摘要:
The invention relates to a radically polymerizable sulfur-containing compound having a group represented by formula (1) and at least one selected from among groups represented by formulae (2) to (4), a radically polymerizable sulfur-containing polymer obtained by subjecting the compound to cationic ring-opening (co)polymerization, production process thereof, a composition containing the sulfur-containing compound and/or the sulfur-containing polymer, and a cured product obtained from the composition . . . (1)(2)(3)(4) . . . (R1 to R6 each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.) The cured product obtained from the radically polymerizable sulfur-containing compound and the radically polymerizable sulfur-containing polymer having a high refractive index is useful as an optical material, especially for lens material.
摘要:
The invention relates to a radically polymerizable sulfur-containing compound having a group represented by formula (1) and at least one selected from among groups represented by formulae (2) to (4), a radically polymerizable sulfur-containing polymer obtained by subjecting the compound to cationic ring-opening (co)polymerization, production process thereof, a composition containing the sulfur-containing compound and/or the sulfur-containing polymer, and a cured product obtained from the composition . . . (1)(2)(3)(4) . . . (R1 to R6 each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.) The cured product obtained from the radically polymerizable sulfur-containing compound and the radically polymerizable sulfur-containing polymer having a high refractive index is useful as an optical material, especially for lens material.
摘要:
A radically polymerizable compound having a group represented by formula (1) (In the formula, R1 to R3 each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, X represents an alkylene group having 1 to 4 carbon atoms.) and a radically polymerizable double bond and a composition for an optical material comprising the same have a high refractive index and excellent transparency and are hard to be oxidized in thermal curing and useful as an optical material with little tinting.
摘要:
A radically polymerizable compound having a group represented by formula (1) (In the formula, R1 to R3 each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, X represents an alkylene group having 1 to 4 carbon atoms.) and a radically polymerizable double bond and a composition for an optical material comprising the same have a high refractive index and excellent transparency and are hard to be oxidized in thermal curing and useful as an optical material with little tinting.
摘要:
A plastic lens composition having a low viscosity, a plastic lens by curing the composition, and a method for producing the plastic lens are disclosed. The plastic lens composition contains a bromine-containing (meth)allyl ester-based compound and exhibits low viscosity and the cured composition has a high refractive index of 1.58 or more and a low specific gravity of 1.40 or less.
摘要:
A compound favored with low viscosity, capable of providing a cured product having high refractive index, and suitable for application to optical materials, including plastic lens material, radical polymerizable flame retardant and the like, as well as a process for producing the compound, a plastic lens composition using the compound, a plastic lens obtained by curing the composition and a process for producing the plastic lens. A novel aromatic ring-containing polyvalent (meth)allyl ester derived from a polyvalent carboxylic acid of trivalent or greater valent is employed.
摘要:
This invention is to provide a polymerizable composition having excellent curability and surface hardness, and a cured product thereof. A novel fumarate derivative having two or more fumarate groups within one molecule and ensuring copolymerizability with the terminal alkenyloxy group, a method for producing the derivative, a polymerizable composition containing the derivative, and a cured product thereof are provided.
摘要:
This invention relates to a novel polymer compound, and a process for preparing the same and a radical polymerizable, curable composition using the same. The polymer of the invention has in the side chain thereof a structure represented by the formula (1): wherein R1 each independently represents at least one or more organic residue selected from the group consisting of an alkylene group, a branched alkylene group, a cycloalkylene group, an aralkylene group and an arylene group, R2 each independently represents at least one or more organic residue selected from the group consisting of an alkylene group, a branched alkylene group, an alkenylene group, a branched alkenylene group, a cycloalkylene group, a cycloalkenylene group and an arylene group, and n represents an integer of 0 to 20.
摘要:
This invention relates to a novel polymer compound, and a process for preparing the same and a radical polymerizable, curable composition using the same. The polymer of the invention has in the side chain thereof a structure represented by the formula (1): wherein R1 each independently represents at least one or more organic residue selected from the group consisting of an alkylene group, a branched alkylene group, a cycloalkylene group, an aralkylene group and an arylene group, R2 each independently represents at least one or more organic residue selected from the group consisting of an alkylene group, a branched alkylene group, an alkenylene group, a branched alkenylene group, a cycloalkylene group, a cycloalkenylene group and an arylene group, and n represents an integer of 0 to 20.
摘要:
Disclosed herein is a novel 1-alkenyl ether compound which can be cured by radical polymerization. The invention provides a 1-alkenyl ether compound represented by the formula: R1—CH═CH—(OR2)n—OCO—X—COO—(R2O)n—CH═CH—R1 (1) wherein X represents —CH═CH— or —CH2—C(═CH2)—, each of R1 independently represents hydrogen or an alkyl group having 1 to 3 carbon atoms, each of R2 independently represents an alkylene group having 2 to 4 carbon atoms or a cycloalkylene group having 5 to 12 carbon atoms, and n is an integer of 1 to 10, and a 2-alkenyl ether compound represented by the formula: R5—CH═CH—CH2—(OR2)n—OCO—X—COO—(R2O)n—CH2—CH═CH—R5 (2) wherein X represents —CH═CH— or —CH2—C(═CH2)—, each of R5 independently represents hydrogen or an alkyl group having 1 to 2 carbon atoms, each of R2 independently represents an alkylene group having 2 to 4 carbon atoms or a cycloalkylene group having 5 to 12 carbon atoms, and n is an integer of 1 to 5, provided that, when n=1, each of R2 represents an alkylene group having 3 or 4 carbon atoms or a cycloalkylene group having 5 to 12 carbon atoms. The above compounds can be obtained by the reaction between fumaric acid, maleic acid, itaconic acid, a derivative thereof or the like and a polyalkylene glycol monopropenyl ether, a polyalkylene glycol monoallyl ether or the like. Further, the compound of the formula (1) (provided that R1 is not hydrogen) can be obtained by isomerizing the 2-alkenyl ether compound.