Adhesive composition, adhesive sheet, and method for producing same
AssigneesToyo Ink Sc Holdings Co., Ltd., Toyochem Co., Ltd.
InventorsYoshitaka TONE, Toru OYA, Tetsuya NATSUMOTO, Hiroyuki HAYASHI, Naoki TAKEUCHI, Yutaro KATO
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Abstract
An adhesive composition that exhibits excellent adhesive performance such as curved surface adhesiveness to low-polarity adherends and constant load peeling properties in high-temperature environments, and also an adhesive sheet and a method for producing the same.
Claims8
An adhesive composition comprising an acrylic polymer (A), a polyfunctional isocyanate compound (B) and a compound (C) having a steroid skeleton, wherein
- the acrylic polymer (A) is an acrylic polymer having a hydroxyl group and/or a carboxyl group, and
- an amount of the compound (C) having a steroid skeleton is from 0.1 to 20 parts by mass per 100 parts by mass of the acrylic polymer (A).
A method for producing an adhesive sheet by forming an adhesive layer by coating and/or bonding on one surface of a surface skin material (D), wherein
- the adhesive layer comprises an adhesive composition comprising an acrylic polymer (A), a polyfunctional isocyanate compound (B) and a compound (C) having a steroid skeleton,
- the acrylic polymer (A) is an acrylic polymer having a hydroxyl group and/or a carboxyl group, and
- an amount of the compound (C) having a steroid skeleton is from 0.1 to 20 parts by mass per 100 parts by mass of the acrylic polymer (A).
Dependencies are inferred from the claim text.