Nippon Shokubai Co., Ltd.

Takafumi Kubo

Hiroshi Yamamoto

Takehiko Morita

Yoshiaki Hirano

Keiji Yurugi

Kenichi Takematsu

Yutaka Sugiyama

It is an object of the present invention to provide a basic crosslinked polymer having excellent ion exchange and catalyst properties with high resistance to thermal degradation which is, therefore, useful for a broad range of application, a method for producing said crosslinked polymer with great ease and high efficiency, and methods of using said crosslinked polymer. A crosslinked polymer having a tertiary amine and/or a quaternary ammonium salt structure, said crosslinked polymer has a tertiary amine structure at either end of at least one crosslink structure.

Crosslinked polymer, method for manufacturing it and use thereof

The invention provides a method of liquid-phase reaction using a soluble metallic catalyst in which the soluble metallic catalyst is caused to coexist with an anion-exchange resin during the reaction and the reaction is conducted under such conditions that 50% or more of the soluble metallic catalyst is adsorbed onto the anion-exchange resin. The anion-exchange resin having the soluble metallic catalyst adsorbed thereon is separated from the liquid reaction mixture to thereby recover the soluble metallic catalyst and reuse it in a liquid-phase reaction. The soluble metallic catalyst is efficiently used, recovered, and reused with great ease at low cost in various liquid-phase reactions using the soluble metallic catalyst.

Method of reaction with soluble metallic catalyst and anion-exchange resin, method of recovering the soluble metallic catalyst, and method of reuse

Crosslinked polymers excellent in ion exchange capacity and catalytic activity and in resistance to thermal decomposition and widely applicable in various fields of use; a crosslinking agent which is suited for use as a raw material in the production of crosslinked polymers; a method of producing crosslinked polymers; a method of producing a spherical particle which is suited for use in the production of crosslinked polymers; a method of producing a hydroxy alkyl (meth)acrylate; and a method of producing glycols using the crosslinked polymers are provided. The crosslinked polymer has at least one crosslink structure and a tertiary amine structure and/or a quaternary ammonium salt structure, wherein at least one crosslink structure is represented by the following general formula (1):

Crosslinked polymers containing tertiary amine and/or quaternary ammonium salt structures, processes for making and uses thereof

Process for producing &agr;, &bgr;-unsaturated carboxylic acid esters and catalyst for use in such process

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Suita, Japan

Takafumi Kubo