E.i. Dupont De Nemours and Company

The Chemours Company Fc, LLC

Carl Andrew Menning

Joachim C Ritter

Sourav Kumar Sengupta

Wathudura Indika Namal De Silva

Alan Martin Allgeier

Ekaterini Korovessi

David Richard Corbin

Christina S Stauffer

Torren Ryan Carlson

Joseph E Murphy

H David Rosenfeld

Brad Matthew Rosen

Hau-Nan Lee

Andrew Jay Duncan

Jelena Lasio

This invention provides methods and technology related to increased hiding power of a coating through mediating the interaction of the pigment with other system components including but not limited to other pigment particles, latex paint particles, latex binding particles, and organic or inorganic hollow particles. Organization and spacing are tailored via pH sensitive functionalities hosted on ligands or polymeric spacers that are located at/within the surface of one of the components.

Tailored dispersion and formation of integrated particle systems via pH responsive groups

Disclosed herein are processes for preparing an &#x3b1;,&#x3c9;-C-diol, wherein n is 5 or greater, from a feedstock comprising a Coxygenate. In one embodiment, the process comprises contacting the feedstock with hydrogen gas in the presence of a catalyst comprising Pt, Cu, Ni, Pd, Pt, Rh, Ir, Ru, or Fe on a WOor WOsupport. In one embodiment, the process comprises contacting the feedstock with hydrogen in the presence of a catalyst comprising a metal M1 and a metal M2 or an oxide of M2, and optionally a support. In one embodiment, M1 is Pd, Pt, or Ir; and M2 is Mo, W, V, Mn, Re, Zr, Ni, Cu, Zn, Cr, Ge, Sn, Ti, Au, or Co. The Coxygenate may be obtained from a biorenewable resource.

Production of alpha, omega-diols

Disclosed are processes for preparing 1,2-cyclohexanediol, and mixtures of 1,2-cyclohexanediol and 1,6-hexanediol, by hydrogenating 1,2,6-hexanetriol.

Process for the production of hexanediols

Disclosed are processes for preparing 1,6-hexanediol and synthetic intermediates useful in the production of 1,6-hexanediol from renewable biosources. In one embodiment, a process comprises contacting levoglucosenone with hydrogen in the presence of a first hydrogenation catalyst at a first temperature to form product mixture (I); and heating product mixture (I) in the presence of hydrogen and a second hydrogenation catalyst at a second temperature to form product mixture (II) which comprises 1,6-hexanediol.

Process for preparing 1, 6-hexanediol

Disclosed are processes for preparing 1,6-hexanediol from levoglucosenone. In one embodiment, the process comprises contacting levoglucosenone with hydrogen in the presence of a hydrogenation catalyst comprising palladium, platinum/tungsten, nickel/tungsten, rhodium/rhenium, or mixtures thereof at a first temperature between about 50&#xb0; C. and 100&#xb0; C. and at a first reaction pressure between about 50 psi and 2000 psi for a first reaction period, and at a second temperature between about 120&#xb0; C. and 250&#xb0; C. and at a second pressure between about 500 psi and 2000 psi for a second reaction period to form a product mixture comprising 1,6-hexanediol, wherein the first reaction period is the amount of time in which the levoglucosenone has a conversion of at least about 95%.

Disclosed are processes for preparing 1,6-hexanediol from levoglucosenone. In one embodiment, the process comprises contacting levoglucosenone with hydrogen in the presence of a hydrogenation catalyst comprising palladium, platinum/tungsten, nickel/tungsten, rhodium/rhenium, or mixtures thereof at a first temperature between about 50&#xb0; C. and 100&#xb0; C. and at a first reaction pressure between about 50 psi and 2000 psi for a first reaction period, and at a second temperature between about 120&#xb0; C. and 250&#xb0; C. and at a second pressure between about 500 psi and 2000 psi for a second reaction period to form a product mixture comprising 1,6-hexanediol, wherein the first reaction period is the amount of time in which the levoglucosenone has a conversion of at least about 95%. In one embodiment, the 1,6-hexanediol is converted to 1,6-diaminohexane.

