Aqueous liquid dispersion of water and oil repellent agent...

Details Aqueous liquid dispersion of water and oil repellent agent... Aqueous liquid dispersion of water and oil repellent agent...

2004-11-04

2010-06-01

Wu, David (Department: 1796)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S376000, C524S556000, C526S209000, C526S212000, C526S245000

Reexamination Certificate

active

07728064

ABSTRACT:
Disclosed is an aqueous liquid dispersion of water and oil repellent agent containing surfactants wherein there are contained (I) a homopolymer or copolymer of at least one polymerizable compound having a perfluoroalkyl or perfluoroalkenyl group and an acrylate, methacrylate or alpha-substituted acrylate group, or a copolymer of such a polymerizable compound with another copolymerizable compound which is copolymerizable with such a polymerizable compound, and (II) three nonionic surfactants, namely (a) a nonionic surfactant having an HLB of less than 12, (b) a nonionic surfactant having an HLB of not less than 12 and less than 17, and (c) a nonionic surfactant having an HLB of not less than 17. Such an aqueous liquid dispersion of a water and oil repellent agent containing surfactants is excellent in shelf life stability and dilution stability, and provides high water and oil repellency to an object.

REFERENCES:
patent: 2002/0173585 (2002-11-01), Funaki et al.
patent: 2003/0130457 (2003-07-01), Maekawa et al.
patent: 2004/0087695 (2004-05-01), Sugimoto et al.
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Machine Translation of JP 2001-107031 A.
English Translation of JP 2001-107031 A.

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