Automatic dishwashing compositions containing water soluble cationic or amphoteric polymers
First Claim
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1. A detergent composition which reduces corrosion of dishware in an automatic dishwashing machine comprising:
- a) a glassware protective amount of a water-soluble cationic polymer having at least 1 monomer unit having a cationic charge over a portion of the pH range 6-11, wherein the cationic polymer is a compound of formula I;
##STR7## and b) 1 to 90 wt. % of a builder selected from the group consisting of a phosphate builder, a non-phosphate builder and mixtures thereof.
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Abstract
An automatic dishwashing detergent composition is described which contains an effective amount of a defined water soluble cationic or amphoteric polymer and a phosphate or nonphosphate builder. The polymers are soluble or dispersible to at least 0.01% by weight in distilled water at 25° C. A method of using the polymers to prevent fading or corrosion of dishware is also described.
46 Citations
12 Claims
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1. A detergent composition which reduces corrosion of dishware in an automatic dishwashing machine comprising:
a) a glassware protective amount of a water-soluble cationic polymer having at least 1 monomer unit having a cationic charge over a portion of the pH range 6-11, wherein the cationic polymer is a compound of formula I;
##STR7## and b) 1 to 90 wt. % of a builder selected from the group consisting of a phosphate builder, a non-phosphate builder and mixtures thereof.- View Dependent Claims (3, 4, 5, 6)
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2. A detergent composition which reduces corrosion of dishware in an automatic dishwashing machine comprising:
a) a glassware protective amount of a water-soluble cationic polymer, having at least 1 monomer unit having a cationic charge over a portion of the pH range 6-11, wherein the cationic polymer is a compound having the formula III;
##STR8## and b) 1 to 90 wt. % of a builder selected from the group consisting of a phosphate builder, a non-phosphate builder and mixtures thereof.
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7. A method for reducing fading or corrosion of dishware in an automatic dishwashing machine comprising the steps of:
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a) applying a glassware protective amount of a composition comprising; (i) a glassware protective amount of a water soluble cationic polymer having at least 1 monomer unit having a cationic charge over a portion of the pH range 6-11, wherein the cationic polymer is a compound of formula I;
##STR9## (ii) a phosphate or nonphosphate builder present in an amount of from 1 to 90 wt. %; andb) substantially cleaning the dishware without substantially fading or corroding. - View Dependent Claims (9, 10, 11, 12)
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8. A method for reducing fading or corrosion of dishware in an automatic dishwashing machine comprising the steps of:
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a) applying a glassware protective amount of a composition comprising; (i) a glassware protective amount of a water soluble cationic or amphoteric polymer having at least 1 monomer unit having a cationic change over a portion of the pH ranges 6-11, wherein the cationic polymer is a compound having the formula III;
##STR10## (ii) a phosphate or nonphosphate builder present in an amount of from 1 to 90 wt. %; andb) substantially cleaning the dishware without substantially fading or corroding.
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Specification