Mitsubishi Chemical Corporation

Soichiro Saita

Tomoyuki Mori

Hiroshi Kameo

Shinji Isogai

Harumi Asami

Ceco Dushkin

Yukio Yamaguchi

Shinya Maenosono

An optical memory device comprising a luminous material capable of increasing and/or memorizing a photoluminescence intensity (hereinafter referred to as a &ldquo;luminous intensity&rdquo;) as a function of irradiation energy of excitation light. And the luminous material comprises nanoparticles, diameters of which are smaller than Bohr radius of the luminous material so that excitons generated in the nanoparticles undergo quantum containment state in which the electrons and holes are individually contained as a result of irradiation with excitation light.

Optical memory device

A method for producing allyl alcohols, which comprises heat-treating diallyl ethers in the presence of a catalyst containing a palladium compound and a phosphorus compound to convert them to allyl alcohols, wherein the heat treatment is conducted under such conversion reaction conditions that the value of function F represented by the following formula is within a range of 0.ltoreq.F&lt;100, the concentration of allyl alcohols in the conversion reaction solution is not higher than 20 wt %, and the Pd concentration in the conversion reaction solution is within a range of from 0.005 to 1.0 wt %:

Method for producing allyl alcohols

A method for continuously producing alkadienols, which comprises subjecting a conjugated alkadiene and water to a hydration dimerization reaction in a continuous type reactor in the presence of carbon dioxide and a catalyst comprising a palladium compound and a phosphorus compound, wherein a hydrophobic phosphorus compound is used as the phosphorus compound, and the reaction is carried out in the presence of an amine while maintaining the concentration of the conjugated alkadiene in the reaction solution in the reactor within a range of from 0.5 to 4.5 wt %.

Method for continuously producing alkadienols

Growing community of inventors

Kurashiki, Japan

Soichiro Saita