Abstract:
A multi-layer laminate containing a layer of a polypropylene material permanently bonded to an imine primed substrate is disclosed. This laminate contains a layer that is a blend of maleated high molecular weight polypropylene/low density polyethylene and a second layer that is substrate, such as nylon, that is primed with an imine primer such as polyethyleneimine.
Abstract:
Novel polyethylene compositions comprising a blend of a polyethylene component having defined properties, a specific quantity of defined tackifying resins and defined quantities of thermally sensitive additives are disclosed. In addition, process for extrusion coating at high speeds and relatively low extrusion coating temperatures employing invention compositions is disclosed.
Abstract:
Novel polyethylene compositions comprising a blend of a polyethylene component having defined properties and a specific quantity of defined tackifying resins are disclosed. In addition, process for extrusion coating at high speeds and relatively low extrusion coating temperatures employing invention compositions is disclosed.
Abstract:
Polyethylene blends that are useful as extrusion coatings on various substrates. The blends are prepared from 10% to 90% by weight of a high density polyethylene and from 90% to 10% by weight of a low density polyethylene. The blends have a melt index of 0.1 to 7, a density of 0.912 to 0.98, a swell ratio less than 1.5 and DSC melting point greater than a homopolymer of ethylene having the density of the blend.
Abstract:
Novel polypropylene compositions are disclosed which display good adhesion to a variety of substrates and which are capable of melt-bonding. Invention compositions can optionally be combined with extrusion coating grade polyethylene and employed for extrusion coating. Invention composition is also useful for injection molding employing multi-gated injection molding apparatus.
Abstract:
Polyolefin compositions containing thermally degraded crystalline propylene polymer and low density polyethylene. Such compositions exhibit a high flow rate and are particularly useful for extrusion coating. They have good coatability and provide coatings having good heat sealability. Coated substrates formed using such compositions are particularly useful in fabricating bags and in other packaging applications. Examples of compositions disclosed are blends of thermally degraded crystalline polypropylene or propylene/ethylene copolymer with low density polyethylene.
Abstract:
Nouvelles compositions de polyéthylène comprenant un mélange d'un composant de polyéthylène ayant des propriétés définies, une quantité spécifique de résines collantes définies et des quantités prédéterminées d'additifs thermosensibles. De plus, l'invention concerne un procédé de revêtement par extrusion à des vitesses élevées et des températures de revêtement par extrusion relativement basses utilisant les compositions décrites dans l'invention.
Abstract:
Mélanges de polyéthylène utiles en tant que revêtement par extrusion sur divers substrats. Les mélanges sont préparés à partir de 10 % jusqu'à 90 % en poids d'un polyéthylène de densité élevée et à partir de 90 % jusqu'à 10 % en poids d'un polyéthylène de faible densité. Les mélanges ont un indice de mélange de 0,1 à 7, une densité de 0,912 à 0,98, un rapport de gonflement inférieur à 1,5 et un point de fusion DSC supérieur à celui d'un homopolymère d'éthylène ayant la densité du mélange.
Abstract:
Novel polyethylene compositions comprising a blend of a polyethylene component having defined properties and a specific quantity of defined tackifying resins are disclosed. In addition, process for extrusion coating at high speeds and relatively low extrusion coating temperatures employing invention compositions is disclosed.