Title:
HIGHLY DAMPING MATERIAL COMPOSITION
Document Type and Number:
Japanese Patent JP3664212
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a highly damping material composition not only developing a high loss tangent peak value but also having a slight change with time, optionally suitable for a use environment at a room temperature by including a specific polymer, a damping imparting agent and an acidic organic compound.
SOLUTION: This composition comprises (A) a base polymer containing a basic polar side chain, (B) preferably a damping imparting agent {e.g. pentaerythrityl-tetrakis[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate]} being a hindered phenol-based compound, (C) an acidic organic compound and (D) optionally a filler, an amorphous resin, a colorant, a brightener, a flame-retardant, a blowing agent, etc. A (meth)acrylic polymer, an ethylene-acrylic copolymer, a polyvinyl acetate, its copolymer, etc., are preferably used as the component A. The component C is preferably naphthenic acid or a vegetable-based organic acid.
Inventors:
Kurehase
Takeshi Nomura
Toshiyuki Mihara
Kazunobu Hashimoto
Takeshi Nomura
Toshiyuki Mihara
Kazunobu Hashimoto
Application Number:
JP22001598A
Publication Date:
June 22, 2005
Filing Date:
August 04, 1998
Export Citation:
Assignee:
Tokai Rubber Industry Co., Ltd.
International Classes:
F16F15/08; C08K5/13; C08K5/3492; C08L23/08; C08L31/04; C08L33/00; C08L33/04; C08L57/10; C08L101/00; (IPC1-7): C08L57/10; C08K5/13; C08K5/3492; C08L23/08; C08L31/04; C08L33/04; F16F15/08
Domestic Patent References:
| JP9241432A | ||||
| JP63139931A |
Attorney, Agent or Firm:
Noboru Ueno
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