Product key points
The structural, processing and applicative properties of Lotryl® allow a wide range of use.
Two types of comonomer: methyl acrylate (Lotryl® MA resins) and butyl acrylate (Lotryl® BA resins).
Comonomer content: 17% to 35% by weight.
Melt flow index: 0.5 to 320 g/10mn (190°C - 2,16 kg)
The main properties of Lotryl® copolymers depends on molecular weight and acrylate content.
Increase acrylate content increases
The statistic introduction of acrylic esters into the polyethylene chains modifies the basic characteristics.
Crystallinity: The Lotryl® range goes from semi-crystalline products (grades with 17% of comonomer) to completely amorphous elastomers (grades up to 35%). There is no crystallinity difference between EMA and EBA copolymers.
Polarity: Increasing with the comonomer content, this characteristic is important when Lotryl® resins are formulated with low molecular weight products such as bitumen or hot melt formulations.
|Lotryl® copolymers main characteristics...||...Make them suitable for:|
|Easy to process and thermally stable||-> Extrusion coated structures, extrusion lamination|
|Flexibility||-> Films (sanitary applications), food packaging|
|Sealability||-> Sealable layer for food packaging|
|Softness||-> Impact modification of engineering plastics|
|Adhesion||-> Hot melt adhesives|
|Filler acceptance||-> Cable compounds, masterbatches|
|Low temperature properties||-> Hot melt adhesives for deep-freeze packaging|
Lotryl® is a polar copolymer. The polarity allows a good compatibility with other polymers and a large range of raw materials for hot melt adhesives such as tackifiers, waxes and plasticizers.