IDiyas

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12012501 B1

PDFFull Text
Date of Patent:
Jun. 18, 2024

Filed:

Sep. 27, 2019

Resin composition for acoustic matching layer

Applicant:

Nisshinbo Holdings Inc., Tokyo, JP;

Inventors:

Hideshi Tomita, Chiba, JP;

Takashi Suzuki, Okazaki, JP;

Yoshitaka Saito, Ota-ku, JP;

Nana Isomoto, Chiba, JP;

Assignee:

NISSHINBO HOLDINGS INC., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Patrick D Niland

Int. Cl.
CPC ...
C08K 7/28 (2006.01); B06B 1/00 (2006.01); C08G 59/18 (2006.01); C08G 59/24 (2006.01); C08G 59/68 (2006.01); C08K 3/36 (2006.01); C08K 7/22 (2006.01); C08L 63/00 (2006.01); C08L 101/12 (2006.01); G10K 11/02 (2006.01); H04R 17/00 (2006.01);
U.S. Cl.
CPC ...
C08K 7/28 (2013.01); C08G 59/184 (2013.01); C08G 59/245 (2013.01); C08G 59/686 (2013.01); C08K 3/36 (2013.01); C08K 7/22 (2013.01); C08L 63/00 (2013.01); C08L 101/12 (2013.01); G10K 11/02 (2013.01); B06B 1/00 (2013.01); C08K 2201/005 (2013.01); C08K 2201/006 (2013.01); H04R 17/00 (2013.01);
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.

Find Patent Forward Citations

Loading…