Compositions and methods for imparting oil repellency and/or...

Details Compositions and methods for imparting oil repellency and/or... Compositions and methods for imparting oil repellency and/or...

2009-04-16

2010-10-26

Salvatore, Lynda (Department: 1786)

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Coated or impregnated woven, knit, or nonwoven fabric which...

Coating or impregnation specified as water repellent

C442S080000, C428S446000, C428S452000

Reexamination Certificate

active

07820563

ABSTRACT:
Compositions and methods for treating substrates, such as fibrous materials, are disclosed. Such compositions and methods can be used to impart or maintain a level of oil repellency and/or water repellency in fibrous substrates such as paper-based materials and/or textiles. In general, such compositions can utilize a copolymer having a plurality of polycationic segments, which can be joined by various other polymeric segments such as silicones and/or hydrophilic polymeric segments. The copolymer can be formulated as a highly-branched polymer, which can have substantivity to a fibrous material to impart oil repellency and/or water repellency. In several instances, the copolymer can be formulated to be fluorine-free. Various details of such copolymers are discussed, as well as methods of utilizing and making such copolymers.

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