용이하게 재순환 가능한 기판 코팅용 착색 분말 조성물

• Main Authors: LOZE JEAN YVES, ROGER DALBERT PIERRICK
• Format: Patent
• Language: Korean
• Published: 13.06.2023
• 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; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; 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 INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING-UP

본 발명은 주로 하기를 포함하는 기판 코팅용 폴리아미드계 착색 분말 조성물에 관한 것이며: (a) 40 중량% 내지 99 중량%의 적어도 하나의 폴리아미드; (b) 1 중량% 내지 30 중량%의 적어도 하나의 안료; 및 (c) 0 중량% 내지 30 중량%의 적어도 하나의 첨가제, 상기 폴리아미드는 표준 ISO 307에 따라 m-크레졸 중 0.5 중량% 용액에 대해 20℃에서 Ubbelohde 튜브를 사용하여 측정 시 25℃가 아닌 20℃의 측정 온도에서 0.7 (g/100 g)-1 이상의 고유 점도를 갖고, 상기 조성물은 표준 ISO 9276 - 파트 1 내지 6에 따라 측정된 부피-중간 직경 Dv50이 10 내지 200 μm, 바람직하게는 30 내지 50 μm이다. 본 발명은 또한 상기 조성물의 제조 방법, 금속 기판을 코팅하기 위한 이의 용도, 및 폴리아미드계 착색 분말 조성물로 수득된 코팅으로 코팅된 금속 기판을 포함하는 물체에 관한 것이다. A pigmented pulverulent composition based on polyamide for coating substrates, including: (a) 40% to 99% by weight of at least one polyamide, (b) 1% to 30% by weight of at least one pigment, and (c) 0% to 30% by weight of at least one additive, wherein the polyamide has an inherent viscosity, as measured using an Ubbelohde tube at 20° C. on a 0.5% by weight solution in m-cresol according to standard ISO 307 but with a measuring temperature of 20° C. rather than 25° C., of more than 0.7 (g/100 g)−1, and wherein the composition has a volume-median diameter Dv50, as measured according to standard ISO 9276-parts 1 to 6, of 10 to 200 μm. A process for manufacturing the composition, the use thereof for coating a-metallic-substrate, and an object comprising a metallic substrate coated with a coating obtained with the pigmented pulverulent composition based on polyamide.