Polymer particles
AssigneeRohm and Haas Company
InventorJiun-Chen Wu
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Abstract
Polymer particles made from copolymers of multifunctional (meth)acrylate monomer and multifunctional aromatic monomers are disclosed. Also disclosed are methods of improving the compression characteristics of (meth)acrylate polymer particles by copolymerizing with a multifunctional (meth)acrylate monomer a multifunctional aromatic monomer. The particles are of a size, uniformity, and contain physical characteristics that make them ideally suitable for use as spacers in liquid crystal display devices.
Claims8
A plurality of polymer particles comprising a copolymer of 1 to 30% wt of a multifunctional (meth)acrylate monomer and 70 to 99% wt of a multifunctional aromatic monomer, said particles each having a particle size of 1 to 15 microns with a standard deviation of less than 4% of the mean diameter;
- and a recovery factor greater than 35%, wherein the multifunctional (meth)acrylate monomer is a (C2-C18)alkanediol di(meth)acrylate.
Dependencies are inferred from the claim text.