Sealant for one-drop fill process
AssigneeAdeka Corporation
InventorsHirokatsu Shinano, Hiroya Fukunaga, Kazuyuki Itano
Life of this patent
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Abstract
A sealant for a one drop fill process is characterized by curing through two steps consisting of photocure using visible light from which 400 nm or shorter wavelengths are cut off and thermal cure and, when in contact with a liquid crystal composition, is less contaminating to the liquid crystal composition with a photo radical initiator, and exhibits high adhesive strength to a substrate. The sealant contains (1) a titanocene photo radical initiator, (2) a photocuring resin, (3) a latent epoxy curing agent and, if necessary, (4) a monomer having at least two glycidyl ether groups per molecule as a thermosetting resin.
Claims17
A sealant for a one drop fill process comprising a titanocene photo radical initiator (1), a photocuring resin (2), and a latent epoxy curing agent (3),
- wherein the photocuring resin (2) is a monomer and/or an oligomer each having at least two (meth)acryl groups per molecule.
A photosensitive resin composition comprising a titanocene photo radical initiator that generates a radical on exposure to light having wavelengths longer than 400 nm (1′), a monomer and/or an oligomer each having at least two (meth)acryl groups per molecule (2′), a reaction product obtained by the reaction between a polyamine having at least one active hydrogen atom and at least two nitrogen atoms per molecule and an acidic compound (3′), and a monomer having at least two glycidyl ether groups per molecule (4′).
Dependencies are inferred from the claim text.