Water-repellent/oil-repellent composition

Details Water-repellent/oil-repellent composition Water-repellent/oil-repellent composition

2005-08-02

2010-10-26

Choi, Ling-Siu (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C528S397000

Reexamination Certificate

active

07820745

ABSTRACT:
Disclosed is an aqueous water-repellent/oil-repellent composition containing the following components (A), (B) and (C). Fluorine-containing copolymer (A): a copolymer containing a polymerizable monomer (a1) having a perfluoroalkyl group with 1-6 carbon atoms or a perfluoroalkenyl group wherein the amount of (a1) is not less than 20% by weight relative to the copolymer. Surfactant (B): a surfactant essentially containing a sorbitan ester or an alkylene oxide addition product thereof. Aqueous medium (C): a medium substantially containing water only or water and a water-soluble organic solvent.

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