Liquid laundry detergent compositions with modified polyethyleneimine polymers and lipase enzyme

A liquid laundry detergent composition comprising:

• (a) from about 5 to about 20000 LU/g of a first wash lipase wherein said first wash lipase is a polypeptide having
• i) an amino acid sequence which has at least 90% identity with the wild-type lipase derived from Humicola lanuginosa strain DSM 4109;
• ii) a substitution of an electrically neutral or negatively charged amino acid within 15A of E1 or Q249 with a positively charged amino acid;
• and
• ii) optionally comprise one or more of the chemical substitutions or characteristics selected from the group consisting of:
• (I) a peptide addition at the C-terminal;
• (II) a peptide addition at the N-terminal;
• (III) a negatively charged amino acid in position E210 of said wild-type lipase;
• (IV) a negatively charged amino acid in the region corresponding to positions 90-101 of said wild-type lipase;
• (V) a neutral or negatively charged amino acid at a position corresponding to N94 of said wild-type lipase;
• (VI) a negative charge or neutral charge in the region corresponding to positions 90-101 of said wild-type lipase;
• and
• (VII) mixture thereof;
• (b) from about 0.01 wt % to about 10 wt % by weight of the composition of a modified polyethyleneimine polymer wherein the modified polyethyleneimine polymer comprises:
• i) a polyethyleneimine backbone of about 300 to about 10000 weight average molecular weight;
• and
• ii) the modification of the polyethyleneimine backbone is selected from the group consisting of:
• (1) one or two alkoxylation modifications per nitrogen atom in the polyethyleneimine backbone, the alkoxylation modification comprising the replacement of a hydrogen atom by a polyalkoxylene chain having an average of about 1 to about 40 alkoxy moieties per modification, wherein the terminal alkoxy moiety of the alkoxylation modification is capped with hydrogen, a C1-C4 alkyl or mixtures thereof;
• (2) a substitution of one C1-C4 alkyl moiety and one or two alkoxylation modifications per nitrogen atom in the polyethyleneimine backbone, the alkoxylation modification comprising the replacement of a hydrogen atom by a polyalkoxylene chain having an average of about 1 to about 40 alkoxy moieties per modification wherein the terminal alkoxy moiety is capped with hydrogen, a C1-C4 alkyl or mixtures thereof;
• and
• (3) a combination thereof;
• and
• (c) the balance of the composition comprising a liquid carrier.