摘要:
A curable composition containing an inorganic compound A having sulfur atom and/or selenium atom, a compound B represented by the following formula 1: wherein m is an integer from 0 to 4, and n is an integer from 0 to 2, and a compound C selected from the group consisting of disulfide compounds which are other than the compound B and have one or more disulfide linkages Inorganic compound A is contained in an amount from 1 to 50 parts by weight and compound B is contained in an amount from 50 to 99 parts by weight when a total of inorganic compound A and compound B is taken as 100 parts by weight. Compound C is contained in an amount from 1 to 20 parts by weight based on 100 parts by weight in total of inorganic compound A and compound B.
摘要:
There are provided a photocurable composition capable of being readily cured by irradiation of ultraviolet rays and a cured product of the photocurable composition, as well as a coating composition and a coating film obtained from the coating composition. The cured product exhibits a high refractive index, a less discoloration and an excellent transparency. The present invention relates to a photocurable composition comprising (A) an episulfide compound containing a thiirane ring; and (B) a photo-base generator represented by the general formula (1): wherein Ar is phenyl, etc.; R is an alkyl group, etc.; —A+ is an ammonium ion; and X− is a borate anion, etc., and a coating composition comprising the photocurable composition and (C) a modified silicone oil, as well as a cured product and a coating film obtained from these compositions.
摘要翻译:提供了能够通过照射紫外线而容易地固化的光固化性组合物和光固化性组合物的固化物,以及由涂料组合物得到的涂料组合物和涂膜。 固化产物具有高的折射率,较少的变色和优异的透明度。 本发明涉及一种光固化组合物,其包含(A)含有硫杂环戊烯环的环硫化合物; 和(B)由通式(1)表示的光碱发生剂:其中Ar是苯基等; R是烷基等; -A +是铵离子; 和X-是硼酸根阴离子等,以及包含该可光固化组合物和(C)改性硅油的涂料组合物,以及由这些组合物获得的固化产物和涂膜。
摘要:
A process for producing a resin used for preparing an optical material. The process comprises curing a composition comprising an ultraviolet light absorbent and an epithio compound by polymerization in the presence of a catalyst, wherein the ultraviolet light absorbent and the catalyst are in amounts, each expressed as parts by weight per 100 parts by weight of the total amount of the epithio compound, which satisfy both of the following relationships (a) and (b): (a) 0.001≦ultraviolet light absorbent≦1,000, and (b) 0.001≦catalyst≦5,000. The process prevents coloration and clouding of optical material for a lens obtained by polymerization of an epithio compound caused by addition of an ultraviolet light absorbent.
摘要:
A composition for use in an optical material is disclosed which is capable of providing an optical material satisfying a high refractive index (ne is 1.73 or more), a high strength (an elongation is 10% or more in a three-point bending test and drilling resistance is good), and a high thermostability (a softening point measured by TMA is 70° C. or higher). The optical material such as a lens for two-point frame spectacles is formed by polymerizing and curing a composition for use in an optical resin material containing (a) an inorganic compound having a sulfur atom and/or a selenium atom, (b) an episulfide compound, and (c) a xylylenedithiol compound.
摘要:
A light control plastic lens, a sheet-like light control element, and a production method for light control plastic lenses are provided. More specifically, a light control plastic lens, such as a high index polarizing property and/or a photochromic plastic lens that is made by cast polymerization is provided. Also provided is a sheet-like light control element for use in the production of the lenses, as well as a production method of such light control plastic lenses. The light control plastic lens has a sheet-like light control element including at least a light control sheet. In particular, the light control plastic lens has a sheet-like light control element, a curable resin layer laminated on at least one surface of the sheet-like light control element, and a polymerizable lens resin layer laminated at least on the curable resin layer.
摘要:
A vicinal dithiol is produced by the reaction of an episulfide compound having at least one thiirane ring in its molecule and a thiocarboxylic S-acid.
摘要:
A composition containing 3,3′-thiobis(propane-1,2-dithiol) and one or more enic compounds which composition is photocurable and can give a cured product having a high refractive index and adequate hardness.
摘要:
A composition for use in an optical material is disclosed which is capable of providing an optical material satisfying a high refractive index (ne is 1.73 or more), a high strength (an elongation is 10% or more in a three-point bending test and drilling resistance is good), and a high thermostability (a softening point measured by TMA is 70° C. or higher). The optical material such as a lens for two-point frame spectacles is formed by polymerizing and curing a composition for use in an optical resin material containing (a) an inorganic compound having a sulfur atom and/or a selenium atom, (b) an episulfide compound, and (c) a xylylenedithiol compound.
摘要:
The invention relates to a curable composition preferable as a raw material for optical materials such as adhesive agents for optical elements, coating agents for optical elements, resist materials, prisms, optical fibers, information recording substrates, filters and plastic lenses, and more specifically to a curable composition characterized by containing (A) an episulfide compound, and (B) a polymerization catalyst comprising a tetraalkylphosphonium dialkylphosphate represented by the following general formula (1): wherein R1 to R6 are the same or different, an alkyl group having 1 to 8 carbon atoms or an alkyl group having a hydroxyl group and 1 to 8 carbon atoms, and linear, branched or cycloaliphatic.
摘要:
According to a preferable embodiment of the present invention, a composition for a resin comprising an inorganic compound having a sulfur atom and/or a selenium atom, an episulfide compound, and a mercaptodisulfide compound can be provided. According to another preferable embodiment of the present invention, a composition for a resin having the viscosity thereof decreased to facilitate a cast polymerization operation and thus to improve the tonality of the obtained optical material can be provided. According to still another preferable embodiment of the present invention, an optical material obtained by curing the above-described composition for a resin and having a high refractive index can be provided.