| 摘要 |
At least one monomolecule film is formed on a transparent substrate surface directly or via a protective film. The monomolecule film is formed with chemical coupling of chlorosilane surface active compound, for example, of the formula: <paragraph lvl="0"><in-line-formula>F(CF2)m(CH2)nSiRqX3-q</in-line-formula>where m is an integer of from 1 to 15, n is an integer of from 0 to 15 provided that the total of m and n is an integer of from 10 to 30 and R is an alkyl or an alkoxyl group, or <paragraph lvl="0"><in-line-formula>F(CF2)m'(CH2)n'A(CH2)pSiRqX3-q </in-line-formula>where m represents an integer ranging from 1 to 8, n' represents an integer ranging from 0 to 2, p represents an integer ranging from 5 to 25, q represents an integer ranging from 0 to 2, X represents a halogen atom or an alkoxyl group, R represents an alkyl or an alkoxyl group, and A represents -0-, a -COO- or -Si(CH3 )2 -. The transparent substrate such as glass is made hydrophobic and free of contamination.
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