To obtain a coating agent composition that has a water solubility and adhesion and serves as a primer or modifier for improving many properties including mechanical strength, water and boiling water resistance and weatherability, to provide a method for producing the same and to obtain an article coated or surface-treated with the composition.
The coating agent composition comprises a silicon-containing water-soluble polymer compound having a repeating unit represented by the formula (1) (10m260; 1n100; R1 is a hydrogen atom, an alkyl group or an acetyl group; a and b are each 1-3; X is an alkylene chain which may contain a substituent group; the substituent group is an alkyl group; Y is a direct bond, an oxygen atom or a CHR5 group; R2-R5 are each a hydrogen atom or an alkyl group and R3 or R4 and R5 may be bonded to form a saturated carbon ring) and a plurality of primary amino groups, hydrolyzable silyl groups and/or silanol groups and an organic solvent and/or water.
YAMATANI MASAAKI
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Saori Shigematsu
Katsunari Kobayashi
Takeshi Ishikawa
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