THERMOPLASTIC POLYURETHANE HOT MELT ADHESIVE

• Main Authors: SLARK ANDREW, BERGERET AURELIE
• Format: Patent
• Language: English; Korean
• Published: 02.02.2017
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES; WORKING-UP

열가소성 폴리우레탄 코폴리머를 포함하는 핫 멜트 접착제 조성물로서, 이때 열가소성 폴리우레탄 코폴리머는 하나 이상의 폴리에스테르 폴리올; 및 하나 이상의 폴리이소시아네이트의 반응 생성물을 포함하고; 폴리이소시아네이트의 NCO 기 대 폴리에스테르 폴리올의 OH 기의 몰 비는 0.95:1 미만이고; 열가소성 폴리우레탄 코폴리머의 점도는 160℃ 에서 1,000 내지 100,000 mPas 이고; 열가소성 폴리우레탄 코폴리머는 열적으로 안정한 (여기서 열적 안정성은 160℃ 에서 6 시간 후의, 열가소성 폴리우레탄 코폴리머의 초기 점도와 비교시 점도 변화가 ± 10% 미만인 것으로서 정의됨) 핫 멜트 접착제 조성물. A hot melt adhesive composition comprising a thermoplastic polyurethane copolymer, wherein the thermoplastic polyurethane copolymer comprises a reaction product of at least one polyester polyol; and at least one polyisocyanate; wherein the molar ratio of the NCO groups of the polyisocyanate to the OH groups of the polyester polyol is less than 0.95:1; wherein the viscosity of the thermoplastic polyurethane copolymer is 1,000 to 100,000 mPas at 160°C; wherein the thermoplastic polyurethane copolymer is thermally stable; and wherein the thermal stability is defined as a viscosity change of less than ± 10 % compared to the initial viscosity of the thermoplastic polyurethane copolymer after 6 hours at 160 °C.