摘要:
Optically active &bgr;-type tris-(2,3-epoxypropyl)-isocyanurate is obtained by a method of reacting isocyanuric acid with an optically active epihalohydrin, or a method of optically resolving a racemic modification of tris-(2,3-epoxypropyl)-isocyanurate by using an amylose or cellulose derivative. It is a method for producing a high melting point type tris-(2,3-epoxypropyl)-isocyanurate obtained by mixing two enantiomers of optically active &bgr;-type tris-(2,3-epoxypropyl)-isocyanurate.
摘要:
[Problems] The present invention provides a photosensitive composition capable of permanently forming a hologram having a low light scattering loss and high diffraction efficiency, and a forming method of a pattern.[Means for solving problems] A photosensitive composition used for forming a pattern by a pattern exposure containing (a) a polymerizable compound, (b) a photopolymerization initiator, and (c) organic-zirconia composite fine particles having a zirconia volume concentration of 20% by volume to 80% by volume; and a forming method of a pattern using the composition.
摘要:
An optical resolver comprising an optically active substance made of tris-(2,3-epoxypropyl)isocyanurate, is presented. The optical resolver comprises an optically active tris-(epoxyalkyl)isocyanurate or its derivative, or an optically active derivative of a tris-(epoxyalkyl)isocyanurate. Particularly, the optical resolver comprises optically active tris-(2,3-epoxypropyl)isocyanurate or its derivative, or an optically active derivative of tris-(2,3-epoxypropyl)isocyanurate. Having supported on a carrier, an optically active tris-(2,3-epoxypropyl)isocyanurate or its derivative, or an optically active derivative of tris-(2,3-epoxypropyl)isocyanurate, can be made to be a packing for use in high-performance liquid chromatography, whereby efficient optical resolution can be carried out.
摘要:
It is an object of the present invention to provide a photosensitive composition capable of forming permanent holograms with low light scattering loss and high diffraction efficiency, and a method for forming a pattern. A photosensitive composition and a pattern formation method using the photosensitive composition are characterized in that the photosensitive composition used to form a pattern by pattern exposure includes: (a) a polymerizable compound, (b) a photopolymerization initiator, and (c) organic fine particles.
摘要:
An isocyanurate compound of the formula (1), wherein R is a hydrogen atom or a methyl group, a method for producing said iscyanurate compound, characterized by reacting carbon disulfide with a triglycidyl isocyanurate compound, and a trithiol isocyanurate compound and a method for producing the same.
摘要:
There is provided an underlayer coating that is used as an underlayer of photoresists in lithography process of the manufacture of semiconductor devices and that has a high dry etching rate in comparison to the photoresists, does not intermix with the photoresists, and is capable of flattening the surface of a semiconductor substrate having holes of a high aspect ratio; and an underlayer coating forming composition for forming the underlayer coating.The underlayer coating forming composition for forming by light irradiation an underlayer coating used as an underlayer of a photoresist in a lithography process of the manufacture of semiconductor devices, comprises a polymerizable substance and a photopolymerization initiator.
摘要:
There is provided an underlayer coating that is used as an underlayer of photoresists in lithography process of the manufacture of semiconductor devices and that has a high dry etching rate in comparison to the photoresists, does not intermix with the photoresists, and is capable of flattening the surface of a semiconductor substrate having holes of a high aspect ratio; and an underlayer coating forming composition for forming the underlayer coating.The underlayer coating forming composition for forming by light irradiation an underlayer coating used as an underlayer of a photoresist in a lithography process of the manufacture of semiconductor devices, comprises a polymerizable substance and a photopolymerization initiator.
摘要:
An epoxy/acid anhydride composition characterized by containing, as a curing accelerator, a substituted triazine of the formula [I] ##STR1## (wherein X is an amino group, C.sub.1-18 monoalkylamino group, di C.sub.1-18 alkylamino group, morpholino group, piperidino group, methyl group or phenyl group; R.sup.1 and R.sup.2 independently each represent C.sub.1-12 alkyl group, C.sub.1-12 hydroxyalkyl group, C.sub.4-8 cycloalkyl group, C.sub.5-9 cycloalkylmethyl group or C.sub.5-9 methylcycloalkyl group) in an epoxy/acid anhydride composition in which an epoxy compound and an acid anhydride-curing agent are contained, and an epoxy/acid anhydride resin composition prepared by thermosetting the epoxy/acid anhydride composition.