摘要:
A radiation curable resin composition comprising (A) a first linear (meth)acryloyl and aromatic group-containing compound, (B) a second branched (meth)acryloyl group-containing compound, (C) a radiation polymerization initiator, and (D) silica particles having a secondary average particle diameter of 0.5 to 5 &mgr;m. The composition is suitable for use as a printable heat-resistant protective coat which is used for information recording media such as thermosensible recording cards and thermosensible photographic printing paper.
摘要:
A reversible thermosensitive recording medium is provided, comprising a supporting substrate, a reversible thermosensitive recording layer and an overcoat layer, formed in the order recited, in which the recording layer changes transparency or color tone reversibly with temperature. The overcoat layer is formed to have a peak temperature of at most 155° C. in a tan &dgr; vs. temperature curve, wherein tan &dgr; is defined by G′/G″, with dynamic modulus of elasticity represented by G′ and dynamic elastic loss represented by G″. This thermosensitive recording medium is capable of satisfactorily carrying out the formation and erasure of images with a heating device, such as a thermal printhead, and overcoming difficulties such as the occurrence of cracks and portions of the overcoat layer being removed therefrom and then sticking to heating elements of the thermal printhead, which are caused especially by the application of heating pulses for shorter periods of time and/or at increased pressures during repeated image formation and erasure processing.
摘要:
A novel photo-curable resin composition. The resin composition capable of providing a cured product having excellent mechanical strength, high dimensional accuracy, and excellent toughness. The resin composition is capable of providing a cured product which experiences little change in mechanical strength over time. The resin composition is capable of forming, by photo-fabricating, a three-dimensional object which can be used for a long period of time in a humid atmosphere. The composition comprises, (A) an epoxy compound having a cyclohexene oxide, (B) a cationic photo-initiator, (C) an ethylenically unsaturated monomer, (D) a radical photo-initiator, and (E) a polyol.
摘要:
A photocurable resin composition suitable for photo-fabrication. The resin composition capable of being promptly cured by photo-irradiation, thereby reducing fabricating time and providing cured products having excellent mechanical strength and minimized shrinkage during curing to ensure high dimensional accuracy. The composition includes (A) an oxetane compound, (B) an epoxy compound, and (C) a cationic photo-initiator.
摘要:
A photocurable resin composition suitable for photo-fabrication. The resin composition capable of being promptly cured by photo-irradiation, thereby reducing fabricating time and providing cured products having excellent mechanical strength and minimized shrinkage during curing to ensure high dimensional accuracy. The composition includes (A) an oxetane compound, (B) an epoxy compound, and (C) a cationic photo-initiator.
摘要:
A photocurable resin composition suitable for photo-fabrication. The resin composition capable of being promptly cured by photo-irradiation, thereby reducing fabricating time and providing cured products having excellent mechanical strength and minimized shrinkage during curing to ensure high dimensional accuracy. The composition includes (A) an oxetane compound, (B) an epoxy compound, and (C) a cationic photo-initiator.
摘要:
The present invention relates to a photocurable liquid resin composition comprising: (A) a cationically polymerizable organic compound; (B) a cationic photopolymerization initiator; (C) an ethylenically unsaturated monomer; (D) a radical photopolymerization initiator; (E) a polyether polyol compound having one or more hydroxyl groups in one molecule; and, optionally, includes elastomer particles having a specific particle diameter and/or an epoxy-branched alicyclic compound.
摘要:
A photocurable resin composition suitable for use in three-dimensional photofabrication comprising (A) a cationically polymerizable organic compound, (B) a cationic photoinitiator, and (C) a (co)polymer obtainable by (co)polymerization of monomers comprising at least one (meth)acrylate-group comprising monomer. A process for producing a three-dimensional object which comprises the use of a washing agent having a Hansen-solubility between 27-35 (Mpa)½.
摘要:
A radiation curable composition comprising,(A) at least one compound containing a (meth)acrylate group represented by the following formula (1), ##STR1## wherein R.sup.1 is a hydrogen atom or a methyl group, R.sup.2 is an alkylene group or a hydroxyalkylene group having 2 to 6 carbon atoms, R.sup.3 is a divalent organic group, n is a number of 1 to 10, m is an integer of 0 or 1, and Ar.sup.1 and Ar.sup.2 are independently a group comprising an aromatic ring(B) at least one compound derived from trishydroxyethyl isocyanurate, and containing at least one (meth)acrylate group, and(C) at least one radiation polymerization initiator.The radiation curable resin composition affords a high productivity, exhibits high transparency, and produces molded articles exhibiting minimal coloration upon exposure to light, superior dimensional precision, high heat resistance, only slight adhesion to substrates under high temperature conditions. The composition is very useful for manufacturing molding articles.
摘要:
A liquid curable resin composition containing:(A) a polyfunctional (meth)acrylic compound having at least three (meth)acryloyl groups in a molecule;(B) a reaction product obtained by the reacting (i) an alkoxysilane compound having a polymerizable unsaturated group, a urethane bonding group and an organic group represented by the formula (1), ##STR1## and (ii) silica particles; (C) a silicone polymer; and(D) an irradiation sensitive initiator.The composition when coated on surfaces of plastic molded articles and other materials provides for superior slip characteristics and resistance to abrasions, stains, weather, solvents and alkali environments. The composition of the instant invention is particularly suitable as a hard coat material for plastic optical components, touch panels, film-type liquid crystal elements, molded plastic articles or as a stain-proof or scratch-proof coating for wall and flooring materials which are used as architectural interior finishings.