Process of (co)polymerization of .alpha.-olefins in the presence of
stabilizers
    3.
    发明授权
    Process of (co)polymerization of .alpha.-olefins in the presence of stabilizers 失效
    在稳定剂存在下,α-烯烃(共)聚合的方法

    公开(公告)号:US5350786A

    公开(公告)日:1994-09-27

    申请号:US26097

    申请日:1993-03-04

    IPC分类号: C08F2/44 C08F10/00 C08K5/3435

    CPC分类号: C08F10/00 C08F110/06

    摘要: Stabilizers for organic polymers, consisting of one or more compounds of the classis of the sterically hindered amines (HALS) are directly added to the reaction mixture during the (co)polymerization of the .alpha.-olefins or of their mixtures with other unsaturated monomers.The so-obtained polymeric compositions result perfectly stabilized and show a thermo- and photo-oxidative resistance higher than that of the same polymeric compositions to which the same stabilizers are added by a traditional route.

    摘要翻译: 在α-烯烃或其混合物与其它不饱和单体的(共)聚合过程中,直接将有机聚合物的稳定剂(由空间位阻胺类的一种或多种化合物(HALS)组成)直接加入到反应混合物中。 如此获得的聚合物组合物完全稳定,并且显示比通过传统路线添加相同稳定剂的相同聚合物组合物的热和光氧化抗性更高。

    Process for the synthesis of allylated derivatives of
2,2,6,6-tetraalkylpiperidinols
    4.
    发明授权
    Process for the synthesis of allylated derivatives of 2,2,6,6-tetraalkylpiperidinols 失效
    合成2,2,6,6-四烷基哌啶醇的烯丙基化衍生物的方法

    公开(公告)号:US5270470A

    公开(公告)日:1993-12-14

    申请号:US481725

    申请日:1990-02-16

    IPC分类号: C07D211/46 C07D211/36

    CPC分类号: C07D211/46

    摘要: A process is disclosed for the synthesis of 4-allyloxy-2,2,6,6-tetraalkylpiperidinic derivatives by starting from the corresponding 2,2,6,6-tetraaLkyLpiperidinols and from an allyl halide, characterized in that the reaction is made to take place in the absence of water, and in the presence of a finely subdivided allyl-metal hydroxide and of small amounts of a phase-transfer catalyst. The products, which are thus obtained with yields higher than 90%, are useful a stabilizers for polymers or as intermediates for such products.

    摘要翻译: 公开了用于合成4-烯丙氧基-2,2,6,6-四烷基哌啶衍生物的方法,由相应的2,2,6,6-四氢基哌啶醇和烯丙基卤开始,其特征在于使反应生成 在不存在水的情况下进行,并且在细分的烯丙基 - 金属氢氧化物和少量的相转移催化剂的存在下进行。 因此获得的产率高于90%的产品可用作聚合物的稳定剂或作为这种产品的中间体。

    Polyamide Compositions Flame Retarded with Aluminium
    9.
    发明申请
    Polyamide Compositions Flame Retarded with Aluminium 有权
    聚酰胺组合物用铝阻燃

    公开(公告)号:US20080033079A1

    公开(公告)日:2008-02-07

    申请号:US10585421

    申请日:2004-01-07

    IPC分类号: C08L77/00 C08K3/32 C08K5/3492

    CPC分类号: C08K3/32 C08L77/00

    摘要: The present invention relates to a thermoplastic composition comprising at least aluminium hypophosphite (aluminium phosphinate), corresponding to the chemical formula Al(H2PO2)3 as halogen-free flame retardant agent, and at least a polymer based on polyamide. The flame retarded halogen-free thermoplastic moulding compositions according to the invention is used to produce articles based on polyamide polymers with or without glass fiber reinforcement, which are flame retarded.

    摘要翻译: 本发明涉及一种热塑性组合物,其包含至少次磷酸铝(次膦酸铝),其对应于化学式Al(H 2 PO 3)3 SUB>作为无卤阻燃剂,和至少一种基于聚酰胺的聚合物。 根据本发明的阻燃无卤素热塑性模塑组合物用于生产基于具有或不具有阻燃性的玻璃纤维增​​强剂的聚酰胺聚合物的制品。

    Polyolefin compositions stabilized against UV light radiations with
open-chain hindered amines
    10.
    发明授权
    Polyolefin compositions stabilized against UV light radiations with open-chain hindered amines 失效
    使用开链受阻胺稳定抗紫外线辐射的聚烯烃组合物

    公开(公告)号:US4321190A

    公开(公告)日:1982-03-23

    申请号:US213656

    申请日:1980-12-05

    IPC分类号: C08L23/00 C08K5/17 C08L101/00

    CPC分类号: C08K5/17

    摘要: This invention relates to particular polyolefin compositions which contain, as stabilizers against UV-light radiations, open-chain amine compounds which are hindered in the alpha-position by alkyl radicals, said amine compounds corresponding to the following general formula: ##STR1## wherein R', R", R"', R.sup.IV, R.sup.V and R.sup.VI which can be equal or different, are radicals of aliphatic hydrocarbons with a number of C-atoms variable from 1 to 20, or can be hydrogen atoms, n is an integer variable from 2 to 12, and n' is an integer comprised between 1 and 15.

    摘要翻译: 本发明涉及特定的聚烯烃组合物,其包含作为UV光辐射的稳定剂的通过烷基阻碍在α-位上的开链胺化合物,所述胺化合物对应于以下通式:其中R 可以相同或不同的R',R“',RIV,RV和RVI是C原子数可以为1至20的脂肪族烃基,或者可以是氢原子,n是 整数变量从2到12,n'是1到15之间的整数。