Ashland Licensing and Intellectual Property LLC

Ashland, Inc.

Sridevi Narayan-Sarathy

Michael L Gould

Laurence G Dammann

Lisa M Hahn

Robert Bernard Fechter

Matthew S Sheridan

Terry Emerson Hammond

Davor Zidovec

The liquid, uncrosslinked, UV-curable Michael addition resins and blends of the present invention exhibit performance properties that make them very effective coating materials and these properties can be modified greatly depending upon composition. Michael donors and acceptors can be constructed from Type I and/or Type II photoinitiators and can be included in the coating compositions disclosed to make UV-curable coatings with extraordinary photoreactivity and properties. Resins can be produced that show excellent adhesion to metals, plastics, wood, paper and glass. They exhibit wide ranges of hardness, toughness, flexibility, tensile strength, stain resistance, scratch resistance, impact resistance, solvent resistance, etc. Almost any desired coating performance parameter can be attained by proper selection of raw material building blocks.

Radiation curable Michael addition resins having built-in photoinitiators

The present invention relates to radiation-curable overprint varnishes for printed substrates based on multifunctional, uncrosslinked, liquid Michael addition resins. The compositions are UV-curable with little or no photoinitiator present.

Radiation-curable high gloss overprint varnish compositions

The invention detailed herein comprises a family of novel multifunctional acrylate ionomeric resins, which are water-dispersible, and have built-in photoinitiator. The inventive resins are made self-photoinitiating by their reaction with &#x3b2;-keto esters (e.g., acetoacetates), &#x3b2;-diketones (e.g., 2,4-pentanedione), &#x3b2;-keto amides (e.g., acetoacetanilide, acetoacetamide), and/or other &#x3b2;-dicarbonyl compounds that can participate in the Michael addition reaction as 'Michael donors.' These water-dispersible resins cure under standard ultraviolet (UV) cure conditions to give tack-free coatings without the addition of traditional photoinitiators. The present invention further relates to the use of these resins in coatings.

Self-photoinitiating water-dispersible acrylate ionomers and synthetic methods

The present invention relates generally to radiation-curable ink formulations, and particularly, but not by way of limitation, to a family of radiation-curable ink formulations specifically for flexographic and screen printing applications. The inventive ink formulations are based on multifunctional acrylate resins formed by the reaction of acrylate monomers and oligomers with &#x3b2;-keto esters (e.g., acetoacetates), &#x3b2;-diketones (e.g., 2,4-pentanedione), &#x3b2;-keto amides (e.g., acetoacetanilide, acetoacetamide), and/or other &#x3b2;-dicarbonyl compounds that can participate in Michael addition reactions.

Radiation-curable inks for flexographic and screen-printing applications from multifunctional acrylate oligomers

The invention detailed herein comprises a family of multifunctional acrylate oligomers which are useful as pigment grinding vehicles for use in radiation-curable coating formulations. The multifunctional acrylate resins are formed by the reaction of acrylate monomers and oligomers with &#x3b2;-keto esters (e.g., acetoacetates), &#x3b2;-diketones (e.g., 2,4-pentanedione), &#x3b2;-keto amides (e.g., acetoacetanilide, acetoacetamide), and/or other &#x3b2;-dicarbonyl compounds or Michael 'donors' that can participate in the Michael addition reaction. These resin vehicles have a built-in chromophore that enables ink formulations made from their dispersions to cure under standard UV-cure conditions with significantly less photoinitiator than commercial formulations. The resins also exhibit excellent pigment wetting characteristics and can be designed to function as a single dispersion vehicle for different pigments and different ink applications such as screen, flexographic, and lithographic printing.

Multifunctional acrylate oligomers as pigment grinding vehicles for radiation-curable ink applications

The present invention relates generally to radiation-curable ink formulations, and particularly, but not by way of limitation, to a family of radiation-curable ink formulations specifically for lithographic printing applications. The inventive ink formulations are based on multifunctional acrylate resins formed by the reaction of acrylate monomers and oligomers with &#x3b2;-keto esters (e.g., acetoacetates), &#x3b2;-diketones (e.g., 2,4-pentanedione), &#x3b2;-keto amides (e.g., acetoacetanilide, acetoacetamide), and/or other &#x3b2;-dicarbonyl compounds that can participate in Michael addition reactions.

Radiation-curable lithographic inks from multifunctional acrylate oligomers

Self-photoinitiating liquid oligomeric compositions are disclosed. The oligomeric compositions are formed from multifunctional mercaptans and Michael addition polyacrylate resins, synthesized from multifunctional acrylates and &#x3b2;-dicarbonyl Michael donors, specifically &#x3b2;-keto esters, &#x3b2;-diketones, &#x3b2;-ketoamides or &#x3b2;-ketoanilides or combinations thereof The oligomeric compositions are provided along with uses thereof and methods of fabricating.

Dual cure reaction products of self-photoinitiating multifunctional acrylates with thiols and synthetic methods

Photopolymerizable liquid oligomeric compositions are disclosed. The oligomeric compositions are formed from cycloaliphatic epoxides and Michael addition polyacrylate resins, synthesized from multifunctional acrylates and &#x3b2;-dicarbonyl Michael donors, specifically &#x3b2;-keto esters, &#x3b2;-diketones, &#x3b2;-ketoamides or &#x3b2;-ketoanilides or combinations thereof. The oligomeric compositions are provided along with uses thereof and methods of fabricating.

Dual cure reaction products of self-photoinitiating multifunction acrylates with cycloaliphatic epoxy compounds

Oligomers from multifunctional acrylates and organonitro compounds are provided. Films obtained from crosslinked oligomers of the present invention are useful as protective or decorative coatings as well as components in adhesives and composites.

Oligomers from multifunctional acrylates

This invention relates to a process for scale inhibition using random copolymers of acrylic acid and a monomer that is hydrophobic.

Growing community of inventors

Dublin, OH, United States of America

Sridevi Narayan-Sarathy