| 摘要 |
A gas permeable material having pores through it, in which the pore interiors ar e coated with the reaction product of a) an ester of a perfluoroalkyl alcohol and a poly-basic hydroxyl-carboxylic acid, and b) a melamine formsldehyde, urea-formaldehyde, or glycol modified formaldehyde. The material is oleophobic and is useful in fil tration applictions and in garments. |
