US 6,380,336 B1 · Copolymers and oil-and water-repellent compositions containing them

Abstract

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.

Claims20

Dependent claims

A copolymer which comprises:

a) a fluoroaliphatic radical-containing agent;
(b) stearyl (meth)acrylate;
(c) a chlorine-containing compound, selected from the group consisting of vinylidene chloride, vinyl chloride, 2-chloroethylacrylate, 2-chloroethyl vinyl ether, and 2-chloroethyl vinyl ether;
and
(d) a monomer containing an anhydride functional group or capable of forming an anydride functional group.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

09/546,199Filed 10 Apr 2000 · continuation in part

Priority

24 Mar 1998

Granted

30 Apr 2002

Term ends

Not estimatedThe source records don’t support an estimate.

Classification34 codes

C08B 3/10
Of monobasic organic acids with three or more carbon atoms, e.g. propionate or butyrate: with five or more carbon-atoms, e.g. valerate
C08B 3/12
Preparation of cellulose esters of organic acids: of polybasic organic acids
C08B 3/14
Preparation of cellulose esters of organic acids: in which the organic acid residue contains substituents, e.g. NH2, Cl
C08B 15/00
Preparation of other cellulose derivatives or modified cellulose

Family

Application60/080,185Us provisional application · filed 24 Mar 1998

Application60/093,820Us provisional application · filed 23 Jul 1998

Application60/093,911Us provisional application · filed 23 Jul 1998

Application60/105,890Us provisional application · filed 27 Oct 1998

Application60/117,641Us provisional application · filed 28 Jan 1999

Application09/274,749Parent of this continuation-in-part · filed 23 Mar 1999

Application09/483,891Parent of this continuation-in-part · filed 18 Jan 2000

US 6,379,753 B1Related patent

US 6,380,336 B1This patent

From the US filing history. Foreign family members aren’t listed.

Copolymers and oil-and water-repellent compositions containing them

Life of this patent

Copolymers and oil-and water-repellent compositions containing them

Life of this patent

Abstract

Claims20