The Chemours Company Fc, LLC

The Chemours Company Tt, LLC

E.i. Dupont De Nemours and Company

Dupont Air Products Nanomaterials, LLC

Peter Jernakoff

John D Bolt

Philipp Martin Niedenzu

Charles David Musick

Michael Patrick Milone

Cheryl Marie Stancik

Donald Edward Putzig

Junaid Ahmed Siddiqui

Narayanan Sankara Subramanian

Stephan Claude De La Veaux

Kevin J Leary

Stephen Claude De La Veaux

John Nicholas Birmingham

Yunghsing Samson Hsu

Kevin Joseph Leary

Philipp M Niedinzu

Narayanan S Subramanian

A process is provided for the preparation of lacing resistant, titanium dioxide particles for use in photodurable thin film production. Said process involves dewatering titanium dioxide particles that have been encapsulated with a layer of amorphous alumina in continuous fashion at temperatures in excess of 100&#xb0; C.

Preparation of lacing resistant, titanium dioxide particles for use in photodurable thin film production

Methods and apparatus for quantification of photoprotective performance of packaging concepts in an accelerated timeframe are disclosed. In certain embodiments, the apparatus includes a light source which provides a light beam that impinges upon a photoprotective material before being transmitted to a sample cell of a photosensitive entity, such as a photosensitive nutrient. In certain embodiments, the apparatus and methods can be used to generate models for the prediction of photoprotective performance values of untested materials based upon some other known qualitative or quantitative property.

Methods for producing new packaging designs based on photoprotective materials

This invention provides methods and apparatus for quantification of photoprotective performance of packaging concepts in an accelerated timeframe. In certain embodiments, the apparatus comprises a light source which provides a light beam that impinges upon a photoprotective material before being transmitted to a sample cell comprising a photosensitive entity, such as a photosensitive nutrient. In certain embodiments, the apparatus and methods can be used to generate models for the prediction of photoprotective performance values of untested materials based upon some other known qualitative or quantitative property.

Devices for determining photoprotective materials

The disclosure provides a paper slurry comprising a treated inorganic particle having reduced photoactivity and improved anti-microbial properties, wherein the treated inorganic pigment comprises: an inorganic core particle; a first treatment of a silicon compound, wherein the silicon compound is added in a single step; and a second treatment comprising a co-precipitated zinc oxide and alumina.

Treated inorganic pigments having reduced photoactivity and anti-microbial properties and their use in paper slurries

One aspect of the invention is to provide a composition comprising a titanium dioxide particle having on the surface of said particle a substantially encapsulating layer comprising a pyrogenically-deposited metal oxide; said substantially encapsulating layer having on its surface at least one organic surface treatment material selected from an organo-silane, an organo-siloxane, a fluoro-silane, an organo-phosphonate, an organo-acid phosphate, an organo-pyrophosphate, an organo-polyphosphate, an organo-metaphosphate, an organo-phosphinate, an organo-sulfonic compound, a hydrocarbon-based carboxylic acid, an associated ester of a hydrocarbon-based carboxylic acid, a derivative of a hydrocarbon-based carboxylic acid, a hydrocarbon-based amide, a low molecular weight hydrocarbon wax, a low molecular weight polyolefin, a co-polymer of a low molecular weight polyolefin, a hydrocarbon-based polyol, a derivative of a hydrocarbon-based polyol, an alkanolamine, a derivative of an alkanolamine, an organic dispersing agent, or a mixture thereof. Another aspect of the invention is to provide processes for producing said composition.

Preparation of organic additive-treated, pyrogenic silica-encapsulated titanium dioxide particles

A process is provided to prepare solid borozirconate and solid borotitanate cross-linkers, which comprises contacting zirconium or titanium complex with alkanolamine at particular mole ratios of boron, zirconium or titanium and alkanolamine. Use of the cross-linkers in compositions for oil field applications such as hydraulic fracturing and plugging of permeable zones are also disclosed.

Solid borozirconate and borotitanate cross-linkers

Gel-free colloidal abrasive polishing compositions and associated methods for polishing (e.g., chemical mechanical polishing) are described. These abrasive polishing compositions are comprised of a surface-modified colloidal abrasive that has been modified with a boron-containing compound(s), such as boron surface-modified colloidal ceria or silica. These compositions are useful in chemical mechanical planarization (CMP) applications as well as in substrate polishing applications. These abrasive compositions are most often negatively-charged colloids, which remain as stable negatively-charged colloids even in acidic media.

Gel-free colloidal abrasive polishing compositions and associated methods

Growing community of inventors

Wilmington, DE, United States of America

Peter Jernakoff