A multi-coat coating system having an undercoat composition and an overcoat composition, wherein the undercoat, overcoat or both the undercoat and overcoat contain a polymer having segments of a specified formula and are substantially free of polyhydric phenols having estrogenic activity greater than or equal to that of bisphenol S. The coating system is suitable for use on a food-contact surface of food or beverage containers.

The invention provides an epoxy compound A represented by the following formula (1): ##STR00001## in the formula (1), Ar's each independently represent a structure having an unsubstituted or substituted aromatic ring; R.sub.1 and R.sub.2 each independently represent a hydrogen atom or an alkyl group having 1 or 2 carbon atoms; R.sub.3 to R.sub.8 represent a hydroxy group, a glycidyl ether group and/or a 2-methylglycidyl ether group, and at least one of R.sub.3 to R.sub.8 is a glycidyl ether group or a 2-methylglycidyl ether group; R.sub.9 to R.sub.12 represent a hydroxy group or a methyl group; n is an integer of 11 to 16; and m, p.sub.1, p.sub.2, and q are average values of repetition, m is 0.5 to 10, p.sub.1 and p.sub.2 are each independently 0 to 5, and q is 0.5 to 5 (provided that each repeating unit present in the repeating units may be the same or different).

The present teachings provide for a two-part system and a method of using the two-part system, the two-part system comprising: a first component including one or more epoxy resins; a second component including one or more phosphate esters; and wherein, upon mixing the first component and second component a cured elastomeric composition is formed in a temperature of about 0° C. to about 50° C.

An epoxy resin component(s) for a recyclable epoxy resin system is disclosed. The recyclable epoxy resin system comprises an epoxy resin component having a structural Formula I or an epoxy resin component having a structural Formula II and a curing agent. A process(es) for preparing the epoxy resin component having the structural Formula I and the epoxy resin system having the structural Formula II is also disclosed.

Coating compositions for coating an oilfield operational component, and related methods, may include in some aspects a coating composition having a trifunctional silane, a silanol, and a filler. The coating composition may be applied to a surface of the oilfield operational component that is configured to be exposed to a fluid. The coating composition may be applied to at least partially cover or coat the surface. The coating composition may be configured to chemically bond with a cured primer composition that includes an epoxy.

A latent curable, single component, epoxy resin with a viscosity at 25° C. of between 50 and 100 poise may include, by weight: i) 60-90% of epichlorohydrin and bisphenol F; ii) 10-40% of epichlorohydrin and bisphenol A; and iii) 2-10% of a reactive catalyst, which is an encapsulated aliphatic polyamine, which cures above 80° C.

A curable green epoxy resin composition is described. More particularly, the curable green epoxy resin composition includes a biobinder isolated from bio-oil produced from animal waste, such as from swine manure. The biobinder can act as a curing agent for an epoxy resin component in the resin composition. Cured green epoxy resins, prepregs containing the curable green epoxy resin, and related composite materials are described. In addition, methods of preparing the curable green epoxy resin composition and of curing the curable green epoxy resin.

A catalyst includes a carbon black support and active metal particles. A surface of the carbon black support has a relative atomic percentage of oxygen atoms ranged from 2 atom % to 12 atom %. The active metal particles are distributed on the carbon black support. Each of the active metal particles includes rhodium metal and rhodium oxide. A method for manufacturing the catalyst and a method for hydrogenating an aromatic epoxy compound are also provided herein.

A method for producing a bisphenol or the like by using a chemical recycling method that is moderate, has a small environmental load, and can efficiently degrade a polycarbonate resin is provided. In addition, a method for producing a recycled polycarbonate resin or the like by using a useful substance such as the bisphenol or the like is provided. A method for producing a bisphenol, including degrading a polycarbonate resin in the presence of an aromatic monoalcohol, water, and a catalyst. A method for producing carbon dioxide, including recovering carbon dioxide generated by the method for producing a bisphenol. A method for producing a carbonic acid diester by using the carbon dioxide. A method for producing a recycled polycarbonate resin by using the bisphenol and/or the carbonic acid diester. A method for producing an epoxy resin and a method for producing an epoxy resin cured product, by using the bisphenol

An example of a flow cell includes a substrate and a cured, patterned resin on the substrate. The cured, patterned resin has nano-depressions separated by interstitial regions. Each nano-depression has a largest opening dimension ranging from about 10 nm to about 1000 nm. The cured, patterned resin also includes an interpenetrating polymer network. The interpenetrating polymer network of the cured, patterned resin includes an epoxy-based polymer and a (meth)acryloyl-based polymer.