Heavy duty laundry detergent
First Claim
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1. A heavy duty particulate laundry detergent composition comprising in weight percentages, 12% paraffin sulfonate wherein the paraffin alkyl group is from 14 to 20 carbons with an average of 15 carbons, 6% higher olefin sulfonate produced by sulfonating an alpha-olefin of 15 to 20 carbons with about one equivalent of diluted sulfur trioxide, neutralizing with excess sodium hydroxide and heating the alkaline mixture above 150°
- C. to open the sultone rings in the mixture, 25% polysilicate of the formula Na2 SiO3 wherein the ratio Na2 O to SiO2 is 1 to 2.5, 10% 4 A zeolite molecular sieve containing 2% moisture and having a mean particle diameter of 8.3 microns, 0.5% sodium carboxymethyl cellulose, 1% optical brightener, 0.5% perfume, 26.7% anhydrous sodium sulfate, 15% moisture and 3.3% other materials associated with paraffin and olefin sulfonates.
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Abstract
This invention relates to heavy duty laundry detergent compositions comprising a water-soluble mixture of paraffin sulfonate detergent, olefin sulfonate detergent and sodium silicate plus a water-insoluble molecular sieve or colloidal silica.
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Citations
3 Claims
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1. A heavy duty particulate laundry detergent composition comprising in weight percentages, 12% paraffin sulfonate wherein the paraffin alkyl group is from 14 to 20 carbons with an average of 15 carbons, 6% higher olefin sulfonate produced by sulfonating an alpha-olefin of 15 to 20 carbons with about one equivalent of diluted sulfur trioxide, neutralizing with excess sodium hydroxide and heating the alkaline mixture above 150°
- C. to open the sultone rings in the mixture, 25% polysilicate of the formula Na2 SiO3 wherein the ratio Na2 O to SiO2 is 1 to 2.5, 10% 4 A zeolite molecular sieve containing 2% moisture and having a mean particle diameter of 8.3 microns, 0.5% sodium carboxymethyl cellulose, 1% optical brightener, 0.5% perfume, 26.7% anhydrous sodium sulfate, 15% moisture and 3.3% other materials associated with paraffin and olefin sulfonates.
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Current AssigneeColgate-Palmolive Company
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Original AssigneeColgate-Palmolive Company
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InventorsYurko, Joseph A.
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Primary Examiner(s)Albrecht, Dennis L.
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Application NumberUS06/170,987Time in Patent Office1,117 DaysField of Search252/131, 252/140, 252/174.25, 252/179, 252/535, 252/536, 252/554, 252/555US Class Current510/324CPC Class CodesC11D 1/14 derived from aliphatic hydr...C11D 1/37 Mixtures of compounds all o...C11D 3/128 Aluminium silicates, e.g. z...
