Resin composition for acoustic matching layer
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United States of America
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Jun 18, 2024
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N/A
app pub date -
Sep 27, 2019
filing date -
Sep 27, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a resin composition for an acoustic matching layer which maintains uniform dispersibility of a hollow filler, can suppress bubble trapping, and is excellent in moldability and handleability. The resin composition for an acoustic matching layer, comprises a resin, a hollow filler, and a thixotropy imparting agent, wherein the resin composition has a viscosity measured using a B-type viscometer with rotor No. 4 at a rotation speed of 0.3 rpm at 25° C. of 1130 to 4000 Pa·s, and has a thixotropy index expressed by the ratio (V1/V2) between a viscosity (V1) measured using a B-type viscometer with rotor No. 4 at a rotation speed of 0.3 rpm and a viscosity (V2) measured using a B-type viscometer with rotor No. 4 at a rotation speed of 1.5 rpm, at 50° C., of 3.0 to 5.0.
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International Classification(s)
- C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
- B06B:GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS I....
- G10K:SOUND-PRODUCING DEVICES
- H04R:LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR ....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
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