Use of grafted sma copolymers in liquid compositions

Abstract

The subject of the invention is the use of a grafted copolymer derived from the grafting: of an SMA copolymer (II) derived from the copolymerization of at least two monomers, (i) the first monomer being chosen from styrene and its derivatives and (ii) the second monomer including at least one anhydride function, with (iii) M-R-X molecules (I) including at least one pattern (M) chosen from patterns (1) to (4): formula (I), with A=oxygen, sulfur or NH; and including at least one chemical function (X) chosen from among halogen, a primary or secondary amine function, an alcohol function, a thiol function, a carboxylic acid function or a derivative of said function and an epoxy function, the pattern (M) and said function (X) being connected by a rigid or flexible chain (R); used as the majority composition or additive of liquid compositions intended to be applied in or on sheets of paper or cardboard, onto hard surfaces, on leather or on textiles.

1 - 17 . (canceled) 
     
     
         18 . A liquid composition for use in or on a substrate comprising a graft copolymer derived from the grafting:
 of a copolymer (II) derived from the copolymerization of at least two monomers, (i) the first monomer being chosen from styrene and derivatives thereof and (ii) the second monomer comprising at least one anhydride functional group of M-R-X molecules (I) comprising at least one unit (M) chosen from the units (1) to (4):   
       
         
           
           
               
               
           
         
       
       with A=oxygen, sulfur or NH; 
       and comprising at least one chemical functional group (X) chosen from a halogen, a primary or secondary amine functional group, an alcohol functional group, a thiol functional group, a carboxylic acid functional group or a derivative of this functional group and an epoxy functional group, the unit (M) and said functional group (X) being joined by a rigid or flexible chain (R); 
       wherein said substrate is selected from the group consisting of paper or cardboard, onto hard surfaces, onto leather or onto textiles. 
     
     
         19 . The liquid composition as claimed in  claim 18 , wherein the sheets of paper are sheets selected from the group consisting of printing/writing paper, wrapping paper, wrapping paper produced from deinked mechanical paper pulp, and wrapping paper produced from recycled paper pulp. 
     
     
         20 . The liquid composition as claimed in  claim 18 , wherein the hard surfaces are chosen from floors, walls and ceilings. 
     
     
         21 . The liquid composition as claimed in  claim 18 , wherein said liquid composition is an additive of aqueous liquid compositions of inks, of paints or of varnishes. 
     
     
         22 . The liquid composition as claimed in  claim 18 , wherein said graft copolymer is a surfactant or a co-surfactant. 
     
     
         23 . The liquid composition as claimed in  claim 18 , wherein said graft copolymer is a dispersant of mineral or organic pigments and/or of mineral fillers. 
     
     
         24 . The liquid composition as claimed in  claim 18 , wherein said graft copolymer is a mineral filler dispersant chosen from calcium carbonate, kaolin, titanium dioxide and cement. 
     
     
         25 . The liquid composition as claimed in  claim 23 , wherein said liquid composition comprises grouts, mortars, or concretes. 
     
     
         26 . The liquid composition as claimed in  claim 18 , wherein the copolymer (II) is derived from the copolymerization of a mixture of monomers comprising between 0.5 and 65% of monomers comprising an anhydride functional group (% by weight relative to the total mixture of monomers). 
     
     
         27 . The liquid composition as claimed in  claim 18 , wherein the number-average molecular weight (M n ) of the copolymer (II) varies between 500 and 500,000 daltons. 
     
     
         28 . The liquid composition as claimed in  claim 18 , wherein the monomer comprising an anhydride functional group is maleic anhydride. 
     
     
         29 . The liquid composition as claimed in  claim 18 , wherein the molecules (I) are derived from the reaction of urea with at least one compound chosen from alkyleneamines, amines, amino alcohols and amides. 
     
     
         30 . The liquid composition as claimed in  claim 18 , wherein the molecules (I) are derived from the reaction of urea with at least one compound containing at least one primary amine functional group (—NH 2 ) and at least one secondary amine functional group (—NH—), said functional groups being joined by a carbon-based chain comprising at least 2 carbon atoms. 
     
     
         31 . The liquid composition as claimed in  claim 18 , wherein the functional group (X) is a primary or secondary amine functional group. 
     
     
         32 . The liquid composition as claimed in  claim 18 , wherein the unit (M) of the molecule (I) is the unit (1) which is a heterocycle of imidazolidone type with A=oxygen. 
     
     
         33 . The liquid composition as claimed in  claim 18 , wherein the molecule (I) is 1-(2-aminoethyl)imidazolidin-2-one or UDETA: 
       
         
           
           
               
               
           
         
         1-(2-aminoethyl)imidazolidin-2-one 
       
     
     
         34 . The liquid composition as claimed in  claim 27  wherein the number-average molecular weight (M n ) of the copolymer (II) varies between 2,000 and 100,000 daltons.