SILICONE STABILIZERS FOR FLAME-RETARDED RIGID POLYURETHANE OR POLYISOCYANURATE FOAMS
    9.
    发明申请
    SILICONE STABILIZERS FOR FLAME-RETARDED RIGID POLYURETHANE OR POLYISOCYANURATE FOAMS 审中-公开
    用于阻燃刚性聚氨酯或聚异氰酸酯纤维素的硅酮稳定剂

    公开(公告)号:US20080125503A1

    公开(公告)日:2008-05-29

    申请号:US11771496

    申请日:2007-06-29

    IPC分类号: C08L75/04 C08J9/00 C08G77/00

    摘要: The invention relates to a process for producing rigid polyurethane or polyisocyanurate foams by reacting an isocyanate with a polyol in the presence of urethane and/or isocyanurate catalysts, water, optionally further blowing agents, optionally flame retardants and optionally further additives (e.g. fillers, emulsifiers, purely organic stabilizers and surfactants, viscosity reducers, dyes, antioxidants, UV stabilizers, antistatics) using foam stabilizers of the general formula (I) R—Si(CH3)2—O—[—Si(CH3)2—O—]n—[—Si(CH3)(R)—O—]m—Si(CH3)2—R, where R=—(CH2)x—O—(CH2—CHR′—O)y—R″.

    摘要翻译: 本发明涉及通过在氨基甲酸酯和/或异氰脲酸酯催化剂,水,任选的另外的发泡剂,任选的阻燃剂和任选的其它添加剂(例如填料,乳化剂)的存在下使异氰酸酯与多元醇反应制备硬质聚氨酯或聚异氰脲酸酯泡沫的方法 ,纯的有机稳定剂和表面活性剂,粘度降低剂,染料,抗氧化剂,UV稳定剂,抗静电剂),使用通式(I)的R-Si(CH 3 3)2的/ > -O - [ - Si(CH 3 3)2 -O - ] n - - - - (Si 3 CH 3) (R)-O - ] m -Si(CH 3)2 - ,其中R = - (CH

    Silicone stabilizers for rigid polyurethane or polyisocyanurate foams
    10.
    发明授权
    Silicone stabilizers for rigid polyurethane or polyisocyanurate foams 有权
    用于刚性聚氨酯或聚异氰脲酸酯泡沫的硅氧烷稳定剂

    公开(公告)号:US08957121B2

    公开(公告)日:2015-02-17

    申请号:US13328135

    申请日:2011-12-16

    摘要: A polyether siloxane of formula (I) R1—Si(CH3)2—O—[-Si(CH3)2—O—]n—[-Si(CH3)R—O—]m—Si(CH3)2—R2  (I) where R, R1 and R2 are the same or different, R in each occurrence is the same or different and represents —(CH2)x—O—(CH2—CR′R″—O)y—R′″, R′ and R″ are the same or different and each represent —H, —CH3, —CH2CH3 or phenyl, R′″ represents —H, alkyl or acyl, R1 and/or R2 each represent methyl or R, wherein the alkylene oxide units (CH2—CR′R″—O) within a polyether residue R can be the same or different and the polyether residues R within a polyether siloxane molecule of formula (I) can be the same or different, wherein on average (number average, averaged over all compounds of formula (I)) n+m+2=>10 to 200, m=0 to 40 for R1 and/or R2 representing R or m=1 to 40 for R1 and R2 representing —CH3, x=2 to 10, y=1 to 50, at least 25% of the R′″ radicals represent hydrogen and at least 50% of all polyether residues R which have an end group R′″=—H have a secondary or tertiary OH end group. The polyether siloxane has almost no primary but overwhelmingly secondary or tertiary OH groups.

    摘要翻译: 式(I)的聚醚硅氧烷R1-Si(CH3)2-O - [ - Si(CH3)2-O-] n - [ - Si(CH3)R-O-] m-Si(CH3)2- R2(I)其中R,R1和R2相同或不同,R在每次出现时相同或不同,表示 - (CH 2)x -O-(CH 2 -CR'R“-O)y -R' ,R'和R“相同或不同,各自表示-H,-CH 3,-CH 2 CH 3或苯基,R”“表示-H,烷基或酰基,R 1和/或R 2各自表示甲基或R”,其中亚烷基 聚醚残基R内的氧化物单元(CH2-CR'R“-O)可以相同或不同,式(I)的聚醚硅氧烷分子内的聚醚残基R可以相同或不同,其中平均(数 对于所有式(I)化合物,n + m + 2 => 10〜200,m = 0〜40,R表示m = 0〜40,R表示m = 1〜40,R 2表示-CH 3, x = 2至10,y = 1至50,至少25%的R'“基团代表氢,并且所有聚醚残基R的至少50%具有 端基R'“= -H具有仲或叔OH端基。 聚醚硅氧烷几乎没有主要但绝大多数是次级或叔OH基团。