Energy conversion composition
AssigneeShishiai-Kabushikigaisha
InventorsYasuyuki Ohira, Mitsuo Hori
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Abstract
The present invention provides an energy conversion composition which has an excellent capability of absorbing and damping energy such as dynamic, thermal, or electric energy. The composition can be made into a very thin and small but excellent damping product. The energy conversion composition is characterized in that its base material contains a moment activator which can increase the amount of dipole moments in the base material. The energy conversion composition can be utilized as a vibration damping, sound absorptive, impact absorptive, vibration-proof, electromagnetic wave absorptive, piezoelectric, and endothermal material as well as a polarity liquid.
Claims62
An energy conversion composition, excluding the conversion of electrical into mechanical energy, and excluding the conversion of optical energy, wherein the composition comprises
- a base material;
- and
- a moment activator comprising a diphenyl acrylate radical, in an amount from 20 to 500 parts by weight per 100 parts by weight of the base material said amount being effective to increase the amount of dipole moment in the base material by 3 to 10 fold.
An energy conversion composition, excluding the conversion of electrical into mechanical energy, and excluding the conversion of optical energy, wherein the composition comprises
- a base material selected from the group consisting of polyvinyl chloride, polyethylene, chlorinated polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polymethyl methacrylate, polyvinylidene fluoride, polyisoprene, polystyrene, styrene-butadiene-acrylonitrile copolymer, styrene-acrylonitrile copolymer, polyester, polyurethane, polyaxmide, polyvinylidene chloride, polyacrylonitrile, polyvinyl alcohol, cellulose, acrylonitrile-butadiene rubber, styrene-butadiene rubber, butadiene rubber, natural rubber, acrylic rubber, chloroprene rubber, and isoprene rubber;
- and
- a moment activator mixed into the base material, wherein the moment activator is a compound having a diphenyl acrylate radical, in an amount from 20 to 500 parts by weight per 100 parts by weight of the base material said amount being effective to increase the amount of dipole moment in the base material by 3 to 10 fold.
A sound absorptive sheet comprising
- a fibrous sheet;
- and
- a polymeric material fixedly deposited on the fibrous sheet, the polymer material comprising a base material and a moment activator consisting essentially of a diphenyl acrylate radical mixed into the base material in an amount from 20 to 500 parts by weight per 100 parts by weight of the base material said amount being effective to increase the amount of dipole moments in the base material by 3 to 10 fold, thereby providing sound absorption.
A foamed sound absorptive material comprising a foamed base material and a moment activator consisting essentially of a diphenyl acrylate radical mixed into the base material in an amount from 20 to 500 parts by weight per 100 parts by weight of the base material said amount being effective to increase the magnitude of dipole moments in the base material, thereby providing sound absorption.
A sound absorptive fiber comprising a base material and a moment activator consisting essentially of a diphenyl acrylate radical mixed into the base material in an amount from 20 to 500 parts by weight per 100 parts by weight of the base material effective to increase the amount of dipole moments in the base material by 3 to 10 fold, thereby providing sound absorption, wherein the base material is in the form of a fiber.
Dependencies are inferred from the claim text.