Ashland Licensing and Intellectual Property LLC

Terry Emerson Hammond

Zhaohui Harry Sun

Xiaochuan Hu

John Hillerich Martin

David A Hutchings

Thomas M Moy

Sridevi Narayan-Sarathy

Michael L Gould

Timothy P Pepper

Michael J Sumner

Becky E Bushong

Yulia A Vasilieva

Danhy G Hartinger

John Martin

Daniel J Klein

Kevin R Lambrych

Thomas J Skelskey

The invention relates to a process for making e-Beam curable pressure sensitive adhesive compositions by derivatizing an acrylic polymer having one or more hydroxy groups or one or more acid groups with a derivatizing agent prepared from a hydroxy-functional acrylate monomer and a diisocyanate. The pressure sensitive adhesive can be effectively cured without a photoinitiator or reactive diluent. Also disclosed are e-Beam curable pressure sensitive adhesives made with the derivatizing agent and methods for adhering substrates with the pressure sensitive adhesive compositions.

Electron beam curable pressure sensitive adhesive comprising acrylic polymer with bound vinyl group

Pressure sensitive adhesive ('PSA') compositions comprising a polymer having at least one vinyl group and a Type I photoinitiator bound to the polymer. The polymer is derivatized with a derivatizing agent comprising a vinyl group. The PSA can be cured by exposure to ultraviolet radiation.

Ultraviolet cureable pressure sensitive adhesives comprising bound photoinitiator and vinyl groups

A process for making UV curable pressure sensitive adhesive compositions by derivatizing an acrylic polymer with a derivatizing agent prepared from a hydroxy-functional acrylate monomer and a diisocyanate. The derivatizing agent typically has a ratio of hydroxy-functional acrylate monomer to diisocyanate greater than about 1:1. Also disclosed are UV curable pressure sensitive adhesives made with the derivatizing agent and methods for adhering substrates with pressure sensitive adhesive compositions.

Ultraviolet radiation curable pressure sensitive acrylic adhesive

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

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Columbus, OH, United States of America

Terry Emerson Hammond