Copolymers and oil-and water-repellent compositions containing them

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United States of America Patent

PATENT NO 6380336
SERIAL NO

09546199

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Abstract

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The present invention is directed to a copolymer capable of forming a water- and oil-repellent agent that enables binding to textiles and other materials without the production of formaldehyde. The copolymer according to the present invention comprises a) a fluoroaliphatic radical-containing agent, (b) stearyl (meth)acrylate; (c) a chlorine-containing compound; and (d) a monomer selected from those that contain an anhydride functional group or are capable of forming an anhydride functional group. The present invention further provides a water and oil repellency-imparting composition for fibrous and other substrates, the composition comprising the above copolymer together with a catalyst, such as sodium hypophosphite, for forming anhydrides from the acid-containing monomers in the copolymer. The composition can further optionally comprise other additives such as, e.g., poly(acrylic acid); an extender; a softener; an antioxidant; a surfactant; and/or a plasticizer.

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Patent Owner(s)

Patent OwnerAddress
NANOTEX LLC38500 WOODWARD AVENUE SUITE 201 BLOOMFIELD HILLS MI 48034

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Offord, David A Castro Valley, CA 24 784
Soane, David S Piedmont, CA 253 7662

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