Title:
VIBRATION-DAMPING MATERIAL
Document Type and Number:
Japanese Patent JPH05170829
Kind Code:
A
Abstract:
PURPOSE:To obtain a vibration-damping material showing vibration-damping properties in a wide temperature range by using a copolymer obtained by copolymerizing a cycloolefin with an alpha-olefin and having a specified Tg and a specified melting point. CONSTITUTION:A vibration-damping material is formed from a cycloolefin copolymer obtained by copolymerizing a cycloolefin (e.g. norbornene) with an alpha-olefin (e.g. ethylene) and having a glass transition temperature Tg of 25 deg.C or below and a melting point of 90 deg.C or below. Although this material can be produced by an arbitrary process, injection molding can be desirably adopted. This material can show excellent vibration-damping properties in a wide temperature range, and can be used effectively in the fields of automobiles, household electric appliances, etc.
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Inventors:
MATSUMOTO JUNICHI
MAEZAWA HIROSHI
MAEZAWA HIROSHI
Application Number:
JP35510391A
Publication Date:
July 09, 1993
Filing Date:
December 20, 1991
Export Citation:
Assignee:
IDEMITSU KOSAN CO
International Classes:
C08F210/02; C08F32/00; C08F210/00; C08F232/08; F16F15/02; (IPC1-7): C08F210/02; C08F232/08; F16F15/02
Attorney, Agent or Firm:
Kihei Watanabe