Title:
RESIN COMPOSITION FOR ACOUSTIC MATCHING LAYER
Document Type and Number:
WIPO Patent Application WO/2020/110445
Kind Code:
A1
Abstract:
The present invention provides a resin composition for an acoustic matching layer, the resin composition capable of holding uniform dispersibility of a hollow filler and suppressing foaming, and having excellent moldability and handleability. This resin composition for an acoustic matching layer includes resin, a hollow filler, and a thixotropy imparting agent, wherein the viscosity thereof measured under the condition of 25°C, rotor No. 4, and 0.3 rpm using a B-type viscometer is 1130-4000 Pa∙s, and a thixotropic index represented by a ratio (V1/V2) between a viscosity (V1) measured under the condition of rotor No. 4, and 0.3 rpm and a viscosity (V2) measured under the condition of rotor No. 4, and 1.5 rpm, respectively, at 50°C using the B-type viscometer is 3.0-5.0.
Inventors:
TOMITA HIDESHI (JP)
SUZUKI TAKASHI (JP)
SAITO YOSHITAKA (JP)
ISOMOTO NANA (JP)
SUZUKI TAKASHI (JP)
SAITO YOSHITAKA (JP)
ISOMOTO NANA (JP)
Application Number:
PCT/JP2019/038207
Publication Date:
June 04, 2020
Filing Date:
September 27, 2019
Export Citation:
Assignee:
NISSHINBO HOLDINGS INC (JP)
International Classes:
C08K3/36; H04R17/00; C08K7/22; C08L63/00; C08L101/00
Foreign References:
| JP2005130389A | 2005-05-19 | |||
| JP2003143685A | 2003-05-16 | |||
| JP2006174992A | 2006-07-06 | |||
| JPH11215594A | 1999-08-06 | |||
| US20130133408A1 | 2013-05-30 |
Other References:
See also references of EP 3890350A4
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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