首页> 外国专利> Heat and light stabilisers for polymer(s) - such as polyamide(s), PVC, polyolefin(s), etc. comprise bis-amide(s) of squaric acid

Heat and light stabilisers for polymer(s) - such as polyamide(s), PVC, polyolefin(s), etc. comprise bis-amide(s) of squaric acid

机译:聚合物(例如聚酰胺,PVC,聚烯烃等)的热稳定剂和光稳定剂包含方酸的双酰胺

摘要

Polymers are stabilised by incorporating bis-amides of quadric acid of formula (I) or (II) (where R1-4 each (A) H or opt. substd. 1-22C alk(en)yl =1 of which may be replaced by heteroatoms; (B) opt. substd cycloalkyl(alkenyl) (C) opt. subst std. ary(alkyl); (D) opt. substd. 3-8 ring contg. hetero atom(s) and opt. bound to the N atoms in (I) or (II) by alkylene or (E) -NR1-R2 and/or -NR3R4 which may be opt. substd. 3-8 rings opt. substd. by other heteroatoms. or (F) R1 and R2 or R3 and R4 may be (un)branched, (un)satd. cyclic condensed aliphatic chains. The stabilisers are added at 0.01-5 wt.% to homo-and copolymers of (di)olefins, vinyl acetate, etheresters, urethanes, isocyanurates or acrylonitrile; homopolymers, copolymers and graft copolymers of styrene and its homologues or of vinyl chloride; (co)polyamides; polyesteramide and polyetheresteramides. The stabilisers gibe simultaneous protection against degradation by heat, UV light, oxygen and hydrolysing liquids such as (in)organic acids and alkalis, and are esp. useful for incorporation into articles designed for extended periods of outdoor exposure.
机译:通过掺入式(I)或(II)的四酸的双酰胺来稳定聚合物(其中R 1-4分别为(A)H或优选取代的1-22C烷(烯)基,其中≥1可以为被杂原子取代;(B)选择为环烷基(C)选择基;(D)选择为3-8环续杂原子且选择键合(I)或(II)中的N原子被亚烷基或(E)-NR1-R2和/或-NR3R4取代,其可以优选被3-8个环取代或被其他杂原子或(F)R1取代R 2或R 3和R 4可以是(未)支链,(未)饱和的环状稠合脂族链。将稳定剂以0.01-5 wt。%的量添加到(二)烯烃,乙酸乙烯酯,醚酯的均聚物和共聚物中,氨基甲酸酯,异氰脲酸酯或丙烯腈;苯乙烯及其同系物或氯乙烯的均聚物,共聚物和接枝共聚物;(共)聚酰胺;聚酯酰胺和聚醚酯酰胺。有机的酸和碱,尤其是可用于掺入长时间户外暴露的物品中。

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