The present invention relates to a hard coating film, and blinds comprising same. The hard coating film, which is one aspect of the present invention, has no curling phenomenon that occurs when a coating layer is cured, and has no blocking phenomenon that occurs when the film is wound using a roll or the like. That is, the hard coating film of the present invention has excellent structural stability, processability, and storability.

The present invention relates to a hard coating film, and blinds comprising same. The hard coating film, which is one aspect of the present invention, has no curling phenomenon that occurs when a coating layer is cured, and has no blocking phenomenon that occurs when the film is wound using a roll or the like. That is, the hard coating film of the present invention has excellent structural stability, processability, and storability.

The present invention relates to a graphene-containing window film for a vehicle, and more particularly, to a graphene-containing vehicle window film attached to a car glass to block heat from entering an interior, and dissipate the heat quickly through graphene, thereby increasing thermal insulation efficiency.

Provided are: an adhesive composition comprising (i) (meth)acrylic prepolymer having a hydroxyl group and an alkyl group, and (ii) at least one of an aromatic group-containing (meth)acrylate, an alicyclic group-containing (meth)acrylate, and a heteroalicyclic group-containing (meth)acrylate, and having a shear viscosity of about 0.04 Pa.Math.s or less at 40° C., wherein an adhesive layer formed of the adhesive composition has a modulus of about 0.3 MPa or less at −20° C. and a peel strength of about 400 gf/in or more; an adhesive layer formed therefrom; and an optical display device comprising same.

Cationic or zwitterionic polymer adhesives, adhesive articles, aqueous polymerizable pre-adhesive reaction mixtures, and methods of preparation that include internal incorporation of a hydrocarbon tackifier. An aqueous polymerizable pre-adhesive reaction mixture includes one or more cationic (meth)acrylate monomers, one or more low Tg nonionic monomers having a (meth)acryloyl group, optionally one or more anionic (meth)acrylate monomers, and one or more hydrocarbon tackifiers.

Cationic or zwitterionic polymer adhesives, adhesive articles, aqueous polymerizable pre-adhesive reaction mixtures, and methods of preparation that include internal incorporation of a hydrocarbon tackifier. An aqueous polymerizable pre-adhesive reaction mixture includes one or more cationic (meth)acrylate monomers, one or more low Tg nonionic monomers having a (meth)acryloyl group, optionally one or more anionic (meth)acrylate monomers, and one or more hydrocarbon tackifiers.

Provided is a PSA sheet that can combine bonding reliability and peeling removability, and further can be peeled off without causing deformation or damage to the adherend in various peeling modes. The PSA sheet provided by this invention has a PSA layer. The PSA sheet has a water-peel strength of 2 N/10 mm or less. The PSA sheet further has a stress at 100 % elongation of less than 30 MPa as well as a multiplication product (σf-εf) of fracture stress σf (MPa) and fracture strain εf (%) of 250 or greater.

The present invention relates to an aqueous emulsion including an ethylenically unsaturated monomer unit-containing polymer as a dispersoid and a polyvinyl alcohol as a dispersant. The content of a free polyvinyl alcohol in the aqueous emulsion is 0.2 to 20 parts by mass relative to 100 parts by mass of the ethylenically unsaturated monomer unit-containing polymer. The free polyvinyl alcohol has a degree of saponification of 80.0 to 99.5 mol % and a viscosity-average degree of polymerization of 200 to 5000, and the free polyvinyl alcohol has a symmetry factor (W.sub.0.05h/2f) that satisfies the following expression (1) as determined by gradient high-performance liquid chromatography for reversed-phase separation using a water-acetone eluent according to JIS K 0124 (2011).

0.85≦W.sub.0.05h/2f≦1.30  (1)

(The definitions of the symbols are omitted.)

The present invention relates to an aqueous emulsion including an ethylenically unsaturated monomer unit-containing polymer as a dispersoid and a polyvinyl alcohol as a dispersant. The content of a free polyvinyl alcohol in the aqueous emulsion is 0.2 to 20 parts by mass relative to 100 parts by mass of the ethylenically unsaturated monomer unit-containing polymer. The free polyvinyl alcohol has a degree of saponification of 80.0 to 99.5 mol % and a viscosity-average degree of polymerization of 200 to 5000, and the free polyvinyl alcohol has a symmetry factor (W.sub.0.05h/2f) that satisfies the following expression (1) as determined by gradient high-performance liquid chromatography for reversed-phase separation using a water-acetone eluent according to JIS K 0124 (2011).

0.85≦W.sub.0.05h/2f≦1.30  (1)

(The definitions of the symbols are omitted.)

The present invention relates to an optical adhesive film which has excellent adhesive strength at room temperature and has improved efficiency in a rework process since peel strength is low at high temperatures. When attaching a touchscreen panel and an LCD by using the adhesive film of the present invention and separating the touchscreen panel and the LCD at high temperatures, the touchscreen panel and the LCD can be separated from each other without causing damage thereto. Additionally, the optical film of the present invention comprises two adhesive layers, wherein peeling occurs at the first adhesive layer having an adhesive composition such that a peeling surface can be controlled according to the convenience of a user.