A latent mercaptan as a heat stabilizer
    3.
    发明公开
    A latent mercaptan as a heat stabilizer 审中-公开
    甲潜在硫醇作为热稳定剂

    公开(公告)号:EP1367090A3

    公开(公告)日:2006-06-07

    申请号:EP03077442.6

    申请日:1999-03-25

    摘要: Flexible, semi-rigid, and rigid vinyl chloride polymer compositions comprising a latent mercaptan-containing heat stabilizer are substantially free from the offensive odour typically associated with mercaptans and are protected during processing by the degradation products of the latent (i.e., blocked) mercaptan which include a free mercaptan. The free mercaptan thus released enhances the activity of metallic-based heat stabilizers such as zinc carboxylates and organotin carboxylates and mercaptides in the polymer composition. Other products of the degradation are believed to include carbocations of the blocking moiety which are stabilized by a molecular structure in which the electron deficiency is shared by several groups. The latent mercaptan is selected from a 2-S-(tetrahydropyranyl)-thioalkanol, a carboxylic acid ester thereof, a 2-S-(tetrahydropyranyl)-thioglycolic acid, and an ester thereof.

    CONFORMABLE FILMS AND ARTICLES MADE THEREFROM
    7.
    发明公开
    CONFORMABLE FILMS AND ARTICLES MADE THEREFROM 审中-公开
    可调薄膜和物品由其MADE

    公开(公告)号:EP1355782A4

    公开(公告)日:2004-04-21

    申请号:EP01987516

    申请日:2001-12-21

    摘要: This invention relates to a vinyl halide film comprising (A) at least one vinyl halide polymer, (B) at least one non-halogenated polymeric plasticizer and (C) at least one second plasticizer, wherein a major amount of the polymers of the film comprise the vinyl halide polymer (A) and wherein the film has an elongation of at least about 50%. The invention also relates to an adhesive article comprising a pressure sensitive adhesive layer having a first and second surface, and a vinyl halide film adhered to the first surface of the adhesive layer, wherein the vinyl halide film comprises (A) at least one vinyl halide polymer, (B) at least one non-halogenated polymeric plasticizer and (C) at least one second plasticizer, wherein the adhesive article has an elongation of at least about 50%. The invention also includes a plastisol, useful for preparing vinyl halide films, comprising (A) at least one vinyl halide polymer, (B) at least one non-halogenated polymeric plasticizer, (C) at least one second plasticizer, and (D) at least one solvent. The film and subsequent articles derived therefrom have improved conformability. Additionally, the film is a castable film. The films and articles are useful in exterior graphics applications, including graphics for vehicles, especially vehicles with corrugated side panels.