Process for making cosmetic compositions using polyether siloxane copolymer network compositions
Patent 6759479 Issued on July 6, 2004. Estimated Expiration Date: 
March 21, 2023. 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.
March 21, 2023. 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 3159601 3159662 3220972 3715334 3775452 3814730 Ultraviolet curable epoxy silicone coating compositions Method for producing silicone rubber powder Oily paste composition Silicone cosmetic composition InventorAssigneeApplicationNo. 10393858 filed on 03/21/2003US Classes:524/837, Solid polymer or SICP derived from Si-containing reactant528/27, Organic Si-free reactant contains a heterocyclic ring528/31, Silicon reactant contains a silicon-to-hydrogen bond524/379Carbon atom single bonded to an oxygen atom and wherein the carbon atom is not double bonded to a chalcogen atom DNRM, e.g., alcohols, etc.ExaminersPrimary: Moore, Margaret G.Assistant: Zimmer, Marc S. Foreign Patent References
International ClassC08L 8300AbstractA method of making a cosmetic composition comprising the reaction products of MaMHbMEcDdDHeDEfTgTHhTEiQj whereM=R1R2R3SiO1/2;MH=R4R5HSiO1/2;ME=R6R7RESiO1/2;D=R8R9SiO2/2;DH=R10HSiO2/2;DE=R11RESiO2/2;T=R12SiO3/2;TH=HSiO3/2;TE=RESiO3/2; andQ=SiO4/2;where R1, R2, R3, R8, R9 and R12 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms; R4, R5 and R10 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or hydrogen; R6, R7, R11 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or RE; each RE is independently a monovalent hydrocarbon radical containing one or more oxirane moieties having from one to sixty carbon atoms; the stoichiometric subscripts a, b, c, d, e, f, g, h, i, and j are either zero or positive subject to the following limitations: a+b+c>1; b+e+h>1; c+f+i>1; b+e+h>c+f+i; and when d+e+f+g+h+i+j=0, a+b+c=2. In a preferred embodiment the reaction product of the present invention is a polyether siloxane copolymer network. In another preferred embodiment embodiment the reaction product of the present invention is a polyether siloxane copolymer network swollen with a volatile low molecular weight silicon containing compound. These compositions are useful for a variety of personal care compositions.Other References
Field of SearchSilicon reactant contains a silicon-to-hydrogen bondOrganic Si-free reactant contains a heterocyclic ring Carbon atom single bonded to an oxygen atom and wherein the carbon atom is not double bonded to a chalcogen atom DNRM, e.g., alcohols, etc. Solid polymer or SICP derived from Si-containing reactant | |
