E.i. Dupont De Nemours and Company

Other

Conoco Inc.

Commonwealth Scientific and Industrial Research Organisation

Dupont Electronics, Inc.

Charles T Berge

Ezio Rizzardo

Graeme Moad

San Hoa Thang

Xiaoqing Li

Christopher Scopazzi

Michael Fryd

Mark P Mack

Jeffrey W Johnson

Joseph A Antonelli

Michael J Darmon

Robert John Barsotti

Josef Huybrechts

Kenneth S Kirshenbaum

Catherine Louise Moad

Christian Jackson

Charles M Starks

Michael Stephen Wolfe

Waifong Liew Anton

Richard Douglas Bauer

Jeffery W Johnson

Karyn B Visscher

C Chad Roberts

Vincent Desobry

Thomas Robert Darling

John Chiefari

Paul P Bruylants

Albert Mau

Tristan Williams

Cullen Kirkpatrick

Anthony W Kluth

Loretta L Tam

Julia Krstina

Christopher E Murphy

Roshan Mayadunne

Gerry Swiegers

Gerry Wilson

This invention pertains to self-dispersing pigment dispersions. The self-dispersing pigments are modified with a multivalent cation and an anionic polymer.

Cationic modified self-dispersing pigment dispersions

The present disclosure provides novel aqueous ink-jet inks containing an aqueous vehicle, a pigment and a random polyurethane copolymer as a binder. The random polyurethane copolymer contains short hard segments without any ionic group. Also disclosed is the use of these dispersions in an ink-jet ink.

Aqueous ink-jet inks containing random polyurethanes as binders

The present disclosure provides novel aqueous ink-jet inks containing an aqueous vehicle, a pigment and a branched polyurethane as a binder.

Aqueous ink-jet inks containing branched polyurethanes as binders

The present disclosure provides novel aqueous ink-jet inks containing an aqueous vehicle, a pigment and an alternating polyurethane as a binder.

Aqueous ink-jet inks containing alternating polyurethanes as binders

Inkjet inks are described that have, as a principal component, a crosslinked polyurethane dispersoid binder additive. These inks can be used for printing on different media, and are particularly suitable for printing on textiles.

Inkjet inks containing crosslinked polyurethanes

Inkjet inks are described that have, as a principal component, a crosslinked polyurethane dispersoid binder additive. These inks can be used for printing on different media, and are particularly suitable for printing on paper.

The present disclosure provides an ink-jet ink comprising an aqueous ink vehicle and an aqueous dispersion, the aqueous dispersion comprises a colorant and a polyurethane dispersant, wherein said polyurethane dispersant is comprised of a polymer having a cross-linkable moiety, wherein the cross-linkable moiety is cross-linked with a cross-linking agent.

Ink-jet ink comprising cross-linked pigment dispersion based on polyurethane dispersants

The present disclosure provides an aqueous dispersion containing a colorant and a polyurethane dispersant, wherein the polyurethane dispersant is a polymer having a cross-linkable moiety, wherein the cross-linkable moiety is cross-linked, with a cross-linking agent.

Cross-linked pigment dispersion based on polyurethane dispersants

The present disclosure provides an ink-jet ink containing an aqueous ink vehicle, an aqueous dispersion and a polymeric binder. The aqueous dispersion contains a colorant and a polyurethane dispersant, wherein the polyurethane dispersant is made with a polymer having cross-linkable moieties that are cross-linked with a cross-linking agent.

Ink-jet ink comprising cross-linked pigment dispersion and a polymeric binder

Inkjet inks that have, as a principal component, a crosslinked polyurethane dispersoid binder additive with selected diols used to prepare the polyurethane. The diols include a polyether diol, an ionic diol and polycarbonate, polyamide and/or poly(meth)acrylate diols. These inks can be used for printing on different media, and are particularly suitable for printing on textiles. The printed textiles are particularly durable to wash fastness and crock.

The invention provides in one aspect a process for preparing a microgel by RAFT polymerizing in the presence of a RAFT chain transfer agent, one or more solvophobic monomers and one or more solvophilic monomers to form one or more block copolymers comprising one or more solvophobic blocks and one or more solvophilic blocks wherein the solvophobic block is insoluble in a dispersing medium and the solvophilic block is soluble in the dispersing medium. The block copolymer is dispersed in the dispersing medium to form micelles, which is then stabilized to form the microgel. The dispersing medium can be aqueous or lipophilic. The method of the present invention also permits one to encapsulate a wide variety of materials, such as pigments, dye molecules, and aluminum flakes used in metallized paints.

Process of microgel synthesis and products produced therefrom

Microgels and process for their preparation

The present invention is directed to a process for forming star shaped microgels which include a core of crosslinked polymer and multiplicity of substantially linear polymeric arms of macromonomers attached to the core. The process includes polymerizing monoethylenically unsaturated monomers in the presence of a chain transfer agent to form macromonomers each having a terminal polymerizable ethylenically unsaturated group and then polymerizing, in presence of the macromonomers, the monoethylenically unsaturated monomers and multi-olefinic crosslinking monomers. The microgels of the present invention can be used as rheology control agents in waterborne and solvent-borne coatings and in adhesives and cosmetics.

Process for preparing star shaped microgels from macromonomers with terminal ethylenic unsaturation

This invention provides for an aqueous metallic flake containing coating composition having improved glamour. The coating composition includes a neutralized phosphated segmented copolymer dispersed in an aqueous carrier. The phosphorous moiety in the segmented copolymer passivates the metallic flakes, such as aluminum flakes, used to produce the glamour. As a result, generation of hydrogen gas is substantially reduced. The segmented copolymer is provided with hydrophobic and nonionic hydrophilic segments. Applicants have discovered that by including a nonionic hydrophilic segment in the segmented copolymer, glamour of the resultant coating composition can be improved. Furthermore, by controlling the molar ratio of the hydrophobic segment to the hydrophilic segment in the segmented copolymer and the solubility parameter of the hydrophobic segment, applicants have discovered that it is possible to use either a non-passivated aluminum flake or pre-passivated aluminum flake in the coating composition while improving glamour over conventional metallic paints and still maintaining the dispersion stability of the composition. As a result, formulator has substantial leeway in selecting from a wide array of environmentally acceptable solvents, film forming binders and components, which are typically added to a coating composition for improving the coating properties. The composition is most suited for use in automotive OEM and refinish metallic paints.

Metallic flake containing coating compositions having improved glamour

Growing community of inventors

Earleville, MD, United States of America

Charles T Berge