Acoustic vibrational material of fiber reinforcement with epoxy

Details Acoustic vibrational material of fiber reinforcement with epoxy Acoustic vibrational material of fiber reinforcement with epoxy

1995-05-26

2000-03-14

Sellers, Robert E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

181169, 523467, 523468, 525118, 525119, 525122, 525529, 525531, C08K 702, C08K 714, C08L 6300, G10K 1300

Patent

active

06037411&

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. Thus compatibility between large internal loss and high elastic modulus is achieved.

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