Liquid crystal polymer
AssigneeUeno Fine Chemicals Industry, Ltd.
InventorsShinobu Ishizu, Hisanari Fujiwara, Akihito Ota
Life of this patent
Estimating the term…
Abstract
A resin does not need to incorporate a fluorescent substance and exhibits fluorescence itself. Also, a liquid crystal polymer is provided which does not contain a bleeding out substance such as hydrophobic silica and barium sulfate and which has an effect of suppressing fibrillation in the resin itself. A liquid crystal polymer includes a copolymer of a polymerizable monomer (A) selected from the group consisting of pyromellitic acid or anhydride thereof and a reactive derivative thereof and a polymerizable monomer (B).
Claims19
A liquid crystal polymer characterized in that the polymer is obtained by copolymerizing a polymerizable monomer (A) selected from the group consisting of pyromellitic acid or an anhydride thereof and a reactive derivative thereof and a polymerizable monomer (B),
- wherein the polymerizable monomer (B) consists of 4-hydroxybenzoic acid and 2-hydroxy-6-naphthoic acid, and
- wherein the liquid crystal polymer exhibits a fluorescence peak having a peak top in a wavelength range of 470 to 600 nm when the liquid crystal polymer is excited with light having a wavelength of 250 to 450 nm.
A liquid crystal polymer characterized in that the polymer is obtained by copolymerizing a polymerizable monomer (A) selected from the group consisting of pyromellitic acid or an anhydride thereof and a reactive derivative thereof and a polymerizable monomer (B),
- wherein the polymerizable monomer (B) consists of 4-hydroxybenzoic acid, 2-hydroxy-6-naphthoic acid, an aromatic dicarboxylic acid and hydroquinone, and
- wherein the liquid crystal polymer exhibits a fluorescence peak having a peak top in a wavelength range of 470 to 600 nm when the liquid crystal polymer is excited with light having a wavelength of 250 to 450 nm.
Dependencies are inferred from the claim text.