3m Innovative Properties Company

Haruyuki Mikami

Mieczyslaw H Mazurek

Patrick R Fleming

Joseph Clark Carls

Jie Yang

Larry A Meixner

Shigeaki Dohgoshi

Koji Kamiyama

An object of the present invention is to provide an adhesive film that can be applied easily to an adherend having a three-dimensional shape. An adhesive film according to the present disclosure is an adhesive film having a three-dimensional molded shape and including: a base layer; an adhesive layer including a fine structure in a surface; and a liner layer covering the adhesive layer. The fine structure of the adhesive layer includes a plurality of convex parts. Each of the plurality of convex parts includes two or more parts joined to each other via an interface. A first part present in a top of the convex part includes a non-adhesive or weak adhesive material, and a second part present below the first part includes a strong adhesive material.

Adhesive film having three-dimensional molded shape

A pressure sensitive adhesive surface that does not adhere to the adherend and can be positioned by sliding it under low pressure, while it can exert a sufficient adhesive force under a pressure above a certain level. The adhesive sheet includes an adhesive layer with a fine structure on a surface thereof. The fine structure includes a plurality of cone or frustum structures, with the cones or frustums having two or more parts joined to each other via an interface. A first part is present on a top of the cones or frustums and is formed from a non-adhesive or a weak adhesive material, and a second part is present below the first part and is formed from a strong adhesive material.

Adhesive sheet

Methods of preparing adhesive-backed articles and methods of applying adhesives backed articles are described. The adhesive-backed articles include a compliant film and a pressure-sensitive adhesive having a microstructured surface opposite the compliant film.

Adhesive-backed articles

The laminate film for covering of an image carried by a support has a construction comprising a transparent base material and a transparent adhesive layer formed on one side of the base material, wherein the adhesive layer is composed of a pressure-sensitive adhesive and has a surface with a fine uneven structure.

Image covering laminate film and image projection sheet

A pressure sensitive adhesive layer with a structured surface, wherein the adhesive layer is capable of being dry laminated to a substrate to form a laminate. The adhesive layer has a haze after lamination, measured according to ASTM D 1003-95, of less than about 50% of the haze of the adhesive layer before lamination. After dry lamination, the adhesive layer has a luminous transmittance of more than about 85%, a haze of less than about 25%, and an opacity of less than about 3%.

Specular laminates

An adhesive-backed article having a compliant film with a pressure sensitive adhesive bonded to one surface of the film. The pressure sensitive adhesive includes a microstructured surface opposite the compliant film. The microstructured surface defines channels in the adhesive. The channels create pathways for the egress of fluids. Upon application onto a substrate, the channels and structures wet out to render the microstructured surface substantially undetectable when viewed from the exposed surface of the article.

Growing community of inventors

Odawara, Japan

Haruyuki Mikami