Silicone ester quaternary compounds
Patent 5153294 Issued on October 6, 1992. Estimated Expiration Date: 
December 26, 2011. 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.
December 26, 2011. 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 ReferencesHair conditioning compositions containing dialkylamino hydroxy organosilicon compounds and their derivatives Guerbet quaternary compounds Silicone amphoteric polymers Novel silicone quaternary compounds Patent #: 5098979 InventorApplicationNo. 813449 filed on 12/26/1991US Classes:528/26, Organic Si-free reactant is a carboxylic acid or derivative424/70.122, Amino or amido containing427/387, Silicon compound containing coating528/15, Material contains a Group VIII metal atom528/28, Organic Si-free reactant is a nitrogen-containing compound528/31, Silicon reactant contains a silicon-to-hydrogen bond548/951Plural hetero atoms in the hetero ringExaminersPrimary: Marquis, Melvyn I.Assistant: Glass, Margaret W. International ClassC08G 077/04AbstractThe present invention relates to a series of novel ester containing quaternary silicone polymers, useful in softening hair, and fiber and conditioning skin. The compounds of the present invention are prepared by the esterification reaction of chloroacetic acid with a pendant hydroxyl group which is present on a silicone polymer. In a preferred embodiment the hydroxy containing silicone polymer has been alkoxylated with ethylene oxide, propylene oxide or mixtures thereof. |
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