Sulfated silicone polymers
Patent 4960845 Issued on October 2, 1990. Estimated Expiration Date: 
November 8, 2009. 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.
November 8, 2009. 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 ReferencesRoom temperature-curable polyorganosiloxane compositions having resistance to soiling Patent #: 4486566 InventorApplicationNo. 433155 filed on 11/08/1989US Classes:528/25, With organic silicon-free reactant528/10, FROM SILICON REACTANT HAVING AT LEAST ONE SILICON-TO-HYDROGEN OR -CARBON BOND528/29, Organic Si-free reactant is an alcohol or alcoholate528/30, From silicon-containing reactant having at least one polyvalent atom other than carbon, oxygen, or nitrogen528/31, Silicon reactant contains a silicon-to-hydrogen bond556/450Two silicons bonded directly to the same oxygenExaminersPrimary: Marquis, Melvyn I.Assistant: Hellender, Karen A. International ClassC08G 077/04AbstractThe invention discloses novel sulfated silicone polymers which have the sulfate group on a pendant functionality rather than within the polymer backbone. Compounds of the invention by virtue of the presence of this anionic group, are high foaming compounds which deposit on the surface of substrates. The deposition can be enhanced by forming complexes with cationic surface active agents. These compounds alter the substrate's surface physical properties providing softness and antistatic properties, but do not exhibit defoaming properties which would minimize their applicability to detergent systems.Field of SearchFROM SILICON REACTANT HAVING AT LEAST ONE SILICON-TO-HYDROGEN OR -CARBON BONDWith organic silicon-free reactant Organic Si-free reactant is an alcohol or alcoholate From silicon-containing reactant having at least one polyvalent atom other than carbon, oxygen, or nitrogen Silicon reactant contains a silicon-to-hydrogen bond Two silicons bonded directly to the same oxygen |
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