Stretchable film, method for forming the same, stretchable wiring film, and method for manufacturing the same
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsJun Hatakeyama, Motoaki Iwabuchi
Life of this patent
Estimating the term…
Abstract
The present invention provides a stretchable film including: a cured product of a composition which contains (A) a poly(meth)acrylate compound having a polymerizable double bond and a siloxane bond, (B) a (meth)acrylate compound having a urethane bond, and (C) an organic solvent having a boiling point in the range of 115 to 200° C. at atmospheric pressure; wherein the component (A) is localized in the direction of the surface of the film. The stretchable film of the present invention is excellent in stretchability and strength as well as repellency on the film surface.
Claims14
A stretchable film comprising:
- a cured product of a composition which contains (A) a poly(meth)acrylate compound having a polymerizable double bond and a siloxane bond, (B) a (meth)acrylate compound having a urethane bond, (C) an organic solvent having a boiling point in the range of 115 to 200° C. at atmospheric pressure, and (D) a thermal- or photo-radical generator;
- wherein
- the component (A) is localized in the direction of a surface of the film,
- the ratio of the component (A) is in the range of 0.1 to 35% by mass based on the total mass of solid contents in the composition excluding the component (C), and
- the component (C) is present in an amount range of 5 to 1,000 parts by mass based on 100 parts by mass of the solid contents in the composition.
A method for forming a stretchable film comprising:
- coating a substrate with a composition which contains (A) a poly(meth)acrylate compound having a polymerizable double bond and a siloxane bond, (B) a (meth)acrylate compound having a urethane bond, (C) an organic solvent having a boiling point in the range of 115 to 200° C. at atmospheric pressure, and (D) a thermal- or photo-radical generator;
- evaporating the component (C) by heating, while localizing the component (A) in the direction of a surface of the film;
- and thereafter
- curing the component (A) and the component (B) by heat or light irradiation.
A stretchable wiring film, comprising a conductive wiring having stretchability, the both sides of the conductive wiring being coated with a stretchable film comprising:
- a cured product of a composition which contains (A) a poly(meth)acrylate compound having a polymerizable double bond and a siloxane bond, (B) a (meth)acrylate compound having a urethane bond, (C) an organic solvent having a boiling point in the range of 115 to 200° C. at atmospheric pressure, and (D) a thermal- or photo-radical generator;
- wherein
- the component (A) is localized in the direction of a surface of the film;
- and
- the surface localizing the component (A) of the stretchable film is disposed on the outside, and the conductive wiring is disposed on the inside.
Dependencies are inferred from the claim text.