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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 9387653 B1

PDFFull Text
Date of Patent:
Jul. 12, 2016

Filed:

Mar. 20, 2014

Protective layer transfer sheet, and the intermediate transfer medium

Applicant:

Dai Nippon Printing Co., Ltd., Tokyo, JP;

Inventors:

Junpei Oomura, Tokyo, JP;

Kenzo Hayashi, Tokyo, JP;

Mitsuhiro Oota, Tokyo, JP;

Kano Sakamoto, Tokyo, JP;

Shinya Yoda, Tokyo, JP;

Assignee:

DAI NIPPON PRINTING CO., LTD., Tokyo, JP;

Attorney:

Ladas & Parry LLP

Primary Examiner:

Bruce H Hess

Int. Cl.
CPC ...
B32B 27/36 (2006.01); B32B 27/38 (2006.01); B32B 27/08 (2006.01); B41M 5/44 (2006.01); B32B 7/06 (2006.01); B41M 7/00 (2006.01); B41M 5/382 (2006.01); B41M 5/50 (2006.01); B41M 5/52 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B32B 7/06 (2013.01); B32B 27/36 (2013.01); B32B 27/38 (2013.01); B41M 5/38257 (2013.01); B41M 5/44 (2013.01); B41M 5/502 (2013.01); B41M 5/52 (2013.01); B41M 7/0045 (2013.01); B32B 2307/412 (2013.01); B32B 2307/748 (2013.01); B41M 2205/02 (2013.01); B41M 2205/10 (2013.01); B41M 2205/36 (2013.01); B41M 2205/38 (2013.01); B41M 2205/40 (2013.01);
Abstract

The purpose is to provide a protective layer transfer sheet and an intermediate transfer medium, in which the protective layer has excellent foil tearing property during transfer and in which sufficient durability can be imparted to the thermally transferred image. The above problem is solved by a protective layer transfer sheet in which a transferable protective layer () is provided on one surface of a substrate () so as to be peelable from the substrate (), wherein the transferable protective layer () has a layered structure in which a first protective layer (A), and a second protective layer (B) which is in contact directly with the first protective layer (A), are provided in this order from the substrate (); the first protective layer contains an epoxy-cured resin in which a reactive resin having a functional group capable of reacting with an epoxy group and having a glass transition temperature (Tg) of not less than 60° C. is reacted with and cured by an epoxy curing agent; and the second protective layer (B) contains a polyester resin having a number-average molecular weight (Mn) of not less than 8000 and a glass transition temperature (Tg) of not less than 45° C.

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