composition for manufacturing polyurethane foam and molded article thereof

• Main Authors: LIM, BYUNG GUK, CHOI, KWON YONG, LEE, IL GON, JUNG, SOON JOON, LEE, DONG UK, PARK, JAE BEOM, LEE, SUNG HYUN
• Format: Patent
• Language: English; Korean
• Published: 17.10.2017
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

본 발명은 정적, 동적 안락감이 향상된 자동차 시트패드 제조용 폴리우레탄 조성물에 관한 것으로, 구체적으로 폴리에테르 폴리올(a1) 및 폴리머 폴리올(a2)이 소정량 혼합된 폴리올 혼합물(A), 톨루엔디이소시아네이트(Toluene diisocyanate)의 사용 없이 메틸렌디페닐이소시아네이트(M-MDI)과 폴리메틸렌디페닐디이소시아네이트(P-MDI)의 이소시아네이트 혼합물(b1)에 특정 범위의 중량평균분자량을 가지는 폴리에스테르 폴리올(b2)과 중합하여 얻은 이소시아네이트 화합물, 및 첨가제로 이루어진 폴리우레탄 제조용 조성물 및 이에 의해 제조된 자동차 시트패드인 성형품에 관한 것이다. Disclosed are a polyurethane composition, a molded article, and a vehicle comprising the polyurethane composition or the molded article. The polyurethane composition comprises a polyol composition (A) in which polyether polyol (a1) and polymer polyol (a2) are mixed at a predetermined amount, an isocyanate composition (B) obtainable by polymerizing polyether polyol (b2) and an isocyanate composition (b1) that comprises i) methylene diphenyl isocyanate (M-MDI) and ii) polymethylene diphenyl isocyanate (P-MDI). As such, the molded article such as a vehicle seat pad can be manufactured with improved static and dynamic comfort.