Use of a water-soluble copolymers based on acrylamidoalkylenesulfonic acid as a detergent additive

• US 5,607,618 A
• Filed: 08/19/1993
• Issued: 03/04/1997
• Est. Priority Date: 08/22/1992
• Status: Expired due to Fees

• Current Assignee: Hoechst Aktiengesellschaft (Sanofi )
• Original Assignee: Hoechst Aktiengesellschaft (Sanofi )
• Inventors: Antwerpen, Werner, Reinhardt, Gerd, Hille, Martin
• Primary Examiner(s): Burn, Brian M.
• Application Number:
  US08/109,229
• Time in Patent Office: 1,293 Days
• Field of Search: 252/174.23, 252/542, 252/545, 252/547, 252/550, 252/552
• US Class Current: 510/302
• CPC Class Codes: C11D 3/0021 Dye-stain or dye-transfer inhibiting compositions
• CPC Class Codes: C11D 3/378 (Co)polymerised monomers containing sulfur, e.g. sulfonate

Abstract

The present invention relates to the the use of water-soluble copolymers based on acrylamidoalkylenesulfonic acid, vinylacetamide and, if appropriate, other monomers, comprising

5-90% by weight of structural units of the formula ##STR1## in which R¹ is hydrogen or methyl,

R² is C₂ -C₁₀ -alkylene, preferably C₂ -C₆ -alkylene, particularly preferably C₄ -alkylene, and

Me is ammonium or an alkali metal ion,

5-95% by weight of structural units of the formula ##STR2## in which R³ and R⁴ independently of one another are hydrogen, methyl or ethyl, or R³ and R⁴ together are a propylene group which, including a radical ##STR3## form a pyrrolidone radical, 0-90% by weight of structural units of the formula ##STR4## in which X is a halogen, preferably chloride,

R⁵ and R⁶ independently of one another are C₁ -C₆ -alkyl, prefrably C₁ -C₃ -alkyl, in particular methyl or ethyl, and

0-90% by weight of structural units of the formula --CHR⁷ -CHR⁸ --

in which

R⁷ is hydrogen or methyl and

R⁸ is CONH₂, CON(CH₃)₂, cyano, SO₃ H, SO₃ Me, C₆ H₄ SO₃ H, C₆ H₄ SO₃ Me, CH₂ SO₃ H, CH₂ SO₃ Mr, COOH, COOMe or an ester group COOR, in which R is C₁ -C₁₅ -alkyl, preferably C₁ -C₈ -alkyl,

as a detergent additive for preventing reabsorption of detached dyestuffs and dyestuff degradation products.

Claims

1. A detergent composition containing a wash-active surfactant and an additive for preventing the readsorbation of dyestuffs and dyestuff degradation products consisting essentially of a water-soluble copolymer consisting of 5-90% by weight of structural units of the formula ##STR9## in which R¹ is hydrogen or methyl,

R² is C₂ -C₁₀ -alkylene, and

Me is ammonium or an alkali metal ion,

- 95% by weight of structural units of the formula ##STR10## in which R³ and R⁴ independently of one another are hydrogen, methyl or ethyl, or R³ and R⁴ together are a propylene group which, including a radical ##STR11## form a pyrrolidone radical, - 90% by weight of structural units of the formula

View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)

2. A detergent composition as claimed in claim 1, wherein a component imparting detergent properties to said composition selected from the group consisting of an anionic, nonionic and zwitterionic surfactant, and mixtures thereof.

3. A detergent composition containing an additive for preventing readsorbation of detached dyestuffs and dyestuff degradation products, as claimed in claim 2 wherein in said copolymer

R² is C₂ -C₆ -alkene,

X is chloride,

R⁵ and R⁶ independently of one another are C₁ -C₃ -alkyl, and

R is C₁ -C₈ -alkyl.

4. A detergent composition containing an additive for preventing readsorbation of detached dyestuffs and dyestuff degradation products, as claimed in claim 2 wherein, in said copolymer

R² is C₄ -alkylene, and

R⁵ and R⁶ independently of one another are methyl or ethyl.

5. A detergent composition containing an additive for preventing readsorbation of detached dyestuffs and dyestuff degradation products, as claimed in claim 2, wherein the copolymer employed comprises

40-90% by weight of structural units of the formula (I),

10-60% by weight of structural units of the formula (II) and

0-40% by weight of structural units of the formula (III).

