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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 12404425 B1

PDFFull Text
Date of Patent:
Sep. 02, 2025

Filed:

Apr. 12, 2019

Multilayer film and molded body provided with same

Applicant:

Kuraray Co., Ltd., Okayama, JP;

Inventors:

Keisuke Enomoto, Ibaraki, JP;

Kazuki Iishiba, Ibaraki, JP;

Satoru Akiho, Ibaraki, JP;

Daisuke Konishi, Ibaraki, JP;

Assignee:

KURARAY CO., LTD., Okayama, JP;

Attorney:

GREENBLUM & BERNSTEIN, P.L.C.

Primary Examiner:

Frank D Ducheneaux

Int. Cl.
CPC ...
C09J 7/38 (2018.01); B29C 45/14 (2006.01); B29C 48/00 (2019.01); B29C 48/14 (2019.01); B29C 48/18 (2019.01); C09J 7/24 (2018.01); C09J 7/29 (2018.01); C09J 123/12 (2006.01); C09J 125/10 (2006.01); C09J 153/02 (2006.01); B29K 21/00 (2006.01); B29K 23/00 (2006.01);
U.S. Cl.
CPC ...
C09J 7/29 (2018.01); B29C 45/14688 (2013.01); B29C 48/0021 (2019.02); B29C 48/14 (2019.02); B29C 48/18 (2019.02); C09J 7/241 (2018.01); C09J 7/387 (2018.01); C09J 123/12 (2013.01); C09J 125/10 (2013.01); C09J 153/02 (2013.01); B29C 2045/14696 (2013.01); B29C 2045/14704 (2013.01); B29K 2021/003 (2013.01); B29K 2023/12 (2013.01); B32B 2307/558 (2013.01); C09J 2203/306 (2013.01); C09J 2203/354 (2020.08); C09J 2301/122 (2020.08); C09J 2301/162 (2020.08); C09J 2301/302 (2020.08); C09J 2301/312 (2020.08); C09J 2423/106 (2013.01); C09J 2453/00 (2013.01);
Abstract

A multilayer film and a decorative film, each of which is excellent in chipping resistance, exhibits favorable adhesive properties to a variety of resin materials, such as polypropylene and ABS, and a molded body provided with such a film. The multilayer film includes three layers of an impact absorption layer (a), a base material layer (b), and a pressure sensitive adhesive layer (c) disposed in this order, wherein a thermoplastic polymer composition constituting the impact absorption layer (a) is composed of at least one block copolymer containing a polymer block (X) containing a structural unit derived from an aromatic vinyl compound and a polymer block (Y) containing a structural unit derived from a conjugated diene compound, or a hydrogenated product thereof; and has a loss tangent (tan δ) at 11 Hz in a range of −50 to −20° C. of 3×10or more.

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