Method of imparting water repellency with non-fluorinated laundry treatment compositions

A method of imparting water repellency and optionally stain release to fibrous substrates comprising contacting a fibrous substrate with a laundry treatment composition inside a laundry machine,

• wherein the laundry treatment composition comprises a hydrophobic compound having at least one linkage of Formula I:
• —NHC(O)—X— (I)
• wherein
• X is selected from Formulas (IIa) or (IIb):
• wherein each R is independently a direct bond to NHC(O) of Formula I;
• —H;
• —R1;
• —C(O)R1;
• —(CH2CH2O)n(CH(CH3)CH2O)mR2;
• or —(CH2CH2O)n(CH(CH3)CH2O)mC(O)R1;
• each n is independently 0 to 20;
• each m is independently 0 to 20;
• m+n is greater than 0;
• r is 1 to 3;
• a is 0 or 1;
• p is independently 0 to 2;
• provided that a is 0 when r is 3;
• each R1 is independently a linear or branched alkyl group having 5 to 29 carbons optionally comprising at least 1 unsaturated bond;
• each R2 is independently —H, a linear or branched alkyl group having 6 to 30 carbons optionally comprising at least 1 unsaturated bond;
• or mixtures thereof,
• provided when X is Formula (IIa), then at least one R is a direct bond to NHC(O) of Formula 1;
• and at least two R groups are a —R1;
• —C(O)R1;
• —(CH2CH2O)n(CH(CH3)mR2;
• or —(CH2CH2O)n(CH(CH3 )CH2O)mC(O)R1;
• each R4 is independently a direct bond to NHC(O) of Formula I;
• —H, a linear or branched alkyl group having 6 to 30 carbons optionally comprising at least 1 unsaturated bond, or combinations thereof;
• —(CH2CH2O)n(CH(CH3)CH2O)mR2;
• or
• —(CH2CH2O)n(CH(CH3)CH2O)mC(O)R1;
• and
• provided when X is Formula (IIb), then at least one R or R4 is a direct bond to NHC(O) of Formula 1;
• and at least two of R or R4 are a linear or branched alkyl group optionally comprising at least 1 unsaturated bond, or combinations thereof;
• —(CH2CH2O)n(CH(CH3)CH2O)mR2;
• or —(CH2CH2O)n(CH(CH3)CH2O)mC(O)R1.