Dai Nippon Printing Co., Ltd.

Hidetsugu Tazawa

Hironori Kamiyama

Katsuya Sakayori

Yuichi Miyazaki

Nobuo Naito

Kazunari Ikeda

Shigeki Kawano

Takeshi Nishizono

Hiroko Amasaki

Shinya Kiura

Nozomi Kaga

Kouhei Ohno

Intended is to provide an electromagnetic shielding material having a conductive layer pattern by transferring a conductive composite to a transparent base material, and an electromagnetic shielding material having a metal layer formed on the transferred conductive layer. The electromagnetic shielding material is free from the troubles such as the breaking of wire, the non-conforming shape or the low contact, which is based on the non-conforming transfer of the conductive composite. The electromagnetic shielding material comprises a transparent base material, a primer layer formed over the transparent base material, and a conductive layer formed in a predetermined pattern on the primer layer. In the primer layer, a portion having the conductive layer formed therein has a thickness larger than the thickness of a portion without the conductive layer.

Printed matter and its manufacturing method, and electromagnetic shielding material and its manufacturing method

There is provided a resin laminate having a layer construction of a first inorganic material layer/insulating layer/second inorganic material layer or a layer construction of an inorganic material layer/insulating layer, wherein the insulating layer has a multi-layer structure of two or more resin layers of a core insulating layer and an adhesive insulating layer. In this case, the resin laminate has the adhesive insulating layer which can realize optimal etching, is suitable for etching by a wet process, and has excellent adhesion. At least one of the layers constituting the insulating layer is formed of a polyimide resin which comprises repeating units represented by formula (1) and has a glass transition point of 150 to 360&#xb0; C. and is dissolvable in a basic solution at a rate of more than 3 &#x3bc;m/min, preferably more than 5 &#x3bc;m/min, and most preferably more than 8 &#x3bc;m/min.

Laminate and use thereof

Growing community of inventors

Tokyo, Japan

Hidetsugu Tazawa