Silicone alkoxylated esters carboxylates
Patent 5296625 Issued on March 22, 1994. Estimated Expiration Date: 
October 26, 2012. 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.
October 26, 2012. 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 3458554 3657305 3778458 Ester containing silylated polyethers Dimethicone copolyol sulfosuccinates Organosilicon sulphosuccinates Alkoxylated silicon polymers Method for preparation of silyl functional fumarates Diorganopolysiloxanes comprising benzalmalonate functional groups Silicone fatty esters InventorsApplicationNo. 966434 filed on 10/26/1992US Classes:556/437, The carbonyl is part of a -COO- group554/77, Boron, selenium, or silicon containing556/440Silicon and the oxy of the -COO- group are bonded directly to the same hydrocarbon groupExaminersPrimary: Shaver, Paul F.International ClassC07F 007/08AbstractThe invention relates to a series of novel silicone alkoxylated esters which contain terminal carboxyl groups. This class of compounds provides unique solubility in many organic solvents as well as very substantive salts of the carboxylic acid when neutralized with base. The compounds of the present invention are prepared by reacting a the hydroxyl group in a silicone polymer with an anhydride. |
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