摘要:
A polymerizable composition for photochromic optical materials of the present invention includes a polymerizable monomer (A) having two or more ethylene-based unsaturated groups, an ethylene-based unsaturated polymerizable monomer (B) having one (meth) acrylic group and an aromatic ring, a polythiol (C) having three or more mercapto groups, and a photochromic compound (D), and the molar number of the mercapto groups included in the polythiol (C) is not more than 0.3 times with respect to the total molar number of the ethylene-based unsaturated groups included in the polymerizable monomer (A) and the polymerizable monomer (B).
摘要:
A polymerizable composition for photochromic optical materials of the present invention includes a polymerizable monomer (A) having two or more ethylene-based unsaturated groups, an ethylene-based unsaturated polymerizable monomer (B) having one (meth) acrylic group and an aromatic ring, a polythiol (C) having three or more mercapto groups, and a photochromic compound (D), and the molar number of the mercapto groups included in the polythiol (C) is not more than 0.3 times with respect to the total molar number of the ethylene-based unsaturated groups included in the polymerizable monomer (A) and the polymerizable monomer (B).
摘要:
Disclosed is a polymerizable composition for optical materials containing (a) an aromatic isocyanate, (b) a mercapto group-containing compound, and (c) a phosphorus-containing compound represented by the following general formula (1). O = P n - X 3 (wherein n represents an integer of 0 or 1. X represents a substituted or unsubstituted straight or branched alkyl group having 1 to 6 carbon atoms or the like. In the case where X is a substituted group, the substituted group represents a halogen atom or the like.)
摘要:
A composition for optical materials of the present invention includes a polyolefin (A) obtained by (co)polymerizing at least one kind of olefin selected from ±-olefins having 3 to 20 carbon atoms and a photochromic compound (B).
摘要:
A process in which a polyurethane/thiourethane resin can be produced from a polyisocyanate compound, a polyol compound, and a polythiol compound without causing abrupt heat generation or viscosity increase. At least one polyol compound having one or more ether bonds and two or more hydroxy groups per molecule is used as the polyol compound, whereby large heat generation and an abrupt viscosity increase are inhibited from occurring upon monomer mixing.
摘要:
A polymerizable composition containing a compound having at least one moiety represented by the formula (1): (1) wherein R1 represents a hydrocarbon group having 1 to 10 carbons, and each of R2, R3 and R4 represents a hydrocarbon group having 1 to 10 carbons or a hydrogen atom, characterized in that it contains a thioepoxy compound (A) having at least one moiety represented by the formula (2): (2) and at least one moiety represented by the formula (3): (3), and a thioepoxy compound (B) having at least one moiety represented by the formula (4): (4) and at least one moiety represented by the formula (3), in a sum of the amounts of both compounds of 4 mass % or less relative to the total amount of the polymerizable composition; and a method for producing the polymerizable composition. The use of the polymerizable composition allows the suppression of the reduction in yield due to variations or irregularities in refractive index, color, optical strain, or the like.