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US 2019/0338165 A1Published application
Method Of Preparing Acrylic Adhesive And Adhesive Film Prepared Therefrom
AssigneeLG Chem, Ltd.
InventorsJun Man Choi, Sang Hwan Kim, Jang Soon Kim, Kwang Su Seo, Won Gu Choi, Chi Gwan An
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Abstract
A method of preparing an acrylic adhesive, in which the durability of an adhesive film may be improved through additional photocuring and the residual components according to solution photopolymerization are efficiently removed, and an adhesive film prepared therefrom.
Claims13
A method of preparing an acrylic adhesive, the method comprising:
- preparing a mixture including a (meth)acrylate-based monomer, a photoreactive functional group-containing (meth)acrylate-based monomer, a chain transfer agent, and a solvent;
- solution photopolymerizing the mixture to form a solution including a low molecular weight acrylic resin
- mixing the solution including the low molecular weight acrylic resin with a monomer for dilution;
- and then
- reducing pressure to remove the solvent and any residual amount of the chain transfer agent from the solution including the low molecular weight acrylic resin with the monomer,
- wherein the photoreactive functional group-containing (meth)acrylate-based monomer is included in an amount of 0.1 part by weight or more to 10 parts by weight or less based on 100 parts by weight of the (meth)acrylate-based monomer.
3 more elements
Dependencies are inferred from the claim text.