Cleaning compositions containing cross-linked polymeric thickeners and hypochlorite bleach
Patent 4867896 Issued on September 19, 1989. Estimated Expiration Date: 
February 17, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 17, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2798053 2810716 2985625 3544488 3579455 Slurried detergent and method Foam cleaner for food plants Patent #: 4228048 InventorsAssigneeApplicationNo. 07/157425 filed on 02/17/1988US Classes:510/223, Polycarboxylic acid component, or salt thereof252/187.26, Sodium252/187.34, Chloroisocyanurate510/370, Liquid, paste, foam, or gel (e.g., slurry, aerosol composition or package, etc.)510/476, Carboxylic acid anhydride, free carboxyl group, or salt thereof in the polymer516/102, The organic material contains organic compound containing nitrogen, except if present solely as NH4+516/108, The compound contains carboxylic acid ester group (e.g., glycerides)516/109The compound contains -C(=O)OH or salt thereof (e.g., calcium stearate)ExaminersPrimary: Barr, JosephineAttorney, Agent or FirmInternational ClassesC11D 3/37 (20060101)C11D 3/395 (20060101) AbstractLiquid or gel-type cleaning compositions are reported containing a water-soluble polymer formed from monomers comprising at least one , ଲ-unsaturated carboxylic acid or salt thereof and one or more cross-linking monomers each having at least two unsaturated groups and which after cross-linking consists of a saturated hydrocarbon or aromatic structure. The polymer must be stable to oxidation by 1% hypochlorite at 25° C. for greater than two weeks without exhibiting any phase separation or greater than 50% viscosity loss from the composition. Besides polymer, the compositions will contain a chlorine bleach agent. | |
