Dic Corporation

Iwate University

Dic Corporation (tokyo)

National University Corporation, Iwate University

Hajime Watanabe

Toshikazu Takata

Satoshi Ogawa

Takashi Furusawa

Shun Araki

Kazuo Arita

Koji Hayashi

Toshio Hinokimori

Takamitsu Nakamura

Yoshiaki Murata

The present invention relates to a method for manufacturing a polyarylene sulfide resin comprising: reacting a sulfoxide represented by the following formula (1) with a particular aromatic compound to obtain a poly(arylenesulfonium salt) having a particular constitutional unit; and dealkylating or dearylating the poly(arylenesulfonium salt) to obtain a polyarylene sulfide resin having a particular constitutional unit, 

Polyarylene sulfide resin and manufacturing method therefor, poly(arylene sulfonium salt) and manufacturing method therefor, and sulfoxide

Disclosed is a production method comprising a step of obtaining a poly(arylene sulfonium salt) comprising a terminal group including at least one functional group selected from the group consisting of a carboxy group, a hydroxy group and an amino group, and a step of dealkylating or dearylating the poly(arylene sulfonium salt) to obtain a polyarylene sulfide resin, and a polyarylene sulfide resin comprising a terminal group including a functional group obtainable by the production method.

Polyarylene sulfide resin, method for producing same, poly(arylene sulfonium salt), and method for producing poly(arylene sulfonium salt)

The present invention relates to a polyarylene sulfide resin, a method for producing the same, a poly(arylene sulfonium salt), and a method for producing the same. The production method comprises a step of obtaining a poly(arylene sulfonium salt) comprising a terminal group including at least one functional group selected from the group consisting of a carboxy group, a hydroxy group and an amino group, and a step of dealkylating or dearylating the poly(arylene sulfonium salt) to obtain a polyarylene sulfide resin, and a polyarylene sulfide resin comprising a terminal group including a functional group obtainable by the production method.

Polyarylene sulfide resin and manufacturing method therefor, poly(arylenesulfonium salt) and manufacturing method therefor, and sulfoxide

The present invention relates to a method for manufacturing a polyarylene sulfide resin comprising: a step of reacting a poly(arylenesulfonium salt) having a constitutional unit represented by the following formula (1) with an aliphatic amide compound to obtain a polyarylene sulfide resin having a constitutional unit represented by the following formula (2): wherein Rrepresents a direct bond, -Ar-, -Ar-S&#x2014; or -Ar-O&#x2014;; Arand Areach represent an arylene group optionally having a functional group as a substituent; Rrepresents an alkyl group having 1 to 10 carbon atoms or an aromatic group optionally having an alkyl group having 1 to 10 carbon atoms as a substituent; and Xrepresents an anion, wherein Rand Arare the same as described above.

Polyarylene sulfide resin, manufacturing method therefor, and molding

Provided are a modified epoxy resin and a modified epoxy resin whose cured products exhibit good heat resistance and dielectric properties, methods for producing these, a curable resin composition, a cured product of the curable resin composition, and a printed wiring substrate. A modified phenolic resin comprises a phenolic resin structure (A), wherein at least one aromatic nucleus (a) in the phenolic resin structure (A) has, as a substituent, a structural segment (1) represented by structural formula (1) below: In the formula, Ar each independently represent a phenyl group, a naphthyl group, or a structural segment having, on an aromatic nucleus of a phenyl or naphthyl group, at least one substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a halogen atom, a phenyl group, and an aralkyl group.

Modified phenolic resin, method for producing modified phenolic resin, modified epoxy resin, method for producing modified epoxy resin, curable resin composition, cured product of same, and printed wiring board

A problem is to provide a method for producing a polyarylene sulfide resin having excellent reactivity to other compounds and resins, such as an impact resistance improver such as an epoxysilane coupling agent, a functional group-containing thermoplastic elastomer, or the like, and also provide a polyarylene sulfide resin composition produced by the production method, not containing chlorine atoms, and having the excellent reactivity. A method for producing a polyarylene sulfide resin includes performing polymerization reaction of a mixture containing a diiodo aromatic compound, a sulfur compound, and a polymerization inhibitor having a specified functional group. The problem can be solved by using a polyarylene sulfide resin composition containing a polyarylene sulfide resin having a specified terminal functional group and iodine atoms within a range of 0.01 to 10,000 ppm relative to the polyarylene sulfide resin.

Method for producing polyarylene sulfide resin and polyarylene sulfide resin composition

The present invention relates to a method for manufacturing a polyarylene sulfide resin comprising: a step of reacting a poly(arylenesulfonium salt) having a constitutional unit represented by the following formula (1) with an aliphatic amide compound to obtain a polyarylene sulfide resin having a constitutional unit represented by the following formula (2): wherein Rrepresents a direct bond, &#x2014;Ar&#x2014;, &#x2014;Ar&#x2014;S&#x2014; or &#x2014;Ar&#x2014;O&#x2014;; Arand Areach represent an arylene group optionally having a functional group as a substituent; Rrepresents an alkyl group having 1 to 10 carbon atoms or an aromatic group optionally having an alkyl group having 1 to 10 carbon atoms as a substituent; and Xrepresents an anion, wherein Rand Arare the same as described above.

The present invention provides an epoxy resin having a low melting point, low melt viscosity, excellent solvent solubility, and excellent processability. Also, the present invention provides an epoxy resin composition and a cured product thereof having excellent fluidity, processability, flexibility, adhesion, and thermal conductivity. The epoxy resin is represented by general formula (I) below (Q: an alkylene chain having a C1-C9 linear part which may have a C1-C18 alkyl group in a side chain, or a linkage chain having an ether bond present between two continuous methylene groups in the alkylene chain; A: a phenylene unit in which 2 to 4 phenylene groups are bonded directly or through a linkage chain, or a naphthylene unit, n: 0 to 10). The epoxy resin composition contains the epoxy resin and a curing agent. The composition includes the epoxy resin.

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Ichihara, Japan

Hajime Watanabe