▎ 摘　　要

NOVELTY - Vehicle window film (100) comprises an adhesive layer (110) comprising acrylic copolymer, curing agent and solvent; a first polyethylene terephthalate (PET) layer (141) disposed on the adhesive layer and comprising polyethylene terephthalate; an adhesive layer (130) disposed on the first PET layer and comprising a urethane resin, curing agent, UV blocking agent, infrared (IR) blocking agent, and graphene; a second PET layer disposed on the adhesive layer and comprising polyethylene terephthalate; and a hard coating layer (120) disposed on the second PET layer and comprising an acrylic resin and a photoinitiator. The IR blocking agent includes carbon, tungsten oxide and antimony tin oxide. USE - The vehicle window film is useful for blocking sunlight in UV and IR regions without interfering with radio waves of electronic devices i.e. navigation systems, hi-passes, and smart phones inside vehicle. ADVANTAGE - The vehicle window film has high visible light transmittance and high thermal blocking effect; can be quickly dispersed heat through graphene; exerts high thermal blocking effect without generating haze in window film by controlling content of IR blocking agent and graphene; exhibits effect of suppressing occurrence of haze by forming dispersion by acid-treating graphene, occurrence of haze by dispersing and mixing by high shear mixer, when the adhesive layer is formed, and occurrence of haze by performing dispersion and mixing by stirring through bead mill when forming the adhesive layer; and is attached to automobile glass to block heat flowing into the interior, and to increase heat blocking efficiency by rapidly dissipating heat through graphene. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the vehicle window film. Vehicle window film (100) Adhesive layer (110) Hard coating layer (120) Adhesive layer (130) First PET layer (141)