Process for preparing 1,6-hexanediol

Disclosed herein are processes comprising contacting isosorbide with hydrogen in the presence of a first hydrogenation catalyst to form a first product mixture comprising tetrahydrofuran-2,5-dimethanol. The processes can further comprise heating the first product mixture in the presence of hydrogen and a second hydrogenation catalyst to form a second product mixture comprising 1,6-hexanediol. The first and second hydrogenation catalysts can be the same or different.

Production of tetrahydrofuran-2, 5-dimethanol from isosorbide

Disclosed are processes for preparing 1,6-hexanediol and synthetic intermediates useful in the production of 1,6-hexanediol from renewable biosources. In one embodiment, a process comprises contacting levoglucosenone with hydrogen in the presence of a first hydrogenation catalyst at a first temperature to form product mixture (I); and heating product mixture (I) in the presence of hydrogen and a second hydrogenation catalyst at a second temperature to form product mixture (II) which comprises 1,6-hexanediol. In one embodiment, the 1,6-hexanediol is converted to 1,6-diaminohexane.

Disclosed herein are processes for preparing an &#x3b1;,&#x3c9;-C-diol, wherein n is 5 or greater, from a feedstock comprising a Coxygenate. In some embodiments, the process comprises contacting the feedstock with hydrogen gas in the presence of a catalyst comprising metals M1, M2, and M3 and optionally a support, wherein: M1 is Mn, Cr, V, or Ti; M2 is Ni, Co, or Fe; and M3 is Cu, Ag, Pt, Pd or Au; or M1 is Pt or Rh; M2 is Cu, Ni or Pd; and M3 is Mo, Re or W. The Coxygenate may be obtained from a biorenewable resource.

Disclosed herein are processes for preparing an &#x3b1;,&#x3c9;-C-diol, wherein n is 5 or greater, from a feedstock comprising a Coxygenate. In one embodiment, the process comprises contacting the feedstock with hydrogen gas in the presence of a catalyst comprising Cu, a Cu oxide, or mixtures thereof; a heteropoly acid component comprising H[P(WO)], H[Si(WO)], H[P(MoO)], H[Si(MoO)], CsH[P(WO)], CsH[Si(WO)], or mixtures thereof; optionally a second metal component comprising Cr, a Cr oxide, Ni, a Ni oxide, Mn, a Mn oxide, Fe, an Fe oxide, Co, a Co oxide, Mo, a Mo oxide, W, a W oxide, Re, a Re oxide, Zn, or a Zn oxide, Ag, a Ag oxide, SiO, or AlO; optionally at least one promoter comprising Na, K, Mg, Rb, Cs, Ca, Sr, Ba, Ce, or mixtures thereof; and optionally a support.

Production of &#x3b1;,&#x3c9;-diols

Disclosed herein are processes for preparing an &#x3b1;,&#x3c9;-C-diol, wherein n is 5 or greater, from a feedstock comprising a Coxygenate. In one embodiment, the process comprises contacting the feedstock with hydrogen gas in the presence of a catalyst comprising a first metal component comprising Ni, Ir, Pt, Rh, Ru, Pd, Fe, Ag, or Au; a heteropoly acid component comprising H[P(WO)], H[Si(WO)], H[P(MoO)], H[Si(MoO)], CsH[P(WO)]CsH[Si(WO)], or mixtures thereof; optionally a second metal component comprising Cr, a Cr oxide, Ni, a Ni oxide, Fe, a Fe oxide, Co, a Co oxide, Mn, a Mn oxide, Mo, a Mo oxide, W, a W oxide, Re, a Re oxide, Zn, a Zn oxide, SiO, or AlO; optionally at least one promoter comprising Na, K, Mg, Rb, Cs, Ca, Sr, Ba, Ce, or mixtures thereof; and optionally a support. In one embodiment, the optional support is present in the catalyst and comprises WO, SiO, AlO, carbon, TiO, ZrO, SiO&#x2014;AlO, montmorillonite, SiO&#x2014;TiO, tungstated ZrO, zeolites, VO, MoO, or mixtures thereof. The Coxygenate may be obtained from a biorenewable resource.

Growing community of inventors

Newark, DE, United States of America

Carl Andrew Menning