Detergent composition containing an alkali carbonate
Patent 4210550 Issued on July 1, 1980. Estimated Expiration Date: 
July 14, 1998. 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.
July 14, 1998. 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 3042621 3661787 3692684 3696044 3749675 3761415 3817870 3850852 Non-phosphate spray dried detergents containing dicarboxylic acid salts Denture cleaning composition InventorAssigneeApplicationNo. 05/924552 filed on 07/14/1978US Classes:510/349, Coated, encapsulated, or impregnated particle component in a physically heterogeneous composition (e.g., coated or encapsulated particles mixed with powder, granules, etc.)252/180, Plant or organic material containing510/277, Multifunctional assembly (e.g., package with detergent and prespotter in separate containers, etc.)510/352, Plural sulfur-containing, anionically substituted surfactants510/361, Polycarboxylic acid component, or acid anhydride or salt thereof (e.g., sodium citrate, maleic anhydride polymer, polyacrylic acid, etc.)516/19The compound contains -C(=O)OH group or salt thereofExaminersPrimary: Albrecht, Dennis L.Attorney, Agent or FirmInternational ClassesC11D 17/00 (20060101)C11D 3/10 (20060101) C11D 3/20 (20060101) AbstractThe present invention relates to a detergent composition containing one or more surfactants, an alkali carbonate and an acid, and in which detergent composition the acidic and the alkaline constituent are separately present, the acidic constituent having a higher rate of solubility in a wash liquor than the alkaline constituent, and the total amount of alkali being present in excess relative to the amount of acid. Characteristic of the invention is that the acidic constituent of the detergent composition contains 5 to 30 per cent by weight, calculated on the total amount of detergent composition, of one or more acids having the formula:where n is 2,3, or 4It is preferred that the acidic constituent should contain a mixture consisting of 20 to 40 per cent by weight of adipic acid, 20 to 40 per cent by weight of succinic and 20 to 60 per cent by weight of glutaric acid. | |
