Photocurable resin composition for sealing material and method of sealing
AssigneeMitsui Chemicals, Inc.
InventorsYasushi Takamatsu, Kei Nagata, Masahiro Ota, Yasushi Mizuta, Yoshio Kikuta
Life of this patent
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Abstract
A photo-curable resin composition for sealing material, which is superior in the photo-curing performance and in the prompt curing property and is better in the adhesive property, in the resistance to moisture permeation and in the heat resistance, the photo-curable resin composition comprising (A) a compound having oxetane ring, (B) a photoinitiator for cationic polymerization and (C) a silane coupling agent, wherein the composition has a viscosity in the range from 0.01 to 300 Pa.s at 25° C.
Claims19
A photo-curable resin composition for sealing material comprising:
- (A) a compound having at least one oxetane ring, in a proportion of 3 to 86% by weight,
- (B) a photoinitiator for cationic polymerization, in a proportion of 0.1-10% by weight,
- (C) a silane coupling agent, in a proportion of 0.1-30% by weight,
- (D) a microparticulate inorganic filler, in a proportion of 0-70% by weight and
- (E) a compound having epoxy group, in a proportion of 0-99.7% by weight
- wherein the composition has a viscosity in the range from 0.01 to 300 Pa.s at 25° C.
A method for sealing a display cell of liquid crystal display or electroluminescence display, comprising applying a sealing material to the cell and subjecting the material to curing, wherein said sealing material comprises
- (A) a compound having at least one oxetane ring, in a proportion of 3-86% by weight,
- (B) a photoinitiator for cationic polymerization, in a proportion of 0.1-10% by weight,
- (C) a silane coupling agent, in a proportion of 0.1-30% by weight,
- (D) a microparticulate inorganic filler, in a proportion of 0-70% by weight, and
- (E) a compound having epoxy group, in a proportion of 0-99.7% by weight,
- wherein the composition has a viscosity in the range from 0.01 to 300 Pa.s at 25° C.
A display based on liquid crystal or electroluminescence, comprising a display cell sealed by a sealing material, wherein said sealing material comprises
- (A) a compound having at least one oxetane ring, in a proportion of 3-86% by weight,
- (B) a photoinitiator for cationic polymerization, in a proportion of 0.1-10% by weight,
- (C) a silane coupling agent, in a proportion of 0.1-30% by weight,
- (D) a microparticulate inorganic filler, in a proportion of 0-70% by weight, and
- (E) a compound having epoxy group, in a proportion of 0-99.7% by weight,
- wherein the composition has a viscosity in the range from 0.01 to 300 Pa.s at 25° C.
A method for sealing a display cell of liquid crystal display or electroluminescence display, comprising applying a sealing material to the cell and subjecting the material to curing, wherein said sealing material comprises
- (A) a compound having at least one oxetane ring, in a proportion of 3-86% by weight,
- (B) a photoinitiator for cationic polymerization, and
- (C) a silane coupling agent,
- wherein the composition has a viscosity in the range from 0.01 to 300 Pa.s at 25° C.
A display based on liquid crystal or electroluminescence, comprising a display cell sealed by a sealing material, wherein said sealing material comprises
- (A) a compound having at least one oxetane ring, in a proportion of 3-86% by weight,
- (B) a photoinitiator for cationic polymerization, and
- (C) a silane coupling agent,
- wherein the composition has a viscosity in the range from 0.01 to 300 Pa.s at 25° c.
Dependencies are inferred from the claim text.