at least one peak of loss tangent (tan δ) is observed at −10 to 80° C. in a dynamic viscoelastic spectrum obtained with respect to the hydrogenated copolymer; and substantially no crystallization peak ascribed to the copolymer block (B) is observed at −20 to 80° C. in a differential scanning calorimetry (DSC) chart obtained with respect to the hydrogenated copolymer.
Inventors:
Masahiro Sasakawa
Toshinori Shiraki
Shigeki Takayama
Shigeru Sasaki
Katsumi Suzuki
Hisasue Takahiro
Kazuo Morito
Toshinori Shiraki
Shigeki Takayama
Shigeru Sasaki
Katsumi Suzuki
Hisasue Takahiro
Kazuo Morito
Application Number:
JP2004517295A
Publication Date:
April 23, 2008
Filing Date:
June 26, 2003
Export Citation:
Assignee:
Asahi Kasei Chemicals Corporation
International Classes:
C08F8/04; C08F8/00; C08L53/02; C08L95/00; C08L101/00; C09J153/02
Domestic Patent References:
| JP5093125A | ||||
| JP7118336A | ||||
| JP5118335A | ||||
| JP5271324A | ||||
| JP8127623A |
Foreign References:
| WO2003035705A1 |
Attorney, Agent or Firm:
Hideo Takei
Takeshi Shimizu
Joi Ito
Yoshio Narui
Takeshi Shimizu
Joi Ito
Yoshio Narui