ANTIBACTERIAL AND ANTISTATIC MULTIFUNCTIONAL HARD COATING COMPOSITION, ITS COATING METHOD AND HARD COATING TRANSPARENT SHEET USING IT

• Main Authors: KIM, HYUN DON, SHIN, DONG IL, JOUNG, YOUNG GAK, SOHN, HO SEOK
• Format: Patent
• Language: English
• Published: 13.06.2007
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INKS; MANUFACTURE OR TREATMENT THEREOF; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS,MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES ASDISCRETE UNITS; NANOTECHNOLOGY; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WOODSTAINS

Provided are a hard coating composition which is antibacterial, is excellent in contamination resistance and antistatic property and is improved in surface resistance, transparence, hardness and scratch resistance, a method for coating a plastic substrate by using the composition, and a hard coating transparent sheet prepared by the method. The hard coating composition comprises 1-10 wt% of a silver nanoparticle sol; 0.01-2.0 wt% of a conductive filler; 10-50 wt% of a radiation curing resin; 1-5 wt% of a photopolymerization initiator; and the balance of an organic solvent. Preferably the silver nanoparticle sol has an average diameter of 1-10 nm and comprises a silver nanoparticle coated with a silicone-based compound; the conductive filler is at least one selected from the group consisting of polyaniline, polypyrrole and polythiophene; and the radiation curing resin comprises at least one selected from mono- to trifunctional acrylic monomer.