Epoxy ebonite compositions
Patent 7005483 Issued on February 28, 2006. Estimated Expiration Date: 
March 11, 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 11, 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 ReferencesOrgano-sulfur composition for forming thermoparticulating coating Sulfur modified epoxy resin sealing composition Epoxy resin composition containing acrylic oligomer, amine and amine-terminated nitrile rubber Liquid ebonite anticorrosive coating for metals Oleic acid as an additive for a protective coating Patent #: 5997953 InventorsApplicationNo. 10387140 filed on 03/11/2003US Classes:525/523, Solid polymer contains more than one 1,2-epoxy group or is derived from reactant containing at least one 1,2-epoxy group525/107, With saturated 1,2-epoxy reactant containing more than one 1,2-epoxy group per mole or polymer derived therefrom; or with solid copolymer derived from at least one saturated reactant and at least one unsaturated 1,2-epoxy reactant wherein the epoxy reactant contains more than one 1,2-epoxy group per mole525/113, With nitrogen-containing reactant, or wherein the poly 1,2-epoxy reactant contains a nitrogen atom525/529, Mixed with unsaturated reactant or polymer derived therefrom523/400, Process of forming a composition containing a nonreactive material (NRM) and a polymer containing more than one 1,2-epoxy group, or a preformed polymer derived from or admixed with a reactant containing more than one 1,2-epoxy group, or with a polymer derived from an epihalohydrin and a polyhydric phenol or polyol; or composition or product thereof523/453, Organic sulfur compound DNRM427/8, MEASURING, TESTING, OR INDICATING525/112, Contacting polymer from ethylenic reactants only with ethylenic reactant wherein said contacting is either concurrent with or subsequent to the contacting with the saturated poly 1,2-epoxy reactant427/386, Epoxy or polyepoxide containing coating524/495, Mixing with carbon, e.g., graphite, etc., having numerical limitations, other than amount, e.g., included herein are particle size, surface area, etc., or composition or product thereof, DNRM525/191, Polymer mixture of two or more solid polymers derived from ethylenically unsaturated reactants only; or mixtures of said polymer mixture with a chemical treating agent; or products or processes of preparing any of the above mixtures525/192Treating polymer or polymer mixture with a chemical treating agent other than solid polymerExaminersPrimary: Feely, Michael JAttorney, Agent or FirmForeign Patent References
International ClassC08L 63/00AbstractOverall, ebonite coatings or elastomeric linings are not recommended for direct immersion in sulfuric acid with higher than 65% concentration. By blending a chemical resistant epoxy resin to an ebonite coating, the resulting epoxy ebonite composition can be employed in more severe environment such as direct immersion in >65% sulfuric acid. In particular, the present invention provides a blend of an epoxy coating with an ebonite coating with a mix ratio of 95/5 to 5/95, the resulting epoxy ebonite composition of which has greatly increased adhesion to steel and excellent resistance to undercut corrosion when subjected to salt spray. The epoxy ebonite composition according to the present invention can be used as coatings, adhesives, encapsulants or sealants and is particularly useful as industrial coatings that are subject to wide temperature variations, salt contamination or chemical attack.Other References
Field of SearchWith saturated 1,2-epoxy reactant containing more than one 1,2-epoxy group per mole or polymer derived therefrom; or with solid copolymer derived from at least one saturated reactant and at least one unsaturated 1,2-epoxy reactant wherein the epoxy reactant contains more than one 1,2-epoxy group per moleWith nitrogen-containing reactant, or wherein the poly 1,2-epoxy reactant contains a nitrogen atom Solid polymer contains more than one 1,2-epoxy group or is derived from reactant containing at least one 1,2-epoxy group Mixed with unsaturated reactant or polymer derived therefrom Process of forming a composition containing a nonreactive material (NRM) and a polymer containing more than one 1,2-epoxy group, or a preformed polymer derived from or admixed with a reactant containing more than one 1,2-epoxy group, or with a polymer derived from an epihalohydrin and a polyhydric phenol or polyol; or composition or product thereof Designated nonreactive material (DNRM) has numerically specified characteristics, e.g., particle size, density, etc., other than viscosity, m.p., b.p., molec. wt., chemical composition or percentage range Silicon | |
