Ultramild antibacterial cleaning composition for frequent use

• US 6,045,817 A
• Filed: 09/18/1998
• Issued: 04/04/2000
• Est. Priority Date: 09/26/1997
• Status: Expired due to Term

• Current Assignee: Diversey Incorporated (Sealed Air)
• Original Assignee: Diverseylever Incorporated (Unilever PLC)
• Inventors: Grinstead, Dale Albert, Vincent, Carol Kregler, Chan, Kam Kuen, Gengler, Arnoud Ubald Maria, Ananthapadmanabhan, Kavssery Parameswaran
• Primary Examiner(s): Clardy, S. Mark
• Assistant Examiner(s): Shelborne, Kathryne E.
• Application Number:
  US09/156,415
• Time in Patent Office: 564 Days
• Field of Search: 424/405, 424/400, 424/78.03
• US Class Current: 424/405
• CPC Class Codes: A61K 2800/5426 cationic
• CPC Class Codes: A61K 2800/596 Mixtures of surface active compounds
• CPC Class Codes: A61K 8/42 Amides
• CPC Class Codes: A61K 8/43 Guanidines
• CPC Class Codes: A61K 8/442 substituted by amido group(s)
• CPC Class Codes: A61K 8/466 containing sulfonic acid derivatives; Salts
• CPC Class Codes: A61K 8/602 Glycosides, e.g. rutin
• CPC Class Codes: A61K 8/604 Alkylpolyglycosides; Derivatives thereof, e.g. esters
• CPC Class Codes: A61K 8/73 Polysaccharides
• CPC Class Codes: A61K 8/731 Cellulose; Quaternized cellulose derivatives
• CPC Class Codes: A61K 8/817 Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions or derivatives of such polymers, e.g. vinylimidazol, vinylcaprolactame, allylamines (Polyquaternium 6)
• CPC Class Codes: A61K 8/84 obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
• CPC Class Codes: A61K 8/86 Polyethers
• CPC Class Codes: A61K 8/88 Polyamides
• CPC Class Codes: A61Q 17/005 Antimicrobial preparations
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: C11D 1/662 Carbohydrates or derivatives
• CPC Class Codes: C11D 1/72 Ethers of polyoxyalkylene glycols
• CPC Class Codes: C11D 1/90 Betaines
• CPC Class Codes: C11D 1/92 : Sulfobetaines ; Sulfitobetaines
• CPC Class Codes: C11D 1/94 : Mixtures with anionic, cationic or non-ionic compounds
• CPC Class Codes: C11D 3/227 : with nitrogen-containing groups
• CPC Class Codes: C11D 3/323 : urea or derivatives thereof
• CPC Class Codes: C11D 3/3719 : Polyamides or polyimides
• CPC Class Codes: C11D 3/3723 : Polyamines or polyalkyleneimines
• CPC Class Codes: C11D 3/3773 : in liquid compositions
• CPC Class Codes: C11D 3/48 : Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions

Abstract

An antibacterial cleaning composition is described which has about 0.05 to about 1 wt. % of a cationic polymer having a charge density of 0.0025 or higher, about 0.2 to about 5% of a zwitterionic surfactant, about 0.2 to about 5 wt. % of at least one biguanide compound, and optionally a nonionic surfactant and a polymeric biocide compound. The composition has a pH of 7.5 or greater.

Claims

1. An antibacterial cleaning composition comprising

a) about 0.05 to about 1 wt. % of a cationic polymer having a charge density of 0.0025 or higher;

b) about 0.2 to about 5% of a zwitterionic surfactant;

c) about 0.2 to about 5 wt. % of at least one biguanide compound;

d) 0 to about 10 wt. % of a nonionic surfactant; and

e) 0 to 5 wt. % of a polymeric biocide compound,

the composition having a pH of 7.5 or greater.

2. An antibacterial cleaning composition according to claim 1 wherein the cationic polymer has a molecular weight of 300 to 500,000 daltons.

3. An antibacterial cleaning composition according to claim 2 wherein the cationic polymer is selected from the group consisting of polyethyleneimine, polydimethyl diallyl ammonium chloride, polyquaternium 2, a modified cellulosic polymer and mixtures thereof.

4. An antibacterial cleaning composition according to claim 1 wherein the biguanide compound is a salt of chlorhexidine selected from the group consisting of gluconate, acetate, formate, lactate, isethionate and succinamate.

5. An antibacterial cleaning composition according to claim 1 wherein the zwitterionic surfactant is a compound having a propionate, betaine or sultaine structure.

6. An antibacterial cleaning composition according to claim 1 wherein the nonionic is present in an amount of about 0.2 to about 10 wt. %.

7. An antibacterial cleaning composition according to claim 6 wherein the nonionic surfactant is an alkylpolyglucoside having a formula:

space="preserve" listing-type="equation">R--O(--G).sub.n

wherein R is an alkyl group having from about 8 to abut 22 carbon atoms and n is a number from 1-10.

8. An antibacterial cleaning composition according to claim 1 wherein the polymeric biocide compound is a salt of a polyhexamethylene compound having a formula:

##STR3## wherein HX is a salt forming acid component and n is 2 to 12.

9. A method of cleaning a surface with an antibacterial cleansing composition comprising the following steps:

a) selecting an antibacterial cleaning composition comprising;

i) about 0.05 to about 1 wt. % of a cationic polymer having a charge density of 0.0025 or higher,

ii) about 0.2 to about 5 wt. % of a zwitterionic surfactant,

iii) about 0.2 to about 5 wt. % of at least one biguanide compound,

iv) 0 to about 10 wt. % of a nonionic surfactant, and

v) 0 to 5 wt. % of a polymeric biocide compound; and

b) cleansing a surface with the composition.

10. A method according to claim 9 wherein the cationic polymer has a molecular weight of 300 to 500,000 daltons.

11. A method according to claim 9 wherein the cationic polymer is selected from the group consisting of polyethyleneimine, polydimethyl diallyl ammonium chloride, polyquaternium 2, a modified cellulosic polymer and mixtures thereof.

12. A method according to claim 9 wherein the biguanide compound is a salt of chlorhexidine selected from the group consisting of gluconate, acetate, formate, lactate, isethionate and succinamate.

13. A method according to claim 9 wherein the zwitterionic surfactant is a compound having a propionate, betaine or sultaine structure.

14. A method according to claim 9 wherein the surface is a skin surface.