Title:
HIGHLY DAMPING MATERIAL COMPOSITION
Document Type and Number:
Japanese Patent JP3664209
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a highly damping material composition providing highly damping characteristics and slight change with time, useful as a sound barrier of an acoustic room, etc.
SOLUTION: An acrylic rubber or an ethylene-methacrylate copolymer being a basic base polymer is mixed with a damping supplying agent such as an isocyanurate-based compound, a phosphite-based compound, etc., subjected to a fixed processing and molding treatment to give a material. The surface layer of the material is subjected to a surface treatment with a silane coupling agent to form a crystallization control layer. The obtained highly damping material composition is completely blocked from an open air by the crystallization control layer on the surface layer and can develop high tan δ for a long period of time.
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Inventors:
Toshiyuki Mihara
Takeshi Nomura
Kurehase
Kazunobu Hashimoto
Takeshi Nomura
Kurehase
Kazunobu Hashimoto
Application Number:
JP21736498A
Publication Date:
June 22, 2005
Filing Date:
July 31, 1998
Export Citation:
Assignee:
Tokai Rubber Industry Co., Ltd.
International Classes:
F16F15/08; C08L23/08; C08L31/04; C08L33/04; C08L57/10; C08L101/02; (IPC1-7): C08L57/10; C08L23/08; C08L31/04; C08L33/04; F16F15/08
Domestic Patent References:
| JP8073634A | ||||
| JP11042743A | ||||
| JP3217435A |
Attorney, Agent or Firm:
Noboru Ueno
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