Adhesive composition
An adhesive composition includes a polyvinyl alcohol binder, a crosslinking agent and a compound of Formula 1 below, HO—SO 2 —R [Formula 1] wherein in Formula 1, R is an alkyl group, a haloalkyl group or a haloalkylaryl group. The adhesive composition may have excellent water resistance, adhesive force and other optical properties as well as greatly improved storage stability.
1. An adhesive composition comprising:
water;
an acetoacetyl group-modified polyvinyl alcohol aqueous binder in a concentration of between 1 to 10 parts by weight relative to 100 parts by weight of the water;
a methylol melamine crosslinking agent in a ratio of 15 parts by weight relative to 100 parts by weight of the aqueous binder;
a 3-glycidoxypropyltrimethoxysilane compound in a ratio of 10 parts by weight relative to 100 parts by weight of the aqueous binder; and
a compound of Formula 1 below, in a ratio of 2 parts by weight relative to 100 parts by weight of the aqueous binder:
HO—SO 2 —CF 3 [Formula 1].
2. The adhesive composition according to claim 1 , wherein the aqueous binder is in a concentration of between 1 to 8 parts by weight relative to 100 parts by weight of the water.
3. The adhesive composition according to claim 1 , wherein the aqueous binder is in a concentration of between 1 to 5 parts by weight relative to 100 parts by weight of the water.
4. An optical laminate comprising:
a first optical film;
a second optical film; and
an adhesive layer of the adhesive composition of claim 1 ,
wherein the adhesive layer attaches the first optical film and the second optical film to each other.
5. The optical laminate according to claim 4 , wherein the first optical film or the second optical film is a polarizer and the other is a protective film.
6. A display device comprising the optical laminate of claim 4 .