Adhesive for heat-sensitive screen master, heat-sensitive screen master, and method for producing heat-sensitive screen master
AssigneeRiso Kagaku Corporation
InventorHirotaka Tominaga
Life of this patent
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Abstract
An adhesive for a heat-sensitive screen master is disclosed, the adhesive containing at least one selected from the group consisting of a urethane prepolymer and a polyol, and a polyisocyanate, wherein the mass ratio (A:B) between the at least one (A) selected from the group consisting of a urethane prepolymer and a polyol, and the polyisocyanate (B) is within a range from 35:65 to 5:95. A heat-sensitive screen master and a method for producing a heat-sensitive screen master are also disclosed.
Claims16
A heat-sensitive screen master comprising a screen printing mesh, an adhesive layer formed using an adhesive for a heat-sensitive screen master, and a thermoplastic resin film,
- wherein the adhesive comprises (A) at least one selected from the group consisting of a urethane prepolymer and a polyol comprising a polycarbonate polyol, and (B) a polyisocyanate,
- wherein a mass ratio (A:B) between the (A) at least one selected from the group consisting of a urethane prepolymer and a polyol comprising a polycarbonate polyol, and the (B) polyisocyanate is within a range from 35:65 to 5:95, and
- wherein an amount of the (A) at least one selected from the group consisting of a urethane prepolymer and a polyol comprising a polycarbonate polyol relative to the total mass of the adhesive for a heat-sensitive screen master is not more than 30% by mass, and the amount of the (B) polyisocyanate relative to the total mass of the adhesive for a heat-sensitive screen master is at least 70% by mass.
Dependencies are inferred from the claim text.