E.i. Dupont De Nemours and Company

Dupont Electronics, Inc.

Sigma Laboratories of Arizona, Inc.

Jose Manuel Rodriguez-Parada

Mark E Lewittes

Marc Bruce Goldfinger

Lee A Silverman

Angelo Yializis

Roger Harquail French

Michael G Mikhael

Ioannis V Bletsos

Kai Qi

Ronald Jack Riegert

Minfang Mu

Dan Feng

Kostantinos Kourtakis

Joseph Anthony King, Jr

Edmee Lydie Marie-Jeanne Devaquet

Andrew Edward Feiring

Ming-Hong Hung

Sheau-Hwa Ma

Jose Esteban Valentini

Mark Weinberg

Gordon Mark Cohen

Gregory T Dee

Chitrangad

Roger John Zipfel

Rebekah Ann Derryberry

Maria Petrucci-Samija

Disclosed herein are coated copper particles formed of copper cores that are surface coated with a coating composition comprising one or more conductive oxides. Further disclosed herein are electrically conductive adhesives (ECA) comprising: (a) organic binder, (b) surface coated copper particles, and optional (c) solvent.

Coated copper particles and use thereof

Disclosed herein are electrically conductive adhesives (ECA) comprising: (a) organic binder, (b) electrically conductive powders comprised of silver particles and surface coated copper particles, and optional (c) solvent.

Electrically conductive adhesives

Disclosed herein are electrically conductive adhesives (ECA) comprising: (a) organic binder, (b) electrically conductive powders comprised of surface coated spherical copper particles and surface coated flaky copper particles, and optional (c) solvent.

An optical element has a plano-plano body formed of a first material having a greater refraction index nand a second material having a lesser refraction index n. Both indices are greater than one. The absolute value of the index contrast, log(n/n), is in the range from about 0.001 to about 0.17, preferably from about 0.01 to about 0.05. The materials have an induced absorbance rate &#x394;Abs/Dose less than or equal to about 0.4, preferably less than or equal to about 0.2. The materials are arranged such that an interface with at least one cusp is defined therebetween. The cusp has an apex pointed toward the material having the greater index of refraction. The cusp is operative to produce a region of increased light intensity on one surface of the optical element in response to light incident on the other surface of the optical element.

Optical element producing a modulated region of increased light intensity and optically enhanced photovoltaic cell and LED lighting device including the same

A photovoltaic assembly includes an optical element comprising a body having opposed planar major surfaces with a plurality of open-mouthed inclusions (grooves) formed on the light output surface. Each groove has a closed apex with an included apex angle. The body is formed from a material having an index of refraction of at least 1.3 and an induced absorbance rate &#x394;Abs/Dose less than or equal to about 0.4. The optical element is attached to a photovoltaic cell using an adhesive having an index of refraction in the range from about 1.34 to 1.50. The apex angle is selected such that light incident upon the body is conveyed the light output surface by the mechanism of total internal reflection from the boundary walls of the grooves and/or without retro-reflection toward the incident surface. The thickness of the adhesive layer and the dimension of the mouth of the grooves are selected such that light incident on the surface of the photovoltaic cell is not obscured by conductor lines on the cell's surface.

Photovoltaic assemblies incorporating an optical element having internal inclusions configured for maximum conversion efficiency

A moisture vapor permeable metalized composite sheet is formed by coating a moisture vapor permeable sheet with at least one metal layer and at least one outer organic coating layer. The moisture vapor permeability of the composite sheet is at least about 80% of the moisture vapor permeability of the starting sheet. The composite sheet provides a barrier to air and liquid water infiltration while having high moisture vapor permeability and good thermal barrier properties. The composite sheet material is suitable for use as a building construction wrap such as roof lining and house wrap.

Breathable low-emissivity metalized sheets

The present invention discloses a multi-layer fluoropolymeric film that is useful as a light capture front sheet in solar modules, and more broadly as an antireflection layer. The present invention further discloses a glass shaped article having a multi-layer fluoropolymeric film disposed upon the surface thereof. The shaped article is useful in applications where it is desirable to reduce reflection of incident light.

Multi-layer fluoropolymeric film and articles incorporating such films

An optical element comprises a body having opposed planar major surfaces with a plurality of open-mouthed inclusions (grooves) formed on its light output surface. Each groove has a closed apex with an included apex angle. The body is formed from a material having an index of refraction of at least 1.3 and an induced absorbance rate &#x394;Abs/Dose less than or equal to about 0.4. The apex angle is selected such that light incident upon the body is conveyed the light output surface by the mechanism of total internal reflection from the boundary walls of the grooves and/or without retro-reflection toward the incident surface.

Optical element having internal inclusions configured for maximum conversion efficiency

The present invention discloses photovoltaic modules with a multi-layer fluoropolymeric film wherein the reflectance spectrum of the multi-layer fluoropolymeric film exhibits at least one minimum in the wavelength between 400 and 1100 nm. The film is useful as a light capture front sheet in solar modules, and more broadly as an antireflection layer. The invention further discloses photovoltaic arrays formed from such modules.

Photovoltaic module with multi-layer fluoropolymeric film

The invention relates to compounds of Formula (I): The invention further relates to liquid crystal compositions comprising compounds of Formula (I); compositions further comprising one or more chiral compounds; and polymer networks derived from the polymerization of the liquid crystal compositions. Another embodiment relates to processes for providing compounds of Formula (I).

Liquid crystal compositions, polymer networks derived therefrom and process for making the same

The invention relates to compounds of formula (I): wherein Rand Rare each independently selected from the group: H, F, Cl and CH; n1 and n2 are each independently integers 3 to 20; q and r are each independently integers 0, 1 or 2, with the proviso that q+r is &#x2267;1; D is a divalent chiral radical selected from the group: wherein Ris a C1 to C6 straight or branched chain alkyl group; and each Band Bis a divalent radical independently selected from the group: R-substituted-1,4-phenyl, wherein Ris H, &#x2014;CHor &#x2014;OCH; 2,6-naphthyl; and 4,4'-biphenyl; with the provisos that when q+r=3, at least one of Band Bis R-substituted-1,4-phenyl; and when q+r=4, at least two of Band Bare R-substituted-1,4-phenyl. The invention further relates to liquid crystal compositions comprising compounds of formula (I) and polymer networks derived from the polymerization of the liquid crystal compositions.

Chiral compounds and liquid crystal compositions and polymer networks derived therefrom

Liquid crystal compositions and polymer networks derived therefrom

The present invention is concerned with flash-spinning a surface-modified structure such as a plexifilimentary yarn or a microcellular foam.

Growing community of inventors

Hockessin, DE, United States of America

Jose Manuel Rodriguez-Parada