Mitsui Chemicals, Inc.

Akihiro Okabe

Kazuo Kohmura

Yoshihiro Kubota

Masami Murakami

Nobuhiko Horiuchi

Takeshi Kubota

Satoshi Inagaki

Yoshito Kurano

Yoshiya Matsukawa

The method for manufacturing a modified aluminosilicate includes a first step of treating an aluminosilicate with an acid, a second step of primarily calcining the treated material obtained in the first step at 550&#xb0; C. to 850&#xb0; C., and a third step of contacting the calcined material obtained in the second step with a liquid containing one or more Group 4 elements and/or Group 5 elements, and then drying and secondarily calcining the resultant. The modified aluminosilicate includes one or more Group 4 elements and/or Group 5 elements, and exhibits an absorbance at 300 nm in an ultraviolet visible spectrum of 1.0 or higher. The method for manufacturing aromatic dihydroxy compounds includes reacting a phenol with hydrogen peroxide in the presence of a specific modified aluminosilicate.

Method for manufacturing modified aluminosilicate, modified aluminosilicate, and method for manufacturing aromatic dihydroxy compound using the same

Water-repellent porous silica having uniform pores, which comprises silica skeleton wherein fluorine atoms are fixed through covalent bonds and which has an alkali metal content of not more than 10 ppb, is synthesized. By the water-repellent porous silica, a water-repellent porous silica film having uniform pores, which is applicable to a light functional material or an electron functional material, a process for preparing the same and uses thereof can be provided.

Water-repellent porous silica, method for preparation thereof and use thereof

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Sodegaura, Japan

Akihiro Okabe