AQUEOUS DISPERSION OF FLUORALKYLATED POLYMER PARTICLES WITH ACORN MORPHOLOGY

• Main Authors: ANDREW SWARTZ, JAMES C. BOHLING, ARNOLD S. BROWNELL
• Format: Patent
• Language: English; Korean
• Published: 19.06.2018
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING-UP

The present invention relates to a water-based dispersion of a polymer particle having a core-shell shape of which a core protrudes from a shell, wherein the core includes 5-90 wt% of a structural unit of a fluoroalkylated monomer. In addition, the composition contains less than 0.09 wt% of a structural unit of a phosphorous acid monomer. The shell contains 0.1-5 wt% of itaconic acid or the phosphorous acid monomer based on the weight of the shell. Moreover, provided is a method for selectively concentrating a fluoroalkyl functional group into polymer particles having an acorn-like shape, thereby improving dust adsorption resistance on coating. 본 발명은 1) 코어가 쉘로부터 돌출하는 코어-쉘 형태를 갖는 폴리머 입자의 수성 분산물로서, 상기 코어는 5 내지 90중량 퍼센트의 플루오로알킬화된 모노머의 구조 단위를 포함하는, 상기 수성 분산물, 및 2) 0.09중량 퍼센트 미만의 아인산 모노머의 구조 단위를 포함하는 조성물을 제공하고; 그리고 상기 쉘은 쉘의 중량을 기준으로 0.1 내지 5중량 퍼센트의 이타콘산 또는 아인산 모노머를 포함한다. 본 발명은 도토리 형태를 갖는 폴리머 입자 안으로 플루오로알킬 작용기를 선택적으로 농축시키는 방법을 제공하고, 이로써 차후의 코팅의 먼지 흡착 저항의 개선을 제공함으로써 당해 기술에서의 필요성을 해결한다.