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.

A invenção atual é dirigida a um copolymer capaz de dar forma água e a um agente impermeável a óleo que permita o emperramento a textiles e a outros materiais sem a produção do formaldehyde. O copolymer de acordo com a invenção atual compreende a) um agente radical-contendo fluoroaliphatic, (b) stearyl (meth)acrylate; (c) um composto chlorine-containing; e (d) um monomer selecionado daqueles que contêm um grupo funcional do anhydride ou são capazes de dar forma a um grupo funcional do anhydride. A invenção atual mais adicional fornece uma composição repellency-dando da água e do óleo para carcaças fibrous e outras, a composição que compreende o copolymer acima junto com um catalizador, tal como o hypophosphite do sodium, para dar forma a anhydrides dos monomers acid-containing no copolymer. A composição pode promover compreende opcionalmente outros aditivos como, por exemplo, ácido poly(acrylic); um extender; um softener; um antioxidant; um surfactant; e/ou um plasticizer.

 
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