Detergent compositions containing polyether polycarboxylates

• US 5,061,396 A
• Filed: 10/16/1989
• Issued: 10/29/1991
• Est. Priority Date: 10/16/1989
• Status: Expired due to Fees

• Current Assignee: National Starch and Chemical Holding Corporation (Nouryon BV)
• Original Assignee: National Starch and Chemical Investment Holding Corporation
• Inventors: Lovine, Carmine P., Leighton, John C., Chandran, Rama S., Brase, Ingrid
• Primary Examiner(s): Willis, Prince E.
• Assistant Examiner(s): SILBERMANN, JAMES M
• Application Number:
  US07/422,362
• Time in Patent Office: 743 Days
• Field of Search: 252/174.24, 252/174.25, 252/546, 252/174.18, 252/174.17, 252/DIG. 14, 252/DIG. 2
• US Class Current: 510/361
• CPC Class Codes: C11D 3/3757 (Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions

Abstract

This invention provides detergent compositions, particularly liquid compositions, utilizing builders selected from the group consisting of a) polyether polycarboxylate compositions derived from polymers of furan/maleic anhydride copolymers; or b) polyether polycarboxylate compositions derived from polymers comprising furan, maleic anhydride and at least one copolymerized comonomer, selected from the group consisting of alkenyl alkyl ethers, alkyl acrylates, alkenyl carboxyalkyl ethers, vinyl esters of carboxylic acids, unsaturated carboxylic acids, unsaturated dicarboxylic acids and their anhydrides and esters, olefins and furan; c) polymers comprising furan, maleic anhydride, and at least one copolymerizable comonomer other than furan and maleic anhydride, which polymers may be intermediates in the production of the polyether polycarboxylate compositions by oxidation of the intermediate polymers; and d) combinations thereof.

Claims

1. A detergent composition comprising from about 0.5 to 65% by weight of a surfactant and from about 1 to 80% by weight of a builder, wherein the builder is a polymer selected from the group consisting of:

a) a polymer derived from a polymer of furan and maleic anhydride, comprising a repeating unit of the structure;

##STR10## wherein R is H, --CH₃, --CH₂ CH₃, or a combination thereof;

X is H, or a salt forming cation, or a combination thereof; and

m is at least 1;

b) a polymer derived from a polymer of furan, maleic anhydride and at least one copolymerized comonomer, comprising a repeating unit of the structure;

##STR11## wherein A is a repeating unit derived from at least one copolymerized comonomer, selected from the group consisting of alkenyl alkyl ethers, alkyl acrylates, alkenyl carboxyalkyl ethers, vinyl esters of carboxylic acids, unsaturated carboxylic acids, unsaturated dicarboxylic acids and their anhydrides and esters, olefins and furan;

R is H, --CH₃, --CH₂ CH₃, or a combination thereof;

X is H, or a salt forming cation, or a combination thereof;

m is at least 1;

n is greater than zero; and

p is an integer from about 1 to 300; and

c) combinations thereof.

2. The detergent composition of claim 1, wherein the builder is a polymer further comprising hydrolysis products of the polymer and salts thereof.

3. The detergent composition of claim 2, wherein the builder is a sodium potassium, ammonium, monoethanolamine or triethanolamine salt of the polymer.

4. The detergent composition of claim 1, wherein the builder is a polymer further comprising ester derivatives of a repeating unit derived from the maleic anhydride.

5. The detergent composition of claim 1, wherein the composition further comprises more than one surfactant.

6. The detergent composition of claim 1, wherein the composition further comprises at least one additional builder.

7. The detergent composition of claim 1, comprising from about 0.5 to 30% by weight of a surfactant and from about 1 to 65% by weight of a builder.

8. The detergent composition of claim 1, wherein the detergent composition is in liquid form.

9. The detergent composition of claim 8, wherein the detergent composition comprises from about 5 to 50% by weight surfactant(s), 1 to 55% by weight builder(s), 0.5 to 10% by weight buffer(s), and 1 to 15% by weight hydrotrope(s).

10. A method for washing fabric, comprising agitating the fabric in the presence of water and a detergent composition comprising from about 0.5 to 65% by weight of a surfactant and from about 1 to 80% by weight of a builder, wherein the builder is selected from the group consisting of:

a) a polymer derived from a polymer of furan and maleic anhydride comprising a repeating unit of the structure;

##STR12## wherein R is H, --CH₃, --CH₂ CH₃, or a combination thereof;

X is H, or a salt forming cation, or a combination thereof; and

m is at least 1;

b) a polymer derived from a polymer of furan, maleic anhydride and at least one copolymerized copolymer, comprising a repeating unit of the structure;

##STR13## wherein A is a repeating unit derived from at least one copolymerized comonomer, selected from the group consisting of alkenyl alkyl ethers, alkyl acrylates, alkenyl carboxyalkyl ethers, vinyl esters of carboxylic acids, unsaturated carboxylic acids, unsaturated dicarboxylic acids and their anhydrides and esters, olefins and furan;

R is H, --CH₃, --CH₂ CH₃, or a combination thereof;

X is H, or a salt forming cation, or a combination thereof;

m is at least 1;

n is greater than zero; and

p is an integer from about 1 to 300; and

c) combinations thereof.