Method of making hydroxymethylphosphonate, polyurethane foam-forming compositions, polyurethane foam and articles made therefrom
    43.
    发明授权
    Method of making hydroxymethylphosphonate, polyurethane foam-forming compositions, polyurethane foam and articles made therefrom 有权
    制备羟甲基膦酸酯的方法,聚氨酯泡沫形成组合物,聚氨酯泡沫和由其制成的制品

    公开(公告)号:US09169278B2

    公开(公告)日:2015-10-27

    申请号:US14314810

    申请日:2014-06-25

    Abstract: A method of making hydroxymethylphosphonate comprising heating paraformaldehyde in a solvent to a desired reaction temperature, wherein the solvent is present in at least an amount necessary to solvate or suspend the paraformaldehyde; adding at least one alkyl phosphite to the heated paraformaldehyde, to provide hydroxymethylphosphonate, the alkyl phosphite being added to the heated paraformaldehyde at a rate which will avoid or inhibit the production of a significant exotherm and resulting high/significant level of acid by-product(s), there being present in the reaction medium at least one hindered amine catalyst in which the nitrogen in the amine is directly bound to a secondary and/or tertiary carbon of an organic group; and, optionally, following the completion of the addition, heating the reaction mixture to an elevated temperature.

    Abstract translation: 一种制备羟甲基膦酸酯的方法,其包括在溶剂中加热多聚甲醛至所需的反应温度,其中所述溶剂以至少一定的量存在以溶解或悬浮多聚甲醛; 向加热的多聚甲醛中加入至少一种亚磷酸烷基酯以提供羟甲基膦酸酯,亚磷酸烷基酯以可避免或抑制显着放热产生和产生高/显着水平的副产物的速率加入到加热的多聚甲醛中 在反应介质中存在至少一种受阻胺催化剂,其中胺中的氮直接与有机基团的仲碳和/或叔碳键合; 并且任选地,在完成添加之后,将反应混合物加热到升高的温度。

    POLYOLEFIN FLAME RETARDANT COMPOSITION AND SYNERGISTS THEREOF
    45.
    发明申请
    POLYOLEFIN FLAME RETARDANT COMPOSITION AND SYNERGISTS THEREOF 审中-公开
    聚烯烃阻燃剂组合物及其合成

    公开(公告)号:US20150004343A1

    公开(公告)日:2015-01-01

    申请号:US14374649

    申请日:2013-01-30

    Abstract: There is provided herein a flame-retarded polyolefin composition comprising a thermoplastic polyolefin, an inorganic flame retardant filler and a metal phosphonate or metal phosphinate synergist of the general formula (A): where Me is a metal, R1 and R2 are the same or different linear or branched or cyclic alkyls having up to 6 carbon atoms, or benzyl, n is a metal valency and can be, 1, 2, 3 or 4, x is 1 for metal phosphonates and x is 0 for metal phosphinates. There is also provided a method for making a flame-retarded polyolefin composition comprising contacting at least one thermoplastic polyolefin polymer with at least one inorganic flame retardant filler and at least one metal phosphonate or metal phosphinate synergist and heating the mixture to above the melting temperature of the thermoplastic polyolefin.

    Abstract translation: 本文提供了阻燃聚烯烃组合物,其包含热塑性聚烯烃,无机阻燃填料和通式(A)的金属膦酸盐或金属次膦酸盐增效剂:其中Me是金属,R 1和R 2相同或不同 具有至多6个碳原子的直链或支链或环状烷基或苄基,n是金属价态,并且对于金属膦酸盐可以是1,2,3或4,对于金属膦酸盐,x是0。 还提供了一种制备阻燃聚烯烃组合物的方法,其包括使至少一种热塑性聚烯烃聚合物与至少一种无机阻燃填料和至少一种金属膦酸盐或金属次膦酸盐增效剂接触,并将混合物加热至高于 热塑性聚烯烃。

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