Fujifilm Wako Pure Chemical Corporation

Tokyo University of Science Foundation

Kosuke Yanaba

Nobuhiko Sakai

Shigeaki Imazeki

Koji Arimitsu

Tadashi Nakano

An object of the present invention is to provide a light- or heat-curing method by which a cured product (crosslinked product or resin) can be prepared in a simple method even in a case where filler is contained in a large amount; a curable resin composition which is used in the curing method; and the like. The present invention provides a light- or heat-curing method containing a step 1 of obtaining (E) a condensate having constitutional units of Si&#x2014;O&#x2014;Al and/or Si&#x2014;O&#x2014;Si, obtained from aluminum derived from an aluminum alkoxide and a silane derived from a silane coupling agent having a mercapto group, from (A) a compound that is formed of a salt of a carboxylic acid and an amine and has a carbonyl group generating a radical and a carboxylate group generating a base through decarboxylation by irradiation with light or heating, the (B) aluminum alkoxide, the (C) silane coupling agent having a mercapto group, and (D) water, and a step 2 of performing a reaction among the (E) condensate, (H) a compound having two or more polymerizable unsaturated groups, and (I) filler under the conditions of irradiation with light or heating in the presence of the (A) compound; a curable resin composition which is used in the curing method; and the like.

Light- or heat-curing method and curable resin composition

An object of the present invention is to provide a photocuring method, which makes it possible to rapidly and efficiently obtain a crosslinked product (resin), a compound used in the photocuring method, and a photocuring resin composition containing the compound. The present invention relates to a photocuring method, which comprises a step 1 and a step 2 performed after the step 1, a compound used in the photocuring method, and a photocuring resin composition containing the compound. Step 1: this is a step in which in the presence of (A) compound having a carbonyl group generating a radical by photoirradiation and a carboxyl group decarboxylated by photoirradiation, (B) silane coupling agent having a mercapto group or a (meth)acryl group is reacted with (C) water under acidic conditions to obtain (D) silane compound having a mercapto group or a (meth)acryl group and at least one silanol group. Step 2: this is a step in which in the presence of the compound (A) and (E) compound having a carbonyl group generating a radical by photoirradiation and a group generating a base by being decarboxylated by photoirradiation, the compound (A) and the compound (E) are irradiated with light to create alkaline conditions in a reaction system by decarboxylating the carboxyl group of the compound (A) and generating a base from the compound (E), and radicals are generated from the compound (A) and the compound (E) to generate a crosslinked product containing a constitutional unit derived from the silane compound (D) from the silane compound (D) and, if necessary, from (F) compound having two or more polymerizable unsaturated groups.

Photocuring method, compound and composition used therein

It is a subject of the present invention to provide an acid- and radical-generating agent which has high sensitivity to an active energy ray having a wavelength of around 300 to 450 nm, and can exert both high acid-generating performance and high radical-generating performance, and has heat resistance; and a method for generating an acid and a radical. The present invention relates to a compound represented by the general formula (A); an acid- and radical-generating agent comprising the compound; and a method for generating an acid and a radical: wherein n pieces of Reach independently represent an alkyl group, which may have a specific functional group in the chain, or in which a hydrogen atom may be substituted by a halogen atom; an alkoxy group, in which a hydrogen atom may be substituted by a halogen atom; an aryl group or an aryloxy group, in which a hydrogen atom may be substituted by a halogen atom, an alkyl group or a haloalkyl group; or an arylalkyl group or an arylalkyloxy group, in which a hydrogen atom may be substituted by a halogen atom, an alkyl group or a haloalkyl group; n pieces of Rand Reach independently represent a hydrogen atom, an alkyl group or an alkoxycarbonyl group; Rto Reach independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alkenyl group, an aryl group, an alkoxycarbonyl group, a dialkylamino group or a nitro group; Y represents an oxygen atom, a sulfur atom, or a carbonyl group; n pieces of Z each independently represent a sulfonyl group or an alkoxyphosphoryl group; n represents 1 or 2.

Acid- and radical-generating agent and method for generating acid and radical

The present invention relates to a compound represented by the general formula (A), a base- and/or radical-generating agent comprising the compound, and so on. In the formula, four pieces of Reach independently represents a hydrogen atom or a fluorine atom; four pieces of Reach independently represent a fluorine atom or a trifluoromethyl group; R, R, Rand Reach independently represent a hydrogen atom or an alkyl group having 1 to 12 carbon atoms; Rand Reach independently represent a hydrogen atom or an alkyl group having 1 to 12 carbon atoms, or Rand Rare bonded to each other to represent an alkylene group having 2 to 4 carbon atoms; and Rand Reach independently represent a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, or an aryl group having 6 to 14 carbon atoms and optionally having a substituent selected from the group consisting of an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an alkylthio group having 1 to 6 carbon atoms, a dialkylamino group having 2 to 12 carbon atoms, a halogen atom, and a nitro group, or Rand Rare bonded to each other to represent an alkylene group having 2 to 4 carbon atoms; provided that two or three of the eight groups Rto Rare each a hydrogen atom, and, in a case where two of the eight groups are each a hydrogen atom, then three to six of the remaining groups are each an alkyl group having 1 to 12 carbon atoms, and, in a case where three of the eight groups are each a hydrogen atom, then four or five of the remaining groups are each an alkyl group having 1 to 12 carbon atoms.

Acid-resistant base and/or radical generator, and curable resin composition containing said base and/or radical generator

The present invention relates to a compound represented by the general formula (A), a base generator comprising the compound, a base-reactive composition which comprises the base generator and a base-reactive compound, as well as a method for generating a base, etc. 

Base generator, base-reactive composition containing said base generator, and base generation method

A compound capable of providing a composition having high storage stability without reacting with a base-reactive compound, even when stored in a mixed state with the base-reactive compound, as well as capable of generating a strong base by irradiation of light (active energy rays) or heating. A base generator comprises the compound and a base-reactive composition comprises the base generator and the base-reactive compound. The compound is represented by the general formula (A).

Growing community of inventors

Kawagoe, Japan

Kosuke Yanaba