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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 10316156 B1

PDFFull Text
Date of Patent:
Jun. 11, 2019

Filed:

Sep. 18, 2015

Foamed sheet

Applicant:

Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;

Inventors:

Kohei Doi, Ibaraki, JP;

Kazumichi Kato, Ibaraki, JP;

Hideyuki Tokuyama, Ibaraki, JP;

Tadao Takahashi, Ibaraki, JP;

Assignee:

NITTO DENKO CORPORATION, Ibaraki-shi, Osaka, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Hai Vo

Int. Cl.
CPC ...
B32B 5/18 (2006.01); C08J 5/18 (2006.01); C08J 9/00 (2006.01); C08J 9/12 (2006.01); C08J 9/30 (2006.01); C08J 9/36 (2006.01); C09J 7/26 (2018.01); B32B 27/06 (2006.01); B32B 27/28 (2006.01); C09J 201/00 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); B32B 5/18 (2013.01); B32B 27/065 (2013.01); B32B 27/283 (2013.01); C08J 9/0061 (2013.01); C08J 9/12 (2013.01); C08J 9/30 (2013.01); C08J 9/365 (2013.01); C09J 7/26 (2018.01); C09J 201/00 (2013.01); B32B 2266/025 (2013.01); B32B 2266/0278 (2013.01); B32B 2266/08 (2013.01); B32B 2305/022 (2013.01); B32B 2307/306 (2013.01); B32B 2307/308 (2013.01); B32B 2307/558 (2013.01); B32B 2309/02 (2013.01); B32B 2309/04 (2013.01); B32B 2405/00 (2013.01); B32B 2457/20 (2013.01); C08J 2201/026 (2013.01); C08J 2205/044 (2013.01); C08J 2205/05 (2013.01); C08J 2205/06 (2013.01); C08J 2207/00 (2013.01); C08J 2333/06 (2013.01); C08J 2333/08 (2013.01); C08J 2433/08 (2013.01); C08J 2491/00 (2013.01); C09J 2201/606 (2013.01); C09J 2201/622 (2013.01); C09J 2203/318 (2013.01); C09J 2203/326 (2013.01); C09J 2205/114 (2013.01); C09J 2400/24 (2013.01); C09J 2423/046 (2013.01); C09J 2433/00 (2013.01); C09J 2433/006 (2013.01); C09J 2475/006 (2013.01); G02F 2201/503 (2013.01);
Abstract

There is provided a foamed sheet which takes only a short time to recover the thickness thereof after being compressed, and even if being subjected to repeated impacts, hardly decreases in the impact absorption. The foamed sheet according to the present invention comprises a foamed body formed of a resin composition comprising: a thermoplastic resin a and a silicone-based compound b having not more than 2,000 siloxane bonds; and/or a thermoplastic resin a' having a silicone chain having not more than 2,000 siloxane bonds. The thermoplastic resin a is preferably at least one selected from the group consisting of acrylic polymers, rubbers, urethanic polymers and ethylene-vinyl acetate copolymers. The silicone-based compound b is preferably at least one selected from the group consisting of silicone oils, modified silicone oils and silicone resins.

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