摘要:
The present invention provides an adhesive composition (a UV-curable resin composition) comprising a bisphenol type epoxy(meth)acrylate (A), a di(meth)acrylate compound (B) having a cyclic ether structure, and a photo-polymerization initiator (C), and a bonded optical disk which is adhered with a cured product of said adhesive composition. By adhering with said composition optical disk substrates having a translucent reflection film or a total reflection film comprising silver, a silver alloy, or the like, and obtaining a bonded optical disk, high durability equivalent to those of conventional bonded optical disks in which a translucent reflection film of gold is used, and high adhesion strength between a reflection film and an adhesive cured product, and a polycarbonate substrate and an adhesive cured product, can be obtained.
摘要:
Disclosed is an adhesive which enables to obtain a bonded optical disk, wherein optical disks having a total reflection film or a translucent reflection film made of silver or a silver alloy are bonded together, which exhibits high adhesion strength between the reflection film and a cured product of the adhesive as well as between a polycarbonate substrate and the cured product of the adhesive, while having high durability equivalent to those of the conventional optical disks using translucent reflective film made of gold. Specifically disclosed is an ultraviolet-curable adhesive resin composition containing a bisphenol-type epoxy (meth)acrylate (A), a di(meth)acrylate (B) and a photopolymerization initiator (C) which is characterized in that the di(meth)acrylate (B) is composed of one or more selected from a di(meth)acrylate (B-1) having an adipate structure, a di(meth)acrylate (B-2) having a caprolactone-modified structure, an alkylene oxide-modified neopentyl glycol di(meth)acrylate compound (B-3) and an alkylene oxide-modified 1,6-hexanediol di(meth)acrylate compound (B-4).
摘要:
The present invention enables to provide a highly durable protective coating film or adhesive layer for high-density optical disks with less warp, which is superior in transmission for blue lasers, transparency and low water-absorption, by using an ultraviolet-curing resin composition essentially comprising a compound (A) represented by the following general formula (I), [Chemical Formula 7], (wherein, R represents each independently a hydrogen atom or a C1-C3 alkyl group, and n and m each represents the number of repetition from 0 to 5) and a photopolymerization initiator.
摘要:
Hydrocarbon resins comprising about 95-35% by weight of units derived from 1,3-pentadiene, about 1-50% by weight of units derived from cyclododecatriene, and O-about 40% by weight of units derived from at least one monoolefin containing 5 carbon atoms, having a softening point of from about 100.degree. to about 160.degree. C., and being substantially gel-free. The hydrocarbon resins can be prepared by polymerizing a monomeric mixture comprising 1,3-pentadiene in the presence of a Friedel-Crafts type metal halide catalyst, said monomeric mixture comprising about 95-35% by weight of 1,3-pentadiene, about 1-50% by weight of cyclododecatriene, and 0-about 50% by weight of at least one monoolefin containing 5 carbon atoms.
摘要:
A process for dyeing a nitrogen-containing fiber, which comprises dyeing the fiber in a dye bath containing a halogenated hydrocarbon solvent, and a dye complex of an anionic dye with an amine of the formula: represents ##EQU1## wherein R.sub.1 represents a saturated or unsaturated hydrocarbon residue having 8 to 22 carbon atoms, R.sub.2 represents a saturated or unsaturated divalent hydrocarbon residue having 2 to 6 carbon atoms, said hydrocarbon residue for R.sub.1 and R.sub.2 may be of a straight or branched chain, n represents an integer of 1 to 4, each member of R.sub.2 may be the same or different when n is 2 or more, R.sub.3 and R.sub.4 each respresents a hydrogen atom, a lower alkyl or hydroxyalkyl group having 1 to 3 carbon atoms, and R.sub.3 and R.sub.4 may be the same or different.