6. A detergent composition containing an additive for preventing readsorbation of detached dyestuffs and dyestuff degradation products, as claimed in claim 2, wherein the copolymer employed comprises

40-70% by weight of 2-acrylamido-2-methyl-propane-sulfonic acid or vinylsulfinic acid,

2-20% by weight of vinylacetamide and

45-90% by weight of acrylamide.

7. A detergent composition containing an additive for preventing readsorbation of detached dyestuffs and dyestuff degradation products, as claimed in claim 2, wherein said copolymer has molecular weight (M_w) of 50,000 to 20·

10⁶.

8. A detergent as claimed in claim 2, wherein said detergent composition is a textile detergent, detergent compositions booster and/or aftertreatment agent for washing.

9. A detergent composition as claimed in claim 2, wherein said detergent composition is an industrial detergent.

10. A detergent composition as claimed in claim 2, wherein said detergent composition is a domestic detergent.

11. A detergent composition as claimed in claim 1, said composition comprising:

an anionic, nonionic or zwitterionic surfactant,

a said water-soluble copolymer, and

at least one of the following additional components;

a. a sequestering agent,

b. an optical brightener,

c. an enzyme,

d. a bleaching agent,

e. a stabilizing or activating agent for said bleaching agent or a combination of a stabilizing agent and an activating agent,

f. a washing alkali,

g. an anti-redeposition agent.

12. A washing bath comprising an aqueous wash liquor containing 0.2 to 10% by weight of the detergent composition of claim 1.

13. A washing bath comprising an aqueous wash liquor containing 0.2 to 10% by weight of the detergent composition of claim 11.

14. A method for preventing readsorption of detached dyestuffs and dyestuff degradation products, during washing with a detergent composition, comprising the step of adding to said detergent composition a water-soluble copolymer consisting of:

- 90% by weight of structural units of the formula ##STR12## in which R¹ is hydrogen or methyl,

R² is C₂ -C₁₀ -alkylene, and

Me is ammonium or an alkali metal ion,

- 95% by weight of structural units of the formula ##STR13## in which R³ and R⁴ independently of one another are hydrogen, methyl or ethyl, or

R³ and R⁴ together are a propylene group which, including a radical ##STR14## form a pyrrolidone radical, - 90% by weight of structural units of the formula

space="preserve" listing-type="equation">--CH═

CH--CH.sub.2 --.sup.+ NR.sup.5 R.sup.6 --CH.sub.2 --CH═

CH--X.sup.- (III)

in which

X is a halogen,

R⁵ and R⁶ independently of one another are C₁ -C₆ -alkyl, and

- 90% by weight of structural units of the formula

space="preserve" listing-type="equation">--CHR.sup.7 -CHR.sup.8 -- (IV)

in which

R⁷ is hydrogen or methyl and

R⁸ is CONH₂, CON(CH₃)₂, cyano, SO₃ H, SO₃ Me, C₆ H₄ SO₃ H, C₆ H₄ SO₃ Me, CH₂ SO₃ H or CH₂ SO₃ Me.

15. A detergent composition containing a wash-active surfactant and an additive for preventing the readsorbation of dyestuffs and dyestuff degradation products comprising a water-soluble copolymer comprising structural units of the formula (I) ##STR15## in which R¹ is hydrogen or methyl,

R² is C₂ -C₁₀ -alkylene, and

Me is ammonium or an alkali metal ion, structural units of the formula (II) ##STR16## in which R³ and R⁴ independently of one another are hydrogen, methyl or ethyl, or R³ and R⁴ together are a propylene group which, including a radical ##STR17## form a pyrrolidone radical, and structural units of the formula (III)

View Dependent Claims (16)

16. A detergent composition as claimed in claim 15, further comprising structural units of formula IV

17. A detergent composition containing a wash-active surfactant and an additive for preventing the readsorbation of dyestuffs and dyestuff degradation products comprising a water-soluble copolymer comprising 5-90% by weight of structural units of the formula (I) ##STR18## in which R¹ is hydrogen or methyl,

R² is C₂ -C₁₀ -alkylene, and

Me is ammonium or an alkali metal ion,

- 95% by weight of the structural units of the formula (II) ##STR19## in which R³ and R⁴ independently of one another are hydrogen, methyl or ethyl, or R³ and R⁴ together are a propylene group which, including a radical ##STR20## form a pyrrolidone radical, and structural units of formula (III) to be present in an amount up to 90% by weight