Amino group-containing silicate composition and dehydrating agent containing it
AssigneesMitsubishi Kasei Corporation, Dow Mitsubishi Kasei Limited
InventorsTetsuya Tanaka, Hiroaki Katano, Masaaki Ohtani
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Abstract
The present invention relates to a reaction product of a tetraalkoxysilane or a silicate oligomer obtained by its partial hydrolysis-dehydration-polycondensation, with an amino alcohol having one or two hydroxyl groups, and a dehydrating agent comprising such a reaction product. The dehydrating agent of the present invention is suitable for dehydrating a moisture at a level of a few hundreds ppm. Further, since an amino alcohol is formed by the dehydration, it is particularly useful as a dehydrating agent for a raw material for the production of a urethane resin or an epoxy resin.
Claims16
An amino group-containing silicate composition obtained by reacting a silicate oligomer obtained by hydrolyzing, dehydrating and polycondensing a tetraalkoxysilane at a degree of hydrolysis within a range of from 0 to 65%, with an amino alcohol having one or two hydroxyl groups.
A dehydrating agent containing an amino groupcontaining silicate composition obtained by reacting a silicate oligomer obtained by hydrolyzing, dehydrating and polycondensing a tetraalkoxysilane at a degree of hydrolysis within a range of from 0 to 65%, with an amino alcohol having one or two hydroxyl groups.
A non-foamed urethane resin obtained by reacting an isocyanate and a polyol, said polyol or isocyanate, or both said polyol and said isocyanate having a dehydrating agent added thereto, said dehydrating agent being obtained by reacting a silicate oligomer with an amino alcohol having one or two hydroxyl groups, said silicate oligomer obtained by hydrolyzing, dehydrating and polycondensing a tetraalkoxysilane at a degree of hydrolysis within the range of from 0 to 65%.
A curing agent for an epoxy resin, which comprises an amino group-containing silicate composition obtained by reacting a silicate oligomer obtained by hydrolyzing, dehydrating and polycondensing a tetraalkoxysilane at a degree of hydrolysis within a range of from 0 to 65%, with an amino alcohol having one or two hydroxyl groups.
Dependencies are inferred from the claim text.