Hard surface cleaning composition
The present invention relates to a hard surface cleaning composition comprising a copolymer, wherein said copolymer comprises a zwitterionic unit A or a mixture thereof and another unit B or a mixture thereof, wherein said unit A comprises a betaine group or a mixture thereof and wherein said betaine group of said unit A is a sulphobetaine group or a mixture thereof, and wherein said unit B is derived from vinyl-pyrrolidone.
1. A hard surface cleaning composition comprising:
a copolymer, wherein said copolymer comprises:
a zwitterionic unit A or a mixture thereof and another unit B or a mixture thereof, wherein said unit A is selected from the group consisting of (SPE), (SPP), (SHPE), (SHPP), and mixtures thereof, and wherein said unit B is derived from vinyl-pyrrolidone, and wherein said copolymer is substantially devoid of cationic or potentially cationic C C units; and
a detergent surfactant.
2. A hard surface cleaning composition according to claim 1 , wherein in said copolymer said units A and B represent 50 to 100% in moles of the copolymer units.
3. A hard surface cleaning composition according to claim 1 , wherein in said copolymer the molar ratio between said units A and B is between 1/99 and 25/75.
4. A hard surface cleaning composition according to claim 1 , wherein said copolymer additionally comprises :
non-ionic, hydrophilic or hydrophobic C N units, and/or
anionic or potentially anionic C A units.
5. A hard surface cleaning composition according to claim 1 , wherein said copolymer is a statistical copolymer.
6. A hard surface cleaning composition according to claim 1 , wherein in said copolymer said betaine group or mixture thereof of said unit A is or are pendant groups of said copolymer.
7. A hard surface cleaning composition according to claim 1 , wherein in said copolymer said units A and B, alternatively with other units, form a polyalkylene hydrocarbon chain, alternatively broken by one or more nitrogen or sulphur atom.
8. A hard surface cleaning composition according to claim 1 , wherein said copolymer is obtainable by a copolymerization step by introducing:
a monomer A, containing an ethylenically unsaturated group and a sulphobetaine group,
vinyl pyrrolidone, and
a free radicals source.
9. A hard surface cleaning composition according to claim 1 , wherein said copolymer is present at a level of from 0.001% to 10% of the total weight of said composition.
10. A hard surface cleaning composition according to claim 1 , wherein said composition is a liquid hard surface cleaning composition.
11. A hard surface cleaning composition according to claim 1 , wherein said surfactant is present at a level of from 0.01% to 20% by weight of the composition.
12. A hard surface cleaning composition according to claim 1 , wherein said composition has an acidic to neutral pH and alternatively additionally comprises an acid.
13. A pre-moistened hard surface cleaning wipe comprising a substrate impregnated with a hard surface cleaning composition according to claim 1 .
14. A process of cleaning a hard surface with a hard surface cleaning composition according to claim 1 .
15. A process of cleaning a hard surface according to claim 14 , wherein said hard surface is selected from the group consisting of bathroom surfaces.