Multilayer plastic structures, containers made therefrom and...

Details Multilayer plastic structures, containers made therefrom and... Multilayer plastic structures, containers made therefrom and...

B - Operations, Transporting

29

D

B29D 23/20 (2006.01) B32B 27/20 (2006.01)

Patent

CA 2366454

An improved coextruded asymmetric multilayer plastic structure and method of forming the same are provided. The layers of the structure consist of a barrier layer comprised of an ethylene vinyl alcohol copolymer, an adhesive layer on each surface of the barrier layer, inner and outer surface layers, and a bulk layer positioned between the outer surface layer and its adjacent adhesive layers. The bulk layer is comprised of a thermoplastic polymer and calcium carbonate in an amount sufficient that the multilayer structure has an acceptable level of curling. The structure can be used to form a tubular body that has a cylindrical shape. A collapsible dispensing container having a body wall formed of the aforementioned structure and having improved product dispense properties is also provided.

L'invention porte sur une structure en plastique multicouche asymétrique coextrudée et sur son procédé de fabrication. Les couches de la structure comprennent une couche barrière constituée d'un copolymère d'éthylène alcool de vinyle, d'une couche adhésive sur chaque surface de la couche barrière, des couches superficielles interne et externe et une couche de faible masse volumique placée entre la surface externe et les couches adhésives adjacentes. La couche à faible masse volumique comprend un polymère thermoplastique et un carbonate de calcium dans une quantité suffisante de sorte que la structure multicouche ait un niveau d'enroulement acceptable. La structure peut être utilisée pour former un corps tubulaire de forme cylindrique. Un réceptacle de distribution repliable constitué d'une paroi formée dans la structure précitée et possédant des propriétés de distribution de produit améliorées est également décrit.

Affiliated with

Also associated with

Rating

Multilayer plastic structures, containers made therefrom and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multilayer plastic structures, containers made therefrom and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilayer plastic structures, containers made therefrom and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1829253