B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/04 (2006.01) B32B 27/12 (2006.01) C08G 59/12 (2006.01) C08G 59/42 (2006.01) C08J 5/24 (2006.01) C08L 63/00 (2006.01) E04B 1/82 (2006.01)
Patent
CA 2021016
ABSTRACT This invention provides an acoustic vibrational material containing various fibers as the reinforcement material and having the epoxy resin as the matrix resin, wherein the epoxy resin is modified by a polybutadiene base elastomer containing not less than 90 mole percent of 1,2-linked units. The epoxy resin modified with the above polybutadiene elastomer exhibits a maximum value of loss coefficient at the temperature region near the room temperature. This region is much higher than that of the conventional epoxy resin modified with polybutadiene elastomer mainly including 1,4- linked unit. Decrease in elastic modulus of the epoxy resin with increase of temperature is lesser in the epoxy resin of the present invention, whereas larger in the conventional one. Thus compatibility between large internal loss and high elastic modulus is achieved.
Matsuura Seiji
Tokura Kunihiko
Uryu Masaru
Gowling Lafleur Henderson Llp
Sony Corporation
LandOfFree
Acoustic vibrational material from fiber-reinforced... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Acoustic vibrational material from fiber-reinforced..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic vibrational material from fiber-reinforced... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1871582