Use of polymers containing polyvinylamine and polyvinylamide in order to prevent smell in dishwashers

• US 7,867,971 B2
• Filed: 09/09/2004
• Issued: 01/11/2011
• Est. Priority Date: 09/15/2003
• Status: Expired due to Fees

• Current Assignee: BASF AG (BASF SE)
• Original Assignee: BASF AG (BASF SE)
• Inventors: Mueller, Bettina, Becker, Heike, Guzmann, Marcus
• Primary Examiner(s): Eashoo; Mark
• Assistant Examiner(s): Stanley; Jane L
• Application Number:
  US10/571,922
• Publication Number:
  US 20070082835A1
• Time in Patent Office: 2,315 Days
• Field of Search: 510/513, 510/514, 510/440, 510/441
• US Class Current: 510/513
• CPC Class Codes: C08F 126/02 by a single or double bond to nitrogen
• CPC Class Codes: C08F 226/02 by a single or double bond to nitrogen
• CPC Class Codes: C08F 2810/20 leading to a crosslinking, either explicitly or inherently
• CPC Class Codes: C08F 8/12 Hydrolysis
• CPC Class Codes: C11D 3/0068 Deodorant compositions
• CPC Class Codes: C11D 3/3769 (Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines

Abstract

Use of polymers which comprise

• • (a) monomer units of the formula I

• •  in which R¹ is hydrogen or C₁-C₄-alkyl,
  • (b) monomer units of the formula II

• •  in which R¹ and R², independently of one another, are hydrogen or C₁-C₄-alkyl,
  • or
  • (c) monomer units of the formula I and monomer units of the formula II, for odor prevention during machine dishwashing.

Claims

1. A composition comprising a material selected from the group consisting of polyvinyl alcohol prepared by incomplete hydrolysis of polyvinyl acetate comprising a degree of hydrolysis of from 88 to 98%, gelatin, polyvinylpyrrolidone, polyethylene oxide, cellulose, starch, and mixtures thereof;

and a neutral polymer which comprises

(a) units of the formula I

2. The composition of claim 1, wherein the neutral polymer comprises 0.1 to 99.9 mol % of the units of the formula I and 0.1 to 99.9 mol % of the units of the formula II.

3. The composition of claim 1, wherein the neutral polymer additionally comprises, in copolymerized form, a monoethylenically unsaturated comonomer (d).

4. The composition of claim 1, wherein the neutral polymer is coated with the material.

5. The composition of claim 1, wherein the neutral polymer is embedded in a matrix of the material.

6. The composition of claim 3, wherein the neutral polymer comprises, in copolymerized form, 20 to 99.9 mol % of the units (a) or (c) and 0.1 to 80 mol % of the comonomer (d).

7. The composition of claim 6, wherein the neutral polymer is crosslinked.

8. The composition of claim 7, wherein the neutral polymer additionally comprises, in co-polymerized form, a crosslinking comonomer (e) comprising at least two ethylenically unsaturated double bonds, wherein the at least two ethylenically unsaturated double bonds are not conjugated to each other.

9. The composition of claim 7, wherein the neutral polymer is present in the form of a popcorn polymer.

10. The composition of claim 8, wherein the neutral polymer is present in the form of a popcorn polymer.

11. The composition of claim 8, wherein the neutral polymer comprises, in copolymerized form, 20 to 99.9 mol % of the units (a) or (c), 0.1 to 80 mol % of the comonomer (d) and 0.1 to 20 mol % of the comonomer (e).

12. The composition of claim 11, wherein the neutral polymer is present in the form of a popcorn polymer.

13. A method of preventing or reducing odor during dishwashing in a dishwashing machine, comprising placing the composition of claim 1 in the dishwashing machine to prevent or reduce the odor.

14. A method of preventing or reducing odor during dishwashing in a dishwashing machine, comprising placing the composition of claim 2 in the dishwashing machine to prevent or reduce the odor.

15. A method of preventing or reducing odor during dishwashing in a dishwashing machine, comprising placing the composition of claim 3 in the dishwashing machine to prevent or reduce the odor.

16. A method of preventing or reducing odor during dishwashing in a dishwashing machine, comprising placing the composition of claim 6 in the dishwashing machine to prevent or reduce the odor.

17. A method of preventing or reducing odor during dishwashing in a dishwashing machine, comprising placing the composition of claim 4 in the dishwashing machine to prevent or reduce the odor.

18. A method of preventing or reducing odor during dishwashing in a dishwashing machine, comprising placing the composition of claim 5 in the dishwashing machine to prevent or reduce the odor.

19. A method of preventing or reducing odor during dishwashing in a dishwashing machine, which comprises placing in the dishwashing machine a composition comprising (1) a material selected from the group consisting of polyvinyl alcohol prepared by incomplete hydrolysis of polyvinyl acetate comprising a degree of hydrolysis of from 88 to 98%, gelatin, polyvinylpyrrolidone, polyethylene oxide, cellulose, starch, and mixtures thereof;

and (2) a neutral polymer which comprises

(a) units of the formula I

20. A composition comprising a material selected from the group consisting of polyvinyl alcohol prepared by incomplete hydrolysis of polyvinyl acetate comprising a degree of hydrolysis of from 88 to 98%, gelatin, polyvinylpyrrolidone, polyethylene oxide, cellulose, starch, and mixtures thereof;

and a neutral polymer which comprises

(a) units of the formula I

21. The composition of claim 20, wherein the neutral polymer is crosslinked and present in the composition in the form of a popcorn polymer.