| abstract |
The present invention relates to a gel composition that can be a water-absorbing agent that gives excellent water-absorbing property to the surface of a porous material, a water-absorbing agent comprising the composition, and water-absorbing property by applying the water-absorbing agent to the surface of the porous material. And a porous material surface-treated with the water absorption inhibitor. (A) An organoalkoxysilane of the following formula and / or a partial hydrolysis condensate of the organoalkoxysilane, R1aSi (OR2) 4-a (R1, R2 are monovalent hydrocarbon groups, a is 1, 2 Or (3) (B) aluminum dicarboxylate of the following formula, (R3COO) 2Al (OH) (R3 is a monovalent hydrocarbon group) (C) fatty acid having 6 to 24 carbon atoms, (D) 6 to 30 carbon atoms A gel composition containing aluminum oligomers and / or aluminum alkoxides selected from (E) aluminum oxide organooxide and aluminum oxide acylate. [Selection figure] None |