Water/oil repellent agent and water/oil repellent composition
AssigneeAsahi Glass Company, Limited
InventorTaiki Hoshino
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Abstract
To provide a water/oil repellent agent and a water/oil repellent composition which are capable of imparting sufficient water/oil repellency to the surface of an article and which have low environmental impact. One comprising a reaction product obtained by reacting a fluorinated alcohol or amine having a polyfluoroalkyl moiety having at most 6 carbon atoms with a polyisocyanate compound, which is, when applied to an article, capable of imparting sufficient water/oil repellency, while presenting little environmental impact. When applied to an article, the water/oil repellent composition of the present invention is capable of imparting a high quality water/oil repellency to the article.
Claims8
A water/oil repellent agent which comprises a reaction product of the following fluorinated compound (a) with a polyisocyanate compound (b):
- Fluorinated compound (a):
- Rf-X-Ph-Y—Z
- wherein Rf is a C1-6 polyfluoroalkyl group, X is a single bond, a C1-4 alkylene group, (CH2)mO(CH2)n (each of m and n which are independent of each other, is an integer of from 0 to 4) or (CH2)pOCO (p is an integer of from 1 to 4), Ph is a phenylene group, Y is a single bond, a C1-4 alkylene group or (CH2)qO(CH2)r (q is an integer of from 0 to 4, and r is an integer of from 1 to 4), and Z is OH or NHR (R is a hydrogen atom or a C1-6 alkyl group).
Dependencies are inferred from the claim text.