초록 ▼

Bleach boosters comprising zwitterionic imines and anionic imine polyions having a net negative charge are disclosed. The bleach boosters increase bleaching effectiveness in lower temperature solutions and demonstrate superior color safety profiles. The bleach boosters are ideally suited for inclusi

Bleach boosters comprising zwitterionic imines and anionic imine polyions having a net negative charge are disclosed. The bleach boosters increase bleaching effectiveness in lower temperature solutions and demonstrate superior color safety profiles. The bleach boosters are ideally suited for inclusion into bleaching compositions including those with detersive surfactants and enzymes. Also provided is a laundry additive product including zwitterionic imines and anionic imine polyions with a net negative charge as bleach boosters. A method for laundering a fabric employing the bleach boosters of the present invention is also disclosed.

대표청구항 ▼

A bleaching composition comprising: from about 0.01% to about 60% by weight of a peroxygen source and from about 0.01% to about 10% by weight of a bleach booster selected from the group consisting of zwitterionic imines, anionic imine polyions having a net negative charge of from about -1 to about -

A bleaching composition comprising: from about 0.01% to about 60% by weight of a peroxygen source and from about 0.01% to about 10% by weight of a bleach booster selected from the group consisting of zwitterionic imines, anionic imine polyions having a net negative charge of from about -1 to about -3, and mixtures thereof, said bleach booster has the formula: [Figure] wherein R1-R3 are moieties having a total charge of from about 0 to about -1; R1 and R2 form part of a common ring; T is selected from the group consisting of: －(CH2)b－wherein b is from about 1 to about 8, －(CH(R5))－wherein R5 is C1-C8 alkyl, －CH2(C6H4)－, [Figure] and －(CH2)d(E)(CH2)f－wherein d is from 2 to 8, f is from 1 to 3 and E is －C(O)O－, －C(O)NR6－or: [Figure] wherein R6 is H or C1-C4 alkyl; Z is covalently bonded to T; and Z is selected from the group consisting of －CO2-, －SO3-and －OSO3-; and a is either 1 or 2.