The Dow Chemical Company

Dow Global Technolgoies LLC

Eovations, LLC

Andrew T Graham

James Keenihan

Robert J Cleereman

Mark Alan Barger

Joseph A Langmaid

Herbert A Gartner

Kevin Louis Nichols

Brett M Birchmeier

Hoang T Pham

Gerald K Eurich

Joe A Langmaid

Christopher John Tucker

John Klier

Thomas H Kalantar

Steven W Mork

Fredric L Buchholz

Stephen B Christensen

Thomas C Johnson

Don L Stevens

Erin D O'Driscoll

Josef H Burgert

Steven M Mork

James R Keenihan

The present invention is premised upon a connector device and method that can more easily electrically connect a plurality of PV arrays and/or locate these arrays upon a building or structure. It also can optionally provide some additional components (e.g. a bypass diode and/or an indicator means) and can enhance the serviceability of the array.

Photovoltaic device assembly and method

Solid state draw a laminated polymer billet containing two or more polymer compositions laminated to one another to prepare an oriented polymer composition.

Solid state drawing laminated polymer billets

The present invention is premised upon a multi-layer laminate structure and method of manufacture, more particularly to a method of constructing the multi-layer laminate structure utilizing a laminate frame and at least one energy activated flowable polymer.

Multi-layer laminate structure and manufacturing method

A durable, conformable, absorbent, hydrophilic, polymeric latex foam composition having a free absorbent capacity of at least 5 grams of a 0.9 weight percent aqueous saline solution per gram of foam and capable of vertically wicking said aqueous saline solution to a height of greater than about 5 cm. In a preferred embodiment, after compression, the latex foam composition remains thin until wet, whereupon it expands and exhibits a high free absorbent capacity and high vertical wicking height.

Durable, absorbent latex foam composition having high vertical wicking

A water-soluble polymer having a low polydispersity index and controlled molecular weight can be prepared by oxidative degradation and shearing of a water-swellable crosslinked polymer or by hydrolysis of the crosslinked polymer to a high molecular weight soluble polymer, followed by oxidative degradation of the high molecular weight polymer.

Preparation of a low polydisperse water-soluble polymeric composition

The subject invention pertains to a process for preparing a fluid absorbent polymer wherein an ethylenically unsaturated monomer mixture is dispersed as droplets in an inert organic phase containing a hydrophobic suspending agent, such droplets being polymerized to form polymer particles having a hydrophobic surface, the improvement comprising blending the polymer particles with a hydrophilic material in the absence of an organic solvent, such as to render the hydrophobic surface hydrophilic.

Direct application of surface treatment to absorbent polymers

Water absorbent resin particles of crosslinked carboxyl containing

The subject invention provides a surface-crosslinked water-absorbent polymer having improved properties. The subject invention further pertains to a process for preparing such a polymer. Through the use of a preferred primary crosslinking agent coupled with surface crosslinking, desirable absorptive properties are achieved. Suitable primary crosslinking agents include methylenebisacrylamide, bis(acrylamido)acetic acid and its salts, allyl acrylate, allyl methacrylate and esters or amides having both a vinyl and an allyl functionality.

Water-absorbent polymer having improved properties

The subject invention provides a process for preparing a water-absorbent polymer by the addition of a surface crosslinking agent to a hydrogel. In particular, the subject invention provides a process for preparing a water-absorbent polymer by the addition of a surface crosslinking agent to a hydrogel in the absence of a surfactant.

Process for preparing a water-absorbent polymer

A process is described for recycling dry aqueous fluid absorbent polymer fines into a process that includes a polymerization step for making the aqueous fluid absorbent polymer. The process requires recovering the dry polymer fines, mixing the fines with a polymerizable monomer solution for making the aqueous fluid absorbent polymer and polymerizing the mixture of fines and monomer to form the aqueous fluid absorbent polymer. In the process the fines are incorporated into the new polymer gel and becomes indistinguishable therefrom. The gel may then comminuted into a particulate dried and then separated into a portion having a desired minimum particle size in a fines portion having less than the desired size. The fines portion is then recycled up to about 30 percent by weight based on gel solids may be recycled for the preferred polyacrylate based aqueous fluid absorbent polymer.

Process for recycling aqueous fluid absorbents fines to a polymerizer

Growing community of inventors

Midland, MI, United States of America

Andrew T Graham