Stepan Company

Mingzhe Wang

Michael Edward O'Brien

Rick Tabor

Scott Yin

Michael Edward O'brien

Polyol acrylates are disclosed that are the reaction products of a modified polyol and a (meth)acrylic acid or derivative thereof. The modified polyols used in preparing the polyol acrylates are the reaction product of a natural oil or fatty carboxylic acid or derivative thereof with a polyol selected from the group consisting of polyester polyols, polyether polyols, polyester ether polyols and polyalcohols such that the natural oil or fatty carboxylic acid or derivative thereof is incorporated into the backbone of the polyol. The polyol acrylates are used to prepare pigment dispersions that are useful in formulating energy curable ink compositions.

Polyol acrylates for use in energy curable inks

Disclosed are radiation-curable compositions comprising at least one ortho-phthalate (meth)acrylate, and optionally a (meth)acrylate monomer, a stabilizing package, an adhesion promoter, and/or a photoinitiator. The compositions maintain physical integrity when cured and then aged for seven days under the conditions of 70% relative humidity, 77&#xb0; C. black panel temperature, 55&#xb0; C. chamber air temperature and a light intensity of 0.51 W/m/nm at 340 nanometer wavelength passed through a daylight filter. The preparation and use of these compositions are also disclosed.

Growing community of inventors

Vernon Hills, IL, United States of America

Mingzhe Wang