2 results about "Decene" patented technology

A multi-layer packaging film is provided having at least four layers arranged in sequence comprising: (1) a heat-sealing first layer comprising at least 50% by weight of a copolymer of propene, and at least one α-olefin selected from the group consisting of ethylene, butene-1, methylpentene-1, hexene-1, octene-1, decene-1 and mixtures thereof, said copolymer having a propene content of at least 60 wt. %, a Tm between about 100° C. and about 145° C., a Mw/Mn of between 1 and 5, and n-hexane extractables of less than 4 wt. %; (2) second and fourth layers each comprising (a) at least 10 wt. % of a first copolymer of ethylene and at least one C₄-C₈ α-olefin, said copolymer having a density of from 0.900 to 0.915 g/cm³ and a melt index of less than 2 dg/min., (b) at least 10 wt. % of a second copolymer of ethylene with from 4 to 18 wt. % of a vinyl ester, alkyl acrylate, acrylic or methacrylic acid, and (c) from 0 to 60 wt. % of a third copolymer of ethylene and at least one C₃-C₈ α-olefin having a density less than 0.900 g/cm³ and a melting point less of between 65-98° C.; and (3) a third layer comprising at least 80% by weight of at least one copolymer of vinylidene chloride with from 2-20 wt. % (based on said copolymer) of vinyl chloride or methyl acrylate.

The invention discloses a method for preparing hexyl-dioctyl phosphorus oxide. The method comprises the following steps: adding dioctyl phosphorus oxide, 1-hexene, an acetic acid solvent and di-tert-butyl peroxide in a PTFE (Polytetrafluoroethylene) reaction kettle, adding a small amount of industrial mixed decene, stirring and dissolving, rising the temperature to be 130 to 140 DEG C, reacting for 12 to 36 hours, detecting and completely reacting under <31>P-NMR (Nuclear Magnetic Resonance), adding 5 to 15 weight percent of diluted hydrochloric acid in a reaction solution for carrying out demulsifying and washing, extracting by using trichloromethane, washing an organic layer to be neutral by using water, evaporating to remove trichloromethane and unreacted olefin through a rotary evaporator, recrystalizing by using ethanol, filtering, and carrying out vacuum drying, thus obtaining white solid. The method for preparing hexyl-dioctyl phosphorus oxide, disclosed by the invention, is simple in steps, is green and environmentally friendly and is good in atom economy, a product is high in purity, separation is easy, and an industrial prospect is obtained; the product is applied to industries of water quality detection and sewage treatment.