Browse Prior Art Database

Laminate Alternative V2

IP.com Disclosure Number: IPCOM000242543D
Publication Date: 2015-Jul-23
Document File: 1 page(s) / 22K

Publishing Venue

The IP.com Prior Art Database

Abstract

It has been found that a specific combination of Polypropylene (PP) and Polyethylene (PE) materials in multilayered co-ex structures can have properties very similar to that of a standard laminate structure. A standard type laminate structure would include a structure that is composed of a PE layer or layers to which an adhesive would be applied to adhere a top sheet of Polyester, PET, or PP on the outer surface. The primary reason most packers choose the standard type laminate is because of the properties that give it high stiffness and excellent gloss. The co-ex structure allows the film to have high gloss, low haze appearance yet still provide the stiff & crisp feel of a standard type laminate structure. This multilayered co-ex structure consists of 3 layers utilizing specific PP materials in the outer layer and the core layer. The seal layer is engineered using some specialized higher density PE materials. We believe this can also be done in 5-7 layer structures using the same principal and resins disclosed in the 3 layer product. In a comparison study of a 3.0 mil standard laminate structure consisting of PE on the inside layer and PET on the outer layer the following information was determined when compared to a 3.0 mil co-ex structure using the principal and materials disclosed above. The co-ex structure was found to have haze values comparable to that of a standard laminate structure. The MVTR rate of the co-ex structure was found to be better than that of the standard laminate structure. The tensile strength values were found to be near identical in the coex structure compared to the standard laminate structure. The tear strength values of the co-ex structure were found to be improved over the standard laminate structure. The "Peak Force at Break" values were found to be improved in the co-ex structure compared to that of the standard laminate structure. The co-ex product is a good alternative to standard laminated structures because it is cost effective due to the fact that the co-ex structure would eliminate the need for the lamination process and adhesives. This co-ex product is also environmentally friendly and is 100% recyclable.

This text was extracted from a Microsoft Word document.
This is the abbreviated version, containing approximately 69% of the total text.

It has been found that a specific combination of Polypropylene (PP)

and Polyethylene (PE) materials in multilayered co-ex structures can

have properties very similar to that of a standard laminate structure.

A standard type laminate structure would include a structure that is

composed of a PE layer or layers to which an adhesive would be

applied to adhere a top sheet of Polyester, PET, or PP on the outer

surface. The primary reason most packers choose the standard

type laminate is because of the properties that give it high stiffness

and excellent gloss.

   The co-ex structure allows the film to have high gloss, low haze

appearance yet still provide the stiff & crisp feel of a standard type

laminate structure. This multilayered co-ex structure consists of 3

layers utilizing specific PP materials in the outer layer and the core

layer. The seal layer is engineered using some specialized higher

density PE materials. We believe this can also be done in 5-7 layer

structures using the same principal and resins disclosed in the

 3 layer product.

   In a comparison study of a 3.0 mil standard laminate structure

consisting of PE on the inside layer and PET on the outer layer the

following information was determined when compared to a 3.0 mil

co-ex structure using the principal and materials disclosed above.

The co-ex structure was found to have haze values comparable to

that of a standard laminate structure. The MVTR rate of the co-ex

structure was found to be better than that of the stan...