Optical adhesive composition for displays, optical adhesive film prepared from the same, and display panel including the same
A technology of optical adhesives and compositions, applied in adhesive types, polyurea/polyurethane adhesives, film/sheet adhesives, etc., can solve the limitation of OCA film and the growth of demand for OCA film, etc. question
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example 1
[0084] Preparation Example 1: Preparation of Polyurethane (meth)acrylate Copolymer
[0085] 80 g of polypropylene glycol and 10 g of 1,4-butanediol were placed in a 2L four-necked flask, which was equipped with a reflux cooling system on one side, a thermometer on the other side, and a dropping funnel on the third side. The solution in the flask was heated to 60° C., and 1.3 g of dibutyltin dilaurate (DBTDL) dissolved in toluene at a concentration of 10% was added thereto. 6 g of isophorone diisocyanate and 0.7 g of hexamethylene diisocyanate-based aliphatic polyisocyanate (AE700-100, ASAHI KASEI) were sequentially added to the flask and reacted at 75°C. The disappearance of residual isocyanate was then confirmed by IR, the flask was cooled to 50° C., and 1 g of 2-methacryloyloxyethyl isocyanate (MOI) was added thereto. The flask was kept at 50° C. for 2 hours, and then the disappearance of residual isocyanate was confirmed by IR, thereby producing a urethane (meth)acrylate c...
preparation example 2
[0086] Preparation example 2: the preparation of polyurethane (meth)acrylate copolymer
[0087] A urethane (meth)acrylate copolymer was prepared in the same manner as Preparation Example 1, except that 1 g of 3-isocyanatopropyltriethoxysilane was added, and 1 g of 2-methacryloxyethyl isocyanate was added After a further 1 hour of reaction (MOI), the disappearance of residual isocyanate was confirmed by IR.
preparation example 3
[0088] Preparation Example 3: Preparation of Polyurethane (meth)acrylate Copolymer
[0089] 89.45g of polypropylene glycol was placed in a 2L four-neck flask, one side of the flask was equipped with a reflux cooling system, the other side was equipped with a thermometer, and the third side was equipped with a dropping funnel. The solution in the flask was heated to 60° C., and 1.3 g of dibutyltin dilaurate (DBTDL) dissolved in toluene at a concentration of 10% was added thereto. 9.15 g of isophorone diisocyanate and 0.7 g of hexamethylene diisocyanate cyclic trimer (HDI trimer, DESMODUR N-3300, Bayer) were sequentially added to the flask, and reacted at 75°C. When the theoretical NCO% was reached after 3 hours of reaction, the flask was cooled to 60° C., and 3.37 g of 2-hydroxyethyl acrylate was added thereto. The flask was kept at 60° C. for 2 hours, and then the disappearance of residual isocyanate was confirmed by IR, thereby producing a urethane (meth)acrylate copolymer. ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| elongation | aaaaa | aaaaa |
| elongation | aaaaa | aaaaa |
| elongation | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More