摘要:
Polymer compositions that can be useful as sealants for peelably and/or permanently sealed packages are provided. The polymer compositions comprise at least one ethylene copolymer and at least one propylene polymer. Also provided are packages sealed with the compositions of the invention, and methods of making packages comprising the compositions of the invention.
摘要:
A composition suitable for thermoforming which demonstrates good grain retention at thin gauges, low gloss and whose cost is competitive for many applications, particularly in the automotive industry, is described. This composition contains (a) 10-35 wt.% of polypropylene or an ethylene/propylene copolymer, (b) 0-30 wt.% uncrosslinked ethylene propylene copolymer rubber having an ethylene content 60-80 wt.%, (c) 10-25 wt.% of an ionomeric copolymer of ethylene and an α, β-unsaturated C3-C8 carboxylic acid, (d) 2-6 wt.% of a copolymer of ethylene and glycidyl acrylate or glycidyl methacrylate, (e) 5-20 wt.% polyethylene, and (f) 0-25 wt.% of an ethylene alpha-olefin copolymer elastomer.
摘要:
A thermoformable multi-layer sheet is disclosed, which comprises or is produced from a first co-extruded clear polymeric layer comprising an ionomer resin; a second co-extruded polymeric layer; a third co-extruded thermoformable polymeric adhesive layer that is in direct contact with the second co-extruded layer and a backing layer; and a co-extruded backing layer adhered to the adhesive layer. Also disclosed is a product such as an auto part, a truck part, an auto or truck body panel, or a part or panel of a recreational vehicle having a Class A surface that can comprise or be produced from the multi-layer sheet.
摘要:
Films comprising a liquid-absorbent layer with an adsorbed antimicrobial material and an impermeable layer are provided. The films can be suitable for preparation of tubular casings and shrinkbags such as casings for foodstuffs. Also disclosed are foodstuffs processed in the tubular casing comprising the antimicrobial material.
摘要:
A sealing material for a thermoplastic packaging film for applications such as meat, poultry and sausage packages that have to be subject to moderate heat treatments common in processes such as pasteurization or sterilization. The sealing material includes a composition of a copolymer of ethylene and an α,β-unsaturated C3-C8 carboxylic acid, optionally neutralized and optionally containing an acrylate and a semicrystalline and/or amorphous polyamide.
摘要:
Des compositions thermoplastiques à base de térephtalate de polybutylène sont utiles pour les applications concernant les revêtements de câbles devant résister aux températures élevées. Elles comprennent généralement des alliages à quatre composants contenant: a) 40 à 65 % en poids de poly(térephtalate de 1,4-butylène); b) 1 à 30 % en poids d'un agent de greffage polymérique qui est un copolymère d'éthylène servant de vecteur à des groupes réactifs; c) 0 à 20 % en poids d'un ionomère de copolymère d'éthylène; d) au moins un composant sélectionné parmi un uréthane de copolyester, un ester de copolyéther, un copolymère de l'ensemble styrène/diène hydrogéné éventuellement greffé avec de l'anhydride maléique, un produit d'addition d'anhydride maléique et un copolymère d'éthylène ou un polymère à base d'élastomère modifié par un acrylique.
摘要:
An antistatic styrenic polymer compositions comprises 30 to 70 wt % of a styrenic polymer, 5 to 40 wt % of a potassium ionomer, 1 to 10 wt % of one or more polyols, and 2 to 20 wt % of an ethylene copolymer, based on the total weight of the styrenic polymer composition which, if compared with compositions of the state of the art, shows reduced dust absorption and improved mechanical performances. Also disclosed are articles made of the composition such as film or sheet including multilayer structure and items obtained by extrusion molding, coextrusion molding, injection molding, thermoform molding, compression molding or blow molding.
摘要:
A sealing material for a thermoplastic packaging film for applications such as meat, poultry and sausage packages that have to be subject to moderate heat treatments common in processes such as pasteurization or sterilization. The sealing material includes a composition of a copolymer of ethylene and an alpha , beta -unsaturated C3-C8 carboxylic acid, optionally neutralized and optionally containing an acrylate and a semicrystalline and/or amorphous polyamide.
摘要:
This invention is directed to the discovery that ethylene - acid copolymers that have low melt flow index MFI (namely less than 100 g/10 min measured according to ASTM D1238 at 190 °C, 2.16kg) even with low acid content (such as less than 20 wt.%) can provide stable aqueous dispersions directly in aqueous media (i.e. free from any other solvent) with less than 1 wt.% non-dispersibles in single bases even at mild dispersion process conditions, at temperature less than 100 °C, atmospheric pressure, and with low agitation speed.