Graphic sheet, method of producing graphic sheet, and building structure
Assignee3M Innovative Properties Company
InventorsMasami Miura, Yoshinori Araki, Yorinobu Takamatsu
Life of this patent
Estimating the term…
Abstract
A graphic sheet is provided that can be affixed with sufficient adhesive force onto wallpaper, a poster, or other substrate having comparatively low strength, and can be easily renewed without damaging the substrate, which is the underlying layer. A graphic sheet of an embodiment of the present disclosure includes: a base film layer having a first surface and a second surface situated on an opposite side of the first surface; and a tacky acrylic foam layer disposed on or above the second surface of the base film layer. The acrylic foam layer contains an acrylic polymer having 20 mass % or more of a unit derived from ethyl acrylate.
Claims13
A graphic sheet capable of being affixed to and detached from a substrate, the graphic sheet comprising:
- a base film layer having a first surface and a second surface situated on an opposite side of the first surface;
- and
- a tacky acrylic foam layer disposed on or above the second surface of the base film layer, the acrylic foam layer containing an acrylic polymer having 20 mass % or more and 55 mass % or less of a unit derived from ethyl acrylate.
A method of producing a graphic sheet capable of being affixed to and detached from a substrate, the method comprising:
- providing a base film layer having a first surface and a second surface situated on an opposite side of the first surface;
- forming a tacky acrylic foam layer;
- and
- arranging a bonding layer on or above the second surface of the base film layer, and laminating the acrylic foam layer onto the bonding layer, the forming the acrylic foam layer comprising:
- foaming an acrylic foam precursor containing an acrylic polymer having 20 mass % or more and 55 mass % or less of a unit derived from ethyl acrylate;
- molding the foamed acrylic foam precursor into a sheet;
- and
- curing the sheet of the foamed acrylic foam precursor.
Dependencies are inferred from the claim text.