Silicone aromatic ester emulsifiers
Patent 5523445 Issued on June 4, 1996. Estimated Expiration Date: 
August 9, 2015. 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.
August 9, 2015. 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 3511699 Silicone alkoxylated esters carboxylates Silicone ester emulsifiers Patent #: 5446183 InventorApplicationNo. 512900 filed on 08/09/1995US Classes:556/437, The carbonyl is part of a -COO- group556/440Silicon and the oxy of the -COO- group are bonded directly to the same hydrocarbon groupExaminersPrimary: Shaver, Paul F.International ClassesC07F 007/08C07F 007/18 AbstractThe invention discloses novel ester emulsifiers. Compounds of the invention are made by reacting (a) a carboxy silicone, and (b) an alkyl aromatic alcohol alkoxylate containing 1 to 20 carbon atioms in the alkyl group. The compounds of the invention by virtue of (i) the silicone group, (ii) the aromatic group and (iii) the polyoxyalkylene present in the compound are extremely efficient emulsifiers and detergents for a variety of oils at heretofore unknown levels. |
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