E.i. Dupont De Nemours and Company

Geraldine Marie Lenges

Richard Allen Hayes

Steven C Pesek

Charles Anthony Smith

Richard James Arhart

Sam Louis Samuels

Jerrel Charles Anderson

Timothy A Libert

Jacques Roulin

David C Urian

Diego Boeri

The present invention is an optically transparent laminate film comprising: at least three layers of film, wherein at least two of the at least three layers comprise ionomeric films, and wherein the film can be suitable for use in a photovoltaic cell or in packaging.

Multilayer composite films and articles prepared therefrom

The present invention provides a solar cell module comprising at least one encapsulant layer which has 1) a total thickness of from about 0.1 to about 20 mils and 2) at least one surface layer made of ionomers containing a finite amount of polymerized residues of &#x3b1;-olefins and from about 18 to about 25 wt % of polymerized residues of &#x3b1;,&#x3b2;-ethylenically unsaturated carboxylic acids. The present invention also provides a process of manufacturing the solar cell module.

Solar cell encapsulant layers with enhanced stability and adhesion

The present invention is a film obtained from a blend of chemically distinguishable copolymers, wherein the film has a light transmission of at least 85%, and/or a haze of less than 6%, and wherein the blend comprises a component copolymer has a secant modulus of less than 15,000 when cast independently into a film.

Transparent ionomeric films from blends of ionomeric copolymers

An article comprises a plurality of core tubes having coated thereon an insulating wall, a water-blocking layer, a conduit, and an outer jacket. The core tube comprises one or more conductors and is each surrounded by the insulating wall. The core tube can be wrapped with the insulating wall by any means known to one skilled in the art similar to electrical wire making. The insulating wall can be surrounded by the water-blocking layer. The role of the insulating wall is to protect the conductors from external mechanical damage, moisture penetration, and to provide electrical insulation. Such wall can comprise a continuous matrix, generally made of a polymer, optionally containing filler particles that may be inorganic.

Compositions comprising ethylene copolymer

The present invention provides a pre-formed bi-layer thermoplastic film or sheet comprising a first surface layer made of acid copolymers, or ionomers, or combinations thereof and a second surface layer made of ethylene acrylate ester copolymers, a solar cell pre-laminate assembly comprising the same, and a simplified process for manufacturing a solar cell module derived therefrom.

Low modulus solar cell encapsulant sheets with enhanced stability and adhesion

The present invention is photovoltaic (solar) cell module comprising a multilayer laminate ionomer film as an encapsulant layer wherein the laminate has a light transmission of at least 85%, and or a haze of less than 6%, and wherein the laminate has a modulus of less than 15,000 psi.

Multilayer ionomer films for use as encapsulant layers for photovoltaic cell modules

A thermoplastic film or sheet having a thickness of about 1 mil (0.026 mm) to about 20 mils (0.51 mm) containing a surface embossed layer comprising a copolymer of alpha olefin(s) with alpha, beta ethylenically unsaturated carboxylic acid comonomer(s), ionomers derived therefrom and combinations thereof useful for making solar cell laminates, wherein the surface is embossed with a pattern which provides channels for de-airing, the channels having depth of about 20 microns or less, a width of about 30 microns to about 300 microns and spaced about 0.1 mm to about 1 mm apart, and use thereof in photovoltaic cells and the manufacture thereof.

Embossed high modulus encapsulant sheets for solar cells

The present invention provides a thermoplastic film or sheet comprising two surface layers made of acid copolymers, or ionomers, or combinations thereof and at least one inner layer made of ethylene acrylate ester copolymers, a solar cell module comprising at least one encapsulant layer derived therefrom, and a process of manufacturing the solar cell module.

The present invention is linear polyethylene composition suitable for use as a heat seal resin, wherein the resin comprises: (a) from about 70 wt % to about 90 wt % of a linear polyethylene having a density of from about 0.88 to about 0.92 g/cm; (b) from about 0 wt % to about 30 wt % of a copolymer of ethylene and an &#x3b1;,&#x3b2;-unsaturated carboxylic acid and/or an ionomer thereof; and, (c) from about 2 wt % to about 10 wt % of a tackifier.

Heat seal modifiers for linear polyethylenes

Ethylene is polymerized by novel nickel or iron complexes of selected novel 2,2-bipyridine-6-imines, optionally with the addition of other cocatalysts. The polymers are useful for films and molding resins.

Growing community of inventors

Wilmington, DE, United States of America

Geraldine Marie Lenges