개선된 폼 포뮬레이션

• Main Authors: YU BIN, YUAN HUIJUN PARK, WILLIAMS DAVID, LING YIU KEUNG
• Format: Patent
• Language: Korean
• Published: 19.03.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; 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; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

폴리우레탄 또는 폴리아이소시아누레이트 폼의 에이징 후의 내열성을 개선하는 방법이 개시되며, 이 방법은 아이소시아네이트 및 폴리올 프리믹스 조성물을 포함하는 발포성 조성물로부터 상기 폼을 생성하는 단계를 포함하고; 상기 폴리올 프리믹스 조성물은 폴리올 또는 폴리올들의 혼합물; 1,3,3,3-테트라플루오로프로펜(1234ze), 1,1,1,4,4,4-헥사플루오로부트-2-엔(1336mzzm) 및/또는 1-클로로-3,3,3-트라이플루오로프로펜(1233zd)으로 이루어진 군으로부터 선택되는 발포제; 및 난연제를 포함하며, 난연제는 25 phpp 이하의 포스페이트계 난연제를 포함한다. Disclosed are methods of improving the thermal resistance after ageing of a polyurethane or polyisocyanurate foam, the method comprises producing said foam from a foamable composition comprising an isocyanate and apolyol premix composition, wherein said polyol premix composition comprises apolyol or mixture of polyols, a blowing agent selected from the group consisting of 1,3,3,3-tetrafluoropropene (1234ze), 1, 1,1, 4, 4, 4-hexafluorobut-2-ene (1336mzzm) and/or 1-chloro-3, 3, 3-trifluoropropene(1233zd) and a flame retardant wherein the flame retardant comprises 25 phpp or less of a phosphate based flame retardant.