TRANSPARENT METHYLMETHACRYLATE RESIN COMPOSITION HAVING GOOD OPTICAL PROPERTIES

• Main Authors: JEON, EUN JIN, KIL, MIN HO, SEO, HYO JUNG, LEE, YOUNG SOO
• Format: Patent
• Language: English; Korean
• Published: 12.10.2012
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

PURPOSE: A transparent polymethyl(meth)acrylate resin composition is provided to have excellent processability and color stability to UV ray, while having excellent optical properties, thereby capable of being used for an LCD light guide plate, etc. CONSTITUTION: A transparent polymethyl(meth)acrylate resin composition using ultraviolet irradiation drying comprises 0.01-0.5 parts by weight of phosphorous-based antioxidant in chemical formula 1 based on 100.0 parts by weight of methyl(meth)acrylate homopolymer or methyl(meth)acrylate copolymer. In chemical formula 1, R^1 is one selected from C8-22 alkyl or C8-22 alkenyl. The resin composition additionally comprises one or more additives selected from a group consisting of UV stabilizer, photostabilizer, lubricant, and a mixture thereof. [Reference numerals] (AA) Deviation of optical transmittance(ΔLTT); (BB) Deviation of yellow degree(ΔLYI); (C1,C2) Embodiment 1; (D1,D2) Embodiment 2; (E1,E2) Embodiment 3; (F1,F2) Embodiment 4; (G1,G2) Embodiment 5; (H1,H2) Comparative embodiment 1; (I1,I2) Comparative embodiment 2; (J1,J2) Comparative embodiment 3; (K1,K2) Comparative embodiment 4; (L1,L2) Comparative embodiment 5; (M1,M2) Comparative embodiment 6; (N1,N2) Comparative embodiment 7